DEPARTMENT OF TRANSPORTAT IO N Federal Aviation Adm ini stration 14 CFR Part 39 [4910-13-PJ

!Docket No. FAA-20 14-0940 ; Directorate Id entifier 2014-NE-15-AD; Ame ndm e nt 39-18162; AD 2015-10-06] RIN 2120-AA64 Ainvorthiness Directive s; Lycoming E n gines Reciprocating E ngines (Ty p e Certific ate previously held by Textron L yc oming Division, A VCO Corpo r atio n ) AGENCY: f-ederal Aviation Administration (FAA), DOT. A CT ION: Final rule. SUMMARY: We are adopting a new airworthiness direct ive (AD) for certain Lycoming TI0-540-AJ I A reciprocating engines
. Thi s AD was prompted by severa l reports of cracked eng in e exhau st pipes. Thi s AD requires insp ec tion of th e engine ex haust pipes for cracks and replacement of th e turbocharger mounting bracket. We are is s uing thi s AD to prevent fa ilure of th e exhaust sys tem due to c racking , wh ich cou ld lead to uncontrolled eng in e fire , harmful exhaust gases entering the cab in re s ulting in c rew incapacitation , and damage to the airp lan e. DATES: This AD is e ffective [INSER T DATE 35 DAYS AFTER DATE OF PUBLICATION TN T H E FEDERAL REGfSTER]. The Direct o r of the Fed e ral Reg is t e r approved the incorporation by ref e rence of a certain publication li sted in thi s AD as of [INSERT D ATE 35 DAYS AFTER DATE OF P U BLICAT ION IN THE FE DERAL REG ISTER]. ADDRESSES : For service information id e ntified in this AD , contact Lycoming Engines, 652 Oliver St reet , W illi a m sport, PA 17701 ; phone: 800-258- 3279; fax: 570-327-710 I ; Internet:
wvvw . l ycom ing.com/ Lyco min g/S U PP OR T/Tech ni cal Pub! ication s/Ser viceBu ll etins.aspx.Yo u m ay v i ew t hi s se rv ice in f o rm a tion a t th e FA A, E n g ine & Pr o p e ller D ire cto rate, 1 2 New E n g la n d Exec uti ve P ark, B urli ng ton , MA. Fo r i nformati on on the avai lab ili ty of th is m a t e ri a l a t th e FAA, ca ll 781

- 23 8

- 71 2 5. 

### 1t is al s o ava il ab le on th e Intern e t a t htt p ://www. regul ati o n s.gov b y sea r c hin g fo r a nd l oca ti ng D oc ket No
. FAA-20 14

- 0940. Exa minin g th e A D D oc k e t Y o u m ay exam in e th e AD d oc k e t o n th e Interne t a t http: //www .reg ulati ons.gov b y sea r c h i n g f o r a nd loca tin g Do c ke t No . FAA-2 0 1 4- 0940; o r in pe rs on at th e Do cket M a n age m e nt F ac ili ty be twee n 9 a.m. an d 5 p. m . , M onday thro u g h Frid ay , exce p t F ede r a l h o lid ays . T h e AD d oc ke t co n ta in s thi s A D , th e r eg ul ato ry eva lu a ti o n , an y co mm e nt s r ece ive d , a n d othe r in fo rm a ti o n. T he a dd ress fo r the Docke t O ffice (p h o ne: 800-64 7

- 5527) is D oc um e nt M a n age me nt fac ility , U.S. D e p a rtm e nt o f Tra n s port at i o n , D oc k e t O pe ra tio n s , M -30 , Wes t B uild i n g Gro u n d F loo r , R oo m W I 2 -1 40 , 1 200 New J e rsey Ave nu e SE
. , Was hin gt o n , DC 20590. FO R FU R T H E R INFO R M A T IO N C ON TAC T : No rm P e re n so n , Ae r ospace Eng in ee r , New Y ork A i rc raft Cer ti ficat io n Of fi ce, F AA , En gi ne & Prop e ll e r Dir ecto r a t

