Airworthiness Directives; The Boeing Company Airplanes, 46679-46681 [2023-15297]

Download as PDF Federal Register / Vol. 88, No. 138 / Thursday, July 20, 2023 / Rules and Regulations P.O. Box 2206, Savannah, GA 31402–2206; telephone 800–810–4853; email pubs@ gulfstream.com; website gulfstream.com/en/ customer-support/. 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. (j) Material Incorporated by Reference None. Issued on July 13, 2023. Victor Wicklund, Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2023–15255 Filed 7–19–23; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2023–0432; Project Identifier AD–2022–01384–T; Amendment 39–22457; AD 2023–11–11] RIN 2120–AA64 Airworthiness Directives; The Boeing Company Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 747–8 and 747– 8F series airplanes. This AD was prompted by reports of cracks in stringers, common to the end fittings, forward and aft of the pressure bulkhead at station (STA) 2360 at multiple stringer locations. This AD requires repetitive inspections of stringer sidewalls and certain stringer assemblies, common to the end fittings, forward and aft of the pressure bulkhead at STA 2360 for any crack, and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective August 24, 2023. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of August 24, 2023. SUMMARY: ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA–2023–0432; 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: • 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; telephone 562–797–1717; website myboeingfleet.com. • You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th Street, Des Moines, WA. For information on the availability of this material at the FAA, call 206–231–3195. It is also available at regulations.gov under Docket No. FAA– 2023–0432. FOR FURTHER INFORMATION CONTACT: Stefanie Roesli, Aviation Safety Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone: 206– 231–3964; email: stefanie.n.roesli@ faa.gov. 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 747–8 and 747–8F series airplanes. The NPRM published in the Federal Register on April 6, 2023 (88 FR 20431). The NPRM was prompted by reports of cracks in the stringers, common to the end fittings, forward and aft of the pressure bulkhead at STA 2360. An investigation found that during airplane assembly, un-shimmed or incorrectly shimmed gaps, which were larger than engineering requirements, caused excessive and sustained internal tensile stresses and resulted in stress corrosion cracking in the stringers. In the NPRM, 46679 the FAA proposed to require repetitive inspections of stringer sidewalls and certain stringer assemblies, common to the end fittings, forward and aft of the pressure bulkhead at STA 2360 for any crack, and applicable on-condition actions. This condition, if not addressed, could result in an undetected crack in the stringers, resulting in the inability of a structural element to sustain limit load which could adversely affect the structural integrity of the airplane. Discussion of Final Airworthiness Directive Comments The FAA received comments from Boeing and an individual who supported the NPRM without change. 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, 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 Boeing Alert Requirements Bulletin 747–53A2910 RB, dated September 21, 2022. This service information specifies procedures for repetitive low frequency eddy current (LFEC) and high frequency eddy current (HFEC) inspections of the stringer sidewalls; repetitive detailed inspections of certain stringer assemblies; and applicable on-condition actions. On-condition actions include repair. 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 section. Costs of Compliance The FAA estimates that this AD affects 44 airplanes of U.S. registry. The FAA estimates the following costs to comply with this AD: lotter on DSK11XQN23PROD with RULES1 ESTIMATED COSTS Action Labor cost Inspection of stringers ............... Up to 110 work-hours × $85 per hour = Up to $9,350 per inspection cycle. VerDate Sep<11>2014 15:57 Jul 19, 2023 Jkt 259001 PO 00000 Frm 00007 Fmt 4700 Cost per product Cost on U.S. operators Up to $9,350 per inspection cycle. Up to $411,400 per inspection cycle. Parts cost Sfmt 4700 $0 E:\FR\FM\20JYR1.SGM 20JYR1 46680 Federal Register / Vol. 88, No. 138 / Thursday, July 20, 2023 / Rules and Regulations The FAA estimates the following costs to do any necessary repairs that would be required based on the results of the inspection. The FAA has no way of determining the number of aircraft that might need this repair: ON-CONDITION COSTS Action Labor cost Repair of a cracked stringer ......................................... 