Federal Register / Vol. 89, No. 22 / Thursday, February 1, 2024 / Rules and Regulations 6425 

Bulletin B787–81205–SB250290–00, Issue 

001, dated November 1, 2022. 

(h) Exceptions to Service Information 

Specifications 

Where the Compliance Time column of the 

table in the ‘‘Compliance’’ paragraph of 

Boeing Alert Requirements Bulletin B787– 

81205–SB250290–00 RB, Issue 001, dated 

November 1, 2022, uses the phrase ‘‘the Issue 

001 date of the Requirements Bulletin B787– 

81205–SB250290–00 RB,’’ this AD requires 

using ‘‘the effective date 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) 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 

For more information about this AD, 

contact Courtney Tuck, Aviation Safety 

Engineer, FAA, 2200 South 216th St., Des 

Moines, WA 98198; telephone 206–231– 

3986; email Courtney.K.Tuck@faa.gov. 

(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 

B787–81205–SB250290–00 RB, Issue 001, 

dated November 1, 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 

St., Des Moines, WA. For information on the 

availability of this material at the FAA, call 

206–231–3195. 

(5) You may view this material at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

visit www.archives.gov/federal-register/cfr/ 

ibr-locations or email fr.inspection@nara.gov. 

Issued on January 3, 2024. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2024–01967 Filed 1–31–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1037; Project 

Identifier AD–2023–00511–T; Amendment 

39–22655; AD 2024–01–04] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2020–26– 

08, which applied to The Boeing 

Company Model 787–8, 787–9, and 

787–10 airplanes powered by RollsRoyce Trent 1000 engines. AD 2020–26– 

08 required repetitive inspections of the 

inner fixed structure (IFS) forward 

upper fire seal and thermal insulation 

blankets in the forward upper area of 

the thrust reverser (TR) for damage and 

applicable on-condition actions. Since 

the FAA issued AD 2020–26–08, the 

FAA determined that a new upper 

splitter fairing assembly is needed to 

prevent damage to the fire seal and 

thermal insulation blanket. This AD 

continues to require the actions 

specified in AD 2020–26–08 and 

requires determining if an affected part 

number of the upper splitter fairing 

assembly is installed on the engine, 

replacing an affected upper splitter 

fairing assembly part number with a 

new upper splitter fairing assembly part 

number, inspecting the IFS forward 

upper fire seal and thermal insulation 

blanket for any damage, and applicable 

on-condition actions. This AD also 

prohibits the installation of affected 

parts. The FAA is issuing this AD to 

address the unsafe condition on these 

products. 

DATES: This AD is effective March 7, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of March 7, 2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain other publication listed in 

this AD as of January 27, 2021 (85 FR 

83755, December 23, 2020). 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2023–1037; 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 Boulevard, 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– 

2023–1037. 

FOR FURTHER INFORMATION CONTACT: Tak 

Kobayashi, Aviation Safety Engineer, 

FAA, 2200 South 216th Street, Des 

Moines, WA 98198; telephone 206–231– 

3553; email takahisa.kobayashi@

faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2020–26–08, 

Amendment 39–21363 (85 FR 83755, 

December 23, 2020) (AD 2020–26–08). 

AD 2020–26–08 applied to The Boeing 

Company Model 787–8, 787–9, and 

787–10 airplanes powered by RollsRoyce Trent 1000 engines. AD 2020–26– 

08 required repetitive inspections of the 

IFS forward upper fire seal and thermal 

insulation blankets in the forward upper 

area of the TR for damage and 

applicable on-condition actions. 

The NPRM published in the Federal 

Register on May 25, 2023 (88 FR 33851). 

The NPRM was prompted by a 


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6426 Federal Register / Vol. 89, No. 22 / Thursday, February 1, 2024 / Rules and Regulations 

determination that a new upper splitter 

fairing assembly part number (P/N) 

KH99185 should be required to prevent 

damage to the fire seal and thermal 

insulation blanket. In the NPRM, the 

FAA proposed to continue to require the 

actions specified in AD 2020–26–08 and 

require determining if upper splitter 

fairing assembly P/N KH60375 is 

installed on the engine, replacing upper 

splitter fairing assembly P/N KH60375 

with a new upper splitter fairing 

assembly part number, inspecting the 

IFS forward upper fire seal and thermal 

insulation blanket for any damage, and 

applicable on-condition actions. 

