Rule2023-13155
Airworthiness Directives; The Boeing Company Airplanes
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
June 21, 2023
Effective
June 21, 2023
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is superseding Airworthiness Directive (AD) 2022-09- 18, which applied to all The Boeing Company Model 707, 717, and 727 airplanes; Model DC-8, DC-9, and DC-10 airplanes; Model MD-10 and MD-11 airplanes; Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC- 9-87 (MD-87), and MD-88 airplanes; and Model MD 90-30 airplanes. AD 2022-09-18 required revising the limitations and operating procedures sections of the existing airplane flight manual (AFM) to incorporate specific operating procedures for, depending on the airplane model, instrument landing system (ILS) approaches, non-precision approaches, ground spoiler deployment, and go-around and missed approaches, when in the presence of interference from wireless broadband operations in the 3.7-3.98 GHz frequency band (5G C-Band) as identified by Notices to Air Missions (NOTAMs). Since the FAA issued AD 2022-09-18, the FAA determined that additional limitations are needed due to the continued deployment of new 5G C-Band stations whose signals are expected to cover most of the contiguous United States at transmission frequencies between 3.7-3.98 GHz. This AD requires revising the limitations and operating procedures sections of the AFM to incorporate specific operating procedures for, depending on the airplane model, ILS approaches, non-precision approaches, ground spoiler deployment, and go-around and missed approaches, due to the presence of 5G C-Band interference. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 88 Issue 118 (Wednesday, June 21, 2023)</title>
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[Federal Register Volume 88, Number 118 (Wednesday, June 21, 2023)]
[Rules and Regulations]
[Pages 40023-40058]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2023-13155]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2023-0923; Project Identifier AD-2022-01432-T;
Amendment 39-22473; AD 2023-12-15]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2022-09-
18, which applied to all The Boeing Company Model 707, 717, and 727
airplanes; Model DC-8, DC-9, and DC-10 airplanes; Model MD-10 and MD-11
airplanes; Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-
9-87 (MD-87), and MD-88 airplanes; and Model MD 90-30 airplanes. AD
2022-09-18 required revising the limitations and operating procedures
sections of the existing airplane flight manual (AFM) to incorporate
specific operating procedures for, depending on the airplane model,
instrument landing system (ILS) approaches, non-precision approaches,
ground spoiler deployment, and go-around and missed approaches, when in
the presence of interference from wireless broadband operations in the
3.7-3.98 GHz frequency band (5G C-Band) as identified by Notices to Air
Missions (NOTAMs). Since the FAA issued AD 2022-09-18, the FAA
determined that additional limitations are needed due to the continued
deployment of new 5G C-Band stations whose signals are expected to
cover most of the contiguous United States at transmission frequencies
between 3.7-3.98 GHz. This AD requires revising the limitations and
operating procedures
[[Page 40024]]
sections of the AFM to incorporate specific operating procedures for,
depending on the airplane model, ILS approaches, non-precision
approaches, ground spoiler deployment, and go-around and missed
approaches, due to the presence of 5G C-Band interference. The FAA is
issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective June 21, 2023.
ADDRESSES: AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a>
under Docket No. FAA-2023-0923; or in person at Docket Operations
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains this final rule, any comments
received, and other information. The address for Docket Operations is
U.S. Department of Transportation, Docket Operations, M-30, West
Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE,
Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Brett Portwood, Continued Operational
Safety Technical Advisor, COS Program Management Section, Operational
Safety Branch, FAA, 3960 Paramount Boulevard, Lakewood, CA 90712-4137;
phone: 817-222-5390; email: <a href="/cdn-cgi/l/email-protection#2b445b4e594a5f4244454a47584a4d4e5f526b4d4a4a054c445d"><span class="__cf_email__" data-cfemail="0b647b6e796a7f6264656a67786a6d6e7f724b6d6a6a256c647d">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to supersede AD 2022-09-18, Amendment 39-22038 (87 FR
31097, May 23, 2022) (AD 2022-09-18). AD 2022-09-18 applied to all The
Boeing Company (Boeing) Model 707, 717, and 727 airplanes; Model DC-8,
DC-9, and DC-10 airplanes; Model MD-10 and MD-11 airplanes; Model DC-9-
81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), and MD-
88 airplanes; and Model MD 90-30 airplanes. The NPRM published in the
Federal Register on May 3, 2023 (88 FR 27749). The NPRM was prompted by
a determination that radio altimeters cannot be relied upon to perform
their intended function if they experience 5G C-Band interference, and
a determination that during approach, landings, and go-arounds, as a
result of this interference, certain airplane systems may not properly
function, resulting in increased flightcrew workload while on approach
with the flight director, autothrottle, or autopilot engaged.
