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Docke t Managemen t Facilit y U S Departmen t o fTransportatio n 120 0 Ne wJerse yAvenue , S E Wes t Buildin g Groun d Floo r Roo m W12-14 0 Washington , D C 2059 0 Dea rSi ro rMadame : Bristo wU.S . LL C i s a commercia l Ai rCarrie rcertificate d unde rCF R Titl e 14 , Par t 11 9 an d 135 . Currentl y w e operat e an d maintai n 2 9 aircraf t unde r135.411(a ) (2 ) "CAMP " an d operat e an d maintai n 6 0 aircraf t unde r135.411(a ) (1 ) "AAIP" . Th e reference d regulation s tha t follo war e th e subjec t o fou rreques t fo ra n exemption . FA R 91.413 , AT C transponde rtest s an d inspections , state : (b ) Followin g an yinstallatio n o rmaintenanc e o n a n AT C transponde rwher e dat a correspondenc e erro r coul d b e introduced , th e integrate d syste m ha s bee n tested , inspected , an d foun d t o compl ywit h paragrap h (c) , Appendi xE , o fPar t 4 3 o fthi s chapter . (c ) Th e test s an d inspection s specifie d i n thi s sectio n mus t b e conducte d by—(2 ) Aholde ro fa continu ou s airworthines s maintenanc e progra m a s provide d i n Part 12 1 o r§135.41 1 (a ) (2 ) o fthi s chapter . FA R 91.411 , altimete rsyste m an d altitud e reportin g equipmen t test s an d inspections , state : (a ) N o perso n ma yoperat e a n airplane , o rhelicopter , i n controlle d airspac e unde rIF R unless — (3 ) Followin g installatio n o rmaintenanc e o n th e automati cpressur e altitud e reportin g syste m o fth e AT C transponde rwher e dat a correspondenc e erro rcoul d b e introduced , th e integrate d syste m ha s bee n tested , inspected , an d foun d t o compl ywit h Paragrap h (c) , Appendi xE , o fPart 4 3 o f thi s chapter . (b ) Th e test s require d b yparagrap h (a ) o fthi s sectio n mus t b e conducte d by— (1 ) Th e manufacture ro fth e airplane , o rhelicopter , o n whic h th e test s an d inspection s ar e t o b e per formed ; (2 ) Acertificate d repai rstatio n properl yequippe d t o perfor m thos e function s an d holding — (i ) A n instrumen t rating , Clas s I ; (ii ) Alimite d instrumen t ratin g appropriat e t o th e mak e an d mode l o fapplianc e t o b e tested ; (Hi) Alimite d ratin g appropriat e t o th e tes t t o b e performed ; (iv ) A n airfram e ratin g appropriat e t o th e airplane , o rhelicopter , t o b e tested ; o r (3 ) Acertificate d mechani cwit h a n airfram e ratin g (stati cpressur e syste m test s an d inspection s only) .

Bristo wU.S . LL

C ^160 5 Industria l Drive , Ne

wIberia , Louisian a 70560 , Unite d State s t (337)36 5 677 1 f(337 ) 36 4 822 2 www.bristowgroup.co m

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Th e Bristo wU.S . LL C flee t i s positione d i n numerou s location s alon g th e Gul fCoas t are a o fLouisiana , Texa s an d severa l internationa l locations . Th e economi cburde n involve d i n contractin g wit h a Par t 14 5 Repai rStatio n t o trave l t o thes e location s an d perfor m th e require d inspection s woul d b e excessiv e fo r th e operato rt o bear . Locating , a n FAACertificate d Repai rStatio n at th e internationa l location s coul d b e especiall ydifficult . Additionally , internationa l Certificate d Repai rStation s ma yno t hav e th e technica l ex pertise , familiarit yo rspecia l equipmen t require d t o perfor m th e require d inspection s o n Bristo waircraft . Sinc e 91.41 3 provide s fo ra holde ro fa continuou s airworthines s maintenanc e progra m t o test , inspect , an d compl ywit h Paragrap h (c) . Appendi xE , o fPar t 4 3 o fthi s chapter , w e fee l i t i s appropriat e fo rBris to wU.S . LL C t o b e exemp t fro m th e requirement s impose d b y91.41 1 t o requir e a repai rstatio n t o compl y wit h thes e sam e requirements . Furthermore , litera l translatio n o f91.41 3 state s tha t a holde rofa continuou s airworthines s maintenanc e progra m ma yconduc t th e testin g require d an d doe s no t sa ytha t th e rul e onl yapplie s t o CAM P aircraft , an d sinc e th e complexit yo fth e CAM P aircraf t i s highe rtha n tha t o fou rAAI P aircraft , w e (Bristo wU.S . LLC ) reques t a n exemptio n fro m requirin g a repai rstatio n t o perfor m thes e test s o n ou rAAI P aircraft . Allowin g Bristo wU.S.LL C t o perfor m th e inspectio n an d testin g wit h ou rtraine d personne l woul d b e i n th e interes t o fpubli csafety , becaus e o ffamiliarit ywit h th e aircraf t i n ou rfleet . Th e alternativ e woul d b e t o hav e a n outsid e repai rstation , whic h ca n b e fa rles s reliabl e an d no t alway s availabl e o n a timel ybase , t o mee t ou rrequirements . Th e unreliabilit yo fthi s metho d ca n ofte n mea n aircraf t ar e unavailabl e fo rcus tome rservic e eve n whe n ther e ar e qualifie d Bristo wpersonne l availabl e o n sit e t o perfor m th e require d inspectio n an d testing . I n summatio n Bristo wU.S . LL C (ALGA151C) i s requestin g a n exemptio n t o 91.411(b ) (2) , an d a n addi tiona l exemptio n i o 91.413(c ) (2 ) whic h wil l allo wAAI P aircraf t t o b e include d i n thi s paragraph . Grantin g thi s exemptio n woul d provid e a n equal o rgreate rleve l o fsafet ywhe n performin g thes e Inspec tion s o rtestin g requirements . Sincerel yyours , BRISTO WU.S . LL C Dougla s S . Forslun d Director , Ne wIberi a Support DSF/ed s