13 work-hours × $85 per hour = $1,105 ...................... 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. lotter on DSK11XQN23PROD with RULES1 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: VerDate Sep<11>2014 15:57 Jul 19, 2023 Jkt 259001 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive: ■ 2023–11–11 The Boeing Company: Amendment 39–22457; Docket No. FAA–2023–0432; Project Identifier AD– 2022–01384–T. (a) Effective Date This airworthiness directive (AD) is effective August 24, 2023. (b) Affected ADs None. (c) Applicability This AD applies to all The Boeing Company Model 747–8 and 747–8F series airplanes, certificated in any category. (d) Subject Air Transport Association (ATA) of America Code: 53, Fuselage. (e) Unsafe Condition This AD was prompted by reports of cracks in the stringers, common to the end fittings, forward and aft of the pressure bulkhead at station (STA) 2360 at multiple stringer locations. The FAA is issuing this AD to address an undetected crack in the stringers. The unsafe condition, if not addressed, could result in the inability of a structural element to sustain limit load which could adversely affect the structural integrity of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions Except as specified by paragraph (h) of this AD: At the applicable times specified in the ‘‘Compliance’’ paragraph of Boeing Alert Requirements Bulletin 747–53A2910 RB, dated September 21, 2022, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 747–53A2910 RB, dated September 21, 2022. Note 1 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 747–53A2910, dated September 21, PO 00000 Frm 00008 Fmt 4700 Sfmt 4700 $600 Cost per product $1,705 2022, which is referred to in Boeing Alert Requirements Bulletin 747–53A2910 RB, dated September 21, 2022. PART 39—AIRWORTHINESS DIRECTIVES § 39.13 Parts cost (h) Exceptions to Service Information Specifications (1) Where the Compliance Time columns of the tables in the ‘‘Compliance’’ paragraph of Boeing Alert Requirements Bulletin 747– 53A2910 RB, dated September 21, 2022, use the phrase ‘‘the original issue date of Requirements Bulletin 747–53A2910 RB,’’ this AD requires using ‘‘the effective date of this AD.’’ (2) Where Boeing Alert Requirements Bulletin 747–53A2910 RB, dated September 21, 2022, specifies contacting Boeing for repair instructions: This AD requires doing the repair using a method approved in accordance with the procedures specified in paragraph (i) of this AD. (i) Alternative Methods of Compliance (AMOCs) (1) The Manager, AIR–520 Continued 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 certification office, send it to the attention of the person identified in paragraph (j)(1) of this AD. Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. (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, AIR–520 Continued Operational Safety 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. (j) Related Information (1) For more information about this AD, contact Stefanie Roesli, Aviation Safety Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone: 206–231–3964; email: stefanie.n.roesli@faa.gov. (2) Service information identified in this AD that is not incorporated by reference is available at the addresses specified in paragraphs (k)(3) and (4) of this AD. E:\FR\FM\20JYR1.SGM 20JYR1 Federal Register / Vol. 88, No. 138 / Thursday, July 20, 2023 / Rules and Regulations (k) 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) Boeing Alert Requirements Bulletin 747–53A2910 RB, dated September 21, 2022. (ii) [Reserved] (3) 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; website myboeingfleet.com. (4) You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th Street, 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, fr.inspection@nara.gov, or go to: www.archives.gov/federal-register/cfr/ibrlocations.html. Issued on June 7, 2023. Gaetano A. Sciortino, Acting Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2023–15297 Filed 7–19–23; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 [Docket No. FAA–2023–0673; Airspace Docket No. 23–ANE–03] RIN 2120–AA66 Amendment of Class E Airspace; Greenville, ME This action amends Class E airspace extending upward from 700 feet above the surface for Greenville Municipal Airport, Greenville, ME, as a new instrument approach procedure has been designed for this airport. This action also updates the airport’s existing extension. DATES: Effective 0901 UTC, October 5, 2023. The Director of the Federal Register approves this incorporation by reference action under 1 CFR part 51, subject to the annual revision of FAA lotter on DSK11XQN23PROD with RULES1 VerDate Sep<11>2014 15:57 Jul 19, 2023 Jkt 259001 Authority for This Rulemaking The FAA’s authority to issue rules regarding aviation safety is found in Title 49 of the United States Code. 