Version 3.2 (4/5113) [4910-13-P) 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA-2012-1131; Directorate Identifier 2012-NE-34-AD; Amendment 

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

) '1lt l-JO ;)-})} 3 -./56'- ). d.. 

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 certain '-

Turbomeca S.A. Arriel lAl, 1A2, lB, IC, lCl , 1C2, lD, lDl , 1E2, lKl, IS, and lSI 

turboshaft engines. This AD requires daily post-flight checks of the engine tachometer's 

unit cycle-counting feature. This AD also requires ground-run functional checks within 

every 1 ,000 operating hours. This AD was prompted by detailed analysis and review of 

the accuracy of the engine's tachometer cycle-counting feature. We are issuing this AD t 

prevent uncontained engine failure and damage to the helicopter. 

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

PUBLICATION IN THE FEDERAL REGISTER]. 

U.S. Department of Transportation, 1200 New Jersey Avenue SE., West Building Groun 

Floor, Room Wl2-140, Washington, DC 20590-0001. 

ONCURRENCES 

OUTING SYMBOL 

ANE-IIOTW 

INITIALS/ SURNAME 

VBennett/DA 

OUTING SYMBOL 

ANE-111 

INITIALS/ SURNAME 

TFitzgerald/DA 

DATE 

3/20/ 13 

INITIALS/ SURNAME 

CD fl&l-l~! 
Re: ACTION BY 4/1/2013: 12-NE-34-AD, Turbomeca S.A., Tachometer, Final 

Rule -- Version 3.2 

Drex: 

Legal concurs. 

Regards, 

v 

Drexel Ace 

From: 

To: 

Cc: 

Vincent Bennett t D 

1 

A 

ANE-007, Office of Regional Counsel o: rexe ce 

Cc: Sanjana Murthy, John Golinski, Jonathan Galvin, James E Gray 

Hi Vince, A revised Version 3.2 (with new versio .. . 

Drexel Ace/ANE/FAA 

ANE-11 0, Standprds Staff 

Vincent Bennett/ANE/FAA@FAA, 

Sanjana Murthy/ANE/FAA@FAA, John Golinski/ANE/FAA@FAA, Jonathan 

Galvin/ANE/FAA@FAA, James E Gray/ANE/FAA@FAA 

Date: 04/05/2013 08:24AM 

04/05/2013 03:47PM 

04/05/2013 08:24:53 AM 

Subject: Re: ACTION BY 4/1/2013: 12-NE-34-AD, Turbomeca S.A., Tachometer, Final Rule-- Version 3.2 

--~-------------

Hi Vince, 

A revised Version 3.2 (with new version date of 4/5/13) is attached for your review I concurrence. 

We've included the cost of the 1 000-hour inspection in the estimated annual total costs of compliance. 

I've left the revision marks visible for you to see. 

Thanks. 

--Drexel 

12ne34f.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 

To send us your feedback, click here! 

Vincent Bennett 

Vincent Bennett 

Drex: This is the age old what you say can be us .. . 

Hi i~ ce , We took your C()mment to mean to incl. .. 

Drex: sot·ry: nicett . includethe cost ofone100 ... .... -···-····-···-·-· --. ... ...... .. .. . ... .... . . . .... . - . 

Hi Vince,\{ersion 3.1 is attached for your review: .. 

With comments. R, V 

Hi Vince, Please see Version 3.0, which is attac ... 

04/04/201 3 02:45:29 PM 

04/04/2013 09:55:05 AM 

04/03/2013 04:44:39 

03/28/2013 08:51:52 AM 

··.·. 03125/2013 02:16:46 PM 

03/21/2013 11:44:20 
Re: ACTION BY 3/25/2013: 12-NE-34-AD, Turbomeca S.A., Tachometer, 

Final Rule --Version 2.0 

Drexel, 

Tara Fitzgerald 

ANE 11 1 R I k

. d P 1

. to: Drexel Ace - , u ema 1ng an o 1cy 

C . James E Gray, John Golinski, Jonathan Galvin, Joseph R White, 

c. Sanjana Murthy 

I reviewed version 2.0 and concur. 

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: 

To: 

Please find Version 2.0, which is attached for yo .. . 

Drexel Ace/ANE/FAA 

ANE-11 0, Standards Staff 

Sanjana Murthy/ANE/FAA@FAA, Joseph R White/ANE/FAA@FAA, Tara 

Fitzgerald/ AN E/F AA@F AA, 

03/20/2013 01 :50PM 

03/19/2013 02:24:40 PM 

Cc: 

Date: 

John Golinski/ANE/FAA@FAA, Jonathan Galvin/ANE/FAA@FAA, James E Gray/ANE/FAA@FAA 

03/19/2013 02:24PM 

Subject: ACTION BY 3/25/2013: 12-NE-34-AD, Turbomeca S.A., Tachometer, Final Rule-- Version 2.0 

Please find Version 2.0, which is attached for your review I concurrence. 

This is a final rule after notice. 

Thanks. 

--Drexel 

[attachment "12ne34f.doc" deleted by Tara Fitzgerald/ANE/FAA] 

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 

To send us your feedback, click ll_~~! 
~ ..... 

Re: ACTION BY 3/25/2013: 12-NE-34-AD, Turbomeca S.A., Tachometer, 

Final Rule --Version 2.0 ~ 

Joseph R White 

AEA-BOS-AEG-67, Burlington. MA to. Drexel Ace 

C ,. James E Gray, John Golinski, Jonathan Galvin, Sanjana Murthy, 

,c. Tara Fitzgerald 

Hi Drexel, 

I concur with Version 2.0 

Regards, 

Joe White 

Boston AEG EA-67 

Federal Aviation Administration 

Tel (781) 238-7897 

03/20/2013 08:07AM 

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

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

Drexel Ace 

From: 

To: 

Please find Version 2.0, which is attached for yo ... 

Drexel Ace/ANE/FAA 

ANE-11 0, Standards Staff 

Sanjana Murthy/ANE/FAA@FAA, Joseph R White/ANE/FAA@FAA, Tara 

Fitzgerald/AN ElF AA@F AA, 

03/19/2013 02:24:39 PM 

Cc: 

Dale: 

John Golinski/ANE/FAA@FAA, Jonathan Galvin/ANE/FAA@FAA, James E Gray/ANE/FAA@FAA 

03/19/2013 02:24 PM 

Subject: ACTION BY 3/25/2013: 12-NE-34-AD, Turbomeca S.A., Tachometer, Final Rule-- Version 2.0 

Please find Version 2.0, which is attached for your review I concurrence. 

This is a final rule after notice. 

Thanks. 

--Drexel 

12ne34f.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 

To send us your feedback, click here!