[4910-13-P] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket N o. FAA -2014-0386; Directora te Identifier 2014 -NE -09-AD ; Amendment 39-17897; AD 2014 - 12-52] RIN 2120-AA64 Ainvorthine ss Directives; Honeywell Int e rnational Inc . (Type C ertificate pre viously held by Alli e d S ignal Inc., Garrett Turbin e En g ine Compan y) Turbofan E ngines AGE N C Y : Federa l Aviatio n Admin istratio n (FAA), D OT. ACTION : Fina l r u le; re q uest for comments. SUMMARY: We are s up ers edin g emerge ncy a irw o rthin ess directive ( A D) 2 0 14-12- 52 for all Honeyw e ll Internati o nal In c. T F E73 1 -4,

- 4 R , - 5AR,

- 5 BR , -5R, -20 R , -2 0AR,

- 20 BR , -40 , -40AR , -40R,

- 4 0B R, -50 R , and -60 turbofan engi nes. Emergency AD 2014

- 12

- 52 was se nt previo u s ly to all known U.S. owner s a nd operators of these engi nes. AD 20 1 4-12-52 require d , befo re further flight, a rev iew of the engin e log b oo k mainten a n ce reco r ds to de t e rmin e if any affected e n gin es are in stall ed. A D 2 014-1 2

- 52 al so p rohibited o peratio n o f an airpl ane with two or mor e affecte d e ng in es th at have 2"d
s tage l ow-press ure turb ine (LPT2) bla des with less than 250 operating hours sin ce n ew. This AD retains the req u irement s of AD 2014 -1 2-52 and clarifies the i nte nt oft h e mandatory require me nts
. T h is AD was p rompted by reports of LPT2 blade separat i ons. We are i ss uin g thi s AD t o preve nt LP T 2 b lade fai lu re, mu ltip le e ng in e in-fli gh t
s hutdown s, a nd damage t o th e airpl ane. DATES: T h is AD i s effecti ve [ INSERT DATE 15 DAYS AF TER D ATE OF PUBLI CA TI ON IN THE FED ERA L R EGISTER]. We must rece i ve comments on this AD by [INSER T DATE 45 D AYS AFTER DA T E OF PUBLICA TJO N IN T HE FEDERA L REG I S T ER].ADDRESSES: You may sen d comm e nt s, u s in g the procedures found in 14 CFR 11.4 3 and 11.45 , by any of the following m e thod s :
• Federal eRul e making Portal: Go to http: //www.regulation s.gov. Follow the in s truction s for sub mittin g comments.
• Fax: 202- 4 93 -225 1

. • M a il: U.S. Department of Tra n s p o rtation , Docket Operation s, M-30 , West Buildin g Grou nd F l oor, Room W12

- 1 40, 1200 New Jersey Avenu e SE., Washington , DC 20590.

• Hand Delivery: Deliver to Mail add r ess above between 9 a.m. and 5 p.m. , Monday throu gh Fr iday, except Fede ral ho lid ays. For serv ice information id e ntified in this AD , contact Honeywe ll International Inc. , 111 S. 34 111 Street, Phoenix , AZ 85034-2802; phone: (800) 60 1 -3099; Inte rnet: http: //w ww.my ac ro s pace.com. You m ay view this serv ic e information at the FAA , Engine & Prop e ll er Dir ectorate, 12 New En gland Execu ti ve Park , Burlington, MA. For informa tion on the a va ilabili ty of thi s m ate r ia l at the FAA, call (78 1) 238- 7125. Examining the AD Docket You may examine the AD docket on the In te rnet at http ://www.reg ulations. gov by
searc hin g for and locating D ocket No. F AA-20 14-0 386; or in perso n at the Docket Operation s Office between 9 a.m. and 5 p. m. , Mo nday throu g h Friday, except Federal hol idays . The AD d oc ket c ontains this AD , the regu l ato ry evaluation, any comments receiv ed, and other information. Th e street address for the D ocket Operations Office ( phone: 800-647-5527) is in th e ADDRES SES sec tion. Commen t s w ill be ava ilabl e in th e AD dock et short ly aft e r receipt. FOR FURTHER INFORMATION CONTACT: J oseph Co sta, Aeros pace E ngineer , Los An geles Ai rcraft Ce rtification O ffice , FAA , Transport Airp lane Directorate, 3960

2P aramou nt B lvd., Lakewood, CA 90712-4137; phone: 562-627 -5 246; fax: 562 -627- 52 1 0; email: jose ph. costa @ faa.gov

. 