In the NPRM, the FAA proposed to retain the AFM revisions required
by AD 2022-09-18 until June 30, 2023. On or before June 30, 2023, the
FAA proposed to require replacing those AFM revisions with limitations
requiring the same procedures for, depending on the airplane model, ILS
approaches, non-precision approaches, ground spoiler deployment, and
go-around and missed approaches, at all airports for non-radio
altimeter tolerant airplanes. For radio altimeter tolerant airplanes,
the FAA proposed that the procedures would not be required at 5G C-Band
mitigated airports (5G CMAs) as identified in an FAA Domestic Notice.
The FAA proposed this AD to address 5G C-Band interference that could
result in increased flightcrew workload and could lead to reduced
ability of the flightcrew to maintain safe flight and landing of the
airplane.
Discussion of Final Airworthiness Directive
Comments
The FAA provided the public with an opportunity to comment on the
proposed AD and received comments from three commenters. The following
presents the comments received on the NPRM and the FAA's response to
each comment.
Support for NPRM
Boeing and the Air Line Pilots Association, International (ALPA),
supported the NPRM without change.
The supportive comments from ALPA included additional viewpoints
without a suggestion specific to the AD or a request the FAA can act
on. These comments are outside the scope of this final rule.
Request To Extend Compliance Time
Comment summary: American Airlines expressed concern regarding the
compliance time for the proposed actions and requested the FAA revise
the AD to provide a minimum of 30 days from the effective date of the
AD.
FAA response: The FAA understands the commenter's concern and made
every effort to publish this AD as soon as possible. After refraining
from operating at their FCC-authorized levels for a year and a half,
wireless companies are now able to operate at higher levels, yet still
not at the levels authorized. Specifically, wireless companies expect
to operate their networks in urban areas with minimal restrictions due
to the completion of retrofits. Additionally, the FAA anticipates 19
additional telecommunication companies will begin transmitting in the
C-Band after June 30, 2023. Although the FAA continues to work with the
companies that intend to transmit in the 3.7-3.98-GHz band near 5G
CMAs, the FAA has no agreement with those companies to provide the FAA
with tower locations and other information necessary to support the
current NOTAM/AMOC process. Therefore, the FAA will not be able to
extend the June 30, 2023, date.
Conclusion
The FAA reviewed the relevant data, considered any comments
received, and determined that air safety requires adopting this AD as
proposed. Accordingly, the FAA is issuing this AD to address the unsafe
condition on these products. This AD is adopted as proposed in the
NPRM.
Interim Action
The FAA considers this AD to be an interim action. Once the
Technical Standard Order (TSO) standard for radio altimeters is
established, which will follow the existing international technical
consensus on the establishment of the minimum operational performance
standards (MOPS), the FAA anticipates that the MOPS will be
incorporated into the TSO. Once a new radio altimeter TSO is developed,
approved, and available, the FAA might consider additional rulemaking.
Effective Date
Section 553(d) of the Administrative Procedure Act (APA) (5 U.S.C.
551 et seq.) requires publication of a rule not less than 30 days
before its effective date. However, section 553(d) authorizes agencies
to make rules effective in less than 30 days when the agency finds
``good cause.'' Radio altimeters cannot be relied upon to perform their
intended function if they experience interference from wireless
broadband operations in the 5G C-Band. This interference can cause
other airplane systems to not properly function, resulting in increased
flightcrew workload while on approach with the flight director,
autothrottle, or autopilot engaged. To address this unsafe condition,
the actions required by this AD must be accomplished before the
compliance date of June 30, 2023. The FAA based this date on the
changes to the 5G C-Band environment beginning on July 1, 2023. These
changes include increased wireless broadband deployment and
transmissions closer to the parameters authorized by the FCC. The
earlier operators learn of the requirements in this AD, the earlier
they can take action to ensure compliance. An effective date less than
30 days would ensure the AD is codified earlier, thereby increasing
awareness of its requirements. Therefore, the FAA finds that good cause
exists pursuant to 5 U.S.C. 553(d)
[[Page 40025]]
for making this amendment immediately effective.
