DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA-2011-1037; Directorate Identifier 2011-NE-30-AD; Amendment 

17373 o5-o r 

39-XJGee(; AD 2013-~] 

RIN 2120-AA64 

Airworthiness Directives; Turbomeca S.A. Turboshaft Engines 

AGENCY: Federal Aviation Administration (FAA), DOT. 

ACTION: Final rule; request for comments. 

SUMMARY: We are superseding an existing airworthiness directive (AD) for all 

of certain serial number (SIN) N2 sensor harnesses. This AD requires replacement of the 

same SIN harnesses, and requires replacement of additional SIN N2 sensor harnesses. 

This AD was prompted by corrosion detected in affected N2 sensor harnesses. We are 

JNITI ALS/SIG 

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issuing this AD to prevent inadvertent activation of the 65% N1 back up mode, resulting ""oA=TE,-- · __.:;=c..:;....;:;..._ 

1211 4/ 12 

in N2 speed fluctuation, significant power loss, and emergency landing of the helicopter. ouTING SYMBOL 

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DATES: This AD is effective [INSERT DATE 15 DAYS AFTER DATE OF 

PUBLICATION IN THE FEDERAL REGISTER]. 

We must receive any comments on this AD by [INSERT DATE 45 DAYS 

AFTER DATE OF PUBLICATION IN THE FEDERAL REGISTER]. 

ADDRESSES: You may send comments by any ofthe following methods: 

• Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: 202-493-2251. 
Re: ACTION BY: 12/18/12- 2011-NE-30-AD- Turbomeca S.A. Turboshaft 

Engines N2 Sensor Harness Replacement -Version 2.0 Cl! 

Joseph R White . AEA-BOS-AEG-67, Burlington, MA to Bnan Warner 12/14/2012 06:01AM 

C Alan Rowe, James E Gray, John Golinski, Paul Donato, Rose Len, 

c. Tara Fitzgerald 

Good morning, 

Based on the conversation and email from Rose, I will concur with Version 2 as proposed. 

Best regards, 

Joe White 

Boston AEG EA-67 

Federal Aviation Administration 

Tel (781) 238-7897 

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

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

Brian Warner Rose, Please address Joe's questions below. 1. .. 

From: 

To: 

Brian Warner/ANE/FAA 

ANE-11 0, Standards Staff 

Rose Len/ANE/FAA@FAA 

12/13/2012 08:48:06 AM 

Cc: 

Date: 

Alan Rowe/ANE/FAA, James E Gray/ANE/FAA@FAA, John Golinski/ANE/FAA, Paul 

Donato/ANE/FAA@FAA, Tara Fitzgerald/ANE/FAA@FAA, Joseph R White/ANE/FAA@FAA 

12/13/2012 08:48AM 

Subject: 

Rose, 

Re: ACTION BY: 12/18/12- 2011-NE-30-AD- Turbomeca S.A. Turboshaft Engines N2 Sensor 

Harness Replacement - Version 2.0 

Please address Joe's questions below. I know we discussed, and you verified , that the S/Ns need to be 

listed as 'inclusive', but I didn't want to misquote you in replying directly. 

Please call if you want to discuss Joe's 2nd question IRT the calendar requirement. 

Thanks ... 

Brian 

Brian M. Warner 

Federal Aviation Administration 

Engine and Propeller Directorate 

Standards Staff, ANE-11 0 

Technical Writer I Editor 

12 New England Executive Park 
Re: ACTION BY: 12/18/12 - 2011-NE-30-AD - Turbomeca S.A. Turboshaft 

Engines N2 Sensor Harness Replacement- Version 2.0 [) 

Tara Fitzgerald . 

ANE 111 R I k

. d P 1

. to· Bnan Warner 12/14/2012 11 :36 AM - , u ema mg an o 1cy 

C . Alan Rowe, James E Gray, John Golinski, Joseph R White, Paul c. Donato, Rose Len 

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 

Brian Warner All: Please review and provide comment I concu ... 

From: Brian Warner/ANE/FAA 

ANE-11 0, Standards Staff 

12/13/2012 06:24:31 AM 

To: 

Cc: 

Rose Len/ANE/FAA@FAA, Joseph R White/ANE/FAA@FAA, Tara Fitzgerald/ANE/FAA@FAA, 

James E Gray/ANE/FAA@FAA, Paul Donato/ANE/FAA@FAA, Alan Rowe/ANE/FAA, John 

Golinski/ANE/FAA 

Date: 

Subject: 

All : 

12/13/2012 06:24AM 

ACTION BY: 12/18/12- 2011-NE-30-AD- Turbomeca S.A. Turboshaft Engines N2 Sensor Harness 

Replacement- Version 2.0 

Please review and provide comment I concurrence. 

[attachment "11 ne30is.doc" deleted by Tara Fitzgerald/ANE/FAA] 

Thanks ... 

Brian 

Brian M. Warner 

Federal Aviation Administration 

Engine and Propeller Directorate 

Standards Staff, ANE-11 0 

Technical Writer I Editor 

12 New England Executive Park 

Burlington, MA 01803 

781-238-7169 

brian.warner@faa.gov 
~~~ ·.·. ' Re: ACTION BY: 12/24/12- 2011-NE-30-AD- Turbomeca Makila 1A2 

Turboshaft Engines N2 Sensor Harness Replacement. Final Rule 

Supersedure - Ver 3.4 QJ 

Vincent Bennett . ANE-007, Office of Regional Counsel to. Bnan Warner 02/20/2013 12:38 PM 

Cc: Alan Rowe, James E Gray, John Golinski, Paul Donato 

Legal concurs. 

Thanks for the assist. 

Regards, 

VB 

Brian Warner Vince, This version is based on the meeting you ... 

From: 

To: 

Brian Warner/ANE/FAA 

ANE-11 0, Standards Staff 

Vincent Bennett/ANE/FAA@FAA, 

02/20/2013 09:37:54 AM 

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

Alan Rowe/ANE/FAA@FAA 

Date: 

Subject: 

Vince, 

02/20/2013 09:37 AM 

ACTION BY: 12/24/12- 2011-NE-30-AD- Turbomeca Makila 1A2 Turboshaft Engines N2 Sensor 

Harness Replacement. Final Rule Supersedure - Ver 3.4 

This version is based on the meeting you had with Paul and James on Tuesday morning, James made 

one additional change to paragraph e.5. by reversing the order in which the c(1) and c(2) populations are 

presented. Changes are in yellow highlight. Please review and provide comment I concurrence. 

11 ne30is.doc 

Thanks ... and thank you again for getting the team together for yesterday's discussion. 

Brian 

Brian M. Warner 

Federal Aviation Administration 

Engine and Propeller Directorate 

Standards Staff, ANE-110 

Technical Writer I Editor 

12 New England Executive Park 

Burlington, MA 01803 

781-238-7169 

brian.warner@faa.gov 

Click here to send us your feedback: 

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