The FAA issued a supplemental 

NPRM (SNPRM) to amend 14 CFR part 

39 to supersede AD 2020–26–08. The 

SNPRM published in the Federal 

Register on October 31, 2023 (88 FR 

74372). The SNPRM was prompted by 

the FAA identifying an additional 

affected upper splitter fairing assembly, 

P/N KH11560, that must be replaced to 

address the unsafe condition. In the 

SNPRM, the FAA revised the NPRM by 

proposing replacement of the additional 

upper splitter fairing assembly. The 

FAA is issuing this AD to address the 

damage to the IFS forward upper fire 

seal and the thermal insulation blankets 

of the TR due to airflow through 

structural gapping that could occur at 

the interface between the leading edge 

of the IFS and the engine splitter 

structure during flight. Failure of the 

IFS forward upper fire seal could cause 

the loss of seal pressurization and 

degrade the ability to detect and 

extinguish an engine fire, resulting in an 

uncontrolled fire. Damage to the TR 

insulation blanket could result in 

thermal damage to the TR inner wall, 

the subsequent release of engine exhaust 

components, and consequent damage to 

critical areas of the airplane. 

Furthermore, damage to the TR inner 

wall and IFS forward upper fire seal 

could compromise the integrity of the 

firewall and its ability to contain an 

engine fire, resulting in an uncontrolled 

fire. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received comments from 

The Air Line Pilots Association, 

International and The Boeing Company, 

who both supported the SNPRM 

without change. 

Conclusion 

The FAA reviewed the relevant data, 

considered the comments received, and 

determined that air safety requires 

adopting this AD as proposed. 

Accordingly, the FAA is issuing this AD 

to address the unsafe condition on these 

products. This AD is adopted as 

proposed in the SNPRM. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed Boeing Alert 

Requirements Bulletin B787–81205– 

SB720007–00 RB, Issue 001, dated 

December 12, 2022. This service 

information specifies replacing the 

upper splitter fairing assembly with a 

new upper splitter fairing assembly with 

ramp fairing incorporated and doing a 

general visual inspection of the IFS 

forward upper fire seal and thermal 

insulation blanket of the left and right 

TR halves for any damage. This service 

information also specifies applicable oncondition actions, including replacing 

the IFS forward upper fire seal and 

thermal insulation blanket of each TR 

half if damage is found. The procedures 

in the service information apply to each 

affected engine. 

The FAA also reviewed Boeing Alert 

Requirements Bulletin B787–81205– 

SB780041–00 RB, Issue 002, dated 

December 21, 2021. This service 

information contains procedures for 

repetitive inspections of the IFS forward 

upper fire seal and thermal insulation 

blanket of the left and right TR halves 

for any damage. This service 

information also specifies applicable oncondition actions, including replacing 

the IFS forward upper fire seal and 

thermal insulation blanket of each TR 

half if damage is found. The procedures 

in the service information apply to each 

affected engine. 

This AD also requires Boeing Alert 

Requirements Bulletin B787–81205– 

SB780041–00 RB, Issue 001, dated 

March 31, 2020, which the Director of 

the Federal Register approved for 

incorporation by reference as of January 

27, 2021 (85 FR 83755, December 23, 

2020). 

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 13 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 (retained actions from AD 

2020–26–08).

2 work-hours × $85 per hour = $170 per 

inspection cycle.

$0 $170 per inspection 

cycle.

$2,210 per inspection cycle. 

Inspection or records review (new action) 1 work-hour × $85 per hour = $85 ............ 0 $85 ......................... $1,105. 

Replacement of each upper splitter fairing 

assembly (new action).

71 work-hours × $85 per hour = $6,035 .... 230,000 $236,035 ................ $3,068,455. 

Inspection (new action) .............................. 2 work-hours × $85 per hour = $170 ......... 0 $170 ....................... $2,210. 

