Federal Register / Vol. 86, No. 133 / Thursday, July 15, 2021 / Rules and Regulations 37229 

royce; website: https://www.rolls-royce.com/ 

contact-us.aspx. 

(4) You may view this service information 

at 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. 

(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: fedreg.legal@nara.gov, or go to: 

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

ibr-locations.html. 

Issued on June 21, 2021. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–15055 Filed 7–14–21; 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; Amendment 

39–21613; AD 2021–13–08] 

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: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Safran Helicopter Engines, S.A. Arriel 

2C and Arriel 2S1 model turboshaft 

engines. This 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 AD 

requires the replacement of certain 

FADEC B DECUs. The FAA is issuing 

this AD to address the unsafe condition 

on these products. 

DATES: This AD is effective August 19, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of August 19, 2021. 

ADDRESSES: For service information 

identified in this final rule, 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. It is also available at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2021– 

0100. 

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 

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. 

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: 

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 Safran Helicopter Engines, 

S.A. Arriel 2C and Arriel 2S1 model 

turboshaft engines. The NPRM 

published in the Federal Register on 

February 26, 2021 (86 FR 11662). The 

NPRM was prompted by reports of error 

messages on the FADEC B DECU, 

caused by blistering of the varnish on 

the DECU circuit board. In the NPRM, 

the FAA proposed to require the 

replacement of certain FADEC B DECUs. 

The FAA is issuing this AD to address 

the unsafe condition on these products. 

The European Union Aviation Safety 

Agency (EASA), which is the Technical 

Agent for the Member States of the 

European Community, has issued EASA 

AD 2020–0046, dated March 4, 2020 

(referred to after this as ‘‘the MCAI’’), to 

address the unsafe condition on these 

products. The MCAI states: 

Occurrences have been reported of FADEC 

B DECU error messages, which were found to 

be caused by blistering of the varnish on the 

DECU circuit board. Subsequent 

investigation determined that the use of a 

non-compliant primer is related to the 

blistering effect which, in wet conditions, 

can cause malfunction of the stepper motor. 

This condition, if not corrected, could lead 

to loss of automatic control on both engines 

concurrently, possibly resulting in reduced 

control of the helicopter. 

To address this potentially unsafe 

condition, SAFRAN issued the MSB, as 

defined in this [EASA] AD, to provide 

instructions for identification and 

replacement of affected parts. For the reason 

described above, this [EASA] AD requires 

replacement of affected parts with 

serviceable parts. This [EASA] AD also 

prohibits (re-installation of affected parts. 

You may obtain further information 

by examining the MCAI in the AD 

docket on at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2021– 

0100. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received no comments on 

the NPRM or on the determination of 

the costs. 

Conclusion 

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 these 

products. This AD is adopted as 

proposed in the NPRM. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed Safran Helicopter 

Engines Note Technique AA187866, 

Version A, dated 18 Octobre 2019 

[October 18, 2019]. This service 

information identifies the serial 

numbers (S/Ns) of certain FADEC B 

DECUs installed on Arriel 2C and Arriel 

2S1 model turboshaft engines. 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. 

Other Related Service Information 

The FAA reviewed Safran Helicopter 

Engines Mandatory Service Bulletin 

(MSB) No. 292 73 2872, Version A, 

dated October 17, 2019. This MSB 

describes procedures for identifying the 

S/Ns of certain FADEC B DECUs and 

replacing certain FADEC B DECUs on 

Arriel 2C and Arriel 2S1 model 

turboshaft engines. 

Costs of Compliance 

The FAA estimates that this AD 

affects 148 engines installed on 

helicopters of U.S. registry. 

