### [4910-13

- P] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 rDocket No. FAA-2012-0913; Directorate Id entifier 2012-NE-23-AD; Amendment 39-18261; AD 2015-18-03] RIN 2120-AA64 Ainvorthiness Directives; Honeywell International Inc. Turboprop Engines (Type Certifi cate previousl y held b y AlliedSigna l Inc., Garrett Engine Divi s ion ; Garrett Turbine Engine Company; and AiRcsearch Manufacturing Company of Arizona) AGENCY: Federal Av iation Administration (FAA) , DOT. ACTION: Final rul e . SUMMARY: We are adop tin g a new a irworthiness directive (A D) for ce rt ai n Honeywell Intern at iona l Inc. T P E331 -5 , -SA , -5AB , -5B , -10 , -lOR, -IOU , -IOUF , - I OUG , -IO UGR , a nd -1 O U R model turboprop e ng in es. This AD was prompte d by engine propeller s haft coupling fai lures , leading to unexpected pr opeller pitch changes resulting in high aerodynamic and asymmetric drag on the airplanes using these engines. This AD req uires removin g certain part number (PIN) propeller shaft couplings from service. This AD also require s in se rtin g a copy of i-I oneywelll nt ernat iona llnc. Operating Information Le tte r 01331-26 , dated March 2, 2010, into the applicable Ai rpl ane Flig ht Ma nu als. We a re i ssuing this AD to prevent lo ss of ai rplan e control , leading to a n accident. DATES: This AD is effective [INS E RT DAT E 35 DAY S AF T ER D ATE OF PUBLICATION I N THE FE D ERA L REG I STER]. A DDRESS ES: For se rvice information identified in this AD , con ta c t Hon eywell Intemationa l In c . , Ill S. 34 1h 

### Street , P ho en i x , AZ 85034-280 2; phone: 800-601-3099; Internet: http ://port a l.hon eywe ll. com. You may view this service information at the FAA ,Engin e & Prope ll er Directorate , 12 New England Execu ti ve Park , Burlingto n , MA. Fo r information on t he ava il ability of thi s material at the FAA , call 78 1 -238

- 7 1 25

. E xaminin g th e AD D oc ke t You may examine the AD docket on the Inte rnet at http: //vvvvw.r eg ulation s.gov by
sea rchin g for a nd locat ing Docket No

. F AA-20 12-0913; or in pe rson a t the Docket Management Facility b etwee n 9 a.m . and 5 p.m. , Mo nday thro u g h Frid ay, exce pt Federal ho li da ys. T he AD do cket conta in s this AD, th e reg ulatory eva luat ion , any comments
rece i ved , a nd other information. The address for the D ocket Office (ph one : 800-647-5527) is D oc ument Management Fac i li ty , U

. S

. D epartmen t ofTransportation , Doc ket Ope r ations , M-30 , West Build ing Ground Floor, Room W12

- 140 , 1200 New Jersey Avenue SE. , Washington , D C 2059 0. F OR FU RTHER I NF ORMATIO N C ONT AC T : .J oseph Cos ta , Aero s pac e E n ginee r , Los An ge les Ai1 · craft Ce rt ification Office , FAA , Transport Airplane Directorate , 3960 Param o un t Blvd., L akewood, CA 907 12

- 4137 ; phone: 562-627-5246 ; fax: 562

- 627-5 21 0 ; ema il : jo se p h .costa @ faa.gov. SUPPL EMEN TARY I NF O RMAT IO N: Di s cu ss io n We issued a not ice of prop ose d rulemakin g (NPRM) to amend 14 C FR part 39 by
a ddin g an A D that wo uld apply to ce t1 ai n H o neywe ll Int e rn at io nal Inc. TP E33 1 -5 , 

