Rule2023-06044
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
March 27, 2023
Effective
May 1, 2023
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 747-400, -400D, and -400F series airplanes. This AD was prompted by the FAA's analysis of the Model 747 airplane fuel system reviews conducted by the manufacturer, and by the determination that new or more restrictive airworthiness limitations are necessary. This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. 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 58 (Monday, March 27, 2023)</title>
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[Federal Register Volume 88, Number 58 (Monday, March 27, 2023)]
[Rules and Regulations]
[Pages 18016-18019]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2023-06044]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-1170; Project Identifier AD-2022-00023-T;
Amendment 39-22345; AD 2023-03-20]
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 adopting a new airworthiness directive (AD) for all
The Boeing Company Model 747-400, -400D, and -400F series airplanes.
This AD was prompted by the FAA's analysis of the Model 747 airplane
fuel system reviews conducted by the manufacturer, and by the
determination that new or more restrictive airworthiness limitations
are necessary. This AD requires revising the existing maintenance or
inspection program, as applicable, to incorporate new or more
restrictive airworthiness limitations. The FAA is issuing this AD to
address the unsafe condition on these products.
DATES: This AD is effective May 1, 2023.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of May 1, 2023.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> by
searching for and locating Docket No. FAA-2022-1170; 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.
Material Incorporated by Reference:
<bullet> For service information identified in this final rule,
contact Boeing Commercial Airplanes, Attention: Contractual & Data
Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA
90740-5600; phone: (562) 797-1717; website: <a href="http://myboeingfleet.com">myboeingfleet.com</a>.
<bullet> You may view this service information at the FAA,
Airworthiness Products Section, Operational Safety Branch, 2200 South
216th St., Des Moines, WA. For information on the availability of this
material at the FAA, call (206) 231-3195. It is also available at
<a href="http://regulations.gov">regulations.gov</a> by searching for and locating Docket No. FAA-2022-1170.
FOR FURTHER INFORMATION CONTACT: Samuel Dorsey, Aerospace Engineer,
Propulsion Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des
Moines, WA 98198; phone: (206) 231-3415; email <a href="/cdn-cgi/l/email-protection#abf8cac6decec785e185efc4d9d8ced2ebcdcaca85ccc4dd"><span class="__cf_email__" data-cfemail="e0b3818d95858cceaacea48f92938599a0868181ce878f96">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to all The Boeing Company
Model 747-400, -400D, and -400F series airplanes. The NPRM published in
the Federal Register on November 4, 2022 (87 FR 66615). The NPRM was
prompted by the FAA's analysis of the fuel system reviews on Model 747-
400, -400D, and -400F series airplanes conducted by the manufacturer,
and by the determination that new or more restrictive airworthiness
limitations are necessary. In the NPRM, the FAA proposed to require
revising the existing maintenance or inspection program, as applicable,
to incorporate new or more restrictive airworthiness limitations.
Discussion of Final Airworthiness Directive
Comments
The FAA received comments from the Air Line Pilots Association,
International (ALPA), Boeing, and an individual, who supported the NPRM
without change.
The FAA received an additional comment from Delta Air Lines, Inc.
(Delta). The following presents the comment received on the NPRM and
the FAA's response to the comment.
Request To Allow Use of Latest Revision of Service Information
Delta requested that the FAA allow operators the option to
incorporate Section B, Airworthiness Limitations--Systems, of Section
9, Airworthiness Limitations (AWLs) and Certification Maintenance
Requirements (CMRs), of Boeing 747-400 Maintenance Planning Data (MPD)
Document, D621U400-9, dated April 2022, in lieu of the September 2021
revision specified in the NPRM. Delta stated that allowing operators
the option to incorporate this latest MPD will provide an opportunity
to ensure the most current information is incorporated into their
maintenance program and avoid the potential for additional alternative
methods of compliance (AMOCs) in the immediate future when the final
rule is published.
The FAA agrees with the request for the reasons stated above. The
FAA has revised the reference to Section B, Airworthiness Limitations--
Systems, of Section 9, Airworthiness Limitations (AWLs) and
Certification Maintenance Requirements (CMRs), of Boeing 747-400
Maintenance Planning Data (MPD) Document, D621U400-9, in paragraph (g)
of this AD from ``September 2021'' to ``April 2022.'' The FAA reviewed
this revision and determined it does not require additional work or
impose any substantive changes to the actions proposed in the NPRM.
