Version 3.2 (2/7/13) [4910-13-P] 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA-2012-1331; Directorate Identifier 2012-NE-44-AD] 

RIN 2120-AA64 

Airworthiness Directives; Rolls-Royce (1971) Limited, Bristol Engine Division 

Turbojet Engines 

AGENCY: Federal Aviation Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking (NPRM). 

SUMMARY: We propose to adopt a new airworthiness directive (AD) for all RollsRoyce (1971) Limited, Bristol Engine Division (RR) Viper Mk. 601-22 turbojet engines. 

This proposed AD was prompted by a review carried out by RR of the lives of certain 

critical parts. This proposed AD would require reducing the life of these parts. We are 

proposing this AD to prevent life-limited part failure, damage to the engine, and damage 

to the airplane. 

DATES: We must receive comments on this proposed AD by [Insert date 60 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 and follow the 

instructions for sending your comments electronically. 

• Mail: U.S. Department of Transportation, 1200 New Jersey Avenue SE., West 

Building Ground Floor, Room W12-140, Washington, DC 20590-0001. 

ONCURRENCES 

ROUTING SYMBOL 

ANE-110 

INITIALS/ SURNAME 

VBennett/DA 

DATE 

2/11 113 

OUTING SYMBOL 

ANE-lll 

INITIALS/ SURNAME 

TFitzge ra1d/DA 

ATE 

1/ 10/ 13 

OUTING SYMBOL 

AEG 

INITIALS/ SURNAME 

RLove/DA 
Re: ACTION BY 2/12/2013: 12-NE-44-AD, Rolls-Royce (1971) Limited, Bristol 

Engine Division Turbojet Engines, NPRM -- Version 3.2 ~ 

Vincent Bennett t D I A 02/11/2013 10 37 AM ANE-007, Office of Regional Counsel o: rexe ce : 

Cc: Robert Green, John Golinski, Paul Donato, James E Gray 

Tis a beautiful thing, a simple clear rule. 

Legal concurs. 

regards, 

VB 

Drexel Ace 

From: 

To: 

. Hi Vince, Version 3.2 is attached for your review .. . 

Drexel Ace/ANE/FAA 

ANE-110, Standards Staff 

Vincent Bennett/ANE/FAA@FAA, 

02/11/2013 08:48: 30 AM 

Cc: Robert Green/ANE/FAA@FAA, John Golinski/ANE/FAA@FAA, Paul Donato/ANE/FAA@FAA, 

James E Gray/ANE/FAA@FAA 

Date: 02/1 1/2013 08:48AM 

Subject: ACTION BY 2/12/2013: 12-NE-44-AD, Rolls-Royce (1971) Limited, Bristol Engine Division Turbojet 

Engines, NPRM -- Version 3.2 

Hi Vince, 

Version 3.2 is attached for your review I concurrence. 

Please see rework (highlighted in yellow) in "Costs of Compliance" and "Actions and Compliance" 

sections. 

Thanks. 

--Drexel 

12ne44n.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 

Drexel Ace 

Rqger _H Lqve 

Vincent Bennett 

Roger H Love 

Drex: If that's all that changed then I'm returning .. . 

. Hi Vince, Version 3.2 is attached for your review ~ .. 

Vince, All we have is the registry to rely on and ... 

Looks like it will probably be an NP, unless they ... . ... . 

Bob and Drexel, I just read my earlier e-mail (bel. .. 

01/31/2013 03:55:1 0 PM 

01/31 /2013 03:05:02 PM 

01/24/2013 08:59:27 AM 

01/24/2013 08:42:30 AM 

01/24/2013 08:02:31 AM 
.. 

• 

Re: ACTION BY 1/11/2013: 12-NE-44-AD, Rolls-Royce (1971) Limited, Bristol 

Engine Division Turbojet Engines, NPRM -- Version 2.1 [;;n 

- Roger H Love . 

AEA-BOS-AEG-67, Burlington, MA to: Jonathan Galvm 01/11/2013 06:15AM 

C, Drexel Ace, James E Gray, John Golinski, Paul Donato, Robert 

,c. Green, Tara Fitzgerald 

I concur with the changes but I noticed the ASB was dated October 31 , 2012, see last page not November. 

Servk;e Bulletin 72-A20S.docx 

Roger H. Love 

Propulsion Specialist 

Boston Aircraft Evaluation Group (AEA-BOS-AEG-67) 

781-238-7891, fax 7898 

We value your comments, please fill out the form using the following link: 

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

Jonathan Galvin Drexel , A few comments and suggested change ... . 

From: 

To: 

Jonathan Galvin/ANE/FAA 

ANE-11 0, Standards Staff 

Drexel Ace/ANE/FAA@FAA 

01/10/201 3 01 :40:24 PM 

Cc: 

Date: 

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

Robert Green/ANE/FAA@FAA, Roger H Love/ANE/FAA@FAA, Tara Fitzgerald/ANE/FAA@FAA 

01/10/2013 01:40PM 

Subject: Re: ACTION BY 1/11/2013: 12-NE-44-AD, Rolls-Royce (1971) Limited, Bristol Engine Division 

Turbojet Engines, NPRM --Version 2.1 

Drexel, 

A few comments and suggested changes. You should rename the file also ("12ne44n"), 

[attachment "12ne44n.doc" deleted by Roger H Love/ANE/FAA] 

Jonathan Galvin 

Technical Writer-Editor 

Engine & Propeller Directorate Standards Staff, ANE-11 0 

Phone: 781-238-7759 

Fax: 781-238-7199 

Drexel Ace Hi All, Short fuse on this one, which is now unde ... 01/10/2013 12:05:23 PM 
Re: ACTION BY 1/11/2013: 12-NE-44-AD, Rolls-Royce (1971) Limited, Bristol 

Engine Division Turbojet Engines, NPRM --Version 2.1 Gil 

Tara Fitzgerald 

ANE 111 R I k

. d P 1. to: Drexel Ace 01/10/2013 02:32PM - , u ema mg an o 1cy 

Drexel, 

C James E Gray, John Golinski, Jonathan Galvin, Paul Donato, Robert 

c. Green, Roger H Love 

I concur with version 2.1 and I agree with Jon Galvin's suggested changes. 

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: 

Hi All , Short fuse on this one, which is now unde ... 

Drexel Ace/ANE/FAA 

ANE-11 0, Standards Staff 

01/10/2013 12:05:23 PM 

To: 

Cc: 

Robert Green/ANE/FAA@FAA, Roger H Love/ANE/FAA@FAA, Tara Fitzgerald/ANE/FAA@FAA, 

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

Jonathan Galvin/ANE/FAA@FAA 

Date: 

Subject: 

Hi All, 

01/10/2013 12:05 PM 

ACTION BY 1/1112013: 12-NE-44-AD, Rolls-Royce (1971) Limited, Bristol Engine Division Turbojet 

Engines, NPRM --Version 2.1 

Short fuse on this one, which is now undergoing another Version 2 review cycle. 

Because there are possible US operators, this AD is being converted from an NFR to an NPRM. 

Naturally, it is based on MCAI. 

Version 2.1 is attached for your review I concurrence. 

We are currently at 37 days. 

Thanks. 

--Drexel 

[attachment "12ne44f.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