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. This rulemaking is promulgated under the authority described in Subtitle VII, Part A, Subpart I, Section 40103. Under that section, the FAA is charged with prescribing regulations to assign the use of airspace necessary to ensure the safety of aircraft and the efficient use of airspace. This regulation is within the scope of that authority, as it amends Class E airspace for Greenville Municipal Airport, Greenville, ME, to support IFR operations in the area. History Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: SUMMARY: Order JO 7400.11 and publication of conforming amendments. ADDRESSES: A copy of the Notice of Proposed Rulemaking (NPRM), all comments received, this final rule, and all background material may be viewed online at www.regulations.gov using the FAA Docket number. Electronic retrieval helps, and guidelines are available on the website. It is available 24 hours a day, 365 days a year. FAA Order JO 7400.11G Airspace Designations and Reporting Points and subsequent amendments can be viewed online at www.faa.gov/air_traffic/ publications/. You may also contact the Rules and Regulations Group, Office of Policy, Federal Aviation Administration, 800 Independence Avenue SW, Washington DC 20591; telephone: (202) 267–8783. FOR FURTHER INFORMATION CONTACT: John Fornito, Operations Support Group, Eastern Service Center, Federal Aviation Administration, 1701 Columbia Avenue, College Park, GA 30337; Telephone: (404) 305–6364. SUPPLEMENTARY INFORMATION: The FAA published a notice of proposed rulemaking for Docket No. FAA 2023–0673 in the Federal Register (88 FR 29849; May 9, 2023), proposing to amend Class E airspace at Greenville Municipal Airport, Greenville, ME. Interested parties were invited to participate in this rulemaking effort by submitting written comments on the proposal to the FAA. No comments were received. Incorporation by Reference Class E airspace designations are published in Paragraph 6005 of FAA Order JO 7400.11, Airspace PO 00000 Frm 00009 Fmt 4700 Sfmt 4700 46681 Designations and Reporting Points, incorporated by reference in 14 CFR 71.1 annually. This document amends the current version of that order, FAA Order JO 7400.11G, dated August 19, 2022, and effective September 15, 2022. FAA Order JO 7400.11G is publicly available as listed in the ADDRESSES section of this document. These amendments will be published in the next update to FAA Order JO 7400.11. FAA Order JO 7400.11G lists Class A, B, C, D, and E airspace areas, air traffic service routes, and reporting points. The Rule This action amends 14 CFR part 71 by amending Class E airspace extending upward from 700 feet above the surface for Greenville Municipal Airport, Greenville, ME, to accommodate area navigation (RNAV) global positioning system (GPS) standard instrument approach procedures (SIAPs) serving this airport. This action amends the existing bearing from the airport to 297° (previously 320°), as well as establishing an extension to the south of the airport to accommodate the new approach procedure. This amendment supports a new instrument procedure for this airport. Controlled airspace is necessary for the safety and management of instrument flight rules (IFR) operations in the area. Regulatory Notices and Analyses The FAA has determined that this regulation only involves an established body of technical regulations for which frequent and routine amendments are necessary to keep them operationally current. It, therefore: (1) is not a ‘‘significant regulatory action’’ under Executive Order 12866; (2) is not a ‘‘significant rule’’ under DOT Regulatory Policies and Procedures (44 FR 11034; February 26, 1979); and (3) does not warrant preparation of a regulatory evaluation as the anticipated impact is minimal. Since this is a routine matter that only affects air traffic procedures and air navigation, it is certified that this rule, when promulgated, does not have a significant economic impact on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. Environmental Review The FAA has determined that this action qualifies for categorical exclusion under the National Environmental Policy Act in accordance with FAA Order 1050.1F, ‘‘Environmental Impacts: Policies and Procedures,’’ paragraph 5–6.5a. This airspace action is not expected to cause any potentially significant E:\FR\FM\20JYR1.SGM 20JYR1

