Version 3.0 (1211112012) [4910-13-P] 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

39-X~X; AD 200X-XX-XX] 

l'13P1 ~0/:J.-Q.?-b~ RIN 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. ArrieliAI , 1A2, IB, IC, ICI , IC2, ID, IDI , 1E2, IKI , IS, and lSI turboshaft 

engines. This AD requires performing a high gas generator speed (NG) rating vibration 

check. This AD was prompted by several reports ofuncommanded in-flight shutdown on 

Arriel I engines. We are issuing this AD to prevent an uncommanded in-flight shutdown 

of the engine, which could result in an emergency landing. 

DATES: This AD becomes effective [Insert date 35 days after date of publication in the 

FEDERAL REGISTER]. 

ONCURRENCES 

ROUTING SYMBOL 

ANE-110 

ATE 

12/ 18/2012 

ROUTING SYMBOL 

ANE-111 

INITIALS/ SURNAME 

TFitzjerald/DA 

4 .. ;il.dU.S. Department of Transportation, I200 New Jersey Avenue SE., West Building Ground ATE 

/!.-zg-fZ,. 

Floor, Room WI2-I40, Washington, DC 20590-0001. ROUTING SYMBOL 

ANE-100 

FOR FURTHER INFORMATION CONTACT: Frederick Zink, Aerospace Engineer, 

Engine Certification Office, FAA, Engine & Propeller Directorate, I2 New England /d-Jif(r 
Re: ACTION BY 12/18/2012: 12-NE-19-AD, Turbomeca S.A., Gas Generator 

Rear Bearing, Final rule --Version 3.0 

VincentBennett t D lA 12/18/20121104AM ANE-007, Office of Regional Counsel o: rexe ce : 

Legal concurs. 

Regards, 

v 

Drexel Ace 

From : 

To: 

Cc: James E Gray, John Golinski, Paul Donato 

Hi Vince, Version 3.0 is attached for your review ... 

Drexel Ace/ANE/FAA 

ANE-11 0, Standards Staff 

Vincent Bennett/ANE/FAA@FAA, 

12/11/2012 01 :56:39 PM 

Cc: 

Date: 

John Golinski/ANE/FAA@FAA, Paul Donato/ANE/FAA@FAA, James E Gray/ANE/FAA@FAA 

12/11/2012 01 :56PM 

Subject: 

Hi Vince, 

ACTION BY 12/18/2012: 12-NE-19-AD, Turbomeca S.A., Gas Generator Rear Bearing, Final rule--

Version 3.0 

Version 3.0 is attached for your review I concurrence. 

This is a Final Rule After Notice-- NPRM published September 13, 2012. 

Thanks. 

--Drexel 

12ne19f.doc 

Drexel Ace 

Technical Writer-Editor 

Federal Aviation Administration 

Air Certification Service 

Engine & Propeller Directorate Standards Staff, ANE-11 0 

Burlington, MA 

Phone: 781-238-7197 
Re: ACTION BY 12/10/2012: 12-NE-19-AD, Turbomeca S.A., Gas Generator 

Rear Bearing, Final rule --Version 2.0 

Tara Fitzgerald 

ANE 111 R I k

. d P 1

. to. Drexel Ace 12/07/2012 08:53AM - . u ema mg an o 1cy 

Cc: Dale Johnson, Frederick Zink, John Golinski, Paul Donato 

Drexel, 

I concur with version 2.0. 

Tara Fitzgerald 

Federal Aviation Administration 

Engine & Propeller Directorate Rulemaking and Policy, ANE-111 

12 New England Executive Park 

Burlington, MA 01803 

781-238-7130 

Drexel Ace 

From: 

Version 2.0 attached for your review I concurren ... 

Drexel Ace/ANE/FM 

ANE-11 0, Standards Staff 

12104/2012 01:43:07 PM 

To: 

Cc: 

Frederick Zink/ANE/FM@FM, Tara Fitzgerald/ANE/FM@FM, Dale Johnson/ANE/FM@FM, 

John Golinski/ANE/FM@FM, Paul Donato/ANE/FM@FM 

Date: 

Subject: 

12/04/2012 01:43 PM 

ACTION BY 12/10/2012: 12-NE-19-AD, Turbomeca S.A., Gas Generator Rear Bearing, Final rule--

Version 2.0 

Version 2.0 attached for your review I concurrence. 

This is a Final Rule After Notice, based on MCAI I EASA AD. 

Thanks. 

--Drexel 

[attachment "12ne19f.doc" deleted by Tara FitzgeraldiANEIFAA] 

Drexel Ace 

Technical Writer-Editor 

Federal Aviation Administration 

Air Certification Service 

Engine & Propeller Directorate Standards Staff, ANE-11 0 

Burlington, MA 

Phone: 781-238-7197 
' ' 

Drexel, 

Re: ACTION BY 12/10/2012: 12-NE-19-AD, Turbomeca S.A., Gas Generator 

Rear Bearing, Final rule --Version 2.0 bfj· 

Dale Johnson 

AEA-BOS-AEG-67, Burlington, MA to: Drexel Ace 12/04/2012 02:08PM 

Cc: Frederick Zink, John Golinski, Paul Donato, Tara Fitzgerald 

AEG concurs with version 2.0 of this AD 

Regards, 

Dale 

Dale Johnson 

Boston AEG 

781-238-7894 

We value your comments, please fill out the form below: 

http://www.faa.gov/about/office_org/headquarters_offices/avs/stakeholder_feedbacklafs/field/sf_aeg