### SUPPLEMENTARY INFORMATION : Di sc u ss ion On June 10 , 20 1 4 , we issued E mergency AD 20 14-12-52, wh ich requ ir es, before further flight, a review of the e ng ine logbook maintenance records to determine if any affecte d e ngines are in stall ed. Emergency AD 2014-1 2-52 a lso req u ired for two

-eng in e airplanes or for three-e n g ine airplanes , that have two or more engines in stalled w ith LPT2 blades installed that have less t h an 250 operating hours since new, remove all affected
e n gi nes before further flight. Emergency AD 2014-12-52 was sent previously to all known U.S. owners and operators of these TFE731-4, -4R, -5AR, -5BR, -5R, -20R, -20AR, -20BR, -40 , -40AR, -40R, -40BR , -50R, and -60 turbofan eng in es. This action
was prompted by reports of LPT2 blade separations. Anal ys i s i ndicates the presence of casting a nomali es at o r n ea r the root of th e LPT2 bl a d e. This conditi o n , if not corrected, could result in LP T2 blade failure , multiple engine i n- flight shutdowns, a nd damage t o t h e airplane. We are supe rseding Emergency AD 20 1 4-12-52 to clarify the intent of paragraphs (e) and (f) of this AD. 

### Relevant Serv ice Information We reviewed H oneywell Alert Service B ulle tin (ASB) No. TFE73 1 -72

- A3792 , dated Jun e 5, 2014; ASB No. TF E73 1 -72-A5242 , dated June 5, 2014; and ASB No. TFE73 1- 72

- A5243, dated June 5, 20 14

. The serv ice in formation d esc ri bes procedure s for identifying affected engin es an d fo ll ow-on actions. 

### FAA's Determinat ion We are issuing thi s AD b ecause we evaluated a ll the re l evant inf ormation and determined the unsafe condition described prev ious ly is like ly to exist or deve lop in other products of the same type design.
3

### AD Requirement s This AD requires, before further flight, a review of the engine logbook maintenance records to determine if any affected engines are installed. If any affected engines are in stalled , then this AD prohibits operation of an airplane with two or more affected engines that have LPT2 blades with less than 250 operating hours since new. 

### Differences Between This AD and tbc Service Information Paragraphs (e)(2) and (e)(3) of thi s AD require that certain affected eng ines be removed before further flight. Honeywell ASB No. TFE731-72-A3792, dated June 5, 20 14 ; ASB No. TFE731

- 72-A5242 , dated June 5 , 20 14 ; and ASB No. TFE731-72- A5243, d ated June 5 , 2014 , for airplanes having only one affected engine installed, require no action at this time and may continue operation. 

### Interim Action We consider this AD to be an interim action. We anticipate that further AD action wi ll follow. 

### FAA's Determination of the Effective Date An unsafe condition exists that requ ires the immediate adoption of this AD. The FAA has found that the ri sk to the flying public justifies waiving notice and comment prior to adoption of this rule because of comp lianc e requirement before further flight. Therefore , we find that notice and opportun ity for prior public comment are impracticable and that good cause exists for making this amendment effective in l ess than 30 days. 

### Comments Invited This AD i s a final rule that involves requirements affecting flight safety and was not preceded by notice and an opportunity for public comment. However, we invite you to send any written data, views, or arguments about this AD. Send you r comments to an address listed under the ADDRESSES section. Include "Docket No. FAA-20 14-0386; 4Directorate Identifier 201 4

-NE-09-AD" at the beginning of your comme n ts. We
s pec i fically inv ite comments on the overall regu latory, econom i c, e nviro nm ental, and energy aspects of this AD. We will consider all comments rece ived by the closi n g date and may amend th i s AD because of those comments. We will post a ll comments we rec eive, without change, to http://www.regulations.gov , including any persona l information you provide. We will also post a report summari zing each substanti ve verbal co n tact we rece ive abo ut thi s AD. 

### C o s t s of Co mpli an ce We estimate that this AD affects 50 eng ines installed on airp lanes of U.S. registry. We also estimate that it will take about 18 hours per e ngi ne to comp ly with this AD. The average labor rate is $85 per hour. Required parts cost about $0 per eng i ne. Based on th ese figures, we esti ma te the cost of this AD o n U.S. opera tors to be $76,500. A uthori ty f o r thi s R ul e makin g T i tle 49 of the United States Code spec ifies the FAA 's authority to issue rul es on aviati on safety. Subtitle I , sect i on 106 , describes the authority of the 

# r AA Administrator. Subtitle VII: Aviation Programs descr i be s in more detai l the scope of the Agency's autho r ity. We are issuing this ru lemaking under the authority described in Subtit le VII , Part A, Subpart III , Section 44701: " Gene ral requirements. " U nder that section, Congress charges the FAA with promoting safe fli ght of c iv il ai rcraft in a ir com merce by prescribing regulat ions for practices , methods , and procedures the Administrator finds necessary fo r safety in air commerce. This regu lation i s wit h i n the scope of t hat authority because it addresses an unsafe condition that is l ikely to exist or deve lop on products identified in thi s rulemaki ng action.