### - SA , -5AB, -5B , - 1 0, -lOR , -IOU,

- lOUF, -IOUG , - I OUG R , and

- l OU R m od e l turbop r op
e ngin es. T he N PRM published in the Federal Reg is t e r on May 12 , 2014 (79 FR 26906). The NPRM was pro mpted by engine prope ller s haft coupling failures , leadi ng to unexpected prope ll e r p itch change s r es ul t ing in h ig h aerodynamic and asymmetric drag on th e airplanes u s in g th ese engine s . T he N PR M pro po sed to require r e m oving certain PIN prop e ll e r shaft couplings from se rvice and inse r ti ng a copy ofF i on eywe ll International I nc. Op erating Information Lette r 0 133 1

- 26 , el a ted March 2 , 20 10 , into the 

### 2a pp l icab l e Airplane F l ig ht Manual s . W e are issuin g thi s AD to prevent lo ss of airplan e cont rol , leading to an acc ident. 

### Co mm ents We gave the pub li c the opportun ity to partic ipate in developin g this AD. The following presents the comment receive d on the NPRM (79 FR 26906 , May 12 , 20 14 )
a nd th e FAA's response t o th e comment. 

### R e qu es t to C h a n ge Co mplian ce T im e Bas is Honeywell International qu est ioned whether comp l iance tim e s h o u ld be stated in flight hours as opposed to flight cyc l es as used in th e NP RM (79 FR 26906 , May 1 2 , 20 14 ). Major periodic in s pection s are based on hours a nd not cycl es. We do not agree. The FAA practice of stati n g compliance time i s based on the compone nt 's mode of failure. In this case the failure mode was fatigue ; th erefo re , a
co mpliance time in fli g ht cycles i s appro priate
. We did not c hang e thi s AD. 

### Co nclu s ion We revi ewed the relevant data , co n s idered the co mmen t rec e ived , and determin ed that a i r safety and th e pub lic inte res t require adopting this A D as proposed. 

### Cos t s of C ompli a n ce We estimate that th i s AD w ill a ff e ct 485 e n g in es insta ll ed on ai rp lanes of U.S

. reg i stry. We also estimate that it wi ll take abo ut o n e hou r per e n gine to pe r fo rm the actio n s re quired by thi s AD, if don e at n ext scheduled tu rbine hot sec ti o n inspection (HSI), a n d 40 hour s per engine if done a t an unschedul e d access of th e prope ll e r s h aft coupling. We also estim ate that 400 eng in es w ill hav e the rep lacem e nt ac ti ons done at a
sc h ed ul e d time of n e x t turbin e H S I, and 85 e ngin es w ill have the rep la ce m en t a cti ons done at an unschedul e d access of the propeller shaft coupling. The average labor rate i s $85 per hour. Require d par ts will cost abo ut $ 12 ,000 per e ng ine . Ba sed o n these fi g ur es , we est im ate the total cost of this A D to U.S. oper ators to be $6 , 1 43,000. 

### 3Aut hority for thi s Rulemaking T itle 49 of the U nited States Code spec ifi es th e FJ\A ' s authority to i ssu e rules on aviatio n safety. S ub title I, sec tion 106 , describes th e a uthority of the FAA Adm inistrator. S ub ti t l e VII : Aviation Program s, de sc rib es in more d e ta il the scope of th e Age ncy 's authority. We are i ss ui ng this rul e m aki n g u nd e r th e auth o ri ty desc ri be d in S ubtitl e 

### Vll , P art A , S ubpart III , Se ction 44701: "Ge neral require m e nt s . " Under th at section, Congr ess charges the FAA wi th p romotin g sa(e ni g ht of civil a ircraft in air comm e rc e b y pr escribi ng regulations fo r practices , m ethods , and procedures th e Adminis trator finds
necessary for safety in air com m erce. This regulati o n i s withi n th e sco p e of that authority b ecau se i t addre sses a n unsafe cond iti o n that is li ke ly to ex i s t o r d eve lop o n product s id e ntified in this ru lemaking action. Reg ul a tory F indin gs This AD will n o t have fede r a li s m im plication s und e r Exec uti ve Order 13132. Thi s AD wil l not have a s ub s tantial direc t effect on the States , on the relation s hip between th e national govern m en t and th e States , o r on the di s tributi on of power a n d res pon s ibiliti es among the va ri ous leve ls of governme nt. Fo r th e r easo n s discussed above , I certify th at this AD: ( 1 ) I s not a " sig nificant regulatory ac tion " un der Executi ve Ord e r 12866 , (2) Is not a " s ig nifican t rul e ' · under DOT Regulatory Policies an d Proce dures (44 FR 11034 , February 26, 1 979), (3) Will not affect intr as tate av ia ti on in Alaska t o the extent that i t j u s tifies making a r eg ulat ory d ist in ct ion , and ( 4) Will n o t h ave a significant eco nomic imp ac t, positive or ne ga ti ve , on a
s ub s tantial numb e r of s mall entities und e r th e cr i teria o f the Reg ul ato ry Flexib ilit y Act.