Costs of Compliance
The cost information below describes the costs to change the AFM.
Although this AD largely maintains the AFM limitations currently
required by AD 2022-09-18, the FAA acknowledges that this AD may also
impose costs on some aircraft operators from having to change their
conduct to comply with the amended AFM. However, the FAA lacks the data
necessary to quantify the costs associated with aircraft operators
changing their conduct.
The FAA estimates that this AD affects 476 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
AFM revision (retained actions from AD 1 work-hour x $85 per $0 $85 $40,460
2022-09-18). hour \1\ = $85.
New AFM revisions (new action)........ 1 work-hour x $85 per 0 85 \2\ 40,460
hour = $85.
----------------------------------------------------------------------------------------------------------------
\1\ The labor rate of $85 per hour is the average wage rate for an aviation mechanic.
\2\ The estimated cost for this revision would not constitute a significant economic impact (even for small
entities) because $85 is a minimal cost compared to the regular costs of maintaining and operating a 707, 717,
727, DC-8, DC-9, DC-10, MD 10, MD-11, DC-9-81, DC-9-82, DC-9-83, DC-9-87, MD-88, or MD-90-30 transport
category airplane.
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. Subtitle VII: Aviation Programs,
describes in more detail the scope of the Agency's authority.
The FAA is issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701: General requirements.
Under that section, Congress charges the FAA with promoting safe flight
of civil aircraft in air commerce by prescribing regulations for
practices, methods, and procedures the Administrator finds necessary
for safety in air commerce. This regulation is within the scope of that
authority because it addresses an unsafe condition that is likely to
exist or develop on products identified in this rulemaking action.
Regulatory Findings
This AD will not have federalism implications under Executive Order
13132. This AD will not have a substantial direct effect on the States,
on the relationship between the national government and the States, or
on the distribution of power and responsibilities among the various
levels of government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Will not affect intrastate aviation in Alaska, and
(3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
The Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by:
0
a. Removing Airworthiness Directive (AD) 2022-09-18, Amendment 39-22038
(87 FR 31097, May 23, 2022), and
0
b. Adding the following new AD:
2023-12-15 The Boeing Company: Amendment 39-22473; Docket No. FAA-
2023-0923; Project Identifier AD-2022-01432-T.
(a) Effective Date
This airworthiness directive (AD) is effective June 21, 2023.
(b) Affected ADs
This AD replaces AD 2022-09-18, Amendment 39-22038 (87 FR 31097,
May 23, 2022) (AD 2022-09-18).
(c) Applicability
This AD applies to all The Boeing Company airplanes identified
in paragraphs (c)(1) through (9) of this AD, certificated in any
category.
(1) Model 707-100 Long Body, -200, -100B Long Body, and -100B
Short Body series airplanes, and Model 707-300, -300B, -300C, and -
400 series airplanes.
(2) Model 717-200 airplanes.
(3) Model 727, 727C, 727-100, 727-100C, 727-200, and 727-200F
series airplanes.
(4) Model DC-8-11, DC-8-12, DC-8-21, DC-8-31, DC-8-32, DC-8-33,
DC-8-41, DC-8-42, DC-8-43, DC-8-51, DC-8-52, DC-8-53, DC-8-55, DC-
8F-54, DC-8F-55, DC-8-61, DC-8-62, DC-8-63, DC-8-61F, DC-8-62F, DC-
8-63F, DC-8-71, DC-8-72, DC-8-73, DC-8-71F, DC-8-72F, and DC-8-73F
airplanes.
(5) Model DC-9-11, DC-9-12, DC-9-13, DC-9-14, DC-9-15, DC-9-15F,
DC-9-21, DC-9-31, DC-9-32, DC-9-32 (VC-9C), DC-9-32F, DC-9-32F (C-
9A, C-9B), DC-9-33F, DC-9-34, DC-9-34F, DC-9-41, and DC-9-51
airplanes.
(6) Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F
(KC-10A and KDC-10), DC-10-40, and DC-10-40F airplanes.