The FAA has also added paragraph (k) of this AD to provide credit
for operators who have revised the existing maintenance or inspection
program, as applicable, before the effective date of this AD, to
incorporate the information specified in Section B, Airworthiness
Limitations--Systems, of Section 9, Airworthiness Limitations (AWLs)
and Certification Maintenance Requirements (CMRs), of Boeing 747-400
Maintenance Planning Data (MPD) Document, D621U400-9, dated September
2021. This change imposes no additional burden on operators who are
required to comply with this AD.
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. Except for minor editorial changes, and
any other changes described previously, this AD is adopted as proposed
in the NPRM. None of the changes will increase the economic burden on
any operator.
Related Service Information Under 1 CFR Part 51
The FAA reviewed Section 9, Airworthiness Limitations (AWLs) and
Certification Maintenance Requirements (CMRs), of Boeing 747-400
Maintenance
[[Page 18017]]
Planning Data (MPD) Document, D621U400-9, dated April 2022. This
service information specifies airworthiness limitations for fuel tank
systems. This service information is reasonably available because the
interested parties have access to it through their normal course of
business or by the means identified in ADDRESSES.
Costs of Compliance
The FAA estimates that this AD affects 119 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
The FAA has determined that revising the existing maintenance or
inspection program takes an average of 90 work-hours per operator,
although the agency recognizes that this number may vary from operator
to operator. Since operators incorporate maintenance or inspection
program changes for their affected fleet(s), the FAA has determined
that a per-operator estimate is more accurate than a per-airplane
estimate. Therefore, the FAA estimates the average total cost per
operator to be $7,650 (90 work-hours x $85 per work-hour).
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 adding the following new airworthiness
directive:
2023-03-20 The Boeing Company: Amendment 39-22345; Docket No. FAA-
2022-1170; Project Identifier AD-2022-00023-T.
(a) Effective Date
This airworthiness directive (AD) is effective May 1, 2023.
(b) Affected ADs
This AD affects the ADs specified in paragraphs (b)(1) through
(7) of this AD.
(1) AD 2008-10-06 R1, Amendment 39-16160 (75 FR 906, January 7,
2010) (AD 2008-10-06 R1).
(2) AD 2008-18-09, Amendment 39-15666 (73 FR 52911, September
12, 2008) (AD 2008-18-09).
(3) AD 2010-13-12, Amendment 39-16343 (75 FR 37997, July 1,
2010) (AD 2010-13-12).
(4) AD 2010-14-08, Amendment 39-16353 (75 FR 38397, July 2,
2010) (AD 2010-14-08).
(5) AD 2011-06-03, Amendment 39-16627 (76 FR 15814, March 22,
2011) (AD 2011-06-03).
(6) AD 2014-15-14, Amendment 39-17916 (79 FR 45324, August 5,
2014) (AD 2014-15-14).
(7) AD 2016-19-03, Amendment 39-18652 (81 FR 65872, September
26, 2016) (AD 2016-19-03).
(c) Applicability
This AD applies to all The Boeing Company Model 747-400, -400D,
and -400F series airplanes, certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 28, Fuel.
(e) Unsafe Condition
This AD was prompted by the FAA's analysis of the fuel system
reviews on Model 747-400, -400D, and -400F series airplanes
conducted by the manufacturer, and by the determination that new or
more restrictive airworthiness limitations are necessary. The FAA is
issuing this AD to reduce the potential of ignition sources inside
fuel tanks, which, in combination with flammable fuel vapors, could
result in fuel tank explosions and consequent loss of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Maintenance or Inspection Program Revision
Within 60 days after the effective date of this AD, revise the
existing maintenance or inspection program, as applicable, to
incorporate the information specified in Section B, Airworthiness
Limitations--Systems, of Section 9, Airworthiness Limitations (AWLs)
and Certification Maintenance Requirements (CMRs), of Boeing 747-400
Maintenance Planning Data (MPD) Document, D621U400-9, dated April
2022; except as provided by paragraph (h) of this AD. The initial
compliance time for doing the airworthiness limitation instruction
(ALI) tasks is at the times specified in paragraphs (g)(1) through
(13) of this AD.
