ONCURRENCES 

Version 3.0 (January 18, 2013) [4910-13-P] ~; ~~M oL 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA-2012-0942; Directorate Identifier 2012-NE-24-AD; Amendment 

173 55 a.2-.;;J 39-~; AD 2013-.)..K-.XX] 

RIN 2120-AA64 

Airworthiness Directives; Pratt & Whitney Canada Corp. Turboshaft Engines 

AGENCY: Federal Aviation Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new airworthiness directive (AD) for certain serial 

number Pratt & Whitney Canada Corp. PW206B, PW206B2, PW206C, PW207C, 

PW207D, PW207D1 , PW207D2, and PW207E turboshaft engines. This AD was 

prompted by the discovery that certain power turbine (PT) disks were made to specific 

heat codes that may not achieve the maximum in-service life. This AD requires reINITIALS/SIC 

VBennett/BW 

DATE 

0 1/30/ 13 

ROUTING SYMBOL 

identification ofthe PT disk to a part number (PIN) with a lower life limit. We are issuing EG 

this AD to prevent possible uncontained PT disk failure and loss of helicopter control. 

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

PUBLICATION IN THE FEDERAL REGISTER]. The Director of the Federal Register 

approved the incorporation by reference of a certain publication listed in this AD as of 

[INSERT DATE 35 DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL 

REGISTER). 

ADDRESSES: The Docket Operations office is located at Docket Management Facility, 

U.S. Department ofTransportation, 1200 New Jersey Avenue SE., West Building Ground oATE( 1 7 2--- 1!1 '7 

Floor, Room W12-140, Washington, DC 20590-0001. RouTINcsvMsoL 

IN IT IALS/SIG 

ATE 
Re: Fw: ACTION BY: 1/24/13- 2012-NE-24-AD- P&WC Turboshaft EnginesPower Turbine Disk Heat Codes. FR - Ver 2.1 [J 

Brian; 

John Keymont to· Brian Warner 

AEA-BOS-AEG-67, Burlington , MA . 

C . Alan Rowe, James E Gray, James Lawrence, John Golinski, Paul 

c. Donato, Tara Fitzgerald 

BOS-AEG concurs with 2012-NE--24-AD; versions 2.0 and 2.1 

Best regards; 

John 

John Keymont 

Aviation Safety Inspector 

Aircraft Evaluation Group 

12 New England Executive Park 

Burlington, MA 01803 

Phone: 781-238-7892 

Fax: 781 -238-7898 

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

01/17/2013 04:07 PM 

http://www. faa . gov/a bout/office_ org/headqua rters_ offices/avs/sta keholder _feedbacklafs/field/sf _ aeg/ 

f"""" 

Brian Warner All: Please note the FR citation number has bee .. . 01/17/2013 12:45:32 PM 

From: 

To: 

Cc: 

Date: 

Subject: 

All: 

Brian Warner/ANE/FAA 

ANE-11 0, Standards Staff 

James Lawrence/ANE/FAA@FAA, Tara Fitzgerald/ANE/FAA@FAA, John 

Keymont/ AEAIF AA@F AA, 

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

Rowe/ANE/FAA 

01/17/2013 12:45 PM 

Fw: ACTION BY: 1/24/13- 2012-NE-24-AD- P&WC Turboshaft Engines- Power Turbine Disk 

Heat Codes. FR - Ver 2.1 

Please note the FR citation number has been changed in the attached version. Changes are highlighted 

in yellow. We already had two out of three concurrences, but if you could please provide your 

concurrence again at 2.1 we will be off and running. 

[attachment "12ne24f.doc" deleted by John Keymont/AEAIFAA] 

Thanks .. . 

Brian 
Re: Fw: ACTION BY: 1/24/13- 2012-NE-24-AD- P&WC Turboshaft EnginesPower Turbine Disk Heat Codes. FR - Ver 2.1 [J 

James Lawrence . 

ANE 142 E · c ·f· . B h 142 to: Bnan Warner 01/17/2013 01 :15PM - , ngme ert1 1cat1on ranc 

Brian: 

I concur. 

Jim Lawrence 

C . Alan Rowe, James E Gray, John Golinski, John Keymont, Paul 

c. Donato, Tara Fitzgerald 

Tel: 781-238-7176 

Fax: 781-238-7199 

email : james.lawrence@faa.gov 

Brian Warner All: Please note the FR citation number has bee .. . 