(7) Model MD-10-10F and MD-10-30F airplanes.
(8) Model MD-11 and MD-11F airplanes.
(9) Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-
9-87 (MD-87), MD-88, and MD-90-30 airplanes.
(d) Subject
Air Transport Association (ATA) of America Code 34, Navigation.
(e) Unsafe Condition
This AD was prompted by a determination that radio altimeters
cannot be relied upon to perform their intended function if they
experience interference from wireless broadband operations in the
3.7-3.98 GHz frequency band (5G C-Band), and a determination that
during approach, landings, and go-arounds, as a result of this
interference, certain airplane systems may not properly function,
resulting in increased flightcrew workload while on approach with
the flight director, autothrottle, or autopilot engaged. The FAA is
issuing this AD to address 5G C-Band interference that could result
in increased flightcrew workload and could lead to reduced ability
of the flightcrew to maintain safe flight and landing of the
airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Definitions
(1) For purposes of this AD, a ``5G C-Band mitigated airport''
(5G CMA) is an airport at
[[Page 40026]]
which the telecommunications companies have agreed to voluntarily
limit their 5G deployment at the request of the FAA, as identified
by an FAA Domestic Notice.
(2) For purposes of this AD, a ``radio altimeter tolerant
airplane'' is one for which the radio altimeter, as installed,
demonstrates the tolerances specified in paragraphs (g)(2)(i) and
(ii) of this AD, using a method approved by the FAA.
(i) Tolerance to radio altimeter interference, for the
fundamental emissions (3.7-3.98 GHz), at or above the power spectral
density (PSD) curve threshold specified in figure 1 to paragraph
(g)(2)(i) of this AD.
BILLING CODE 4910-13-P
Figure 1 to paragraph (g)(2)(i)--Fundamental Effective Isotropic PSD
at Outside Interface of Aircraft Antenna
[GRAPHIC] [TIFF OMITTED] TR21JN23.120
(ii) Tolerance to radio altimeter interference, for the spurious
emissions (3.7-3.98 GHz), at or above the PSD curve threshold
specified in figure 2 to paragraph (g)(2)(ii) of this AD.
[[Page 40027]]
Figure 2 to paragraph (g)(2)(ii)--Spurious Effective Isotropic PSD
at Outside Interface of Aircraft Antenna
[GRAPHIC] [TIFF OMITTED] TR21JN23.121
(3) For purposes of this AD, a ``non-radio altimeter tolerant
airplane'' is one for which the radio altimeter, as installed, does
not demonstrate the tolerances specified in paragraphs (g)(2)(i) and
(ii) of this AD.
(h) Retained Airplane Flight Manual (AFM) Revision-Limitations
This paragraph restates the requirements of paragraph (g) of AD
2022-09-18.
(1) For airplanes identified in paragraphs (c)(1) and (c)(3)
through (6) of this AD: Within 2 days after May 23, 2022 (the
effective date of AD 2022-09-18), revise the Limitations Section of
the existing AFM to include the information specified in figure 3 to
paragraph (h)(1) of this AD. This may be done by inserting a copy of
figure 3 to paragraph (h)(1) of this AD into the existing AFM.
[[Page 40028]]
Figure 3 to paragraph (h)(1)--AFM Limitations Revision for Model
707, 727, DC-8, DC-9 (except DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-
83 (MD-83), and DC-9-87 (MD-87)), and DC-10
[GRAPHIC] [TIFF OMITTED] TR21JN23.122
(2) For airplanes identified in paragraphs (c)(2), (7), and (8)
of this AD: Within 2 days after May 23, 2022 (the effective date of
AD 2022-09-18), revise the Limitations Section of the existing AFM
to include the information specified in figure 4 to paragraph (h)(2)
of this AD. This may be done by inserting a copy of figure 4 to
paragraph (h)(2) of this AD into the Limitations Section of the
existing AFM.
Figure 4 to paragraph (h)(2)--AFM Limitations Revision for Model
717, MD-10, and MD-11
[GRAPHIC] [TIFF OMITTED] TR21JN23.123
(3) For airplanes identified in paragraph (c)(9) of this AD:
Within 2 days after May 23, 2022 (the effective date of AD 2022-09-
18), revise the Limitations Section of the existing AFM to include
the information specified in figure 5 to paragraph (h)(3) of this
AD. This may be done by inserting a copy of figure 5 to paragraph
(h)(3) of this AD into the Limitations Section of the existing AFM.
