[Docket No. FAA-2015-5539; Directorate Identifier 2015-NE-37-AD; Amendment '/f'-3 

39-18JQ<X; AD 2016-li:.X-*X] 

RlN 2120-AA64 

Airworthiness Directives; Turbomeca S.A. Turboshaft Engines 

AGENCY: Federal Aviation Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new airworthiness directive (AD) for all Turbomeca 

S.A. Arriel2E turbosha:ft engines. This AD requires removing the pre-TU 193 adjusted 

high-pressure/low-pressure pump and metering valve assembly and replacing it with a 

part that is eligible for installation. This AD also requires replacing the constant deltapressure (delta-P) diaphragm of the fuel metering valve. This AD was prompted by 

reports of fuel flow non-conformities found during acceptance tests of Arriel 2E 

hydro-mechanical metering units (HMUs). We are issuing this AD to prevent failure of 

the delta-P diaphragm, which could result in an tmcommanded in-flight shutdown and 

damage to the helicopter. 

DATES: This AD becomes effective [INSERT DATE 35 DAYS AFTER DATE OF 

PUBLICATION IN THE FEDERAL REGISTER]. 

ADDRESSES: For service information identified in this AD, contact Turbomeca S.A., 

40220 Tarnos, France; phone: 33 (0)5 59 74 40 00; fax: 33 (0)5 59 74 45 15. You may 

3/31116 

ANE-111 " 

" 

. , 

view this service information at the FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA. For information on the availability of this material at the 
Legal concurs. 

R, 

VB 

From: Warner, Brian (FAA) 

Nonconformities -- FRAN --Grid 3.0. 

Sent: Thursday, March 31, 2016 7:35AM 

To: Bennett, Vincent (FAA) 

Cc: Gustafson, Kyle (FAA); Triozzi, Eugene (FAA); Cerra, Anthony (FAA); Fullam, William (FAA); Fernandes, Carlos (FAA); 

Dickert, Kevin (FAA); Golinski, John (FAA); Donato, Paul (FAA) 

Subject: AcnON BY 4/6/16: 2015-NE-37-AD, Turbomeca Arriel 2E HMU Fuel Flow Nonconformities --FRAN-- Grid 3.0. 

Vince, 

Please review and provide comment! concurrence. 

We made no changes to the compliance section of this AD. We are issuing this AD as proposed. 

All others on copy, this is for informational purposes only, because the AD Manual allows us to limit 

our coordination of Final Rules that did not receive any comments to Regional Counsel and 

Directorate Management. 

Therefore, we are not distributing Versions 1.0 and 2.0. 

Thanks ... 

Brian M. Warner E&PD SAIB I MCAI Coordinator 

Technical Writer-Editor 

Engine & Propeller Directorate Standards Staff, ANE-11 0 

Phone: 781-238-7169 

Fax: 781-238-7199 

We value your feedback. Please consider completing the AVS Customer Feedback Form 

at: http://www. faa. gov/about/office org/headg uarters offices/avs/stakeholder feedback/air/field/ 

1 
Brian, 

The Boston AEG concurs. 

Thanks, 

Bill 

William J. Fullam 

Aviation Safety Inspector 

Aircraft Evaluation Group 

New England Region 

1200 District Avenue 

Burlington, MA 0 1803 

Phone: 781-238-7895 

Fax: 781-238-7026 

From: Fernandes, Carlos (FAA) 

Nonconformities -- FRAN -- Grid 3.0. 

Sent: Friday, April 01, 2016 10:37 AM 

To: Warner, Brian (FAA); Fullam, William (FAA) 

Cc: Gustafson, Kyle (FAA); Triozzi, Eugene (FAA); Cerra, Anthony (FAA); Golinski, John (FAA); Donato, Paul (FAA); 

Ferragamo, Patrick {FAA); Galvin, Jonathan (FAA) 

Subject: RE: ACTION BY 4/6/16: 2015-NE-37-AD, Turbomeca Arriel 2E HMU Fuel Flow Nonconformities --FRAN-- Grid 

3.0. 

Brian, 

I concur. 

Best regards, 

Carlos 

Carlos Fernandes 

Aerospace Engineer, Standards Staff 

ANE-112. COS and Standardization Branch 

FAA, Engine & Propeller Directorate 

T (781) 238-7189 F (781) 238-7199 

1 
Brian, 

I concur. 

Best regards, 

Carlos Carlos Fernandes 

Aerospace Engineer, Standards Staff 

ANE-112, COS and Standardization Branch 

FAA, Engine & Propeller Directorate 

T (781) 238-7189 F (781) 238-7199 

)Ve va(ue yourJCec(6ack. C{icfi fien to sene( us your fee£6acR. 

From: Warner, Brian (FAA) 

Sent: Friday, April 01, 2016 10:16 AM 

To: Fernandes, Carlos {FAA); Fullam, William (FAA) 

Cc: Gustafson, Kyle (FAA); Triozzi, Eugene (FAA); Cerra, Anthony (FAA); Golinski, John (FAA); Donato, Paul (FAA); 

Ferragamo, Patrick (FAA); Galvin, Jonathan (FAA) 

Subject: ACTION BY 4/6/16: 2015-NE-37-AD, Turbomeca Arriel 2E HMU Fuel Flow Nonconformities --FRAN-- Grid 3.0. 

Carlos and Bill, 

I had forwarded this FRAN AD to you for information using our accelerated process for FRs with no comments or other 

changes incorporated. We have reverted to the full grid routing method pending review of the 'info only' process. 

Please review v3.0 and provide comment/ concurrence. I have already received concurrence from Legal. 

Thanks ... 

Brian M. Warner E&PD SAIB I MCAI Coordinator 

Technical Writer-Editor 

Engine & Propeller Directorate Standards Staff, ANE-11 0 

1