Proposed Rule2022-15848
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
July 26, 2022
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA proposes to adopt a new airworthiness directive (AD) for all The Boeing Company Model 777 airplanes. This proposed AD was prompted by fuel system reviews conducted by the manufacturer. This proposed AD would require, depending on the airplane configuration, installation of Teflon sleeves, cap sealing of fasteners, detailed inspections, and corrective actions. This proposed AD would also require revising the existing maintenance or inspection program, as applicable, to incorporate more restrictive airworthiness limitations (AWLs). The FAA is proposing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 87 Issue 142 (Tuesday, July 26, 2022)</title>
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[Federal Register Volume 87, Number 142 (Tuesday, July 26, 2022)]
[Proposed Rules]
[Pages 44285-44288]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-15848]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-0810; Project Identifier AD-2021-01238-T]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for all The Boeing Company Model 777 airplanes. This proposed AD was
prompted by fuel system reviews conducted by the manufacturer. This
proposed AD would require, depending on the airplane configuration,
installation of Teflon sleeves, cap sealing of fasteners, detailed
inspections, and corrective actions. This proposed AD would also
require revising the existing maintenance or inspection program, as
applicable, to incorporate more restrictive airworthiness limitations
(AWLs). The FAA is proposing this AD to address the unsafe condition on
these products.
DATES: The FAA must receive comments on this proposed AD by September
9, 2022.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
<bullet> Federal eRulemaking Portal: Go to <a href="http://www.regulations.gov">www.regulations.gov</a>.
Follow the instructions for submitting comments.
<bullet> Fax: 202-493-2251.
<bullet> Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
<bullet> Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For service information identified in this NPRM, contact Boeing
Commercial Airplanes, Attention: Contractual & Data Services (C&DS),
2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-5600;
telephone 562-797-1717; internet <a href="http://www.myboeingfleet.com">www.myboeingfleet.com</a>. 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. Boeing Alert Service Bulletin 777-57A0050, Revision 6, dated
August 18, 2021, is also available at <a href="http://www.regulations.gov">www.regulations.gov</a> by searching
for and locating Docket No. FAA-2022-0810.
Examining the AD Docket
You may examine the AD docket at <a href="http://www.regulations.gov">www.regulations.gov</a> by searching
for and locating Docket No. FAA-2022-0810; 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 NPRM, any comments
received, and other information. The street address for Docket
Operations is listed above.
FOR FURTHER INFORMATION CONTACT: Kevin Nguyen, Aerospace Engineer,
Propulsion Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des
Moines, WA 98198; phone and fax: 206-231-3555; email:
<a href="/cdn-cgi/l/email-protection#523937243b3c7c3c35272b373c123433337c353d24"><span class="__cf_email__" data-cfemail="2b404e5d424505454c5e524e456b4d4a4a054c445d">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under ADDRESSES. Include ``Docket No. FAA-2022-0810; Project Identifier
AD-2021-01238-T'' at the beginning of your comments. The most helpful
comments reference a specific portion of the proposal, explain the
reason for any recommended change, and include supporting data. The FAA
will consider all comments received by the closing date and may amend
this proposal because of those comments.
Except for Confidential Business Information (CBI) as described in
the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to
<a href="http://www.regulations.gov">www.regulations.gov</a>, including any personal information you provide.
The agency will also post a report summarizing each substantive verbal
contact received about this NPRM.
Confidential Business Information
CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this NPRM contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this NPRM, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this NPRM. Submissions containing CBI should be sent to Kevin
Nguyen, Aerospace Engineer, Propulsion Section, FAA, Seattle ACO
Branch, 2200 South 216th St., Des Moines, WA 98198; phone and fax: 206-
231-3555; email: <a href="/cdn-cgi/l/email-protection#29424c5f404707474e5c504c47694f4848074e465f"><span class="__cf_email__" data-cfemail="f29997849b9cdc9c95878b979cb2949393dc959d84">[email protected]</span></a>. Any commentary that the FAA
receives that is not specifically designated as CBI will be placed in
the public docket for this rulemaking.
Background
The FAA has examined the underlying safety issues involved in fuel
tank explosions on several large transport airplanes, including the
adequacy of existing regulations, the service history of airplanes
subject to those regulations, and existing maintenance practices for
fuel tank systems. As a result of those findings, the FAA issued a
regulation titled ``Transport Airplane Fuel Tank System Design Review,
Flammability Reduction and Maintenance and Inspection Requirements''
(66 FR 23086, May 7, 2001). In addition to new airworthiness standards
for transport airplanes and new maintenance requirements, this rule
included Special Federal Aviation Regulation No. 88 (SFAR 88),
Amendment 21-78. Subsequently, SFAR 88 was amended by Amendment 21-82
(67 FR 57490, September 10, 2002; corrected at 67 FR 70809, November
26, 2002) and Amendment 21-83 (67 FR 72830, December 9, 2002; corrected
at 68 FR 37735, June 25, 2003, to change ``21-82'' to ``21-83'').