[[Page 40029]]
Figure 5 to paragraph (h)(3)--AFM Limitations Revision for Model DC-
9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), MD-
88, and MD-90-30
[GRAPHIC] [TIFF OMITTED] TR21JN23.124
(i) Retained AFM Revision-Operating Procedures
This paragraph restates the requirements of paragraph (h) of AD
2022-09-18.
(1) For airplanes identified in paragraphs (c)(1) and (3)
through (6) of this AD: Within 2 days after May 23, 2022 (the
effective date of AD 2022-09-18), revise the Operating Procedures
Section of the existing AFM to include the information specified in
figure 6 to paragraph (i)(1) of this AD. This may be done by
inserting a copy of figure 6 to paragraph (i)(1) of this AD into the
Operating Procedures Section of the existing AFM.
Figure 6 to paragraph (i)(1)--AFM Operating Procedures Revision for
Model 707, 727, DC-8, DC-9 (except DC-9-81 (MD-81), DC-9-82 (MD-82),
DC-9-83 (MD-83), and DC-9-87 (MD-87)), and DC-10
[GRAPHIC] [TIFF OMITTED] TR21JN23.125
(2) For airplanes identified in paragraph (c)(2) of this AD:
Within 2 days after May 23, 2022 (the effective date of AD 2022-09-
18), revise the Operating Procedures Section of the existing AFM to
include the information specified in figure 7 to paragraph (i)(2) of
this AD. This may be done by inserting a copy of figure 7 to
paragraph (i)(2) of this AD into the Operating Procedures Section of
the existing AFM.
[[Page 40030]]
Figure 7 to paragraph (i)(2)--AFM Operating Procedures Revision for
Model 717
[GRAPHIC] [TIFF OMITTED] TR21JN23.126
(3) For airplanes identified in paragraph (c)(7) of this AD:
Within 2 days after May 23, 2022 (the effective date of AD 2022-09-
18), revise the Operating Procedures Section of the existing AFM to
include the information specified in figure 8 to paragraph (i)(3) of
this AD. This may be done by inserting a copy of figure 8 to
paragraph (i)(3) of this AD into the Operating Procedures Section of
the existing AFM.
[[Page 40031]]
Figure 8 to paragraph (i)(3)--AFM Operating Procedures Revision for
Model MD-10
[GRAPHIC] [TIFF OMITTED] TR21JN23.127
[[Page 40032]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.128
[[Page 40033]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.129
[[Page 40034]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.130
[[Page 40035]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.131
(4) For airplanes identified in paragraph (c)(8) of this AD:
Within 2 days after the effective date of this AD, revise the
Operating Procedures Section of the existing AFM to include the
information specified in figure 9 to paragraph (i)(4) of this AD.
This may be done by inserting a copy of figure 9 to paragraph (i)(4)
of this AD into the Operating Procedures Section of the existing
AFM.
[[Page 40036]]
Figure 9 to paragraph (i)(4)--AFM Operating Procedures Revision
for Model MD-11
[GRAPHIC] [TIFF OMITTED] TR21JN23.132
[[Page 40037]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.133
[[Page 40038]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.134
[[Page 40039]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.135
[[Page 40040]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.136
[[Page 40041]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.137
(5) For airplanes identified in paragraph (c)(9) of this AD:
Within 2 days after the effective date of this AD, revise the
Operating Procedures Section of the existing AFM to include the
information specified in figure 10 to paragraph (i)(5) of this AD.
This may be done by inserting a copy of figure 10 to paragraph
(i)(5) of this AD into the Operating Procedures Section of the
existing AFM.
Figure 10 to paragraph (i)(5)--AFM Operating Procedures Revision
for Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87
(MD-87), MD-88, and MD-90-30
[GRAPHIC] [TIFF OMITTED] TR21JN23.138
(j) New Requirement: AFM Limitations Revision for Non-Radio Altimeter
Tolerant Airplanes
(1) For non-radio altimeter tolerant airplanes identified in
paragraphs (c)(1) and (c)(3) through (6) of this AD, do the actions
specified in paragraphs (j)(1)(i) and (ii) of this AD.
