Federal Register / Vol. 86, No. 129 / Friday, July 9, 2021 / Rules and Regulations 36205 

of the local flight standards district office/ 

certificate holding district office. 

(k) Related Information 

For more information about this AD, 

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. 

(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 this AD specifies otherwise. 

(i) European Union Aviation Safety Agency 

(EASA) AD 2021–0040, dated January 27, 

2021. 

(ii) [Reserved] 

(3) For EASA AD 2021–0040, contact the 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; phone: +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. 

(4) 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. 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–2021–0542. 

(5) You may view this material 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 July 2, 2021. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–14690 Filed 7–7–21; 11:15 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2020–1180; Project 

Identifier MCAI–2020–00517–E; Amendment 

39–21608; AD 2021–13–03] 

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 certain 

Safran Helicopter Engines, S.A. (Safran 

Helicopter Engines) Arriel 2B, 2B1, 2C, 

2C1, 2C2, 2S1 and 2S2 model turboshaft 

engines. This AD was prompted by 

reports of non-conforming fuel filter 

pre-blockage pressure switches. This AD 

requires repetitive visual inspections of 

the fuel filter by-pass indicator pop-up, 

a one-time operational test of the fuel 

filter pre-blockage pressure switch and, 

depending on the findings, replacement 

of the fuel filter pre-blockage pressure 

switch with a part eligible for 

installation. The FAA is issuing this AD 

to address the unsafe condition on these 

products. 

DATES: This AD is effective August 13, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of August 13, 2021. 

ADDRESSES: For service information 

identified in this final rule, contact 

Safran Helicopter Engines, S.A., Avenue 

du 1er Mai, Tarnos, France; phone: +33 

(0) 5 59 74 45 11. 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–2020– 

1180. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2020–1180; 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 certain Safran Helicopter 

Engines Arriel 2B, 2B1, 2C, 2C1, 2C2, 

2S1 and 2S2 model turboshaft engines. 

The NPRM published in the Federal 

Register on February 22, 2021 (86 FR 

10501). The NPRM was prompted by 

reports of non-conforming fuel filter 

pre-blockage pressure switches. In the 

NPRM, the FAA proposed to require 

repetitive visual inspections of the fuel 

filter by-pass indicator pop-up, a onetime operational test of the fuel filter 

pre-blockage pressure switch and, 

depending on the findings, replacement 

of the fuel filter pre-blockage pressure 

switch with a part eligible for 

installation. 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 2019–0180, dated July 25, 2019 

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

address the unsafe condition on these 

products. The MCAI states: 

Occurrences have been reported of nonconforming fuel filter pre-blockage pressure 

switches, manufactured before December 

2016. The non-conformity of the fuel filter 

pre-blockage pressure switch can cause its 

non-activation in case of fuel system 

contamination, with consequent opening of 

the by-pass without indication in the cockpit. 

This condition, if not detected and 

corrected, and in case of fuel contamination, 

could lead to an uncommanded in-flight 

shut-down, possibly resulting in an 

emergency autorotation landing on a single 

engine helicopter, or to a double 

uncommanded in-flight shut-down on a twin 

engine helicopter. 

To address this potential unsafe condition, 

SAFRAN issued the MSB, providing 

inspection instructions. 

For the reasons described above, this 

[EASA AD] requires repetitive daily visual 

checks of the fuel filter by-pass indicator 

pop-up. This [EASA] AD also requires a oneVerDate Sep<11>2014 15:58 Jul 08, 2021 Jkt 253001 PO 00000 Frm 00013 Fmt 4700 Sfmt 4700 E:\FR\FM\09JYR1.SGM 09JYR1

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36206 Federal Register / Vol. 86, No. 129 / Friday, July 9, 2021 / Rules and Regulations 

time operational check of the affected part 

and, depending on findings, replacement of 

that part, which constitutes terminating 

action for the repetitive daily checks as 

required by this [EASA] AD. 

You may obtain further information 

by examining the MCAI in the AD 

docket at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2020–1180. 

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 and the 

public interest require adopting this 

final rule 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 Task 73–23–01– 

750–801–A01—Pre-Blockage Pressure 

Switch of the Fuel Filter Tests 

(Electrical), dated November 30, 2012, 

from the Turbomeca Arriel 2 S1 

Maintenance Manual. Task 73–23–01– 

750–801–A01 provides instructions for 

performing an operational test of the 

fuel filter pre-blockage pressure switch. 

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 2869, Version B, 

dated December 2018. The MSB 

describes procedures for identifying and 

securing pre-blockage pressure switches 

of fuel filter part number P/N 9 550 17 

200 0, which are potentially nonconforming. 

Justification for Allowing Pilot To 

Perform Visual Inspection 

This final rule allows the visual 

inspections required by paragraph (g)(1) 

of this AD to be performed by an 

aircrew member holding at least a 

private pilot certificate. Performing a 

visual inspection to determine if the 

fuel filter by-pass indicator pop-up has 

been activated is not considered an 

action that must be performed by a 

certified person under 14 CFR 43.3. This 

authorization is an exception to our 

standard maintenance regulations. 

