248 Federal Register / Vol. 89, No. 2 / Wednesday, January 3, 2024 / Rules and Regulations 

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 adding 

the following new airworthiness 

directive: 

2023–25–10 The Boeing Company: 

Amendment 39–22637; Docket No. 

FAA–2023–1648; Project Identifier AD– 

2022–01501–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective February 7, 2024. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

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

certificated in any category, as identified in 

Boeing Service Letter 787–SL–25–025, dated 

September 6, 2022. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 25, Equipment/furnishings. 

(e) Unsafe Condition 

This AD was prompted by a reported 

quality escapement where the seat track 

fitting nuts were under-torqued on some 

flight attendant seats in production. The FAA 

is issuing this AD to address under-torqued 

seat track fitting nuts. The unsafe condition, 

if not addressed, could result in the forwardfacing flight attendant seats breaking free in 

a high load event, causing injury to flight 

attendants, and blocking the exits during 

emergency egress. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Re-torque Seat Track Fitting Nuts 

Within 6 months after the effective date of 

this AD, re-torque each free-standing 

attendant seat track fitting nut in accordance 

with Steps 2., 3., and 4. of ‘‘Suggested 

Operator Action’’ of Boeing Service Letter 

787–SL–25–025, dated September 6, 2022. 

(h) 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 (i) 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. 

(i) Related Information 

For more information about this AD, 

contact Tony Koung, Aviation Safety 

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

Moines, WA 98198; phone: 206–231–3985; 

email: Tony.Koung@faa.gov. 

(j) 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 Service Letter 787–SL–25–025, 

dated September 6, 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 December 14, 2023. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2023–28855 Filed 1–2–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1999; Project 

Identifier MCAI–2023–00697–T; Amendment 

39–22638; AD 2023–25–11] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Defense and Space S.A. (Formerly 

Known as Construcciones 

Aeronauticas, S.A.) Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2021–02– 

18, which applied to all Airbus Defense 

and Space S.A. Model CN–235, CN– 

235–100, CN–235–200, and CN–235– 

300 airplanes and Model C–295 

airplanes. AD 2021–02–18 required 


ddrumheller on DSK120RN23PROD with RULES1
Federal Register / Vol. 89, No. 2 / Wednesday, January 3, 2024 / Rules and Regulations 249 

repetitive inspections for cracking or 

broken rivets of certain left- and righthand stringers and surrounding 

structure, and repair if necessary. This 

AD was prompted by a modification 

that was developed to reinforce the 

structure in the affected area, providing 

terminating action for the repetitive 

inspections required by AD 2021–02– 

18. This AD continues to require certain 

actions in AD 2021–02–18 and requires 

the new terminating action for the 

repetitive inspections, as specified in a 

European Union Aviation Safety Agency 

(EASA) AD, which is incorporated by 

reference. The FAA is issuing this AD 

to address the unsafe condition on these 

products. 

DATES: This AD is effective February 7, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of February 7, 2024. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2023–1999; 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, the mandatory 

continuing airworthiness information 

(MCAI), 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 material incorporated by 

reference in this AD, contact EASA, 

Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 

8999 000; email ADs@easa.europa.eu; 

website easa.europa.eu. You may find 

this material on the EASA website at 

ad.easa.europa.eu. 

• You may view this material at the 

FAA, Airworthiness Products Section, 

Operational Safety Branch, 2200 South 

216th St., Des Moines, WA. For 

information on the availability of this 

material at the FAA, call 206–231–3195. 

It is also available in the AD docket at 

regulations.gov under Docket No. FAA– 

2023–1999. 

FOR FURTHER INFORMATION CONTACT: 

Shahram Daneshmandi, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; 

telephone 516–228–7300; email 9-avsnyaco-cos@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2021–02–18, 

Amendment 39–21401 (86 FR 10740, 

February 23, 2021) (AD 2021–02–18) 

(which corresponds to EASA AD 2020– 

0159). AD 2021–02–18 applied to all 

Airbus Defense and Space S.A. Model 

CN–235, CN–235–100, CN–235–200, 

and CN–235–300 airplanes and Model 

C–295 airplanes. AD 2021–02–18 

required repetitive inspections for 

cracking or broken rivets of certain leftand right-hand stringers and 

surrounding structure, and repair if 

necessary. The FAA issued AD 2021– 

02–18 to address such cracking in the 

stringers, which could result in reduced 

structural integrity of the airplane. FAA 

AD 2021–02–18 explained that the 

requirements were ‘‘interim action,’’ 

and further rulemaking was being 

considered. The FAA has now 

determined that further rulemaking is 

necessary, and this AD follows from that 

determination. 