4List of Subjects in 

### 1 4 CFR Part 

### 39 Air tran s p o rtation, Airc raft , Av iation safety, Inc o rporation b y r e ference , Safet y . A d o ption of the A m e ndm e nt According ly , under the authority de lega ted to me by the Administrator, the FAA
am e nds 14 CFR part 3 9 as follow s : PART 

### 39- A IRW O RT HINESS DIR ECTIVES 1. The au th o rit y citation for part 39 cont inu e s to r ead as follow s : Authority: 49 U.S.C. 106(g ), 40113 , 44701. 

### § 39.13 [ Amen d ed ! 2. T he FAA amends§ 39.1 3 by adding th e following new airworthiness directive (AD): 

### 2015-18-03 Hon ey w e ll Intern a tional Inc. (Ty pe Cer tifi cat e prev io u s ly held b y A lli e d S igna l Inc ., Ga rrett Engin e Di v is ion; Garrett Turbine E n gine Com pan y; an d A iR esearch Manufacturing Co mp a n y of Arizona) : Amendment 39- 1 826 1 ; Docket No. FAA-20 12-0913 ; Dir e ctorate Identifier 2012

-NE-23-AD. (a) Effective Date Th is AD is eff e c ti ve [INS E RT DATE 35 DAYS AFTER DAT E OF PUBLICATION rN THE FEDERAL REG ISTER]. (b) Af f ecte d ADs None. (c) A pplicabili ty This AD applie s to Honeyw e ll International Inc. TPE331-5 , 

### -SA , -SAB , -SB , -I 0 ,

- l OR , -IOU,

- J O UF , -IO U G , -lOUGR , a nd -JOUR mo de l turboprop e ng i nes, w ith a prop e ller shaft coupI in g , part numb e r (P / N) 3107065-1 , 865888

- 3 , 865888-6, or 865888 -8 , installed.

5

### (d) Unsafe Co ndition This AD was prompted b y e ngi ne prop e ll er shaft coupling failures , leading t o unexpected p rope ll er p itch changes resulting in high aerodynamic and asymmetr ic drag
on the ai rplanes using these engines. We are iss uing this AD to prevent lo ss of airplane control, lead in g to an accide nt. 

### (e) Compliance Co mpl y wi th this A D w ithin th e compliance tim es s pecified, unl ess a lread y done. 

### (1) Engines Installed In Mitsubishi MU-2B Serie s (MU-2 Series) Airplanes: Re move from se rvice the affected propeller s h aft coupling at the ea rliest of the following: (i) Next piece-pat1 exposure; o r ( ii ) Nex t turbine (hot) sectio n inspection 

### ( T

- TSl); or (ii i ) Before accum ulatin g an add i ti o n al I , 200 cycles after th e effect ive date of this AD. 

