Federal Register / Vol. 86, No. 37 / Friday, February 26, 2021 / Proposed Rules 11659 

For the reasons discussed above, I 

certify this proposed regulation: 

(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 Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 14 CFR part 

39 as follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 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) 2010–16–51, Amendment 39– 

16410 (75 FR 53857, September 2, 

2010); and 

■ b. Adding the following new AD: 

Airbus Helicopters (Type Certificate 

Previously Held by Eurocopter France): 

Docket No. FAA–2021–0092; Project 

Identifier MCAI–2020–01501–R. 

(a) Comments Due Date 

The FAA must receive comments by April 

12, 2021. 

(b) Affected Airworthiness Directives (ADs) 

This AD removes AD 2010–16–51, 

Amendment 39–16410 (75 FR 53857, 

September 2, 2010). 

(c) Applicability 

This AD applies to Airbus Helicopters 

(type certificate previously held by 

Eurocopter France) Model SA330J 

helicopters, certificated in any category, with 

main gearbox (MGB) oil cooling fan (fan) 

rotor shaft bearings (both rear and front) part 

number (P/N) 704A33651114 (manufacturer 

P/N (MP/N) 205FFTX74K6–G33) or P/N 

704A33651268 (MP/N 594918), installed. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 6322; Main Gearbox Oil Cooler. 

(e) Reason 

This AD was prompted by the 

development of an improved MGB fan rotor 

shaft bearing design. The FAA is issuing this 

AD to prevent rotor burst of the MGB fan, 

damage to the hydraulic lines and flight 

controls, and subsequent loss of control of 

the helicopter. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Requirements 

Except as specified in paragraph (h) of this 

AD: Comply with all required actions and 

compliance times specified in, and in 

accordance with, European Union Aviation 

Safety Agency (EASA) AD No. 2020–0171, 

dated July 28, 2020 (EASA AD 2020–0171). 

(h) Exceptions to EASA AD 2020–0171 

(1) Where EASA AD 2020–0171 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(2) The ‘‘Remarks’’ section of EASA AD 

2020–0171 does not apply to this AD. 

(3) Where EASA AD 2020–0171 refers to 

flight hours (FH), this AD requires using 

hours time-in-service. 

(4) Where EASA AD 2020–0171 requires 

measuring for play, this AD requires 

measuring the gap between each MGB fan 

rotor blade and the upper section of the guide 

vane bearing housing. 

(5) Where ‘‘The ASB’’ service information 

referenced in EASA AD 2020–0171 specifies 

to return certain parts to Airbus Helicopters, 

this AD requires removing those parts from 

service instead. 

(6) While ‘‘The ASB’’ service information 

referenced in EASA AD 2020–0171 specifies 

completing the response form in Appendix 4, 

this AD does not contain that requirement. 

(i) No Reporting Requirement 

Although the service information 

referenced in EASA AD 2020–0171 specifies 

to submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

(j) Special Flight Permit 

Special flight permits, as described in 14 

CFR 21.197 and 21.199, are not allowed. 

(k) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Strategic Policy 

Rotorcraft Section, 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 Strategic Policy 

Rotorcraft Section, send it to: Manager, 

Strategic Policy Rotorcraft Section, FAA, 

10101 Hillwood Pkwy., Fort Worth, TX 

76177; telephone (817) 222–5110. 

Information may be emailed to: 9-ASW-FTWAMOC-Requests@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. 

(l) Related Information 

(1) For EASA AD 2020–0171, contact the 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 8999 

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

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

EASA AD on the EASA website at https://

ad.easa.europa.eu. 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. This 

material may be found in the AD docket on 

the internet at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2021–0092. 

(2) For more information about this AD, 

contact Mahmood Shah, Aerospace Engineer, 

Certification Section, Fort Worth ACO 

Branch, FAA, 10101 Hillwood Pkwy., Fort 

Worth, TX 76177; telephone (817) 222–5538; 

email Mahmood.g.shah@faa.gov. 