(1) For AWL No. 28-AWL-01, ``External Wires Over Center Fuel
Tank'': At the applicable time specified in paragraph (g)(1)(i) or
(ii) of this AD.
(i) For airplanes that did not have any version of AWL No. 28-
AWL-01 in their maintenance or inspection program before the
effective date of this AD: Within 144 months since issuance of the
original airworthiness certificate or original export certificate of
airworthiness, or within 12 months after the effective date of this
AD, whichever occurs later.
(ii) For airplanes not identified in paragraph (g)(1)(i) of this
AD: Within 144 months since AWL No. 28-AWL-01 was added to the
maintenance or inspection program, or within 144 months after the
most recent inspection was performed as specified in AWL No. 28-AWL-
01, whichever occurs later.
(2) For AWL No. 28-AWL-03, ``Fuel Quantity Indication System
(FQIS)--Out of Tank Wiring Lightning Shield to Ground Termination'':
At the applicable time specified in paragraph (g)(2)(i) or (ii) of
this AD.
(i) For airplanes that did not have any version of AWL No. 28-
AWL-03 in their maintenance or inspection program before the
effective date of this AD: Within 144 months since issuance of the
original airworthiness certificate or original export certificate of
airworthiness, or within 12 months after the effective date of this
AD, whichever occurs later.
(ii) For airplanes not identified in paragraph (g)(2)(i) of this
AD: Within 144 months since AWL No. 28-AWL-03 was
[[Page 18018]]
added to the maintenance or inspection program, or within 144 months
after the most recent inspection was performed as specified in AWL
No. 28-AWL-03, whichever occurs later.
(3) For AWL No. 28-AWL-10, ``Main Tank, Center Wing Tank, and
Horizontal Stabilizer Tank (if installed) Refuel Valve
Installation--Fault Current Bond'': At the applicable time specified
in paragraph (g)(3)(i) or (ii) of this AD.
(i) For airplanes that did not have any version of AWL No. 28-
AWL-10 in their maintenance or inspection program before the
effective date of this AD: Within 144 months since issuance of the
original airworthiness certificate or original export certificate of
airworthiness, or within 12 months after the effective date of this
AD, whichever occurs later.
(ii) For airplanes not identified in paragraph (g)(3)(i) of this
AD: Within 144 months since AWL No. 28-AWL-10 was added to the
maintenance or inspection program, or within 144 months after the
most recent inspection was performed as specified in AWL No. 28-AWL-
10, whichever occurs later.
(4) For AWL No. 28-AWL-17, ``Over-Current and Arcing Protection
Electrical Design Features Operation--Fault Current Detector (FCD)
for Center Wing Tank (CWT) Pumps and Inboard Main Tank Override/
Jettison (O/J) Pumps and Horizontal Stabilizer Tank (HST) Transfer
Fuel Pumps'': At the applicable time specified in paragraph
(g)(4)(i) or (ii) of this AD.
(i) For airplanes that did not have any version of AWL No. 28-
AWL-17 in their maintenance or inspection program before the
effective date of this AD: Within 18 months since issuance of the
original airworthiness certificate or original export certificate of
airworthiness, or within 90 days after the effective date of this
AD, whichever occurs later.
(ii) For airplanes not identified in paragraph (g)(4)(i) of this
AD: Within 18 months since AWL No. 28-AWL-17 was added to the
maintenance or inspection program, or within 18 months after the
most recent inspection was performed as specified in AWL No. 28-AWL-
17, whichever occurs later.
(5) For AWL No. 28-AWL-24, ``Horizontal Stabilizer Tank (HST)
Fuel Pump Automatic Shutoff Circuit (If Installed)'': At the
applicable time specified in paragraph (g)(5)(i) or (ii) of this AD.
(i) For airplanes that did not have any version of AWL No. 28-
AWL-24 in their maintenance or inspection program before the
effective date of this AD: Within 12 months since issuance of the
original airworthiness certificate or original export certificate of
airworthiness, or within 90 days after the effective date of this
AD, whichever occurs later.
(ii) For airplanes not identified in paragraph (g)(5)(i) of this
AD: Within 12 months since AWL No. 28-AWL-24 was added to the
maintenance or inspection program, or within 12 months after the
most recent inspection was performed as specified in AWL No. 28-AWL-
24, whichever occurs later.