The FAA estimates the following 

costs to do any necessary replacements 

that would be required based on the 

results of the inspection. The agency has 

no way of determining the number of 

aircraft that might need these 

replacements: 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per product 

Fire seal replacement ...................... 2 work-hours × $85 per hour = $170 per TR half ....... $1,383 per TR half. $1,553 per TR half (4 TR 

halves per airplane). 

Thermal insulation blanket replacement.1 work-hour × $85 per hour = $85 per TR half ........... $18,214 per TR half $18,299 per TR half. 


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Federal Register / Vol. 89, No. 22 / Thursday, February 1, 2024 / Rules and Regulations 6427 

According to the manufacturer, some 

of the costs of this AD may be covered 

under warranty by Goodrich, thereby 

reducing the cost impact on affected 

operators. The FAA does not control 

warranty coverage for affected operators. 

As a result, the FAA has included all 

known costs in the cost estimate. 

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 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by: 

■ a. Removing Airworthiness Directive 

2020–26–08, Amendment 39–21363 (85 

FR 83755, December 23, 2020); and 

■ b. Adding the following new 

Airworthiness Directive: 

2024–01–04 The Boeing Company: 

Amendment 39–22655; Docket No. 

FAA–2023–1037; Project Identifier AD– 

2023–00511–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective March 7, 2024. 

(b) Affected ADs 

This AD replaces AD 2020–26–08, 

Amendment 39–21363 (85 FR 83755, 

December 23, 2020) (AD 2020–26–08). 

(c) Applicability 

This AD applies to The Boeing Company 

Model 787–8, 787–9, and 787–10 airplanes, 

certificated in any category, with Rolls-Royce 

Trent 1000 engines installed. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 72, Turbine/turboprop engine. 

(e) Unsafe Condition 

This AD was prompted by reports of RollsRoyce Trent 1000 powered airplanes having 

damage to the thrust reverser inner fixed 

structure (IFS) forward upper fire seal and 

damage to thermal insulation blankets in the 

forward upper area of the thrust reverser 

(TR). The FAA is issuing this AD to address 

the damage to the IFS forward upper fire seal 

and the thermal insulation blankets of the TR 

due to airflow through structural gapping 

that could occur at the interface between the 

leading edge of the IFS and the engine 

splitter structure during flight. Failure of the 

IFS forward upper fire seal could cause the 

loss of seal pressurization and degrade the 

ability to detect and extinguish an engine 

fire, resulting in an uncontrolled fire. Damage 

to the TR insulation blanket could result in 

thermal damage to the TR inner wall, the 

subsequent release of engine exhaust 

components, and consequent damage to 

critical areas of the airplane. Furthermore, 

damage to the TR inner wall and IFS forward 

upper fire seal could compromise the 

integrity of the firewall and its ability to 

contain an engine fire, resulting in an 

uncontrolled fire. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Retained Actions, With Additional 

Service Information, Revised Affected 

Airplanes, and New Terminating Action 

This paragraph restates the requirements of 

paragraph (g) of AD 2020–26–08, with 

additional service information, revised 

affected airplanes, and new terminating 

action. For airplanes with an original 

airworthiness certificate or original export 

certificate of airworthiness issued on or 

before the effective date of this AD and for 

airplanes listed in the ‘‘Effectivity’’ section of 

Boeing Alert Requirements Bulletin B787– 

81205–SB720007–00 RB, Issue 001, dated 

December 12, 2022: Except as specified by 

paragraph (h) of this AD, at the applicable 

times specified in the ‘‘Compliance’’ 

paragraph of Boeing Alert Requirements 

Bulletin B787–81205–SB780041–00 RB, Issue 

001, dated March 31, 2020, or Boeing Alert 

Requirements Bulletin B787–81205– 

SB780041–00 RB, Issue 002, dated December 

21, 2021, do all applicable actions identified 

in, and in accordance with, the 

Accomplishment Instructions of Boeing Alert 

Requirements Bulletin B787–81205– 

SB780041–00 RB, Issue 001, dated March 31, 

2020, or Boeing Alert Requirements Bulletin 

B787–81205–SB780041–00 RB, Issue 002, 

dated December 21, 2021. Accomplishing the 

actions required by paragraph (i)(2) of this 

AD terminates the actions required by this 

paragraph. 