Issued on February 5, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–03665 Filed 2–25–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0020; Project 

Identifier MCAI–2020–01639–R] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to 

supersede Airworthiness Directive (AD) 

2019–03–12, which applies to certain 

Airbus Helicopters Model EC225LP 

helicopters. AD 2019–03–12 requires 

repetitively inspecting, cleaning, and 

lubricating each life raft inflation 

cylinder percussion system bellcrank 

(bellcrank). Since the FAA issued AD 

2019–03–12, the FAA determined that 

any affected bellcrank must be replaced 

with a serviceable bellcrank, which 

would terminate the repetitive actions. 

This proposed AD would continue to 

require the actions specified in AD 

2019–03–12, and would require 

replacing any affected bellcrank with a 

serviceable bellcrank. The FAA is 

proposing this AD to address the unsafe 

condition on these products. 

DATES: The FAA must receive comments 

on this proposed AD by April 12, 2021. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 


khammond on DSKJM1Z7X2PROD with PROPOSALS
11660 Federal Register / Vol. 86, No. 37 / Friday, February 26, 2021 / Proposed Rules 

• Federal eRulemaking Portal: Go to 

https://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: 202–493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC 20590. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this proposed 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/technicalsupport.html. You may view this service 

information 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. 

Examining the AD Docket 

You may examine the AD docket on 

the internet at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2021– 

0020; or in person at Docket Operations 

between 9 a.m. and 5 p.m., Monday 

through Friday, except Federal holidays. 

The AD docket contains this NPRM, any 

comments received, and other 

information. The street address for 

Docket Operations is listed above. 

Comments will be available in the AD 

docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Blaine Williams, Aviation Safety 

Engineer, Los Angeles ACO Branch, 

3960 Paramount Boulevard, Lakewood, 

CA 90712–4137; telephone 562–627– 

5371; email blaine.willaims@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites you to send any 

written relevant data, views, or 

arguments about this proposal. Send 

your comments to an address listed 

under ADDRESSES. Include ‘‘Docket No. 

FAA–2021–0020; Project Identifier 

MCAI–2020–01639–R’’ at the beginning 

of your comments. The most helpful 

comments reference a specific portion of 

the proposal, explain the reason for any 

recommended change, and include 

supporting data. The FAA will consider 

all comments received by the closing 

date and may amend this proposal 

because of those comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to https://

www.regulations.gov, including any 

personal information you provide. The 

agency will also post a report 

summarizing each substantive verbal 

contact received about this proposal. 

Confidential Business Information 

CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 

Under the Freedom of Information Act 

(FOIA) (5 U.S.C. 552), CBI is exempt 

from public disclosure. If your 

comments responsive to this NPRM 

contain commercial or financial 

information that is customarily treated 

as private, that you actually treat as 

private, and that is relevant or 

responsive to this NPRM, it is important 

that you clearly designate the submitted 

comments as CBI. Please mark each 

page of your submission containing CBI 

as ‘‘PROPIN.’’ The FAA will treat such 

marked submissions as confidential 

under the FOIA, and they will not be 

placed in the public docket of this 

NPRM. Submissions containing CBI 

should be sent to Blaine Williams 

Aviation Safety Engineer, Los Angeles 

ACO Branch, 3960 Paramount 

Boulevard, Lakewood, CA 90712–4137; 

telephone 562–627–5371; email 

blaine.willaims@faa.gov. Any 

commentary that the FAA receives that 

is not specifically designated as CBI will 

be placed in the public docket for this 

rulemaking. 

Discussion 

The FAA issued AD 2019–03–12, 

Amendment 39–19564 (84 FR 8250, 

March 7, 2019) (AD 2019–03–12), which 

applies to certain Airbus Helicopters 

Model EC225LP helicopters. AD 2019– 

03–12 requires repetitively inspecting, 

cleaning, and lubricating each bellcrank. 

The FAA issued AD 2019–03–12 to 

address jammed bellcranks in the life 

raft jettison inflation cylinder 

percussion system. This condition could 

result in failure of a life raft to release 

in an emergency and subsequent injury 

to occupants. 

Actions Since AD 2019–03–12 Was 

Issued 

Since the FAA issued AD 2019–03– 

12, the FAA determined that the 

affected bellcranks must be replaced 

with serviceable bellcranks, which 

would terminate the need for the 

repetitive actions. 