Among other actions, SFAR 88 requires certain type design (i.e.,
type certificate (TC) and supplemental type certificate (STC)) holders
to substantiate that their fuel tank systems can prevent ignition
sources in the fuel tanks. This requirement applies to type design
holders for large turbine-powered
[[Page 44286]]
transport airplanes and for subsequent modifications to those
airplanes. It requires them to perform design reviews and to develop
design changes and maintenance procedures if their designs do not meet
the new fuel tank safety standards. As explained in the preamble to the
rule, the FAA intended to adopt airworthiness directives to mandate any
changes found necessary to address unsafe conditions identified as a
result of these reviews.
In evaluating these design reviews, the FAA has established four
criteria intended to define the unsafe conditions associated with fuel
tank systems that require corrective actions. The percentage of
operating time during which fuel tanks are exposed to flammable
conditions is one of these criteria. The other three criteria address
the failure types under evaluation: Single failures, combination of
failures, and unacceptable (failure) experience. For all three failure
criteria, the evaluations included consideration of previous actions
taken that may mitigate the need for further action.
The FAA has determined that the actions identified in this proposed
AD are necessary 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.
The FAA issued AD 2017-11-14, Amendment 39-18913 (82 FR 25954, June
6, 2017) (AD 2017-11-14), for certain The Boeing Company Model 777-200,
-200LR, -300, and -300ER series airplanes, to prevent arcing inside the
main and center fuel tanks in the event of a fault current or lightning
strike, which, in combination with flammable fuel vapors, could result
in a fuel tank explosion and consequent loss of the airplane.
AD 2017-11-14 requires certain inspections for certain airplanes,
corrective actions if necessary, and installation of Teflon sleeves
under certain wire bundle clamps.
Since the FAA issued AD 2017-11-14, it was discovered that more
airplanes are affected by the identified unsafe condition, and
additional work is required for airplanes on which an earlier revision
of the service information was done.
FAA's Determination
The FAA is issuing this NPRM after determining that the unsafe
condition described previously is likely to exist or develop on other
products of the same type design.
Related Service Information Under 1 CFR Part 51
The FAA reviewed Boeing Alert Service Bulletin 777-57A0050,
Revision 6, dated August 18, 2021. This service information specifies
applicable actions that vary depending on the airplane configuration,
such as procedures for the installation of Teflon sleeves, cap sealing
of fasteners, detailed inspections, and corrective actions. The
detailed inspection of and installation of Teflon sleeves includes
various locations, such as the rear spar wire bundles, inboard and
outboard front spar wire bundles, wing-to-body fairing and
environmental control system (ECS) bay wire bundles, front and rear
spar bulkhead wire bundles, and wing rear spar wire bundles. The
detailed inspection of and cap sealing of fasteners include fasteners
in the center fuel tank, left and right main fuel tanks, and right
cheek portion of the center fuel tank. Corrective actions include
installing Teflon sleeve, installing clamp, and cap sealing fasteners.
The FAA also reviewed Section 9, Airworthiness Limitations (AWLs)
and Certification Maintenance Requirements (CMRs), D622W001-9, dated
March 2022, of Boeing 777 200/200LR/300/300ER/777F Maintenance Planning
Data (MPD) Document. This service information specifies, among other
airworthiness limitations, 28-AWL-31 and 28-AWL-32 that address cushion
clamps and Teflon sleeving installed on out-of-tank wire bundles
installed on brackets that are mounted directly on the fuel tanks.
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.
Proposed AD Requirements in This NPRM
This proposed AD would require doing all applicable actions (i.e.,
installation of Teflon sleeves, cap sealing of fasteners, detailed
inspections, and corrective actions) identified in Boeing Alert Service
Bulletin 777-57A0050, Revision 6, dated August 18, 2021. This proposed
AD would also require revising the existing maintenance or inspection
program, as applicable, to incorporate AWLs 28-AWL-31 and 28-AWL-32 as
identified in Section 9, Airworthiness Limitations (AWLs) and
Certification Maintenance Requirements (CMRs), D622W001-9, dated March
2022. For information on the procedures and compliance times for the
applicable actions specified in paragraph (g) of this AD, see Boeing
Alert Service Bulletin 777-57A0050, Revision 6, dated August 18, 2021,
at <a href="http://www.regulations.gov">www.regulations.gov</a> by searching for and locating Docket No. FAA-
2022-0810.