Note 1 to paragraph (g): Guidance for 

accomplishing the actions required by 

paragraph (g) of this AD can be found in 

Boeing Alert Service Bulletin B787–81205– 

SB780041–00, Issue 001, dated March 31, 

2020, which is referred to in Boeing Alert 

Requirements Bulletin B787–81205– 

SB780041–00 RB, Issue 001, dated March 31, 

2020; or in Boeing Alert Service Bulletin 

B787–81205–SB780041–00, Issue 002, dated 

December 21, 2021, which is referred to in 

Boeing Alert Requirements Bulletin B787– 

81205–SB780041–00 RB, Issue 002, dated 

December 21, 2021. 

(h) Retained Exceptions to Service 

Information Specifications for Paragraph (g) 

of This AD, With Additional Service 

Information 

This paragraph restates the exceptions 

specified in paragraph (h) of AD 2020–26–08, 

with additional service information. Where 

Boeing Alert Requirements Bulletin B787– 

81205–SB780041–00 RB, Issue 001, dated 

March 31, 2020, or Boeing Alert 

Requirements Bulletin B787–81205– 

SB780041–00 RB, Issue 002, dated December 

21, 2021, uses the phrase ‘‘the Issue 001 date 

of Requirements Bulletin B787–81205– 

SB780041–00 RB,’’ this AD requires using 

January 27, 2021, (the effective date of AD 

2020–26–08). 

(i) New Required Actions 

(1) For airplanes with original 

airworthiness certificate or original export 

certificate of airworthiness issued on or 

before the effective date of this AD and for 

airplanes listed in the ‘‘Effectivity’’ section of 

Boeing Alert Requirements Bulletin B787– 

81205–SB720007–00 RB, Issue 001, dated 

December 12, 2022: Within 7 years after the 

effective date of this AD, or within 7 years 


ddrumheller on DSK120RN23PROD with RULES1
6428 Federal Register / Vol. 89, No. 22 / Thursday, February 1, 2024 / Rules and Regulations 

after the date of issuance of the original 

airworthiness certificate or original export 

certificate of airworthiness, whichever occurs 

later, inspect the airplane to determine the 

part number of the upper splitter fairing 

assembly installed on each engine. A review 

of airplane maintenance records is acceptable 

in lieu of this inspection if the part number 

of the upper splitter fairing assembly can be 

conclusively determined from that review. 

For engines on which no upper splitter 

fairing assembly part number (P/N) KH60375 

or P/N KH11560 is installed, the actions 

required by paragraph (g) of this AD are no 

longer required for that engine. 

(2) If, during any inspection or records 

review required by paragraph (i)(1) of this 

AD, an upper splitter fairing assembly P/N 

KH60375 or P/N KH11560 is found on any 

engine of an airplane: Except as specified by 

paragraph (j) of this AD, at the applicable 

times specified in the ‘‘Compliance’’ 

paragraph of Boeing Alert Requirements 

Bulletin B787–81205–SB720007–00 RB, Issue 

001, dated December 12, 2022, do all 

applicable actions identified in, and in 

accordance with, the Accomplishment 

Instructions of Boeing Alert Requirements 

Bulletin B787–81205–SB720007–00 RB, Issue 

001, dated December 12, 2022, for each 

affected engine. Accomplishing the actions 

required by this paragraph on all affected 

engines of an airplane terminates the actions 

required by paragraph (g) of this AD for that 

airplane. 

Note 2 to paragraph (i)(2): Guidance for 

accomplishing the actions required by 

paragraph (i)(2) of this AD can be found in 

Boeing Alert Service Bulletin B787–81205– 

SB720007–00, Issue 001, dated December 12, 

2022, which is referred to in Boeing Alert 

Requirements Bulletin B787–81205– 

SB720007–00 RB, Issue 001, dated December 

12, 2022. 

(j) Exceptions to Service Information 

Specifications for Paragraph (i)(2) of This 

AD 

(1) Where the Compliance Time column of 

table 5 in the ‘‘Compliance’’ paragraph of 

Boeing Alert Requirements Bulletin B787– 

81205–SB720007–00 RB, Issue 001, dated 

December 12, 2022, uses the phrase ‘‘the 

Issue 001 date of Requirements Bulletin 

B787–81205–SB720007–00 RB,’’ this AD 

requires using ‘‘the effective date of this AD.’’ 