(6) For AWL No. 28-AWL-26, ``Main Tank 2 and Main Tank 3
Override/Jettison Fuel Pump Uncommanded on System'': At the
applicable time specified in paragraph (g)(6)(i) or (ii) of this AD.
(i) For airplanes that did not have any version of AWL No. 28-
AWL-26 in their maintenance or inspection program before the
effective date of this AD: Within 12 months since issuance of the
original airworthiness certificate or original export certificate of
airworthiness, or within 90 days after the effective date of this
AD, whichever occurs later.
(ii) For airplanes not identified in paragraph (g)(6)(i) of this
AD: Within 12 months since AWL No. 28-AWL-26 was added to the
maintenance or inspection program, or within 12 months after the
most recent inspection was performed as specified in AWL No. 28-AWL-
26, whichever occurs later.
(7) For AWL No. 28-AWL-28, ``Over-Current and Arcing Protection
Electrical Design Features Operation--Main Tank AC Fuel Pump Ground
Fault Interrupter (GFI)'': At the applicable time specified in
paragraph (g)(7)(i) or (ii) of this AD.
(i) For airplanes that did not have any version of AWL No. 28-
AWL-28 in their maintenance or inspection program before the
effective date of this AD: Within 12 months since issuance of the
original airworthiness certificate or original export certificate of
airworthiness, or within 90 days after the effective date of this
AD, whichever occurs later.
(ii) For airplanes not identified in paragraph (g)(7)(i) of this
AD: Within 12 months since AWL No. 28-AWL-28 was added to the
maintenance or inspection program, or within 12 months after the
most recent inspection was performed as specified in AWL No. 28-AWL-
28, whichever occurs later.
(8) For AWL No. 28-AWL-29, ``Over-Current and Arcing Protection
Electrical Design Features Operation--Center Tank Scavenge AC Fuel
Pump Ground Fault Interrupter (GFI)'': At the applicable time
specified in paragraph (g)(8)(i) or (ii) of this AD.
(i) For airplanes that did not have any version of AWL No. 28-
AWL-29 in their maintenance or inspection program before the
effective date of this AD: Within 12 months since issuance of the
original airworthiness certificate or original export certificate of
airworthiness, or within 90 days after the effective date of this
AD, whichever occurs later.
(ii) For airplanes not identified in paragraph (g)(8)(i) of this
AD: Within 12 months since AWL No. 28-AWL-29 was added to the
maintenance or inspection program, or within 12 months after the
most recent inspection was performed as specified in AWL No. 28-AWL-
29, whichever occurs later.
(9) For AWL No. 28-AWL-33, ``Cushion Clamps and Teflon Sleeving
Installed on Out-of-Tank Wire Bundles Installed on Brackets that are
Mounted Directly on the Fuel Tanks,'' at the applicable time
specified in paragraph (g)(9)(i) or (ii) of this AD.
(i) For airplanes that did not have any version of AWL No. 28-
AWL-33 in their maintenance or inspection program before the
effective date of this AD: Within 144 months since issuance of the
original airworthiness certificate or original export certificate of
airworthiness, or within 12 months after the effective date of this
AD, whichever occurs later.
(ii) For airplanes not identified in paragraph (g)(9)(i) of this
AD: Within 144 months since AWL No. 28-AWL-33 was added to the
maintenance or inspection program, or within 144 months after the
most recent inspection was performed as specified in AWL No. 28-AWL-
33, whichever occurs later.
(10) For AWL No. 28-AWL-40, ``Reserve Tank Refuel Valve
Installation--Lightning Protection Electrical Bond,'' at the
applicable time specified in paragraph (g)(10)(i) or (ii) of this
AD.
(i) For airplanes that did not have any version of AWL No. 28-
AWL-40 in their maintenance or inspection program before the
effective date of this AD: Within 72 months since issuance of the
original airworthiness certificate or original export certificate of
airworthiness, or within 12 months after the effective date of this
AD, whichever occurs later.
(ii) For airplanes not identified in paragraph (g)(10)(i) of
this AD: Within 72 months since AWL No. 28-AWL-40 was added to the
maintenance or inspection program, or within 72 months after the
most recent inspection was performed as specified in AWL No. 28-AWL-
40, whichever occurs later.