This proposed AD would require revisions to certain operator
maintenance documents to include new actions (e.g., inspections) and
Critical Design Configuration Control Limitations (CDCCLs). Compliance
with these actions and CDCCLs is required by 14 CFR 91.403(c). For
airplanes that have been previously modified, altered, or repaired in
the areas addressed by this proposed AD, the operator may not be able
to accomplish the actions described in the revisions. In this
situation, to comply with 14 CFR 91.403(c), the operator must request
approval for an alternative method of compliance according to paragraph
(m) of this proposed AD.
This NPRM would not supersede AD 2017-11-14. Rather, the FAA has
determined that a stand-alone AD would be more appropriate to address
the changes. Accomplishment of the actions required by paragraph (g) of
this proposed AD would then terminate the requirements of paragraphs
(g)(1), (i), and (j) of AD 2017-11-14.
In addition, accomplishment of the revision required by paragraph
(i) of this proposed AD would terminate the requirements of paragraphs
(g)(6) and (h) of AD 2021-24-12, Amendment 39-21833 (86 FR 73660,
December 28, 2021) (AD 2021-24-12). AD 2021-24-12 requires revising the
existing maintenance or inspection program, as applicable, to
incorporate multiple AWLs, including 28-AWL-31 and 28-AWL-32.
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would
affect 282 airplanes of U.S. registry. The FAA estimates the following
costs to comply with this proposed AD:
[[Page 44287]]
Estimated Costs *
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Cost on U.S.
Action Labor cost Parts cost Cost per product operators
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Installations, cap sealing, and Up to 545 work- Up to $3,510...... Up to $49,835..... Up to $14,053,470.
inspections. hours x $85 per
hour = $46,325.
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* Table does not include estimated costs for revising the existing maintenance or inspection program.
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).
The FAA estimates the following costs to do any necessary
corrective actions that would be required based on the results of the
proposed inspections. The agency has no way of determining the number
of aircraft that might need these actions:
On-Condition Costs
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Action Labor cost Parts cost Cost per product
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Corrective actions................... Up to 26 work-hours x Up to $3,510........... Up to $5,720.
$85 per hour = $2,210.
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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
The FAA determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would 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 this proposed
regulation:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Would not affect intrastate aviation in Alaska, and
(3) Would 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 Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 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:
The Boeing Company: Docket No. FAA-2022-0810; Project Identifier AD-
2021-01238-T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by September 9, 2022.
(b) Affected ADs
(1) This AD affects AD 2017-11-14, Amendment 39-18913 (82 FR
25954, June 6, 2017) (AD 2017-11-14).
(2) This AD also affects AD 2021-24-12, Amendment 39-21833 (86
FR 73660, December 28, 2021) (AD 2021-24-12).
(c) Applicability
This AD applies to all The Boeing Company Model 777-200, -200LR,
-300, -300ER, and 777F series airplanes, certificated in any
category.
(d) Subject
Air Transport Association (ATA) of America Code 57, Wings.
(e) Unsafe Condition
This AD was prompted by fuel system reviews conducted by the
manufacturer. The FAA is issuing this AD to prevent arcing inside
the main and center fuel tanks in the event of a fault current or
lightning strike, which, in combination with flammable fuel vapors,
could result in a fuel tank explosion and consequent loss of the
airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Service Bulletin Actions
For airplanes identified in Boeing Alert Service Bulletin 777-
57A0050, Revision 6, dated August 18, 2021: Except as specified in
paragraph (h) of this AD, at the applicable times specified in
paragraph 1.E., ``Compliance,'' of Boeing Alert Service Bulletin
777-57A0050, Revision 6, dated August 18, 2021, do all applicable
actions (i.e., installation of Teflon sleeves, cap sealing of
fasteners, detailed inspections, and corrective actions) identified
in, and in accordance with, the Accomplishment Instructions of
Boeing Alert Service Bulletin 777-57A0050, Revision 6, dated August
18, 2021. Do all applicable corrective actions before further
flight.
(h) Exceptions to Service Information Specifications
(1) Where Boeing Alert Service Bulletin 777-57A0050, Revision 6,
dated August 18, 2021, uses the phrase ``the revision 5 date of
[[Page 44288]]
this service bulletin'' or ``the revision 6 date of this service
bulletin,'' this AD requires using ``the effective date of this
AD.''
(2) Where circle symbol 1 of sheet 2 of Figures 172, 173, and
174 of Boeing Alert Service Bulletin 777-57A0050, Revision 6, dated
August 18, 2021, points to the outboard side of rib no. 9 for the
locate and cap seal task or the inspection task, as applicable, in
step 1 of sheet 3, for this AD, circle symbol 1 points to the seven
fasteners located at the inboard side of rib no. 9.
(3) Where circle symbol 1, next to the text ``7 locations,'' of
sheet 2 of Figure 175 and Figure 176 of Boeing Alert Service
Bulletin 777-57A0050, Revision 6, dated August 18, 2021, points to
the outboard side of rib no. 9 for the locate and cap seal task or
the inspection task, as applicable, in step 1 of sheet 3, for this
AD, circle symbol 1, next to the text ``7 locations,'' points to the
seven fasteners located at the inboard side of rib no. 9.