e, 1 600 S t

e w art Ave nu e , S u it e 410 , W estb ury , N Y 11 59 0 ; ph one : 5 1 6-22 8- 733 7 ; fax : 5 1 6-79 4- 553 1 ; e m a il : n o rm an .pere n so n @ faa.gov. SU PPL EMENTA RY I NF ORM A TIO N : Di s c u ss ion W e i ss u e d a n o tice o f pro p ose d ru le m akin g (N PRM) to a m e nd 1 4 C FR p a rt 39 by ad din g an AD th at wo u l d a p p ly t o cer tai n Lyco mi ng T £0 -54 0- A J I A r ec iprocati n g e n g in es . Th e N PRM publi s he d in th e Fe d e ra l Reg i s te r o n F e bru a ry 2, 2 01 5 ( 80 FR 5 4 8 9). T he N PRM was p rompte d by several repor t s of cracke d e n gi ne ex ha u st p i pes. T h e N PRM pro p ose d to r eq ui r e in s p ec tion of th e e n g in e ex h a us t pip es f o r cr ac k s and rep lace m e nt of the tu r boc ha rge r m o unti n g brac ket. We a re issu ing this AD t o pr eve nt fa il u r e o f th e ex hau st sys te m du e t o c rack in g , w hi c h co uld l ead t o uncontro ll e d e n g in e 2fire, harm ful ex h aust gases e nterin g the cabin res ultin g in crew in capac itation , and damage to the a irpl a n e. 

### Related Serv ice Information under CFR p art 51 We reviewed Lycom ing E n gi n es Mandatory Service Bull eti n No. 6 14A , dated October 10 , 20 14. Thi s se rv ic e bulle tin de sc ribes pro ced ures fo r ex h aust sys te m inspection a nd turb ocharger mounting bracket replacement. It a lso provides for the return of the turbocharger m o unting bracke t to L yco ming. Th i s se rvic e in format i on i s reasonably ava il able at http: // www.regu lations
. gov by sea rchin g fo r a nd locat in g D ocket No
. FAA-20 14-0940. See ADDR ESSES for other ways to access this serv ic e i nformation. 

### Co mments We gave the public the oppo rtunity to pruticipate in develo pin g thi s AD. We received no comme nt s o n the NPRM (80 F R 54 89 , f eb ruary 2, 20 15) or o n th e d ete rminati on of th e cost to th e pub lic. 

### Co nclu sio n W e r ev ie wed th e re l evant data and determined th at air sa f e t

y and the public interest r eq uire adopt in g thi s AD as prop osed. 

### Costs of Co mplianc e We e s t imate that this AD a f fects abo ut 111 e n g in es in s t a ll ed on a i rplanes of U.S. reg i s try . W e a lso estimate th at it w ill take abo ut 8 h o urs per eng in e to comply with thi s AD. T h e av e rage lab o r ra te is $85 per ho ur. P a rt s replacement w i ll cost about $6 , 782 per e n gi n e . B ased on th ese fi g ures , we es timate the cost of this AD o n U
. S
. ope rato r s to be $828 , 2 8 2. Ou r cost es tim ate i s exclusive of poss i b l e warranty cove rage. 

### A u t hori ty for this Rul ema kin g Titl e 49 o f the Un i te d Stat e s Code s pecifies th e FAA ' s auth o rit y to issue rule s on av i at i o n safe ty. Sub tit le I , sect ion I 06, d esc rib es the a uthorit y of the F AA Ad min istrator. 3Subtitle VII: Aviation Programs , describes in more detail the scope of the Age nc y ' s authority. We are i ss uin g this rulem aki ng under the authority described in Subtitle 

### Vll , Part A , Subpart III , Sec tion 

### 4470 I : "Ge neral r e quirem e nts. " U nder that sec tion , Co n gress c h arg es th e FAA with promot in g safe fl ight of civil aircraft in air commerce by prescribing regulations for practices , methods , and procedures the Administrator finds neces sa ry for safety in air commerce. This regulation i s within the scope of that authority because it addresses an un safe condition that i s likely to exist o r deve lop o n products identified in this ru lemaking act ion. 