(i) On or before June 30, 2023, revise the Limitations Section
of the existing AFM to include the information specified in figure
11 to paragraph (j)(1) of this AD. This may be done by inserting a
copy of figure 11 to paragraph (j)(1) of this AD into the existing
AFM. Incorporating the AFM revision required by this paragraph
terminates the AFM revision required by paragraph (h)(1) of this AD.
(ii) Before further flight after incorporating the limitations
specified in figure 11 to paragraph (j)(1) of this AD, remove the
AFM revision required by paragraph (h)(1) of this AD.
[[Page 40042]]
Figure 11 to paragraph (j)(1)--AFM Limitations Revision for Model
707, 727, DC-8, DC-9 (except DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-
83 (MD-83), and DC-9-87 (MD-87)), and DC-10
[GRAPHIC] [TIFF OMITTED] TR21JN23.139
(2) For non-radio altimeter tolerant airplanes identified in
paragraphs (c)(2), (7), and (8) of this AD, do the actions specified
in paragraphs (j)(2)(i) and (ii) of this AD.
(i) On or before June 30, 2023, revise the Limitations Section
of the existing AFM to include the information specified in figure
12 to paragraph (j)(2) of this AD. This may be done by inserting a
copy of figure 12 to paragraph (j)(2) of this AD into the existing
AFM. Incorporating the AFM revision required by this paragraph
terminates the AFM revision required by paragraph (h)(2) of this AD.
(ii) Before further flight after incorporating the limitations
specified in figure 12 to paragraph (j)(2) of this AD, remove the
AFM revision required by paragraph (h)(2) of this AD.
Figure 12 to paragraph (j)(2)--AFM Limitations Revision for Model
717, MD-10, and MD-11
[GRAPHIC] [TIFF OMITTED] TR21JN23.140
(3) For non-radio altimeter tolerant airplanes identified in
paragraph (c)(9) of this AD, do the actions specified in paragraphs
(j)(3)(i) and (ii) of this AD.
(i) On or before June 30, 2023, revise the Limitations Section
of the existing AFM to include the information specified in figure
13 to paragraph (j)(3) of this AD. This may be done by inserting a
copy of figure 13 to paragraph (j)(3) of this AD into the existing
AFM. Incorporating the AFM revision required by this paragraph
terminates the AFM revision required by paragraph (h)(3) of this AD.
(ii) Before further flight after incorporating the limitations
specified in figure 13 to paragraph (j)(3) of this AD, remove the
AFM revision required by paragraph (h)(3) of this AD.
[[Page 40043]]
Figure 13 to paragraph (j)(3)--AFM Limitations Revision for Model
DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87),
MD-88, and MD-90-30
[GRAPHIC] [TIFF OMITTED] TR21JN23.141
(k) New Requirement: AFM Limitations Revision for Radio Altimeter
Tolerant Airplanes
(1) For radio altimeter tolerant airplanes identified in
paragraphs (c)(1) and (c)(3) through (6) of this AD, do the actions
specified in paragraphs (k)(1)(i) and (ii) of this AD.
(i) On or before June 30, 2023, revise the Limitations Section
of the existing AFM to include the information specified in figure
14 to paragraph (k)(1) of this AD. This may be done by inserting a
copy of figure 14 to paragraph (k)(1) of this AD into the existing
AFM. Incorporating the AFM revision required by this paragraph
terminates the AFM revision required by paragraph (h)(1) of this AD.
(ii) Before further flight after incorporating the limitations
specified in figure 14 to paragraph (k)(1) of this AD, remove the
AFM revision required by paragraph (h)(1) of this AD.
Figure 14 to paragraph (k)(1)--AFM Limitations Revision for Model
707, 727, DC-8, DC-9 (except DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-
83 (MD-83), and DC-9-87 (MD-87)), and DC-10
[GRAPHIC] [TIFF OMITTED] TR21JN23.142
(2) For radio altimeter tolerant airplanes identified in
paragraphs (c)(2), (7), and (8) of this AD, do the actions specified
in paragraphs (k)(2)(i) and (ii) of this AD.
