Federal Register / Vol. 87, No. 110 / Wednesday, June 8, 2022 / Rules and Regulations 34767 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to British Aerospace 

(Operations) Limited Model Jetstream Model 

3101 airplanes and British Aerospace 

Regional Aircraft Model Jetstream Model 

3201 airplanes, all serial numbers, 

certificated in any category. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 2720, Rudder Control System; and 

2730, Elevator Control System. 

(e) Unsafe Condition 

This AD was prompted by mandatory 

continuing airworthiness information (MCAI) 

originated by an aviation authority of another 

country to identify and correct an unsafe 

condition on an aviation product. The MCAI 

identifies the unsafe condition as stress 

corrosion cracking of the primary flight 

control cable terminal. The FAA is issuing 

this AD to detect and correct corrosion, 

pitting, or cracking in the primary flight 

control cable terminals. The unsafe 

condition, if not addressed, could result in 

failure of the primary flight control cable 

terminal and loss of airplane control. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) Before any primary rudder or primary 

elevator flight control circuit cable 

accumulates 16 years since first installation 

on an airplane or within 12 months after the 

effective date of this AD, whichever occurs 

later, and thereafter at intervals not to exceed 

24 months, inspect all threaded turnbuckle 

type control cable terminals for signs of 

corrosion, pitting, and cracking by following 

paragraph (2) in Section 2.B. Part 1 and 

Section 2.B. Part 2 of the Accomplishment 

Instructions in British Aerospace Jetstream 

Series 3100 & 3200 Service Bulletin 27– 

JA181040, Original Issue, dated January 17, 

2019 (SB 27–JA181040). If the age of any 

primary rudder or primary elevator flight 

control circuit cable is unknown, do the 

inspection within 12 months after the 

effective date of this AD and thereafter at 

intervals not to exceed 24 months. 

(2) If, during any inspection required by 

paragraph (g)(1) of this AD, there is pitting 

or cracking or corrosion that exceeds 

minimum damage limits, before further 

flight, replace the affected cable assembly 

with a new (zero hours time-in-service) cable 

assembly. 

(3) Replacing a cable assembly does not 

terminate the inspections required by this 

AD. After replacing a cable assembly, do the 

inspection in paragraph (g)(1) of this AD 

before the cable assembly accumulates 15 

years since first installation on an airplane 

and thereafter at intervals not to exceed 24 

months. 

(h) Alternative Methods of Compliance 

(AMOCs) 

(1) 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 local 

Flight Standards District 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)(1) of this AD and 

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

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/ 

certificate holding district office. 

(i) Related Information 

(1) For more information about this AD, 

contact Doug Rudolph, Aviation Safety 

Engineer, General Aviation & Rotorcraft 

Section, International Validation Branch, 

FAA, 901 Locust, Room 301, Kansas City, 

MO 64106; phone: (816) 329–4059; email: 

doug.rudolph@faa.gov. 

(2) Refer to Civil Aviation Authority (CAA) 

AD G–2021–0017, dated December 21, 2021, 

for related information. You may examine the 

CAA AD in the AD docket at https://

www.regulations.gov by searching for and 

locating Docket No. FAA–2022–0285. 

(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) British Aerospace Jetstream Series 3100 

& 3200 Service Bulletin 27–JA181040, 

Original Issue, dated January 17, 2019. 

(ii) [Reserved] 

(3) For service information identified in 

this AD, contact BAE Systems (Operations) 

Ltd., Customer Information Department, 

Prestwick International Airport, Ayrshire, 

KA9 2RW, Scotland, United Kingdom; 

phone: +44 3300 488727; fax: +44 1292 

675704; email: RApublications@

baesystems.com; website: https://

www.baesystems.com/businesses/regional

aircraft/. 

(4) You may view this service information 

at the FAA, Airworthiness Products Section, 

Operational Safety Branch, 901 Locust, 

Kansas City, MO 64106. For information on 

the availability of this material at the FAA, 

call (817) 222–5110. 

(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: fr.inspection@nara.gov, or go to: 

https://www.archives.gov/federal-register/cfr/ 

ibr-locations.html. 

Issued on May 24, 2022. 

Ross Landes, 

Deputy Director for Regulatory Operations, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2022–12182 Filed 6–7–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0150; Project 

Identifier MCAI–2021–00839–E; Amendment 

39–22065; AD 2022–11–15] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

Deutschland Ltd & Co KG (Type 

Certificate Previously Held by RollsRoyce plc) Turbofan 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) Trent 7000–72 and Trent 7000– 

72C model turbofan engines. This AD 

was prompted by in-service experience 

showing that certain high-pressure 

turbine (HPT) blades may prematurely 

deteriorate to an unacceptable condition 

when managed in accordance with the 

inspection intervals in the Time Limits 

Manual (TLM). This AD requires initial 

and repetitive on-wing borescope 

inspections (BSIs) of the HPT blades to 

detect axial cracking and, depending on 

the results of the inspections, 

replacement of the HPT blade set, 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 July 13, 

2022. 