Costs of Compliance 

The FAA estimates that this AD 

affects 775 engines installed on 

helicopters 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 

Visual inspection of fuel filter by-pass indicator.1 work-hour × $85 per hour = $85 ................. $0 $85 $65,875 

Operational test of the fuel filter pre-blockage 

pressure switch.

3 work-hours × $85 per hour = $255 ............. 0 255 197,625 

The FAA estimates the following 

costs to do any necessary replacement 

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 fuel filter pre-blockage pressure switch ......... 2 work-hours × $85 per hour = $170 ........................... $225 $395 

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 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. 


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Federal Register / Vol. 86, No. 129 / Friday, July 9, 2021 / Rules and Regulations 36207 

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: 

2021–13–03 Safran Helicopter Engines, 

S.A. (Type Certificate previously held by 

Turbomeca, S.A.): Amendment 39– 

21608; Docket No. FAA–2020–1180; 

Project Identifier MCAI–2020–00517–E. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective August 13, 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 2B, 2B1, 2C, 

2C1, 2C2, 2S1 and 2S2 model turboshaft 

engines with a fuel filter pre-blockage 

pressure switch, part number 9 550 17 200 

0, and serial number (S/N) 00001 to 12753, 

inclusive, and S/N A0001 to A0247, 

inclusive, installed. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7321, Fuel Control/Turbine Engines. 

(e) Unsafe Condition 

This AD was prompted by reports from the 

manufacturer of non-conforming fuel filter 

pre-blockage pressure switches manufactured 

before December 2016. The FAA is issuing 

this AD to prevent the non-conformity of the 

fuel filter pre-blockage pressure switch, 

which can cause its non-activation in case of 

fuel system contamination, with consequent 

opening of the by-pass without indication in 

the cockpit. The unsafe condition, if not 

addressed, could result in uncommanded inflight shut-down of the engine, an emergency 

autorotation landing on a single engine 

helicopter, or an uncommanded in-flight 

shut-down of both engines on a twin engine 

helicopter. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) After the effective date of this AD, 

during the pre-flight inspection for the first 

flight of each day the engine is operated, 

perform a visual inspection of the fuel filter 

by-pass indicator to determine if the fuel 

filter by-pass indicator pop-up has been 

activated. 

(2) Within the next 300 hydro-mechanical 

metering unit (HMU) operating hours or 180 

days after the effective date of this AD, 

whichever occurs first, perform an 

operational test of the fuel filter pre-blockage 

pressure switch in accordance with Task 73– 

23–01–750–801–A01—Pre-Blockage Pressure 

Switch of the Fuel Filter Tests (Electrical), 

dated November 30, 2012, (the Task) from the 

Turbomeca Arriel 2 S1 Maintenance Manual. 

(3) During any visual inspection required 

by paragraph (g)(1) of this AD, if the fuel 

filter by-pass indicator pop-up has been 

activated or, during the operational test 

required by paragraph (g)(2) of this AD, any 

discrepancy is detected as described by the 

Task, before next flight, replace the fuel filter 

pre-blockage pressure switch with a part 

eligible for installation. 

(4) The actions required by paragraph (g)(1) 

of this AD may be performed by the owner/ 

operator (pilot) holding at least a private pilot 

certificate, and must be entered into the 

aircraft records showing compliance with 

this AD, in accordance with 14 CFR 43.9 

(a)(1) through (4) and 14 CFR 91.417(a)(2)(v). 

The records must be maintained as required 

by 14 CFR 91.417, 121.380, or 135.439. 

(h) Terminating Action 

Passing the operational test (no failure 

detected) of the fuel filter pre-blockage 

pressure switch, as required by paragraph 

(g)(2) of this AD, or replacement of the fuel 

filter pre-blockage pressure switch with a 

part eligible for installation, constitutes a 

terminating action for the repetitive visual 

inspections required by paragraph (g)(1) of 

this AD for that engine. 

(i) Definition 

A part eligible for installation is a fuel filter 

pre-blockage pressure switch that is not 

listed in the Applicability, paragraph (c), of 

this AD, or a fuel filter pre-blockage pressure 

switch that has passed the operational test 

(no discrepancies detected) required by 

paragraph (g)(2) of this AD. 

(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 EASA AD 2019–0180, dated 

July 25, 2019, 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–2020–1180. 

(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) Task 73–23–01–750–801–A01—PreBlockage Pressure Switch of the Fuel Filter 

Tests (Electrical), dated November 30, 2012, 

from the Turbomeca Arriel 2 S1 Maintenance 

Manual. 

(ii) [Reserved] 

(3) For Turbomeca service information 

identified in this AD, contact Safran 

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

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, 

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

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

ibr-locations.html. 

Issued on July 1, 2021. 

Ross Landes, 

Deputy Director for Regulatory Operations, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–14520 Filed 7–8–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0456; Project 

Identifier MCAI–2021–00212–T; Amendment 

39–21601; AD 2021–12–14] 

RIN 2120–AA64 

Airworthiness Directives; Yabora ̃

Indu ́stria Aerona ́utica S.A. (Type 

Certificate Previously Held by Embraer 

S.A.) Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2020–08– 

11, which applied to all Yabora ̃

Indu ́ stria Aerona ́utica Model ERJ 190– 


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