The EASA, which is the Technical 

Agent for the Member States of the 

European Union, has issued EASA AD 

2019–0287, dated November 27, 2019 

(EASA AD 2019–0287) (also referred to 

as the Mandatory Continuing 

Airworthiness Information, or the 

MCAI), to correct an unsafe condition 

for certain Airbus Helicopters Model 

EC225LP helicopters. EASA AD 2019– 

0287 supersedes EASA AD 2019–0102, 

dated May 9, 2019. EASA AD 2019– 

0102, dated May 9, 2019, superseded 

EASA AD 2016–0200, dated October 11, 

2016, which corresponds to FAA AD 

2019–03–12. 

This proposed AD was prompted by 

reports of jammed bellcranks in the life 

raft inflation cylinder percussion 

system. The FAA is proposing this AD 

to address jammed bellcranks in the life 

raft jettison inflation cylinder 

percussion system. This condition could 

result in failure of a life raft to release 

in an emergency and subsequent injury 

to occupants. See the MCAI for 

additional background information. 

Related Service Information Under 1 

CFR Part 51 

Airbus Helicopters has issued Alert 

Service Bulletin EC225–25A211, 

Revision 1, dated October 23, 2019. This 

service information describes 

procedures for replacing any affected 

life raft release bellcrank with a 

serviceable bellcrank. 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 the ADDRESSES section. 

Other Related Service Information 

Airbus Helicopters has also issued 

Emergency Alert Service Bulletin No. 

05A050, Revision 0, dated July 22, 2016; 

and Emergency Alert Service Bulletin 

No. 05A050, Revision 1, dated April 3, 

2019. This service information describes 

procedures for cleaning and lubricating 

each bellcrank and pivot link of the life 

raft inflation cylinder percussion system 

and removing any corrosion. 

FAA’s Determination and Requirements 

of This Proposed AD 

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 the State 

of Design Authority, the FAA has been 

notified of the unsafe condition 

described in the MCAI and service 

information referenced above. The FAA 

is proposing this AD after evaluating all 

known relevant information and 

determining that an unsafe condition is 

likely to exist or develop on other 

products of the same type design. 


khammond on DSKJM1Z7X2PROD with PROPOSALS
Federal Register / Vol. 86, No. 37 / Friday, February 26, 2021 / Proposed Rules 11661 

Proposed AD Requirements 

This proposed AD would retain all 

requirements of AD 2019–03–12. This 

proposed AD would also require 

accomplishing the actions specified in 

the service information described 

previously, except as discussed under 

‘‘Differences Between this Proposed AD 

and the MCAI or Service Information.’’ 

Differences Between This Proposed AD 

and the MCAI or Service Information 

EASA AD 2019–0287 requires 

replacing each affected bellcrank with a 

serviceable part within 6 months after 

the effective date of that AD. This 

proposed AD would require replacing 

each affected bellcrank with a 

serviceable part within 6 months after 

the effective date of this AD, or before 

the next operation over water, 

whichever occurs first. 

Costs of Compliance 

The FAA estimates that this proposed 

AD affects 28 helicopters of U.S. 

registry. The FAA estimates the 

following costs to comply with this 

proposed AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Retained actions from AD 2019–03–12 ......... 16 work-hours × $85 per hour = $1,360 ........ Minimal .......... $1,360 $38,080 

New proposed actions .................................... 4 work-hours × $85 per hour = $340 ............. $1,646 ............ 1,986 55,608 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. Subtitle VII: 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

The FAA is issuing this rulemaking 

under the authority described in 

Subtitle VII, Part A, Subpart III, Section 

44701: General requirements. Under 

that section, Congress charges the FAA 

with promoting safe flight of civil 

aircraft in air commerce by prescribing 

regulations for practices, methods, and 

procedures the Administrator finds 

necessary for safety in air commerce. 

This regulation is within the scope of 

that authority because it addresses an 

unsafe condition that is likely to exist or 

develop on products identified in this 

rulemaking action. 