The NPRM published in the Federal 

Register on October 18, 2023 (88 FR 

71778). The NPRM was prompted by 

AD 2023–0103, dated May 23, 2023, 

issued by EASA, which is the Technical 

Agent for the Member States of the 

European Union (EASA AD 2023–0103) 

(also referred to as the MCAI). The 

MCAI states that since EASA AD 2020– 

0159 was issued, a modification was 

developed to reinforce the structure in 

the affected area, which is a terminating 

action for the repetitive inspections 

required by EASA AD 2020–0159. The 

MCAI does not include Model CN–235– 

100 airplanes since a determination was 

made that the only remaining airplanes 

in service are operated by a government 

military service. The FAA has 

determined that since these models 

remain on the FAA type certificate data 

sheet, AD action is necessary to address 

the unsafe condition. Therefore, this AD 

includes this model in the AD 

applicability and provides corrective 

actions to address the unsafe condition. 

In the NPRM, the FAA proposed to 

continue certain actions in EASA AD 

2020–0159. The NPRM also proposed to 

require the new terminating action for 

the repetitive inspections, as specified 

in EASA AD 2023–0103. The FAA is 

issuing this AD to address the unsafe 

condition on these products. 

You may examine the MCAI in the 

AD docket at regulations.gov under 

Docket No. FAA–2023–1999. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received no comments on 

the NPRM or on the determination of 

the cost to the public. 

Conclusion 

This product has been approved by 

the aviation authority of another 

country and is approved for operation in 

the United States. Pursuant to the FAA’s 

bilateral agreement with this State of 

Design Authority, it has notified the 

FAA of the unsafe condition described 

in the MCAI referenced above. The FAA 

reviewed the relevant data and 

determined that air safety requires 

adopting this AD as proposed. 

Accordingly, the FAA is issuing this AD 

to address the unsafe condition on this 

product. 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 

EASA AD 2023–0103 specifies 

procedures for detailed visual (DET) or 

high frequency eddy current inspections 

of the stringer P0a and P0a’ at the 

riveted line of the attachment to the 

gusset and along the stringer head, in 

particular at the area of the last 

attachment of the gusset to the stringer 

in the midpoint between FR43 and 

FR44, DET inspections for fatigue cracks 

of the fuselage skin, along the stringers’ 

footprint and surrounding structure and 

the attachment of the gusset to the FR43; 

DET inspections for fatigue cracks of the 

actuator bracket on FR43, along the 

radius of the vertical nerves, inner lug 

holes, and attachment holes of the 

bracket to FR43; DET inspections for 

fatigue cracks or broken rivets in the 

web and joint clips to skin and stringer 

of both sides of the frame between 

stringer P1d and P1d’ (two stringers for 

each side from the central stringer P0a); 

DET inspections for fatigue cracks or 

broken rivets of the gussets, along the 

flange which joins FR43; and repair of 

any cracking or broken rivets. 

EASA AD 2023–0103 also specifies 

procedures for modifying structures 

between frames FR43 and FR44, on 

stringers STGR0A and STGR0A’: 

Replacing supports, formers, installing 

fittings, radius guards, and hardware 

attachments. 

This material is reasonably available 

because the interested parties have 

access to it through their normal course 

of business or by the means identified 

in the ADDRESSES section. 


ddrumheller on DSK120RN23PROD with RULES1
250 Federal Register / Vol. 89, No. 2 / Wednesday, January 3, 2024 / Rules and Regulations 

Costs of Compliance 

The FAA estimates that this AD 

affects 10 airplanes of U.S. registry. The 

FAA estimates the following costs to 

comply with this AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per product Cost on U.S. 

operators 

Up to 17 work-hours × $85 per hour = Up to $1,445 ..... Up to $14,002 .................... Up to $15,447 .................... Up to $154,470. 

The FAA has received no definitive 

data on which to base the cost estimates 

for the on-condition actions specified in 

this AD. 

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 

(AD) 2021–02–18, Amendment 39– 

21401 (86 FR 10740, February 23, 2021); 

and 

■ b. Adding the following new AD: 

2023–25–11 Airbus Defense and Space S.A. 

(Formerly Known as Construcciones 

Aeronauticas, S.A.): Amendment 39– 

22638; Docket No. FAA–2023–1999; 

Project Identifier MCAI–2023–00697–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective February 7, 2024. 

(b) Affected ADs 

This AD replaces AD 2021–02–18, 

Amendment 39–21401 (86 FR 10740, 

February 23, 2021) (AD 2021–02–18). 