(4) Where circle symbol 1, next to the text ``7 locations,'' of
sheet 4 of Figure 179 and Figure 180 of Boeing Alert Service
Bulletin 777-57A0050, Revision 6, dated August 18, 2021, points to
the outboard side of rib no. 9 for the locate and cap seal task or
the inspection task, as applicable, in step 1 of sheet 6, for this
AD, circle symbol 1, next to the text ``7 locations,'' points to the
seven fasteners located at the inboard side of rib no. 9.
(i) 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 for 28-AWL-31 and 28-AWL-32 specified in
Section D, ``Airworthiness Limitations-Systems,'' including
Subsections D.1, of Section 9, Airworthiness Limitations (AWLs) and
Certification Maintenance Requirements (CMRs), D622W001-9, dated
March 2022, of Boeing 777-200/200LR/300/300ER/777F Maintenance
Planning Data (MPD) Document, except as specified in paragraph (j)
of this AD. The initial compliance time for doing airworthiness
limitation instructions (ALI) task 28-AWL-32 is at the applicable
time specified in paragraph (i)(1) or (2) of this AD:
(1) For airplanes having line numbers (L/Ns) 1 through 503
inclusive: Within 3,750 days after accomplishment of the actions
specified in Boeing Service Bulletin 777-57A0050, or within 60
months after the effective date of this AD, whichever occurs later.
(2) For airplanes having L/Ns 504 and subsequent: Within 3,750
days after the date of issuance of the original airworthiness
certificate or the date of issuance of the original export
certificate of airworthiness; or within 60 months after the
effective date of this AD; whichever occurs later.
(j) Exceptions to the AWLs
The following exceptions apply to 28-AWL-31 and 28-AWL-32 of
Section D, ``Airworthiness Limitations--Systems,'' including
Subsections D.1 of Section 9, Airworthiness Limitations (AWLs) and
Certification Maintenance Requirements (CMRs), D622W001-9, dated
March 2022, of Boeing 777-200/200LR/300/300ER/777F Maintenance
Planning Data (MPD) Document.
(1) In paragraph 1.i., change ``Front Spar Bulkhead (Center
Tank)'' to ``Front Spar Bulkhead (Center Wing Tank Fuel Quantity
Greater than 12,400 Gallons).''
(2) In paragraph 1.i.II, change ``For 777-200, 777-200LR, 777-
300, and 777-300ER airplanes, L/N 562 and on'' to ``L/N 562 and on,
except 777F.''
(3) In paragraph 1.i.III., change ``For 777F airplanes, L/N 718
and on'' to ``For 777F airplanes.''
(4) In paragraph 1.j., change ``Rear Spar Bulkhead (Center
Tank)'' to ``Rear Spar Bulkhead (Center Wing Tank Fuel Quantity
Greater than 12,400 Gallons).''
(k) 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 (i) 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 (m) of this AD.
(l) Terminating Action for Certain Requirements of AD 2017-11-14 and AD
2021-24-12
(1) Accomplishment of the actions required by paragraph (g) of
this AD terminates the requirements of paragraphs (g)(1), (i), and
(j) of AD 2017-11-14.
(2) Accomplishment of the revision required by paragraph (i) of
this AD terminates the requirements of paragraphs (g)(6) and (h) of
AD 2021-24-12.
(m) 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 (n)(1) of this AD. Information may be
emailed to: <a href="/cdn-cgi/l/email-protection#3c05117d7271116f595d48485059117d7f73117d71737f116e594d49594f484f7c5a5d5d125b534a"><span class="__cf_email__" data-cfemail="ac9581ede2e181ffc9cdd8d8c0c981edefe381ede1e3ef81fec9ddd9c9dfd8dfeccacdcd82cbc3da">[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.
(n) Related Information
(1) For more information about this AD, contact Kevin Nguyen,
Aerospace Engineer, Propulsion Section, FAA, Seattle ACO Branch,
2200 South 216th St., Des Moines, WA 98198; phone and fax: 206-231-
3555; email: <a href="/cdn-cgi/l/email-protection#7f141a0916115111180a061a113f191e1e51181009"><span class="__cf_email__" data-cfemail="d4bfb1a2bdbafabab3a1adb1ba94b2b5b5fab3bba2">[email protected]</span></a>.
(2) For 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; telephone 562-797-1717; internet <a href="http://www.myboeingfleet.com">www.myboeingfleet.com</a>. You
may view this referenced 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.
Issued on June 30, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2022-15848 Filed 7-25-22; 8:45 am]
BILLING CODE 4910-13-P
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