(11) For AWL No. 47-AWL-07, ``Nitrogen Generation System--
Nitrogen Enriched Air (NEA) Distribution Ducting Inspection,'' at
the applicable time specified in paragraph (g)(11)(i) or (ii) of
this AD.
(i) For airplanes that did not have any version of AWL No. 47-
AWL-07 in their maintenance or inspection program before the
effective date of this AD: Within 21,250 total flight hours since
issuance of the original airworthiness certificate or original
export certificate of airworthiness, or within 4 months after the
effective date of this AD, whichever occurs later.
(ii) For airplanes not identified in paragraph (g)(11)(i) of
this AD: Within 21,250 total flight hours since AWL No. 47-AWL-07
was added to the maintenance or inspection program, or within 21,250
total flight hours after the most recent inspection was performed as
specified in AWL No. 47-AWL-07, whichever occurs later.
(12) For AWL No. 47-AWL-08, ``Nitrogen Generation System [NGS]--
Cross-Vent Check Valve Functional Check,'' at the applicable time
specified in paragraph (g)(12)(i) or (ii) of this AD.
(i) For airplanes that did not have any version of AWL No. 47-
AWL-08 in their maintenance or inspection program before the
effective date of this AD: Within 21,250 total flight hours since
issuance of the original airworthiness certificate or original
export certificate of airworthiness, or within 4 months after the
effective date of this AD, whichever occurs later.
(ii) For airplanes not identified in paragraph (g)(12)(i) of
this AD: Within 21,250 total flight hours since AWL No. 47-AWL-
[[Page 18019]]
08 was added to the maintenance or inspection program, or within
21,250 total flight hours after the most recent inspection was
performed as specified in AWL No. 47-AWL-08, whichever occurs later.
(13) For AWL No. 47-AWL-10, ``NGS--Thermal Switch,'' at the
applicable time specified in paragraph (g)(13)(i) or (ii) of this
AD.
(i) For airplanes that did not have any version of AWL No. 47-
AWL-10 in their maintenance or inspection program before the
effective date of this AD: Within 54,000 total flight hours since
issuance of the original airworthiness certificate or original
export certificate of airworthiness, or within 4 months after the
effective date of this AD, whichever occurs later.
(ii) For airplanes not identified in paragraph (g)(13)(i) of
this AD: Within 54,000 total flight hours since AWL No. 47-AWL-10
was added to the maintenance or inspection program, or within 54,000
total flight hours after the most recent inspection was performed as
specified in AWL No. 47-AWL-10, whichever occurs later.
(h) Additional Acceptable Wire Types and Sleeving
As an option, during accomplishment of the actions required by
paragraph (g) of this AD, the alternative materials specified in
paragraphs (h)(1) and (2) of this AD are acceptable.
(1) Where AWL No. 28-AWL-08 identifies wire types BMS 13-48, BMS
13-58, and BMS 13-60, the following wire types, as applicable, are
acceptable: MIL-W-22759/16, SAE AS22759/16 (M22759/16), MIL-W-22759/
32, SAE AS22759/32 (M22759/32), MIL-W-22759/34, SAE AS22759/34
(M22759/34), MIL-W-22759/41, SAE AS22759/41 (M22759/41), MIL-W-
22759/86, SAE AS22759/86 (M22759/86), MIL-W-22759/87, SAE AS22759/87
(M22759/87), MIL-W-22759/92, and SAE AS22759/92 (M22759/92); and
MIL-C-27500 and NEMA WC 27500 cables constructed from these military
or SAE specification wire types.
(2) Where AWL No. 28-AWL-08 identifies TFE-2X Standard wall for
wire sleeving, the following sleeving materials are acceptable:
Roundit 2000NX and Varglas Type HO, HP, or HM, as applicable.
(i) No Alternative Actions, Intervals, or Critical Design Configuration
Control Limitations (CDCCLs)
After the existing maintenance or inspection program has been
revised as required by paragraph (g) of this AD, no alternative
actions (e.g., inspections), intervals, or CDCCLs may be used unless
the actions, intervals, and CDCCLs are approved as an alternative
method of compliance (AMOC) in accordance with the procedures
specified in paragraph (l) of this AD.