The FAA estimates the following 

costs to comply with this AD: 


khammond on DSKJM1Z7X2PROD with RULES
37230 Federal Register / Vol. 86, No. 133 / Thursday, July 15, 2021 / Rules and Regulations 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Replace the FADEC B DECU ........................ 1 work-hour × $85 per hour = $85 ................. $0 $85 $12,580 

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: 

2021–13–08 Safran Helicopter Engines, 

S.A. (Type Certificate Previously Held 

by Turbomeca, S.A.): Amendment 39– 

21613; Docket No. FAA–2021–0100; 

Project Identifier MCAI–2020–00309–E. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective August 19, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Safran Helicopter 

Engines, S.A. (Type Certificate previously 

held by Turbomeca, S.A.) Arriel 2C and 

Arriel 2S1 model turboshaft engines. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7321, Fuel Control/Turbine Engines. 

(e) Unsafe Condition 

This AD was prompted by reports of error 

messages of the full authority digital engine 

control (FADEC) B digital engine control unit 

(DECU), caused by blistering of the varnish 

on the DECU circuit board. The FAA is 

issuing this AD to prevent failure of the 

FADEC B DECU. The unsafe condition, if not 

addressed, could result in loss of engine 

thrust control and reduced control of the 

helicopter. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

For affected engines having an installed 

FADEC B DECU with a serial number (S/N) 

identified in Safran Helicopter Engines Note 

Technique AA187866, Version A, dated 18 

Octobre 2019 [Octobre 18, 2019] (the Note 

Technique), within 1,400 engine operating 

hours after the effective date of this AD, 

replace the FADEC B DECU with a part 

eligible for installation. 

(h) Installation Prohibition 

After the effective date of this AD, do not 

install onto any engine a FADEC B DECU 

having an S/N listed in the Note Technique. 

(i) Definition 

For the purpose of this AD, a part eligible 

for installation is a FADEC B DECU that does 

not have an S/N listed in the Note 

Technique. 

(j) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, ECO 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 ECO Branch, send it to 

the attention of the person identified in 

Related Information. You may email your 

request to: ANE-AD-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. 

(k) Related Information 

(1) For more information about this AD, 

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. 

(2) Refer to European Union Aviation 

Safety Agency (EASA) AD 2020–0046, dated 

March 4, 2020, for more information. You 

may examine the EASA AD in the AD docket 

at https://www.regulations.gov by searching 

for and locating Docket No. FAA–2021–0100. 

(l) 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) Safran Helicopter Engines Note 

Technique AA187866, Version A, dated 18 

Octobre 2019 [October 18, 2019]. 

(ii) [Reserved] 

(3) For Safran Helicopter Engines, S.A. 

service information identified in this AD, 

contact Safran Helicopter Engines, S.A., 

Avenue du 1er Mai, 40220 Tarnos, France; 

phone: +33 (0) 5 59 74 40 00. 

(4) You may view this service information 

at 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. 

(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, 


khammond on DSKJM1Z7X2PROD with RULES
Federal Register / Vol. 86, No. 133 / Thursday, July 15, 2021 / Rules and Regulations 37231 

email: fedreg.legal@nara.gov, or go to: 

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

ibr-locations.html. 

Issued on July 9, 2021. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–15041 Filed 7–14–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0340; Project 

Identifier MCAI–2020–01638–R; Amendment 

39–21634; AD 2021–14–07] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Helicopters (Type Certificate 

Previously Held by Eurocopter France) 

Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2003–25– 

01 which applied to certain Eurocopter 

France (now Airbus Helicopters) Models 

AS332C, AS332C1, AS332L, AS332L1, 

AS350B, AS350BA, AS350B1, 

AS350B2, AS350B3, AS350D, AS355E, 

AS355F, AS355F1, AS355F2, and 

AS355N helicopters. AD 2003–25–01 

required modifying and re-identifying 

the hoist operator control unit and 

replacing certain fuses. This AD was 

prompted by the identification of 

multiple errors in the applicable service 

information for the AS350-series and 

AS355-series helicopters and of other 

needed changes. This AD retains certain 

requirements of AD 2003–25–01, revises 

the applicability, and requires using 

corrected service information. This AD 

also requires reporting certain 

information and prohibits the 

installation of an affected hoist until the 

required actions are accomplished. The 

FAA is issuing this AD to address the 

unsafe condition on these products. 

DATES: This AD is effective August 19, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of August 19, 2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain other publication listed in 

this AD as of January 20, 2004 (68 FR 

69596, December 15, 2003). 