5

### Regulatory F indin gs This AD wi ll not have federalism implications under Exec utive Order 13132. Thi s AD will not have a substantial direct effect on the States, on the relat ionship between the national government and the States , or on th e distribution of p ower a nd r espo nsibilitie s among the vario u s levels of governmen t. For th e reasons di sc u sse d above, I certify that this AD: (1) I s not a "s ignificant regulatory act ion " under Executive Order 12866, (2) I s not a "significant rule " und e r DOT Regulatory Polic ies and Procedures (44 FR 110 34, February 26 , 1979 ), (3) Wi ll no t affect intrastate aviation in Alaska to the exte nt that it ju stifies making a regulatory distinction, and (4) Will not have a significant economic impact, positive or negative , on a substantial number of small entities und e r the c riteria of the Re g ulato ry Flexibi li ty Act. 

### List of Subjects in 14 CFR Part 39 Air tran sportation, Aircraft , Aviation safety, Incorporati on by refere nce, Safety. 

### Adoption of the Amendment Accordin g ly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: 

### PART 39

- 

### AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 co ntinu es to read as fo ll ow s : Authority: 49 U.S .C. 106(g) , 40113 , 44701. 

### § 39.13 [Amended] 2. The FAA amends§ 39.13 by adding the following new a irworthin ess directiv e 

### (AD ):



### 62014-12-52 Honeywell International Inc. (Type Certificate previously held by AlliedSignal Inc., Garrett Turbine Engine Company): Amendment 39- 17897 ; Docket No. FAA-2014-0386; Directorate Identifier 2014-NE-09-AD. (a) Effective Date Thi s A D i s effec tive [INSERT D ATE 1 5 DAYS AFTER DATE OF PUBLICATION TN THE FEDERAL R EG ISTER]. (b) Affected ADs Thi s AD supe rse des Emergency AD 2014-12 -52 , Directorat e Id e ntifier 2014

-NE09-AD, dated Jun e 1 0,2014. (c) Applicability This AD applies to a ll Honeyw e ll Inte rnational Inc. TFE731-4 , -4R , -5AR , -5BR, -5R, -20R, -20AR, -20BR, -40, -40AR, -40R, -40BR, -50R, and -60 turbofan engines with 2"d stage low-pre ss ure turbine (LPT2) blades , part number (PIN) 3075424-1, -2 , or -3, in s talled

. (d) Unsafe Condition Thi s AD was prompted by reports of LPT2 blade separations. Ana lysis indicates the presence of castin g anomalies at or near the root of the LPT2 blade. We are issuin g this AD to prev e nt LPT2 blade failure , multiple e ngine in -fli ght shutdowns, and damage to the airplane. (e) Compliance Comply with this AD within th e compliance times specified , unl ess already done. (I) Before further flight , review engine logbook maintenance r ecords to determine if any engine i s in s ta ll ed that has LPT2 blade , 

### PIN 3075424-1 , -2 , or -3, installed w ith less than 250 ope ratin g hours since new on the bl a de.

7(2) For two-engine airplanes that have two engines with LPT2 blades installed that have less than 250 operating hours s in ce new , remove all affected engi ne s before further flight. (3) For three-engine airplanes that have two or more engines with LPT2 blades installed that have le ss than 250 ope rating hours since new, remove all affected engines before further flight. (4) After the effective date of this AD , do not install any engine that has installed in it LPT2 blades , 

### PIN 3075424-1, -2 , or -3 , that have less than 250 operating hours since
new. (f) Special F light Permit Special flight permits are permitted for one over-land ferry flight to a maintenance facility where engines can be removed. (g) Alternative Methods of Compliance (AMOCs) The Manager, Los Ange l es Aircraft Certification Office , FAA , may approve AMOCs for thi s AD. Use the procedures found in 14 CFR 39.19 to make your request. (h) Related Information (1) For more information about this AD , contact Jo sep h Costa, Aerospace Engineer, Los Angeles Aircraft Certification Office , FAA, Transport Airplane Directorate , 3960 Paramount Blvd. , Lakewood , CA 90712-4137 ; phone: 562-627

- 5246 ; fax: 562-627-521 0 ; email: joseph.cost a@faa.gov. (2) Honeywell International Alert Service Bulletin (ASB) No. TFE731-72

- A3792 , dated June 5, 2014; ASB No. TFE731-72-A5242 , dated June 5, 2014; and ASB No. TFE731-72-A5243 , dated June 5, 2014 , whic h are not incorporated by reference in this AD, can be obtained from Honeywell Intemationallnc., using the contact information in paragraph (h)(3) of this AD.



### 8(3) For service information identified in this AD , contact Honeywell International Inc. , 111 S. 34 1 h Street , Phoenix , AZ 85034-2802; phone: 800-60 1- 3099; Internet: h ttp://www .myaerospace.com. ( 4) You may view this service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington , MA. For information on the
ava il abi li ty of this material at the FAA , call 781-238-7125.

Issued in Burlington , Massachusetts , on July 7, 2014.

Ann C. Mollica, Acting Assistant Directorate Manager, Engine & Propeller Directorate, Aircraft Certification Service.

9