Agencies

[Federal Register Volume 88, Number 138 (Thursday, July 20, 2023)]
[Rules and Regulations]
[Pages 46679-46681]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-15297]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2023-0432; Project Identifier AD-2022-01384-T; 
Amendment 39-22457; AD 2023-11-11]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all 
The Boeing Company Model 747-8 and 747-8F series airplanes. This AD was 
prompted by reports of cracks in stringers, common to the end fittings, 
forward and aft of the pressure bulkhead at station (STA) 2360 at 
multiple stringer locations. This AD requires repetitive inspections of 
stringer sidewalls and certain stringer assemblies, common to the end 
fittings, forward and aft of the pressure bulkhead at STA 2360 for any 
crack, and applicable on-condition actions. The FAA is issuing this AD 
to address the unsafe condition on these products.

DATES: This AD is effective August 24, 2023.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of August 24, 
2023.

ADDRESSES: 
    AD Docket: You may examine the AD docket at regulations.gov under 
Docket No. FAA-2023-0432; 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:
     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; telephone 562-797-1717; website myboeingfleet.com.
     You may view this service information at the FAA, 
Airworthiness Products Section, Operational Safety Branch, 2200 South 
216th Street, Des Moines, WA. For information on the availability of 
this material at the FAA, call 206-231-3195. It is also available at 
regulations.gov under Docket No. FAA-2023-0432.

FOR FURTHER INFORMATION CONTACT: Stefanie Roesli, Aviation Safety 
Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone: 
206-231-3964; email: [email protected].

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 747-8 and 747-8F series airplanes. The NPRM published in the 
Federal Register on April 6, 2023 (88 FR 20431). The NPRM was prompted 
by reports of cracks in the stringers, common to the end fittings, 
forward and aft of the pressure bulkhead at STA 2360. An investigation 
found that during airplane assembly, un-shimmed or incorrectly shimmed 
gaps, which were larger than engineering requirements, caused excessive 
and sustained internal tensile stresses and resulted in stress 
corrosion cracking in the stringers. In the NPRM, the FAA proposed to 
require repetitive inspections of stringer sidewalls and certain 
stringer assemblies, common to the end fittings, forward and aft of the 
pressure bulkhead at STA 2360 for any crack, and applicable on-
condition actions. This condition, if not addressed, could result in an 
undetected crack in the stringers, resulting in the inability of a 
structural element to sustain limit load which could adversely affect 
the structural integrity of the airplane.

Discussion of Final Airworthiness Directive

Comments

    The FAA received comments from Boeing and an individual who 
supported the NPRM without change.

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, 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 Boeing Alert Requirements Bulletin 747-53A2910 RB, 
dated September 21, 2022. This service information specifies procedures 
for repetitive low frequency eddy current (LFEC) and high frequency 
eddy current (HFEC) inspections of the stringer sidewalls; repetitive 
detailed inspections of certain stringer assemblies; and applicable on-
condition actions. On-condition actions include repair. 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 section.

Costs of Compliance

    The FAA estimates that this AD affects 44 airplanes of U.S. 
registry. The FAA estimates the following costs to comply with this AD:

                                                                     Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
                Action                          Labor cost           Parts cost             Cost per product                 Cost on U.S. operators
--------------------------------------------------------------------------------------------------------------------------------------------------------
Inspection of stringers...............  Up to 110 work-hours x                 $0  Up to $9,350 per inspection cycle.  Up to $411,400 per inspection
                                         $85 per hour = Up to                                                           cycle.
                                         $9,350 per inspection
                                         cycle.
--------------------------------------------------------------------------------------------------------------------------------------------------------


[[Page 46680]]