(i) On or before June 30, 2023, revise the Limitations Section
of the existing AFM to include the information specified in figure
15 to paragraph (k)(2) of this AD. This may be done by inserting a
copy of figure 15 to paragraph (k)(2) of this AD into the existing
AFM. Incorporating the AFM revision required by this paragraph
terminates the AFM revision required by paragraph (h)(2) of this AD.
(ii) Before further flight after incorporating the limitations
specified in figure 15 to paragraph (k)(2) of this AD, remove the
AFM revision required by paragraph (h)(2) of this AD.
[[Page 40044]]
Figure 15 to paragraph (k)(2)--AFM Limitations Revision for Model
717, MD-10, and MD-11
[GRAPHIC] [TIFF OMITTED] TR21JN23.143
(3) For radio altimeter tolerant airplanes identified in
paragraph (c)(9) of this AD, do the actions specified in paragraphs
(k)(3)(i) and (ii) of this AD.
(i) On or before June 30, 2023, revise the Limitations Section
of the existing AFM to include the information specified in figure
16 to paragraph (k)(3) of this AD. This may be done by inserting a
copy of figure 16 to paragraph (k)(3) of this AD into the existing
AFM. Incorporating the AFM revision required by this paragraph
terminates the AFM revision required by paragraph (h)(3) of this AD.
(ii) Before further flight after incorporating the limitations
specified in figure 16 to paragraph (k)(3) of this AD, remove the
AFM revision required by paragraph (h)(3) of this AD.
Figure 16 to paragraph (k)(3)--AFM Limitations Revision for Model
DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87),
MD-88, and MD-90-30
[GRAPHIC] [TIFF OMITTED] TR21JN23.144
(l) New Requirement: AFM Operating Procedures Revision
(1) For airplanes identified in paragraphs (c)(1) and (3)
through (6) of this AD, do the actions specified in paragraphs
(l)(1)(i) and (ii) of this AD.
(i) On or before June 30, 2023, revise the Operating Procedures
Section of the existing AFM to include the information specified in
figure 17 to paragraph (l)(1) of this AD. This may be done by
inserting a copy of figure 17 to paragraph (l)(1) of this AD into
the Operating Procedures Section of the existing AFM. Incorporating
the AFM revision required by this paragraph terminates the AFM
revision required by paragraph (i)(1) of this AD.
(ii) Before further flight after incorporating the limitations
specified in figure 17 to paragraph (l)(1) of this AD, remove the
AFM revision required by paragraph (i)(1) of this AD.
[[Page 40045]]
Figure 17 to paragraph (1)(1)--AFM Operating Procedures Revision for
Model 707, 727, DC-8, DC-9 (except DC-9-81 (MD-81), DC-9-82 (MD-82),
DC-9-83 (MD-83), and DC-9-87 (MD-87)), and DC-10
[GRAPHIC] [TIFF OMITTED] TR21JN23.145
(2) For airplanes identified in paragraph (c)(2) of this AD, do
the actions specified in paragraphs (l)(2)(i) and (ii) of this AD.
(i) On or before June 30, 2023, revise the Operating Procedures
Section of the existing AFM to include the information specified in
figure 18 to paragraph (l)(2) of this AD. This may be done by
inserting a copy of figure 18 to paragraph (l)(2) of this AD into
the Operating Procedures Section of the existing AFM. Incorporating
the AFM revision required by this paragraph terminates the AFM
revision required by paragraph (i)(2) of this AD.
(ii) Before further flight after incorporating the limitations
specified in figure 18 to paragraph (l)(2) of this AD, remove the
AFM revision required by paragraph (i)(2) of this AD.
Figure 18 to paragraph (l)(2)--AFM Operating Procedures Revision for
Model 717
[GRAPHIC] [TIFF OMITTED] TR21JN23.146
[[Page 40046]]
(3) For airplanes identified in paragraph (c)(7) of this AD, do
the actions specified in paragraphs (l)(3)(i) and (ii) of this AD.
(i) On or before June 30, 2023, revise the Operating Procedures
Section of the existing AFM to include the information specified in
figure 19 to paragraph (l)(3) of this AD. This may be done by
inserting a copy of figure 19 to paragraph (l)(3) of this AD into
the Operating Procedures Section of the existing AFM. Incorporating
the AFM revision required by this paragraph terminates the AFM
revision required by paragraph (i)(3) of this AD.