(j) Terminating Actions
(1) Accomplishing the actions required by paragraph (g) of this
AD terminates all requirements of AD 2008-10-06 R1.
(2) Accomplishing the actions required by paragraph (g) of this
AD terminates paragraph (g)(2) of AD 2008-18-09 for Model 747-400, -
400D, and -400F airplanes only.
(3) Accomplishing the actions required by paragraph (g) of this
AD terminates paragraph (h)(1) of AD 2010-13-12 for Model 747-400, -
400D, and -400F airplanes only.
(4) Accomplishing the actions required by this AD terminates
paragraph (j) of AD 2010-14-08.
(5) Accomplishing the actions required by paragraph (g) of this
AD terminates paragraph (l) of AD 2011-06-03 for Model 747-400, -
400D, and -400F airplanes only.
(6) Accomplishing the actions required by paragraph (g) of this
AD terminates paragraph (h)(1) of AD 2014-15-14 for Model 747-400, -
400D, and -400F airplanes only.
(7) Accomplishing the actions required by paragraph (g) of this
AD terminates paragraph (h) of AD 2016-19-03 for Model 747-400, -
400D, and -400F airplanes only.
(k) Credit for Previous Actions
This paragraph provides credit for the actions specified in
paragraph (g) of this AD, if those actions were performed before the
effective date of this AD using Section B, Airworthiness
Limitations--Systems, of Section 9, AWLs and CMRs, of Boeing 747-400
MPD Document, D621U400-9, dated September 2021.
(l) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Seattle ACO 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 certification office, send it to the attention of the person
identified in paragraph (m) of this AD. Information may be emailed
to: <a href="/cdn-cgi/l/email-protection#8db4a0ccc3c0a0dee8ecf9f9e1e8a0cccec2a0ccc0c2cea0dfe8fcf8e8fef9fecdebececa3eae2fb"><span class="__cf_email__" data-cfemail="e1d8cca0afacccb2848095958d84cca0a2aecca0acaea2ccb384909484929592a1878080cf868e97">[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) An AMOC that provides an acceptable level of safety may be
used for any repair, modification, or alteration required by this AD
if it is approved by The Boeing Company Organization Designation
Authorization (ODA) that has been authorized by the Manager, Seattle
ACO Branch, FAA, to make those findings. To be approved, the repair
method, modification deviation, or alteration deviation must meet
the certification basis of the airplane, and the approval must
specifically refer to this AD.
(m) Related Information
For more information about this AD, contact Samuel Dorsey,
Aerospace Engineer, Propulsion Section, FAA, Seattle ACO Branch,
2200 South 216th St., Des Moines, WA 98198; phone: (206) 231-3415;
email: <a href="/cdn-cgi/l/email-protection#bbe8dad6ceded795f195ffd4c9c8dec2fbdddada95dcd4cd"><span class="__cf_email__" data-cfemail="4e1d2f233b2b226004600a213c3d2b370e282f2f60292138">[email protected]</span></a>.
(n) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless the AD specifies otherwise.
(i) Section 9, Airworthiness Limitations (AWLs) and
Certification Maintenance Requirements (CMRs), of Boeing 747-400
Maintenance Planning Data (MPD) Document, D621U400-9, dated April
2022.
(ii) [Reserved]
(3) For Boeing service information identified in this AD,
contact Boeing Commercial Airplanes, Attention: Contractual & Data
Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA
90740-5600; phone: (562) 797-1717; website: <a href="http://myboeingfleet.com">myboeingfleet.com</a>.
(4) You may view this service information at FAA, Airworthiness
Products Section, Operational Safety Branch, 2200 South 216th St.,
Des Moines, WA. For information on the availability of this material
at the FAA, call (206) 231-3195.
(5) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, email: <a href="/cdn-cgi/l/email-protection#6204104c0b0c11120701160b0d0c220c0310034c050d14"><span class="__cf_email__" data-cfemail="086e7a2661667b786d6b7c6167664866697a69266f677e">[email protected]</span></a>, or go to: <a href="http://www.archives.gov/federal-register/cfr/ibr-locations.html">www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued on February 10, 2023.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2023-06044 Filed 3-24-23; 8:45 am]
BILLING CODE 4910-13-P
</pre><script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script></body>
</html>Indexed from Federal Register on March 27, 2023.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.