ADDRESSES: For service information 

identified in this final rule, contact 

Airbus Helicopters, 2701 North 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. Service information 

that is incorporated by reference is also 

available at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2021–0340. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0340; 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 Direction Generale De 

L’Aviation Civile (DGAC) AD, the 

European Union Aviation Safety Agency 

(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: Hal 

Jensen, Aerospace Engineer, Operational 

Safety Branch, Compliance & 

Airworthiness Division, FAA, 950 

L’Enfant Plaza N SW, Washington, DC 

20024; telephone (202) 267–9167; email 

hal.jensen@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2003–25–01, 

Amendment 39–13384 (68 FR 69596, 

December 15, 2003) (AD 2003–25–01), 

for Eurocopter France (now Airbus 

Helicopters) Model AS332C, C1, L, and 

L1, AS350B, BA, B1, B2, B3, and D, and 

AS355E, F, F1, F2, and N helicopters 

with a Breeze 300 pound electric hoist 

(hoist) and hoist operator control unit 

26M part number (P/N) 350A63–1136– 

00 or 350A63–1136–01, and hoist 

electric box 91M P/N 332A67–2875–00, 

installed. The NPRM published in the 

Federal Register on April 28, 2021 (86 

FR 22363). In the NPRM, the FAA 

proposed to require modifying and reidentifying the hoist operator control 

unit, replacing the fuses, and 

performing a functional test of the hoist 

operation and the emergency jettison 

controls. The NPRM also proposed to 

require reporting certain information 

and prohibit the installation of an 

affected hoist until the required actions 

are accomplished. 

The NPRM was prompted by EASA 

AD 2019–0228, dated September 12, 

2019 (EASA AD 2019–0228) to 

supersede DGAC AD 2002–585(A), 

dated November 27, 2002 (DGAC AD 

2002–585(A)), issued by DGAC, which 

is the aviation authority for France. 

EASA, which is the Technical Agent for 

the Member States of the European 

Union, issued EASA AD 2019–0228 to 

correct an unsafe condition for Airbus 

Helicopters (AH), formerly Eurocopter, 

Eurocopter France, Aerospatiale Model 

AS 350 B, AS 350 BA, AS 350 BB, AS 

350 B1, AS 350 B2, AS 350 B3, AS 350 

D, AS 355 E, AS 355 F, AS 355 F1, AS 

355 F2, and AS 355 N helicopters. 

EASA advises that Airbus Helicopters 

identified translation errors in the 

service information required for 

compliance by DGAC AD 2002–585(A). 

Airbus Helicopters was also informed 

that there could be helicopters modified 

by that service information with 

incorrect installations. Prompted by 

these findings, Airbus Helicopters 

revised the related service information. 

Therefore, EASA issued EASA AD 

2019–0228 to require modifying and reidentifying the hoist operator control 

unit, replacing the fuses, and 

performing a functional test of the hoist 

operation and the emergency jettison 

controls as intended by DGAC AD 

2002–585(A) with the revised service 

information. EASA AD 2019–0228 also 

requires reporting certain information to 

Airbus Helicopters and prohibits the 

installation of an affected part on any 

helicopter unless it has been modified. 

The NPRM also retains the 

requirements from AD 2003–25–01 for 

Model AS332C, C1, L, and L1 

helicopters with a certain hoist and 

hoist box installed, based on DGAC AD 

2002–584(A), dated November 27, 2002. 

Additionally, since the FAA issued 

AD 2003–25–01, the FAA discovered 

that the applicability needed to be 

revised. This AD revises the 

applicability by distinguishing the hoist 

box installations by P/N, clarifying that 

Airbus Helicopters service information 

refers to a hoist box as a hoist operator’s 

control unit, adding TRW, Lucas, and 

Air Equipement hoists for affected 

Model AS350-series and AS355-series 

helicopters, and adding an exception for 

affected helicopters to exclude those 

with a certain modification (MOD) 

installed. 


khammond on DSKJM1Z7X2PROD with RULES