(c) Applicability 

This AD applies all Airbus Defense and 

Space S.A. Model CN–235, CN–235–100, 

CN–235–200, and CN–235–300 airplanes and 

Model C–295 airplanes, certificated in any 

category. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 53, Fuselage. 

(e) Unsafe Condition 

This AD was prompted by cracks found on 

certain left- and right-hand stringers in the 

area of frame (FR) 43 of the fuselage. The 

FAA is issuing this AD to address such 

cracking in the stringers, which could result 

in reduced structural integrity of the 

airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Requirements 

Except as specified in paragraphs (h) and 

(i) of this AD: Comply with all required 

actions and compliance times specified in, 

and in accordance with, EASA AD 2023– 

0103, dated May 23, 2023 (EASA AD 2023– 

0103). 

(h) Exceptions to EASA AD 2023–0103 

(1) Where EASA AD 2023–0103 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(2) This AD does not adopt the ‘‘Remarks’’ 

section of EASA AD 2023–0103. 

(3) Where EASA AD 2023–0103 specifies 

‘‘The SB: Airbus DS Service Bulletin (SB) 

SB235–53–0070C (for CN–235, CN–235–200 

and CN–235–300 aeroplanes) and SB295–53– 

0025C (for C–295 aeroplanes), as applicable,’’ 

for this AD replace those words with ‘‘The 

SB: Airbus DS Service Bulletin (SB) SB235– 

53–0070C (for CN–235, CN–235–200 and 

CN–235–300 aeroplanes), SB235–53–0070M 

(for CN–235–100 aeroplanes), and SB295– 

53–0025C (for C–295 aeroplanes), as 

applicable.’’ 

(4) Where EASA AD 2023–0103 specifies 

‘‘Groups: Group 1 aeroplanes are CN–235, 

CN–235–200 aeroplanes. Group 2 aeroplanes 

are CN–235–300 and C–295 aeroplanes,’’ for 

this AD replace those words with ‘‘Groups: 

Group 1 aeroplanes are CN–235, CN–235– 

100, and CN–235–200 aeroplanes. Group 2 

aeroplanes are CN–235–300 and C–295 

aeroplanes.’’ 

(5) Where the column header of Table 1 of 

EASA AD 2023–0103 is titled ‘‘Accumulated 

Flight Hours (FH) and Flight Cycles (FC)’’, for 

this AD replace those words with 

‘‘Accumulated Flight Hours (FH) and Flight 

Cycles (FC), as of March 30, 2021 (the 

effective date of AD 2021–02–18).’’ 

(6) Where EASA AD 2023–0103 specifies a 

compliance time of ‘‘During the next 

A-check, or within 300 FH after 30 July 2020 

[the effective date of EASA AD 2020–0159], 

whichever occurs later,’’ for this AD replace 

those words with ‘‘Within 300 FH after 

March 30, 2021 (the effective date of AD 

2021–02–18).’’ 

(7) Where EASA AD 2023–0103 specifies a 

compliance time of ‘‘Within 50 FH or 50 FC, 

whichever occurs first after 30 July 2020 [the 

effective date of EASA AD 2020–0159],’’ for 

this AD replace those words with ‘‘Within 50 

FH or 50 FC, whichever occurs first after 

March 30, 2021 (the effective date of AD 

2021–02–18).’’ 

(8) Where paragraph (2) of EASA AD 2023– 

0103 specifies to ‘‘contact Airbus DS for 

approved instructions and accomplish those 

instructions accordingly’’ if discrepancies are 

detected, for this AD if any cracking is 


ddrumheller on DSK120RN23PROD with RULES1
Federal Register / Vol. 89, No. 2 / Wednesday, January 3, 2024 / Rules and Regulations 251 

detected, the cracking must be repaired 

before further flight using a method approved 

by the Manager, International Validation 

Branch, FAA; or EASA; or Airbus Defense 

and Space S.A.’s EASA Design Organization 

Approval (DOA). If approved by the DOA, 

the approval must include the DOAauthorized signature. 

(i) No Reporting Requirement 

Although the service information 

referenced in EASA AD 2023–0103 specifies 

to submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

(j) Additional AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Validation 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 International Validation Branch, send 

it to the attention of the person identified in 

paragraph (k) of this AD. Information may be 

emailed to: 9-AVS-AIR-730-AMOC@faa.gov. 