(2) Where the service information 

referenced in Boeing Alert Requirements 

Bulletin B787–81205–SB720007–00 RB, Issue 

001, dated December 12, 2022, specifies to 

remove the existing upper splitter fairing 

assembly P/N KH60375, this AD requires 

removing the existing upper splitter fairing 

assembly P/N KH60375 or P/N KH11560. 

(k) Parts Installation Prohibition 

(1) For airplanes with an original 

airworthiness certificate or original export 

certificate of airworthiness issued after the 

effective date of this AD, except for airplanes 

listed in Boeing Alert Requirements Bulletin 

B787–81205–SB720007–00 RB, Issue 001, 

dated December 12, 2022: As of the effective 

date of this AD, no person may install an 

engine with an upper splitter fairing 

assembly P/N KH60375 or P/N KH11560 on 

any airplane. 

(2) For airplanes with original 

airworthiness certificate or original export 

certificate of airworthiness issued on or 

before the effective date of this AD and for 

airplanes listed in Boeing Alert Requirements 

Bulletin B787–81205–SB720007–00 RB, Issue 

001, dated December 12, 2022, on which, 

during the actions required by paragraph 

(i)(1) of this AD, no upper splitter fairing 

assembly P/N KH60375 or P/N KH11560 was 

installed on both engines: After 

accomplishing the inspection or records 

review required by paragraph (i)(1) of this 

AD, no person may install an engine with an 

upper splitter fairing assembly P/N KH60375 

or P/N KH11560 for replacement of an engine 

on those airplanes. 

(l) 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 AIR–520, Continued 

Operational Safety Branch, send it to the 

attention of the person identified in 

paragraph (m) of this AD. Information may be 

emailed to 9-ANM-Seattle-ACO-AMOCRequests@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, 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 Tak Kobayashi, Aviation Safety 

Engineer, FAA, 2200 South 216th Street, Des 

Moines, WA 98198; telephone 206–231– 

3553; email takahisa.kobayashi@faa.gov. 

(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 this AD specifies otherwise. 

(3) The following service information was 

approved for IBR on March 7, 2024. 

(i) Boeing Alert Requirements Bulletin 

B787–81205–SB720007–00 RB, Issue 001, 

dated December 12, 2022. 

(ii) Boeing Alert Requirements Bulletin 

B787–81205–SB780041–00 RB, Issue 002, 

dated December 21, 2021. 

(4) The following service information was 

approved for IBR on January 27, 2021 (85 FR 

83755, December 23, 2020). 

(i) Boeing Alert Requirements Bulletin 

B787–81205–SB780041–00 RB, Issue 001, 

dated March 31, 2020. 

(ii) [Reserved] 

(5) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Contractual & Data 

Services (C&DS), 2600 Westminster 

Boulevard, MC 110–SK57, Seal Beach, CA 

90740–5600; telephone 562–797–1717; 

website myboeingfleet.com. 

(6) 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. 

(7) You may view this material at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

visit www.archives.gov/federal-register/cfr/ 

ibr-locations or email fr.inspection@nara.gov. 

Issued on January 6, 2024. 

Caitlin Locke, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2024–01969 Filed 1–31–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2023–2118; Airspace 

Docket No. 23–AGL–31] 

RIN 2120–AA66 

Amendment of Class E Airspace; 

Harrison, OH 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This action amends the Class 

E airspace at Harrison, OH. This action 

is the result of an airspace review 

conducted due to the decommissioning 

of the Cincinnati very high frequency 

omnidirectional range (VOR) as part of 

the VOR Minimum Operating Network 

(MON) Program. The geographic 

coordinates of the airport are also being 

updated to coincide with the FAA’s 

aeronautical database. This action 

brings the airspace into compliance 

with FAA orders to support instrument 

flight rule (IFR) operations. 

DATES: Effective 0901 UTC, May 16, 

2024. The Director of the Federal 

Register approves this incorporation by 

reference action under 1 CFR part 51, 

subject to the annual revision of FAA 

Order JO 7400.11 and publication of 

conforming amendments. 


ddrumheller on DSK120RN23PROD with RULES1