(ii) Before further flight after incorporating the limitations
specified in figure 19 to paragraph (l)(3) of this AD, remove the
AFM revision required by paragraph (i)(3) of this AD.
Figure 19 to paragraph (l)(3)--AFM Operating Procedures Revision for
Model MD-10
[GRAPHIC] [TIFF OMITTED] TR21JN23.147
[[Page 40047]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.148
[[Page 40048]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.149
[[Page 40049]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.150
[[Page 40050]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.151
[[Page 40051]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.152
(4) For airplanes identified in paragraph (c)(8) of this AD, do
the actions specified in paragraphs (l)(4)(i) and (ii) of this AD.
(i) On or before June 30, 2023, revise the Operating Procedures
Section of the existing AFM to include the information specified in
figure 20 to paragraph (l)(4) of this AD. This may be done by
inserting a copy of figure 20 to paragraph (l)(4) of this AD into
the Operating Procedures Section of the existing AFM. Incorporating
the AFM revision required by this paragraph terminates the AFM
revision required by paragraph (i)(4) of this AD.
(ii) Before further flight after incorporating the limitations
specified in figure 20 to paragraph (l)(4) of this AD, remove the
AFM revision required by paragraph (i)(4) of this AD.
[[Page 40052]]
Figure 20 to paragraph (l)(4)--AFM Operating Procedures Revision for
Model MD-11
[GRAPHIC] [TIFF OMITTED] TR21JN23.153
[[Page 40053]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.154
[[Page 40054]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.155
[[Page 40055]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.156
[[Page 40056]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.157
[[Page 40057]]
[GRAPHIC] [TIFF OMITTED] TR21JN23.158
(5) For airplanes identified in paragraph (c)(9) of this AD, do
the actions specified in paragraphs (l)(5)(i) and (ii) of this AD.
(i) On or before June 30, 2023, revise the Operating Procedures
Section of the existing AFM to include the information specified in
figure 21 to paragraph (l)(5) of this AD. This may be done by
inserting a copy of figure 21 to paragraph (l)(5) of this AD into
the Operating Procedures Section of the existing AFM. Incorporating
the AFM revision required by this paragraph terminates the AFM
revision required by paragraph (i)(5) of this AD.
(ii) Before further flight after incorporating the limitations
specified in figure 21 to paragraph (l)(5) of this AD, remove the
AFM revision required by paragraph (i)(5) of this AD.
[[Page 40058]]
Figure 21 to paragraph (l)(5)--AFM Operating Procedures Revision for
Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87
(MD-87), MD-88, and MD-90-30
[GRAPHIC] [TIFF OMITTED] TR21JN23.159
(m) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Operational Safety Branch, FAA, has the
authority to approve AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19,
send your request to your principal inspector or responsible Flight
Standards Office, as appropriate. If sending information directly to
the manager of the Operational Safety Branch, send it to the
attention of the person identified in paragraph (n) of this AD.
Information may be emailed to: <a href="/cdn-cgi/l/email-protection#72333f3d31321413135c151d04"><span class="__cf_email__" data-cfemail="66272b29252600070748010910">[email protected]</span></a>.
(2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the responsible Flight Standards Office.
(3) AMOCs approved for AD 2021-23-12, Amendment 39-21810 (86 FR
69984, December 9, 2021) providing relief for specific radio
altimeter installations are approved as AMOCs for the requirements
specified in paragraph (h) of this AD until June 30, 2023.
(n) Related Information
For more information about this AD, contact Brett Portwood,
Continued Operational Safety Technical Advisor, COS Program
Management Section, Operational Safety Branch, FAA, 3960 Paramount
Boulevard, Lakewood, CA 90712-4137; phone: 817-222-5390; email:
<a href="/cdn-cgi/l/email-protection#5a352a3f283b2e3335343b36293b3c3f2e231a3c3b3b743d352c"><span class="__cf_email__" data-cfemail="6807180d1a091c01070609041b090e0d1c11280e0909460f071e">[email protected]</span></a>.
(o) Material Incorporated by Reference
None.
Issued on June 9, 2023.
Michael Linegang,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2023-13155 Filed 6-16-23; 11:15 am]
BILLING CODE 4910-13-C
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