### R eg ul atory F indi ngs This AD w ill not have federalism implications und er Exec uti ve Order 

### 131 32. This AD will not have a s ub sta ntial direct e ffect on the States, on the relationship between the national gove rnm e nt a nd th e States , o r on th e distribution of power and responsibilities among the var iou s levels of government. For the r easons discussed above, 1 certify that this AD: (I) Is not a " significa nt regulatory action " under Execut ive Order 

### 12866, (2) Is not a " s ign ificant rule " under DO T Regulatory Policies and Procedur es 

### (44 FR 

### 11034 , February 

### 26, 197 9) , (3) Will not affect intrastate aviatio n in Alaska to the exte nt that it ju stifies making a regulatory distinction, and (4) Will not have a s ign ifican t eco nomi c imp ac t , positive or negative , on a s ub stantial number of small entities under the c riteria of the Regu latory Fl ex ibilit y Act. 

### Li st of S u b j ects in 1 4 CFR P a r t 39 Air transpot1ation , Airc raft , Aviation safety, Inc orporation b y refere n ce , Safety.



### 4Adopti o n of the A m en dment Acco rdin gly, under th e a u th o ri ty del egated to m e by th e Admin is trator, th e FAA amends 14 C FR p art 39 as fo ll ows: 

### PART 39- AIRWORTHINESS DIRECTIV ES I. The author ity c itation for part 39 continues to r ead as follows: Authority: 49 U.S.C. 106(g) , 401 1 3 , 4470 1. 

### § 39 .13 )Amende d) 2
. The FAA amends§ 39.13 by adding th e followin g n ew airwo rthine ss dir ec ti ve (AD): 2015-10

- 06 Lycomin g E ngine s (Type Certificate previou s ly held by T extron L y comin g Divi s ion , A VC O Co rp o ration) : Ame ndm e nt 39- 1 8 1 62; D ocke t No
. 

### F AA-20 14

- 0940 ; Directorate Id entifier 20 14-NE -1 5-AD. (a) E ffective Date T hi s A D is effec t ive (INSERT DATE 35 DAYS AFTE R DAT E OF P U BLI CA TION TN TH E FEDERAL REGI STERJ. (b) A ffect e d ADs None. (c)

**App**

**li c~1bility**  T hi s A D applies to a ll L yco min g T I0- 5 4 0-A J 1 A reciprocati ng eng i nes li ste d by
e n gi ne se ri a l numb e r (SIN) in F ig ure I to parag r ap h (c) of th is A D and to any TI0-540- A J 1 A r eci procatin g eng ine w ith a replacement turbocharger mo u nting bracket in s tall e d that was pur c h ased be twee n April 5 , 2 012 and M ay 29 , 201 4.

F i gure 1 to Paragraph (c)- L yco ming TI0-540-AJIA Eng in e S/Ns L

- 6748-6 1 E L

- 1 3828 -61 E L-138 32-6 1 E L

- 1 38 43-61 E L-138 17

- 61E L

- 138 3 1- 6 1 E L

- 1 3833

- 6 1 E L -1 3 847-61 E L-1 3819-6 1 E L-1 3823-6 1 E L-1 3839-6 1 E L-13855-6 1 E L-1 3856 -61 E L-13 9 4 7-6 1 E L-140 11-61 E RL-2551-61 E 5

### L-13857-6 1 £ L-1 3948 -61 £ L-1401 3

- 61 E RL -28 48-61 E L- 1 3866-6 1 E L -1 3949-6 1£ L

- 1 40 14-61 E RL-3 450-61 E L-13867-61£ L- 13950-61 E L- 140 15 -61 £ RL-4138-61 E L-13873-6 1 E L-1 3960 -61 E L

- 1 4 0 I 7-61 E RL-724 3

- 6 1 E L-13882- 6 1 E L-13 961

- 61 E L-1402 4-6 1 E RL-7512- 6IE L-13883-61 E L- 13962

- 6 1 E L-1 4025

- 61 E RL- 8435

- 6 1 E L- 1 3884-6 1£ L-1 396 7

- 61 E L

- 1 4026-6 1 E RL-8767-61 E L-13885-61 E L

- 1 3973-61£ L-14028-6 1 E RL-8914 -6 1 E L-13886-61 E L-1 3975 -61£ L-14034-61 E RL-8979- 61 E L-13895-61£ L-13976-6 1 E L-14054