The Director of the Federal Register 

approved the IBR of a certain 

publication listed in this AD as of July 

13, 2022. 

ADDRESSES: For material incorporated 

by reference in this AD, contact EASA, 

Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; phone: +49 221 8999 

000; email: ADs@easa.europa.eu. You 

may find this material on the EASA 

website at https://ad.easa.europa.eu. 

You may view this material at the FAA, 

Airworthiness Products Section, 

Operational Safety Branch, 1200 District 

Avenue, Burlington, MA 01803. For 

information on the availability of this 


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34768 Federal Register / Vol. 87, No. 110 / Wednesday, June 8, 2022 / Rules and Regulations 

material at the FAA, call (817) 222– 

5110. It is also available at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2022– 

0150. For Rolls-Royce service 

information identified in this AD, 

contact Rolls-Royce plc, Corporate 

Communications, P.O. Box 31, Derby, 

DE24 8BJ, United Kingdom; phone: +44 

(0)1332 242424; fax: +44 (0)1332 

249936; website: https://www.rollsroyce.com/contact-us.aspx. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0150; 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 EASA AD, 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 W121–40, 1200 

New Jersey Avenue SE, Washington, DC 

20590. 

FOR FURTHER INFORMATION CONTACT: 

Nicholas Paine, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 

District Avenue, Burlington, MA 01803; 

phone: (781) 238–7116; email: 

nicholas.j.paine@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2021–0169, 

dated July 19, 2021 (EASA AD 2021– 

0169), to address an unsafe condition 

for all RRD Trent 7000–72 and Trent 

7000–72C model turbofan engines. 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to RRD Trent 7000–72 and Trent 

7000–72C model turbofan engines. The 

NPRM published in the Federal 

Register on March 1, 2022 (87 FR 

11355). The NPRM was prompted by inservice experience showing that certain 

HPT blades may prematurely deteriorate 

to an unacceptable condition when 

managed in accordance with the 

inspection intervals in the TLM. The 

manufacturer published Rolls-Royce 

(RR) Alert Non-Modification Service 

Bulletin (NMSB) Trent 1000 72–AK449, 

Revision 2, dated July 5, 2021 (the Alert 

NMSB) specifying procedures for 

performing initial and repetitive onwing BSIs of the HPT blades to detect 

axial cracking. The Alert NMSB also 

specifies procedures for removing the 

engine from service to replace the HPT 

blade set before exceeding a specified 

number of flight cycles. The compliance 

time for the initial and repetitive BSIs 

of the HPT blades required by this AD 

meet the TLM inspection intervals for 

HPT blade, part number KH64485. In 

the NPRM, the FAA proposed to require 

accomplishing the actions specified in 

EASA AD 2021–0169, described 

previously, as incorporated by 

reference, except for any differences 

identified as exceptions in the 

regulatory text of this AD. The FAA is 

issuing this AD to address the unsafe 

condition on these products. See EASA 

AD 2021–0169 for additional 

background information. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received comments from 

three commenters. The commenters 

were Air Line Pilots Association, 

International (ALPA), Delta Air Lines, 

Inc. (DAL), and an individual 

commenter. The following presents the 

comments received on the NPRM and 

the FAA’s response to each comment. 

Request to Add AD Reference to 

Paragraph (b) 

DAL requested that the FAA add a 

reference to AD 2021–25–03, 

Amendment 39–21846 (86 FR 71135, 

December 15, 2021), (AD 2021–25–03), 

to paragraph (b), Affected ADs. DAL 

commented that AD 2021–25–03 

requires the operator’s maintenance 

program be updated to incorporate 

Revision 7 of the RR TLM. DAL noted 

that Revision 7 of the RR TLM, Chapter 

05–20, defines the interval for the piecepart inspection of the HPT blade. DAL 

also commented that Note 2 in 

paragraph (5) of EASA AD 2021–0169 

specifically states that the life limitation 

cancelled the inspection intervals 

currently defined in the TLM. DAL 

stated that this AD would partially 

supersede the requirements of AD 2021– 

25–03. 

The FAA disagrees with adding 

reference to AD 2021–25–03 in 

paragraph (b) of this AD. Paragraph (b) 

of this AD identifies superseded or 

revised ADs, or other ADs if the 

requirements of those ADs are affected. 

