### Version 3.1 (3118113) [4910-13-P] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2013-0195; Directorate Identifier 2013-NE-08-AD] RIN 2120-AA64 Airworthiness Directives; General Electric Company Turbofan Engines AGENCY : Federal Aviation Administration (FAA) , DOT. CONCU RRE NCES RO UT I N G SY MBOL ANE- 110

RO UT I NG SYMBOL ANE-141



### ACTION: 

### Notice of proposed rulemaking (NPRM).

# ex~ SUMMARY: We propose to adopt a new airworthiness directive (AD) for all

# Ge**~·~ l** **W:il'~ --** **""** Electric Company (GE) model GEnx-2B67 and GEnx -2B67B turbofan engines with booster anti -i ce (BAI) a ir duct , part number (PIN) 2469M32G01 , and support bracket , I N ITI ALS/ SU R NA/\ I E VBen nett/DA 

### P/N 2469M46GO 1 , in stall ed. Th i s proposed AD was prompted by reports of cracks in the b=,..---- D ATE 3/26/13 

### BAI air duct. This proposed AD wou ld require initial and repetitive visual inspections of 

## "==.,.,..,=-- Ro u T I NG S YM BOL 

### the BAI air duct , removal from serv ice ofthe BAI air duct if it fai ls inspection and , as a mandatory terminating action , the installation of new BAI air duct support brackets. We are proposing this AD to prevent failure of the BAI air duct , resulting in an in-flight shutdown of one or more eng ines , loss of thrust control , and damage to the aircraft. 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 , using the procedures found in 14 CFR 11.43 and 11.45 , by any of the following methods: • Federal eRulemaking Portal: Go to http: //www.regulat ions . gov . Follow the instructions for submitting comments. • Fax: 202

-493-2251. ANE-111
I NITI ALS / SU RNAME AMo lli ca/ DA
D ATE 3/4 / 13
RO UT I N G SYMBOL AEG
I N I TIALS/ SU R NAME POLeary f or DLeve squ e / DA DATE 3/ 1113
ROUTING SY MBOL ANE- 110 

### SN.Pft1

### Re: SUPERSEDES PRIOR ACTION EMAIL-- ACTION BY 3/21/2013: 13-NE-08, General Electric Company Turbofan Engines, NPRM -- Version 3.1 

# La

Drex, Legal concurs . Regards , Vince Drexel Ace From: To : Vincent Benne tt t D 1A ANE-007 , Office of Regional Co un se l 0 · rexe ce Cc: James E Gray , Jason Yang , John Golinski , Jonathan Galvin

Hi Vi nce, I understand you have been rev i ewing
... Drexel Ace/ANE/FM ANE-11 0 , Standards Staff Vincent Bennett/ANE/FM@FM , 03/26/2013 04:07 PM

03/21/2013 02:10 :1 6 PM

Cc: Jason Yang/ANE/FM@FM, James E Gray/ANE/FM@FM , John Golinski/ANE/FM@FM , Jonathan Galvin/ANE/FM@FM Dat e: S ubj ect:
Hi Vince , 03/21/2013 02 : 10PM SUPERSEDES PRIOR ACTION EMAIL-- ACTION BY 3/21/2013 : 13-NE-08 , General Electric Company Turbofan Engines , NPRM --Version 3
. 1

I understand you have been reviewing 13-NE-11 , a sister to this AD
. Based on your conversations with James Gray and Jason Yang on that AD , we are revising the unsafe condition statement in this AD
. Please act on this version and disregard prior action email. Prior email trail is below. Updated unsafe condition language is highlighted in this attached updated Version 3
. 1 of 13-NE-08. There are no other changes from the prior version I sent you and to which you have not yet replied
. Thanks.

- - Drexel

13ne08n
. 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 !

### Re: Fw: ACTION BY 3/5/2013: 13-NE-08, General Electric Company Turbofan Engines, NPRM -- Version 2.3**~** Peter O'Leary AEA-BOS -AEG-6 7, Bu rlington , MA to: Bob Barnes Cc: David Dubuc, Donald Levesque , Drexel Ace AEG concurs with Version 2
. 3 for NPRM 2013-NE-8-AD
.



### Peter C. O'Leary Aviation Safety Inspector Propulsion Specialist 12 New England Executive Park Burlington , MA 01830 781-238-7890 781-238-7898 fax 781-439-5974 cell " Common sense is genius dressed in working clothes" Ralph Waldo Emerson We value your comments , please fill out the form below : 03/01/2013 03:20PM



### http: //www .faa.gov/about/office
_org/headquarters
_offices/avs/stakeholder
_feedback/afs/field/sf
_ aeg/

Bob Barnes From : To: Cc : Date: Su b j ect:
Peter , Pete r , Could you please review and re spond for
... Bob Barnes/ANE/FAA AEA-BOS-AEG-67 , Burlington, MA Peter O'Leary/ANE/FAA@FAA , 03/01/2013 12:4 8 : 41 PM

Donald Levesque/ANE/FAA@FAA, David Dubuc/ANE/FAA@FAA , Drexel Ace/ANE/FAA@FAA 03/01/2013 12:48 PM Fw : ACTION BY 3/5/2013 : 13-NE-08, General Electric Company Turbofan Engines, NPRM -- Version 2
. 3

Could you please review and respond for the AEG , thanks. Bob Barnes Manager, Boston AEG EA-67 Federal Aviation Administration

### Re: Fw: ACTION BY 3/5/2013: 13-NE-08, General Electric Company Turbofan Engines, NPRM -- Version 2.3 

# l£:l

I concur . Ann C
. Mollica Ann Mollica to: Drexel Ace ANE-111 , Ru l emaking and Pol icy Cr: Jason Yang



### FAA, Engine and Propeller Directorate Standards Staff, Rulemaking and Policy Branch 781.238.7192 

### We value your feedback
. C lick here to send f eedback
. Drexel Ace From: T o: Date : 

### H ere you go , Ann
. Drexel Ace Drexel Ace/ANE / FAA ANE-11 0 , Standards Staff Ann Mollica/ANE/FAA@FAA , 03/04/2013 01 : 51 PM 03/04/2013 01 :53 PM



### 0 3/04/2 013 01 :5 1:44 PM

Subject: Fw : ACTION BY 3/5/2013 : 13-NE-08 , General Electric Company Turbofan Engines , NPRM -- Version 2
. 3 

### Here you go, Ann
. 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 e re !

----- Forwa rded by Drexe l Ac e/A N E/ FAA on 03/04 /2 01 3 01 :5 0PM-- -- - Fro m: To: Cc: Date : Subject: Drexel Ace/ANE / FAA ANE - 11 0 , Standards Staff Jason Yang/ANE/FAA@FAA , Bob Barnes/ANE/FAA@FAA , Ann Mollica/ANE/FAA@FAA , John Golinski/ANE/FAA@FAA, Paul Donato/ANE/FAA@FAA , James E Gray/ANE/FAA@FAA , Donald Levesque/ANE/FAA @ FAA , David Dubuc/ANE/FAA@FAA 03/01/2013 12:45 PM ACTION BY 3/5/2013 : 13-NE-08 , General Electric Company Turbofan Engines , NPRM --Version 2
. 3 

### Please see Version 2
. 3 , which is attached for your review 

### I concurrence. Thanks to Don Levesque and Dave Dubuc for your comments on Version 2
. 2 -- latest changes simplify Mandatory Terminating Action. Thanks
.

- -Drexel