- 61 E RL-9399-61 E L-1 3896-61 E L

- 1 3979-6 1 E L-14055-61 E RL-9466-61 E L- 138 98-6 1 £ L-13981-61£ L-14056

- 6 1 E RL -9 618-61 E L-13900- 6 1 E L

- 1398 3-6 1 E L

- 14057-61 E RL -9663

- 6 1 E L- 13902-61 E L- 13984

- 61 E L-14062

- 61 E RL-1 0098 -61 E L-13907-61 E L-1399 3- 6 1 E L- 1 4063

- 61 E RL

- 1 0 194- 6 1 E L-1391 3-6 1E L- 13996-61 E L-14 066 -61 E RL -1 0249-61 E L- 1 3915-61£ L-1 3997 -61£ L-14067-61£ RL- 1 061 5-6 1 E L- 13 930-61 E L-1 3998-6 1£ L-14069-6 1 E RL-11 011 -6 1 E L-1 3931-61 E L-1 3999-6 1 E L- 1 4071

- 6 1 E RL-12121-61 E L-139 34-6 1 E L

- 14000-61 E L-14076-61 E RL-12163 -6 1E L- 1 3936-61E L-140 0 I -6 1 E L-14077

- 6 1 E R L- 12343

- 6 1 E L- 1 3938-6 1 E L-14003-6 1 E RL-1726

- 6 1 E RL-13352-61 E L-13939-61 E L -1 4004-61 E RL-1 8 1 0-61 E RL-1360 1 -61 E L

- 13 946-6 1 E L -14 005-6 1 E RL-186 2

- 61£ (d) Unsafe Co ndition Thi s A D was pro mpted b y s eve ral re po rts of c racked engine ex hau s t pipes. We a r

e i ss ui ng thi s A D to pre vent fai lure of the exhau st s y s te m du e to crack ing , which cou ld lead to un contro ll ed e n gine fire , han n ful ex h aust gase s e nte rin g th e cabin resu lti ng in crew inc apac itat ion , a nd dama ge to the a irpl a ne. 

### (e) Co mpli a n ce Com p ly w i th this AD with in the compl ianc e times spe c ifi e d , unl ess a lr ead y clo n e.


### 6( 1 ) F o r a ff ec ted eng in es w ith a n SIN li s te d i n F ig ur e 1 to p a rag rap h (c) of thi s AD with 400 h o ur s or less time since new ( T SN) or time s in ce last overhau l (TSLO) , a n d for any TT0

- 5 4 0

- A J 1 A r eci p roca tin g eng in e w i th a r ep lace me nt tu r boc h a r ge r m ou n tin g b rac k e t in s t a ll e d th a t was pur c h ased b et w ee n Apri I 5 , 20 1 2 a nd M ay 29 , 2 0 14, th a t h as accu mul a t e d 400 hours or less t im e-in-serv ice (T I S) , wit hin 25 h ours after the effect ive d ate of thi s A D , replace the tu rbocharge r m o unti ng bracket w ith a part e li gib le f or in sta ll at io n , an d in s p ec t th e e x hau st p ip es to r cr acks. Use Ly comin g E n g in es M and a t o ry Se r v ice B ull etin ( M SB) No. 614A , date d O c t obe r I 0, 20 I 4, Ex h a u s t Sys t e m Di sasse m b ly a n d R emoval, parag rap h s 1 throug h 22 to rep lace th e bracket , and Exhaus t System Inspec t ion, p a r ag r ap h s l thro u g h 5 to do th e in spec ti o n . (2 ) Fo r affec t ed e n g in es w ith a n S IN li s te d i n Fi g ure I to p ar ag r a ph (c) o f thi s AD with more th a n 400 h o urs T SN or TSLO , a nd for a n y T I0-540-A J ] A rec i procatin g eng i ne w ith a rep laceme n t turboc h arge r m ou nt in g bracke t insta ll ed tha t was p u rchased b e twee n A p r il 5, 20 1 2 a nd Ma y 29, 2 0 14, tha t ha s acc umul a te d m o re th a n 400 hour s T IS,
r ep lace th e turboc h a rge r m o un t ing bracke t w ith a part e li g ibl e for ins t a ll at io n , and i n s p ect the ex h aust pipes for c racks a t the next engi n e overhaul , separat ion of the crankcase h a lves, o r twe lve years fr o m th e effec ti ve d ate of th is AD, w hich eve r co mes fi r st. Use Lyco min g E n g in es M S B No
. 61 4A, elat ed O ct ob e r 1 0,20 14, Ex h a u s t Sys t e m D isassembly a n d R emoval, p aragraphs I thr o u gh 22 t o rep lace t h e bracke t , and Ex h a u st System Inspec t ion, parag rap h s 1 th roug h 5 to do th e i nspection . 

