### 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. O NCU RR ENCES OU TI NG SY M BO L ANE-IIOTW

I N ITI AL S / SUR NA ME VB e nn ett/D A

OUT I NG SYMBO L ANE-111
IN ITI ALS/ SU RNAME TFi tzge ra ld/ D A
DATE 3 /20/ 13

I N ITI A L S / SU RNAME 

# 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 Fro m : To: Cc: Vincent Bennett t D 1A A NE -00 7 , Offi ce of Regi o nal Coun se l o: rexe ce Cc: Sanjana Murthy, John Golinski, Jonathan Galvin , James E Gray

Hi Vi n ce , A revised Ve rsion 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

Su bj ect: 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 1000-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 i ncl.
.. Drex : sot·ry :

### nicett**.** includethe co st ofone100
. . .

.... -···-····-···-·-· --. ... ...... .. .. . ... .... . . . .... . - . Hi V in ce,\{ersion 3.1 is attached fo r your review:.. With c omments . R , V Hi Vi nce , Please see Vers ion 3
.0 , which is attac ... 04/04/2 01 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 

# ··.·. 0 31 25/2013 0 2

:16: 4 6 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 1 ng a n 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 F rom: To : Plea se 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/FAA@F AA, 03/20/2013 01 :50PM

03/ 19/2013 02:24:40 PM

Cc: Date: John Golinski/ANE/FAA@FAA, Jonathan Galv i n/ANE/FAA@FAA, James E Gray/ANE/FAA@FAA 03/19/2013 02:24PM Subj ect: 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- AE G-67, Bu rling to n . M A 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: Ple ase find Version 2
. 0 , which is attach e d for yo ... Dre xel Ace/ ANE / FAA ANE-11 0 , Standards Staff Sanjana Murthy/ANE/FAA@FAA , Joseph R White/ANE/FAA@FAA, Tara Fitzgerald/AN ElFAA@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 Su b j ec t: 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 h ere !