    The FAA estimates the following costs to do any necessary repairs 
that would be required based on the results of the inspection. The FAA 
has no way of determining the number of aircraft that might need this 
repair:

                                               On-Condition Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                     Cost per
                    Action                                 Labor cost               Parts cost        product
----------------------------------------------------------------------------------------------------------------
Repair of a cracked stringer..................  13 work-hours x $85 per hour =              $600          $1,705
                                                 $1,105.
----------------------------------------------------------------------------------------------------------------

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:

2023-11-11 The Boeing Company: Amendment 39-22457; Docket No. FAA-
2023-0432; Project Identifier AD-2022-01384-T.

(a) Effective Date

    This airworthiness directive (AD) is effective August 24, 2023.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all The Boeing Company Model 747-8 and 747-8F 
series airplanes, certificated in any category.

(d) Subject

    Air Transport Association (ATA) of America Code: 53, Fuselage.

(e) Unsafe Condition

    This AD was prompted by reports of cracks in the stringers, 
common to the end fittings, forward and aft of the pressure bulkhead 
at station (STA) 2360 at multiple stringer locations. The FAA is 
issuing this AD to address an undetected crack in the stringers. The 
unsafe condition, if not addressed, could result in the inability of 
a structural element to sustain limit load which could adversely 
affect the structural integrity of the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Required Actions

    Except as specified by paragraph (h) of this AD: At the 
applicable times specified in the ``Compliance'' paragraph of Boeing 
Alert Requirements Bulletin 747-53A2910 RB, dated September 21, 
2022, do all applicable actions identified in, and in accordance 
with, the Accomplishment Instructions of Boeing Alert Requirements 
Bulletin 747-53A2910 RB, dated September 21, 2022.

    Note 1 to paragraph (g):  Guidance for accomplishing the actions 
required by this AD can be found in Boeing Alert Service Bulletin 
747-53A2910, dated September 21, 2022, which is referred to in 
Boeing Alert Requirements Bulletin 747-53A2910 RB, dated September 
21, 2022.

(h) Exceptions to Service Information Specifications

    (1) Where the Compliance Time columns of the tables in the 
``Compliance'' paragraph of Boeing Alert Requirements Bulletin 747-
53A2910 RB, dated September 21, 2022, use the phrase ``the original 
issue date of Requirements Bulletin 747-53A2910 RB,'' this AD 
requires using ``the effective date of this AD.''
    (2) Where Boeing Alert Requirements Bulletin 747-53A2910 RB, 
dated September 21, 2022, specifies contacting Boeing for repair 
instructions: This AD requires doing the repair using a method 
approved in accordance with the procedures specified in paragraph 
(i) of this AD.

(i) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, AIR-520 Continued 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 certification office, 
send it to the attention of the person identified in paragraph 
(j)(1) of this AD. Information may be emailed to: [email protected].
    (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, AIR-520 
Continued Operational Safety 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.

(j) Related Information

    (1) For more information about this AD, contact Stefanie Roesli, 
Aviation Safety Engineer, FAA, 2200 South 216th Street, Des Moines, 
WA 98198; phone: 206-231-3964; email: [email protected].
    (2) Service information identified in this AD that is not 
incorporated by reference is available at the addresses specified in 
paragraphs (k)(3) and (4) of this AD.

[[Page 46681]]

(k) 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) Boeing Alert Requirements Bulletin 747-53A2910 RB, dated 
September 21, 2022.
    (ii) [Reserved]
    (3) 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; website myboeingfleet.com.
    (4) You may view this service information at the FAA, 
Airworthiness Products Section, Operational Safety Branch, 2200 
South 216th Street, 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 protected], or go to: www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued on June 7, 2023.
Gaetano A. Sciortino,
Acting Director, Compliance & Airworthiness Division, Aircraft 
Certification Service.
[FR Doc. 2023-15297 Filed 7-19-23; 8:45 am]
BILLING CODE 4910-13-P

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