Regulatory Findings 

The FAA determined that this 

proposed AD would not have federalism 

implications under Executive Order 

13132. This proposed AD would not 

have a substantial direct effect on the 

States, on the relationship between the 

national Government and the States, or 

on the distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify this proposed regulation: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) 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 Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 14 CFR part 

39 as follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 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) 2019–03–12, Amendment 39– 

19564 (84 FR 8250, March 7, 2019); and 

■ b. Adding the following new AD: 

Airbus Helicopters: Docket No. FAA–2021– 

0020; Project Identifier MCAI–2020– 

01639–R. 

(a) Comments Due Date 

The FAA must receive comments by April 

12, 2021. 

(b) Affected Airworthiness Directives (ADs) 

This AD removes AD 2019–03–12, 

Amendment 39–19564 (84 FR 8250, March 

27, 2019) (AD 2019–03–12). 

(c) Applicability 

This AD applies to Airbus Helicopters 

Model EC225LP helicopters, all manufacturer 

serial numbers, certificated in any category, 

equipped with emergency life rafts installed 

in the multi-purpose sponsons. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 2564, Life Raft. 

(e) Reason 

This AD was prompted by reports of 

jammed bellcranks in the life raft inflation 

cylinder percussion system. The FAA is 

issuing this AD to address jammed bellcranks 

in the life raft jettison inflation cylinder 

percussion system. This condition could 

result in failure of a life raft to release in an 

emergency and subsequent injury to 

occupants. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Definitions 

For the purposes of this AD, the definitions 

specified in paragraphs (g)(1) through (4) of 

this AD apply. 

(1) Group 1: Helicopters that have an 

affected part installed. 

(2) Group 2: Helicopters that do not have 

an affected part installed. A helicopter that 

embodies Airbus Helicopters Modification 07 

28457 in production is a Group 2 helicopter, 

provided the helicopter remains in that 

configuration. 

(3) Affected part: Life raft release bell 

cranks part number (P/N) 332A41–4396–20 

(left-hand (LH) side) and P/N 332A41–4396– 

21 (right-hand (RH) side). 

(4) Serviceable part: Life raft release bell 

cranks P/N 332A41–4396–22 (LH) and P/N 

332A41–4396–23 (RH). 

(h) Retained Repetitive Actions, With 

Specified Helicopter Group and New Note 

This paragraph restates the requirements of 

paragraph (e) of AD 2019–03–12, with a 

specified helicopter group and new Note 1. 

For Group 1: Before further flight, and 

thereafter at intervals not to exceed 6 months: 

(1) Clean each bellcrank and pivot link and 

inspect each bellcrank hole for corrosion. If 

there is any corrosion in a bellcrank hole: 

(i) Remove the corrosion without 

exceeding a maximum depth of 0.1 

millimeter (0.004 inch). 

(ii) Clean each pivot link using 400-grain 

abrasive paper. 

(iii) Apply corrosion protectant (Alodine 

1200 or equivalent) to each bellcrank hole. 

(2) Lubricate each bellcrank hole with 

grease before assembling the bellcrank. 

Note 1 to paragraph (h): Airbus 

Helicopters Emergency Alert Service Bulletin 

No. 05A050, Revision 0, dated July 22, 2016; 

and Airbus Helicopters Emergency Alert 


khammond on DSKJM1Z7X2PROD with PROPOSALS
11662 Federal Register / Vol. 86, No. 37 / Friday, February 26, 2021 / Proposed Rules 

Service Bulletin No. 05A050, Revision 1, 

dated April 3, 2019; describe procedures for 

cleaning and lubricating each bellcrank and 

pivot link of the life raft inflation cylinder 

percussion system and removing any 

corrosion. 

(i) New Requirement of This AD: Bellcrank 

Replacement 

For Group 1: Within 6 months after the 

effective date of this AD, or before the next 

operation over water, whichever occurs first, 

replace each affected bellcrank with a 

serviceable part, as defined in paragraph 

(g)(4) of this AD, in accordance with 

Paragraph 3.B.2. of the Accomplishment 

Instructions of Airbus Helicopters Alert 

Service Bulletin EC225–25A211, Revision 1, 

dated October 23, 2019; except where the 

service information specifies to remove and 

scrap certain parts, this AD requires 

removing those parts from service instead. 