The compliance times for the initial and 

repetitive on-wing BSIs of the HPT 

blades required by this AD are more 

restrictive than the inspection intervals 

specified in the TLM. This AD does not 

affect the requirements of AD 2021–25– 

03 and, as a result, AD 2021–25–03 is 

not an affected AD. The FAA did not 

change this AD as a result of this 

comment. 

Request to Update Joint Aircraft 

Service Component (JASC) Code 

DAL requested the FAA update 

paragraph (d), Subject, of this AD from 

JASC Code 7230 to JASC Code 7250. 

DAL commented that the required 

inspections and unsafe condition for the 

HPT fall under JASC Code 7250, not 

JASC Code 7230 as proposed in the 

NPRM. 

The FAA agrees and has updated 

paragraph (d) of this AD. 

Support for the AD 

ALPA and an individual commenter 

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, and any other changes 

described previously, this AD is 

adopted as proposed in the NPRM. 

None of the changes will increase the 

economic burden on any operator. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed EASA AD 2021– 

0169. EASA AD 2021–0169 specifies 

instructions for performing initial and 

repetitive on-wing BSIs of the HPT 

blades to detect axial cracking and, 

depending on the results of the 

inspections, removal from service of the 

engine for in-shop replacement of the 

HPT blade set. EASA AD 2021–0169 

also specifies instructions for replacing 

HPT blades with a new HPT blade set 

before exceeding a specified number of 

flight cycles. 

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 ADDRESSES. 

Other Related Service Information 

The FAA reviewed RR Alert NMSB 

Trent 1000 72–AK449, Revision 2, dated 

July 5, 2021. This Alert NMSB describes 

procedures for performing initial and 

repetitive on-wing BSIs of the HPT 

blades to detect axial cracking. This 

Alert NMSB also specifies procedures 

for removing the engine to replace the 

HPT blade set before exceeding a 

specified number of flight cycles. 

Interim Action 

The FAA considers this AD to be an 

interim action. If final action is later 

identified, the FAA might consider 

additional rulemaking. 


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Federal Register / Vol. 87, No. 110 / Wednesday, June 8, 2022 / Rules and Regulations 34769 

Costs of Compliance 

The FAA estimates that this AD 

affects 16 engines installed on 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 

BSI HPT Blades .............................................. 4 work-hours × $85 per hour = $340 ............. $0 $340 $5,440 

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 this 

replacement: 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per 

product 

Replace HPT Blade Set ............................................... 16 work-hours × $85 per hour = $1,360 ...................... $2,001,780 $2,003,140 

The FAA has included all known 

costs in its cost estimate. According to 

the manufacturer, however, some of the 

costs of this AD may be covered under 

warranty, thereby reducing the cost 

impact on affected operators. 

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 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: 

2022–11–15 Rolls-Royce Deutschland Ltd & 

Co KG (Type Certificate previously held 

by Rolls-Royce plc): Amendment 39– 

22065; Docket No. FAA–2022–0150; 

Project Identifier MCAI–2021–00839–E. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective July 13, 2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Rolls-Royce 

Deutschland Ltd & Co KG (Type Certificate 

previously held by Rolls-Royce plc) Trent 

7000–72 and Trent 7000–72C model turbofan 

engines. 

(d) Subject 

Joint Aircraft Service Component (JASC) 

Code 7250, Turbine Section. 

(e) Unsafe Condition 

This AD was prompted by in-service 

experience showing that certain highpressure turbine (HPT) blades may 

prematurely deteriorate to an unacceptable 

condition when managed in accordance with 

the inspection intervals defined in the Time 

Limits Manual. The FAA is issuing this AD 

to prevent failure of the HPT blades. The 

unsafe condition, if not addressed, could 

result in failure of the engine, in-flight 

shutdown, and loss of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

Except as specified in paragraph (h) of this 

AD: Perform all required actions within the 

compliance times specified in, and in 

accordance with, European Union Aviation 

Safety Agency AD 2021–0169, dated July 19, 

2021 (EASA AD 2021–0169). 

(h) Exceptions to EASA AD 2021–0169 

(1) Where EASA AD 2021–0169 requires 

compliance from its effective date, this AD 

requires using the effective date of this AD. 

(2) This AD does not require compliance 

with the ‘‘Remarks’’ section of EASA AD 

2021–0169. 

(i) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, ECO Branch, FAA, has 

the authority to approve AMOCs for this AD, 


khammond on DSKJM1Z7X2PROD with RULES
34770 Federal Register / Vol. 87, No. 110 / Wednesday, June 8, 2022 / Rules and Regulations 

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 local Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of the ECO Branch, send it to 

the attention of the person identified in 

paragraph (j) of this AD and email to: ANEAD-AMOC@faa.gov. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/ 

certificate holding district office. 