From: 

To: 

Brian Warner/ANE/FM 

ANE-11 0, Standards Staff 

James Lawrence/ANE/FM@FM, Tara Fitzgerald/ANE/FM@FM, John 

KeymonUAEA/FM@FM, 

01/17/2013 12:45:29 PM 

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

Rowe/ANE/FM 

Date: 

Subject: 

All: 

01/17/201312:45 PM 

Fw: ACTION BY: 1/24/13- 2012-NE-24-AD- P&WC Turboshaft Engines- Power Turbine Disk 

Heat Codes. FR - Ver 2.1 

Please note the FR citation number has been changed in the attached version. Changes are highlighted 

in yellow. We already had two out of three concurrences, but if you could please provide your 

concurrence again at 2.1 we will be off and running. 

[attachment "12ne24f.doc" deleted by James Lawrence/ANE/FAA] 

Thanks ... 

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 
Re: Fw: ACTION BY: 1/24/13- 2012-NE-24-AD- P&WC Turboshaft EnginesPower Turbine Disk Heat Codes. FR - Ver 2.1 [J 

Tara Fitzgerald . . ANE-111 , RulemakingandPolicy to. BnanWarner 01/17/201302:19PM 

Cc: Alan Rowe, James E Gray, James Lawrence, John Golinski, John 

Keymont, Paul Donato 

Brian, 

I 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 'Ail: Please note the FR citation number has bee ... 

From: 

To: 

Brian Warner/ANE/FAA 

ANE-11 0, Standards Staff 

James Lawrence/ANE/FAA@FAA, Tara Fitzgerald/ANE/FAA@FAA, John 

Keymont/ AEAIF AA@F AA, 

01/17/20 13 12:45:29 PM 

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

Rowe/ AN E/F AA 

Date: 

Subject: 

All: 

01117/201312:45 PM 

Fw: ACTION BY: 1/24113- 2012-NE-24-AD- P&WC Turboshaft Engines- Power Turbine Disk 

Heat Codes. FR- Ver 2.1 

Please note the FR citation number has been changed in the attached version . Changes are highlighted 

in yellow. We already had two out of three concurrences, but if you could please provide your 

concurrence again at 2.1 we will be off and running. 

[attachment "12ne24f.doc" deleted by Tara Fitzgerald/ANE/FM] 

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 
Fw: ACTION BY: 1/25/13- 2012-NE-24-AD- P&WC Turboshaft EnginesPower Turbine Disk Heat Codes. FR - Ver 3.0 

James Lawrence t AI R 

ANE-142, Engine Certification Branch 142 o: an owe 

Jim Lawrence 

Tel: 781-238-7176 

Fax: 781-238-7199 

email: james.lawrence@faa.gov 

-----Forwarded by James Lawrence/ANE/FAA on 02/04/2013 09:29AM-----

From: 

To: 

Vincent BennetUANE/FAA 

ANE-142, Engine Certification Branch 142 

Brian Warner/ANE/FAA@FAA, 

02/04/2013 09:29 AM 

Cc: Alan Rowe/ANE/FAA@FAA, James E Gray/ANE/FAA@FAA, James Lawrence/ANE/FAA@FAA, 

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

Date: 

Subject: 

Legal concurs. 

Regards, 

v 

01/30/2013 03:09PM 

Fw: ACTION BY: 1125/13- 2012-NE-24-AD- P&WC Turboshaft Engines - Power Turbine Disk 

Heat Codes. FR - Ver 3.0 

-----Brian Warner/ANE/FAA wrote:-----

To: Vincent Bennett!ANE/FAA@FAA 

From: Brian Warner/ANE/FAA 

Date: 01/18/2013 07:41AM 

Cc: Alan Rowe/ANE/FAA, James E Gray/ANE/FAA@FAA, James Lawrence/ANE/FAA@FAA, John 

Golinski/ANE/FAA, Paul Donato/ANE/FAA@FAA 

Subject: Fw: ACTION BY: 1/25/13- 2012-NE-24-AD- P&WC Turboshaft Engines- Power Turbine Disk 

Heat Codes. FR - Ver 3.0 

Vince, 

Please review and provide comment I concurrence. 

(See attached file: 12ne24f.doc) 

Thanks .. . 

Brian 

Brian M. Warner 

Federal Aviation Administration