(j) Terminating Action for Repetitive Actions 

Required by Paragraph (h) of This AD 

Accomplishment of the bellcrank 

replacement required by paragraph (i) of this 

AD is terminating action for the repetitive 

actions required by paragraph (h) of this AD 

for that helicopter only. 

(k) Parts Installation Limitation 

(1) For Group 1: After the replacement 

required by paragraph (i) of this AD is done, 

only a serviceable part, as defined in 

paragraph (g)(4) of this AD, is allowed to be 

installed on that helicopter. 

(2) For Group 2: As of the effective date of 

this AD, only a serviceable part, as defined 

in paragraph (g)(4) of this AD, is allowed to 

be installed on any helicopter. 

(l) Special Flight Permit 

Special flight permits, as described in 14 

CFR 21.197 and 21.199, are not allowed. 

(m) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Strategic Policy 

Rotorcraft Section, 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 Strategic Policy 

Rotorcraft Section, send it to: Manager, 

Strategic Policy Rotorcraft Section, FAA, 

10101 Hillwood Pkwy., Fort Worth, TX 

76177; telephone 817–222–5110. Information 

may be emailed to: 9-ASW-FTW-AMOCRequests@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. 

(n) Related Information 

(1) For more information about this AD, 

contact Blaine Williams, Aviation Safety 

Engineer, Los Angeles ACO Branch, 3960 

Paramount Boulevard, Lakewood, CA 90712– 

4137; telephone 562–627–5371; email 

blaine.willaims@faa.gov. 

(2) For service information identified in 

this AD, 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 

service information 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. 

Issued on January 28, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–03666 Filed 2–25–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0100; Project 

Identifier MCAI–2020–00309–E] 

RIN 2120–AA64 

Airworthiness Directives; Safran 

Helicopter Engines, S.A. (Type 

Certificate Previously Held by 

Turbomeca, S.A.) Turboshaft Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for all 

Safran Helicopter Engines, S.A. Arriel 

2C and Arriel 2S1 model turboshaft 

engines. This proposed AD was 

prompted by reports of error messages 

on the full authority digital engine 

control (FADEC) B digital engine control 

unit (DECU), caused by blistering of the 

varnish on the DECU circuit board. This 

proposed AD would require the 

replacement of certain FADEC B DECUs. 

The FAA is proposing this AD to 

address the unsafe condition on these 

products. 

DATES: The FAA must receive comments 

on this proposed AD by April 12, 2021. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

https://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12 140, 1200 New Jersey Avenue SE, 

Washington, DC 20590. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this NPRM, contact Safran Helicopter 

Engines, S.A., Avenue du 1er Mai, 

40220 Tarnos, France; phone: +33 (0) 5 

59 74 40 00. 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 (781) 238–7759. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0100; or in person at Docket 

Operations between 9 a.m. and 5 p.m., 

Monday through Friday, except Federal 

holidays. The AD docket contains this 

NPRM, the mandatory continuing 

airworthiness information (MCAI), any 

comments received, and other 

information. The street address for 

Docket Operations is listed above. 

FOR FURTHER INFORMATION CONTACT: 

Wego Wang, Aviation Safety Engineer, 

ECO Branch, FAA, 1200 District 

Avenue, Burlington, MA 01803; phone: 

(781) 238–7134; fax: (781) 238–7199; 

email: wego.wang@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites you to send any 

written relevant data, views, or 

arguments about this proposal. Send 

your comments to an address listed 

under ADDRESSES. Include ‘‘Docket No. 

FAA–2021–0100; Project Identifier 

MCAI–2020–00395–E’’ at the beginning 

of your comments. The most helpful 

comments reference a specific portion of 

the proposal, explain the reason for any 

recommended change, and include 

supporting data. The FAA will consider 

all comments received by the closing 

date and may amend this proposal 

because of those comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to https://

www.regulations.gov, including any 

personal information you provide. The 

agency will also post a report 

summarizing each substantive verbal 

contact received about this NPRM. 


khammond on DSKJM1Z7X2PROD with PROPOSALS