### (f) In stall a ti on P ro hibi ti o n After th e ef f ec tive date of thi s AD, do not re tu rn to se r v ice any T I 0

- 540-A J 1 A eng ine w i th a turbocharger m ou n ti ng bracket th a t wa s removed f r o m an e n gine id e n t i lie d in Fi gure 1 to p a rag ra ph (c) of th is A D o r th a t was pu r c hased b e twee n Ap ri l 5, 201 2 a nd M ay 29, 2 014
.

7

### ( g) Cre dit f o r Pre viou s Action (1) If, before the effective da t e of th is AD , yo u r eplaced th e turboc h a rge r mo u nting bracket with one eligib le tor i n s tallat ion you may take credit for your pri or corrective action. No further turbocharge r mounting bracket r ep lac eme n t i s required. (2) If, before the effective date of thi s AD, you pe rformed the crack inspection
u sing either of th e following: (i) Lycoming Engines MSB No
. 6 14A, da t ed Octobe r 10 , 2014 , Ex h aust System I n spection , parag raphs 1 thro u gh 5 , o r (ii) Cessna Service Letter No. S E L-78-0 1 , dated May 30, 20 14 , you may take credit for your prior corrective action. No fu rther inspection i s required. H oweve r , yo u must still replac e the turbocharger mounting b racket. 

### ( h) Al te rn a ti ve Method s o f C ompli a n ce ( AMO Cs ) The Manage r , New York A ircraft Certificatio n Office , FAA , may app rove AMOCs to thi s AD. Use the procedures f o und in 14 CFR 39.19 to make your request. 

### ( i) R e late d Inf o rm a ti o n For mor e infonnation about thi s AD, contact Norm Peren so n , Aerospace Engineer, New York Airc raft Certification Office, FAA, Engine 

### & Propelle r Directorate , 1 600 Stewart Avenue , S ui te 410 , Westbury , NY 1 1 590; p h one: 5 1 6-228-7337; fax: 516- 794-553 1 ; e m a i l : norman.perenson @ faa.gov. U) 

### M at er i a l In c orp o r a t e d b y R efere n c e ( 1 ) The Director of the Federal Register approved th e in corporat ion b y reference (IBR) of the service information listed i n this pa r agr ap h under 5 U.S.C. 552(a) and 1 CfR part 5 1. (2) You must use this service information as app li cable to do the actions required by this AD , unl ess the AD specifies otherwise.



### 8

### ( i) Lycoming E ngi nes Mandatory Service Bulletin No. 614A , dated October 10 , 20 14. (ii) Reserved. (3) For Lycoming Eng ines s ervice information identified in this AD , contact Lycomi n g E ng ine s, 652 O li ver Stree t , William spo rt , PA 17701 ; phone: 800-258

- 3279 ; fax: 570-327-7 1 0 1 ; I n ternet: www.lycoming

. com/Lycoming/SUPPORT/TechnicalPub l ications/ServiceBu ll etin s.aspx. (4) You may v iew this serv ice infom1 ation at FAA , Engi ne 

### & Propeller Directorate , 12 New Englan d E xecut ive P ark, Burlington , MA. For information on the ava il abi lit y of t hi s mate rial at th e FAA , call 781- 238 -7125
. (5) You may v iew this serv ice information that is incorporated by reference at the Nation a l Archives and Records Adm ini stration (NARA)
. For i nformation on the avai lab ility ofthis material at NARA , call 202-741

- 6 030 , or go to: http: //www.arc hi ves.gov/ federa l-r e g is te r / cfr / i br- locat io n s.html.
Issued in B urlin gton , Massachusett s, on May 1 2 , 2015.

Co ll een M. D ' Alessandro , Assistant Directorate Manager, Eng i ne & 

### Prope ll er Directorate , Aircraft Cert ificati o n Ser v ic e .



### 9