### (2) Engines Installed In Construeciones Aeronauticas, S.A. (CASA) C-2 12 Series, and Twin Co mmander 690 and 695 Series ( J etprop Commander) Airplanes: Remove fr om se rvice the affected propeller shaft coupli n g at th e ea rli es t of the following:

A D. ( i) Next pi ece-part exposure ; or (i i) Next turbin e 

### H S I; or (iii) Before accumu latin g an additio n a l 2,40 0 cycle s afte r the effective date of this



### 6

### (3) Engines In s talled In British Aerospace J ets tream 3101 Series, Dorni e r Luftfahrt Dornicr 228 Se ri es, an d M7 (formedy Fairchild , Swearin g en) SA226 and SA227 Series A irpl anes, and All Other Airp l anes Not Listed in this AD Using Affected Eng in es: Remove from serv ice the affected prop elle r shaft coup lin g at the ea rliest of the following: ( i) Next piece-part exposure; or (ii) Next turbine HSI; or (iii) Before accumulat in g an addition al 3 , 600 cycles after the effective date of this AD. 

### (4) Inserting a Copy of Hone ywe ll Internationa l Inc. Operatin g Information Letter into the FAA-Approved F li ght Manua l: Within 60 days after the effective date of this AD , for airplanes with eng ine prope ll e r s h aft coupling , 

### PIN 3107065- 1 , 865888-3 , 865888-6 , or 865888-8 , installed , insert a copy of Hon eywe ll International Inc. Operat ing Information Letter 0133 1 -26 , dated March 2, 20 I 0 , into the Emergency Procedures Section of the applicable A irpl ane F light Manual, Pilot Operating Handbook, or Manufacturer ' s Operating M anual. 

### (f) Definition For th e pu rpose of this AD , next piece-part exposu re is w hen the nose cone assembly is r emoved from the engine. 

### (g) In sta ll at ion Prohibition Afte r the effective date of this AD, do not install any propeller s h aft co uplin g , PIN 3107065-1 , 865888-3 , 865888-6 , o r 865888-8 , into any e n g in e. 

### (h) A lt ernative Methods of Comp li ance (AMOCs) The Manag er, Los Angeles Airc r aft Certification Onice, FAA, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39. 19 to make you r request. 7( i) R elate d Inform at ion ( I ) F o r more in format io n about thi s AD , co ntac t Josep h Costa , Ae rospace E n g in ee r , Los Ange l es A ircraft Ce rt ifi cati o n O ffice , FAA, Tra n s p o rt Ai rplane Dir ecto r ate, 3960 Para mount Bl v d

. , Lakewood , CA 9 07 1 2 -4137 ; ph o ne: 5 6 2

- 6 2 7-5 2 46 ; fax: 562

- 627-521 0; e m a i l : j o se ph .costa @ faa

. gov . (2) A lli e d -S igna l Aeros p ace Co mpany Service B u ll etin No. T P E331

- 72

- 0 8 73 , Rev i s ion 1 , da te d M ay 2 0 , 1 9 9 3, w hi c h i s not inc orp o r a te d b y ref e re nce in th i s A D , c a n b e ob ta in ed fr o m H o neywe ll In te rn a ti o n a l , u s i n g the co nt ac t inform a ti o n in p ar a graph (i)(3) of thi s AD. (3) Fo r serv ice inf o nna ti o n ide ntifi e d in thi s A D , co nt a ct Ho neywe ll In te rna tiona l I nc. , I I I S

. 34 111 S tree t , Ph o en i x , AZ 8 5 0 34 -280 2; ph o ne : 800-601 -3 0 99; I nte rn e t: http: / / po rtal. ho neywe l ! .com . ( 4 ) Yo u m ay view thi s serv ice inf orm ati o n a t th e FAA, En gi ne 

### & P ro p e ll er Dir ec t o r a te , 1 2 New E n g land Exec uti ve P ark , Bur li n g t o n , M A

. Fo r inf o rm a t io n on th e
ava il abi l ity of thi s ma t e ri a l at th e FAA, ca ll 78 1

- 238

- 7 1 25. (j) Ma ter i a l Incorp o ra te d b y Re f e re n ce N on e .
I ssued in Burlin g t on , Massac hu se tt s, o n A u gus t 27 , 2014.

A n n C. Mollic a, Act ing Ass i sta n t Di recto rate Manage r , Eng in e & P ro p e ll er Direc torat e , Ai rcraft Cert ifi cat ion Service

.

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