(2) Contacting the Manufacturer: For any 

requirement in this AD to obtain instructions 

from a manufacturer, the instructions must 

be accomplished using a method approved 

by the Manager, International Validation 

Branch, FAA; or EASA; or Airbus Defense 

and Space S.A.’s EASA DOA. If approved by 

the DOA, the approval must include the 

DOA-authorized signature. 

(3) Required for Compliance (RC): Except 

as required by paragraph (j)(2) of this AD, if 

any service information referenced in EASA 

AD 2023–0103 contains paragraphs that are 

labeled as RC, the instructions in RC 

paragraphs, including subparagraphs under 

an RC paragraph, must be done to comply 

with this AD; any paragraphs, including 

subparagraphs under those paragraphs, that 

are not identified as RC are recommended. 

The instructions in paragraphs, including 

subparagraphs under those paragraphs, not 

identified as RC may be deviated from using 

accepted methods in accordance with the 

operator’s maintenance or inspection 

program without obtaining approval of an 

AMOC, provided the instructions identified 

as RC can be done and the airplane can be 

put back in an airworthy condition. Any 

substitutions or changes to instructions 

identified as RC require approval of an 

AMOC. 

(k) Additional Information 

For more information about this AD, 

contact Shahram Daneshmandi, Aviation 

Safety Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; telephone 

516–228–7300; email 9-avs-nyaco-cos@

faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 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. 

(i) European Union Aviation Safety Agency 

(EASA) AD 2023–0103, dated May 23, 2023. 

(ii) [Reserved] 

(3) For EASA AD 2023–0103, contact 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 8999 

000; email ADs@easa.europa.eu; website 

easa.europa.eu. You may find this EASA AD 

on the EASA website at ad.easa.europa.eu. 

(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 December 14, 2023. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2023–28846 Filed 1–2–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1892; Project 

Identifier MCAI–2023–00626–E; Amendment 

39–22647; AD 2023–26–04] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

Deutschland Ltd & Co KG Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Rolls-Royce Deutschland Ltd & Co KG 

(RRD) Model Trent 1000–AE3, Trent 

1000–CE3, Trent 1000–D3, Trent 1000– 

G3, Trent 1000–H3, Trent 1000–J3, 

Trent 1000–K3, Trent 1000–L3, Trent 

1000–M3, Trent 1000–N3, Trent 1000– 

P3, Trent 1000–Q3, and Trent 1000–R3 

engines. This AD is prompted by a 

determination that certain intervals for 

visual inspection of the intermediatepressure stage 8 (IP8) and high-pressure 

stage 3 (HP3) air transfer tubes and front 

bearing housing IP8 air feed tubes need 

to be reduced. This AD requires initial 

and repetitive visual inspections of the 

IP8 and HP3 air transfer tubes and front 

bearing housing IP8 air feed tubes for 

cracking, damage, or air leakage wear, 

and replacement, if necessary, as 

specified in a European Union Aviation 

Safety Agency (EASA) AD, which is 

incorporated by reference (IBR). The 

FAA is issuing this AD to address the 

unsafe condition on these products. 

DATES: This AD is effective February 7, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of February 7, 2024. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No.FAA–2023–1892; 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, the mandatory 

continuing airworthiness information 

(MCAI), 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 EASA, KonradAdenauer-Ufer 3, 50668 Cologne, 

Germany; phone: +49 221 8999 000; 

email: ADs@easa.europa.eu; website: 

easa.europa.eu. You may find this 

material on the EASA website at 

ad.easa.europa.eu. 

• You may view this service 

information at the FAA, Airworthiness 

Products Section, Operational Safety 

Branch, 1200 District Avenue, 

Burlington, MA 01803. For information 

on the availability of this material at the 

FAA, call (817) 222–5110. It is also 

available at regulations.gov under 

Docket No. FAA–2023–1892. 

FOR FURTHER INFORMATION CONTACT: 

Sungmo Cho, Aviation Safety Engineer, 

FAA, 2200 South 216th Street, Des 

Moines, WA 98198; phone: (781) 238– 

7241; email: sungmo.d.cho@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 RRD Model Trent 1000– 

AE3, Trent 1000–CE3, Trent 1000–D3, 

Trent 1000–G3, Trent 1000–H3, Trent 

1000–J3, Trent 1000–K3, Trent 1000–L3, 

Trent 1000–M3, Trent 1000–N3, Trent 

1000–P3, Trent 1000–Q3, and Trent 

1000–R3 engines. The NPRM published 

in the Federal Register on September 

29, 2023 (88 FR 67121). The NPRM was 

prompted by EASA AD 2023–0087, 

dated April 26, 2023 (EASA AD 2023– 


ddrumheller on DSK120RN23PROD with RULES1