(j) Related Information 

For more information about this AD, 

contact Nicholas Paine, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 District 

Avenue, Burlington, MA 01803; phone: (781) 

238–7116; email: nicholas.j.paine@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 this AD specifies otherwise. 

(i) European Union Aviation Safety Agency 

(EASA) AD 2021–0169, dated July 19, 2021. 

(ii) [Reserved] 

(3) For more information about EASA AD 

2021–0169, contact EASA, KonradAdenauer-Ufer 3, 50668 Cologne, Germany; 

phone: +49 221 8999 000; email: ADs@

easa.europa.eu. You may find this material 

on the EASA website at https://

ad.easa.europa.eu. 

(4) You may view this material 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. This material may be 

found in the AD docket at https://

www.regulations.gov by searching for and 

locating Docket No. FAA–2022–0150. 

(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: fr.inspection@nara.gov, or go to 

https://www.archives.gov/federal-register/cfr/ 

ibr-locations.html. 

Issued on May 24, 2022. 

Ross Landes, 

Deputy Director for Regulatory Operations, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2022–12181 Filed 6–7–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0381; Project 

Identifier MCAI–2021–01314–R; Amendment 

39–22068; AD 2022–11–18] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Airbus Helicopters Model AS355E, 

AS355F, AS355F1, AS355F2, AS– 

365N2, AS 365 N3, SA–365N, SA– 

365N1, EC 155B, and EC155B1 

helicopters. This AD was prompted by 

investigation results from an engine 

compartment fire, which determined 

some of the internal parts of the engine 

upper fixed cowling (engine cowling) 

were painted with finish paint on top of 

the primer layer. This AD requires a 

one-time inspection of certain partnumbered engine cowlings, and 

corrective actions if necessary, 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 July 13, 

2022. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of July 13, 2022. 

ADDRESSES: For EASA material 

incorporated by reference (IBR) in this 

final rule, contact EASA, KonradAdenauer-Ufer 3, 50668 Cologne, 

Germany; telephone +49 221 8999 000; 

email ADs@easa.europa.eu; internet 

www.easa.europa.eu. You may find the 

EASA material on the EASA website at 

https://ad.easa.europa.eu. For Airbus 

Helicopters service information 

identified in this final rule, contact 

Airbus Helicopters, 2701 N Forum 

Drive, Grand Prairie, TX 75052; 

telephone (972) 641–0000 or (800) 232– 

0323; fax (972) 641–3775; or at https:// 

www.airbus.com/helicopters/services/ 

technical-support.html. You may view 

this material at the FAA, Office of the 

Regional Counsel, Southwest Region, 

10101 Hillwood Pkwy., Room 6N–321, 

Fort Worth, TX 76177. For information 

on the availability of this material at the 

FAA, call (817) 222–5110. Service 

information that is IBRed is also 

available in the AD docket at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2022– 

0381. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0381; 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 EASA AD, 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. 

FOR FURTHER INFORMATION CONTACT: 

Andrea Jimenez, Aerospace Engineer, 

COS Program Management Section, 

Operational Safety Branch, Compliance 

& Airworthiness Division, FAA, 1600 

Stewart Ave., Suite 410, Westbury, NY 

11590; telephone (516) 228–7330; email 

andrea.jimenez@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2021–0265, 

dated November 23, 2021 (EASA AD 

2021–0265), to correct an unsafe 

condition for Airbus Helicopters (AH), 

formerly Eurocopter, Eurocopter France, 

Aerospatiale, Sud Aviation, Model SA 

365 N, SA 365 N1, AS 365 N2, AS 365 

N3, EC 155 B, EC 155 B1, AS 355 E, AS 

355 F, AS 355F 1 and AS 355 F2 

helicopters, all serial numbers. 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to all Airbus Helicopters Model 

AS355E, AS355F, AS355F1, AS355F2, 

AS–365N2, AS 365 N3, SA–365N, SA– 

365N1, EC 155B, and EC155B1 

helicopters. The NPRM published in the 

Federal Register on March 29, 2022 (87 

FR 17955). The NPRM was prompted by 

investigation results from an engine 

compartment fire, which determined 

some of the internal parts of the engine 

cowling were painted with finish paint 

on top of the primer layer. The NPRM 

proposed to require a one-time 

inspection of certain part-numbered 

engine cowlings, and corrective actions 

if necessary, as specified in EASA AD 

2021–0265. 

The FAA is issuing this AD to detect 

finish paint inside the duct of the 

engine cowling. The unsafe condition, if 

not addressed, could result in fire 


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