05/25/201 0 15:1 0 816329410 & SAD PAG E 02/0 4 

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Smal l Airplan e Directorat e \ j & i C r1 ' , > T'RTATIO M 90 1 Locust Kansa s Cfty , M O 6410 6 U.S . Departmen t ' > ' o f Transportatio n Federa l Aviatio n i ' . it - j o

MA Y 2 5 201 0 Mr . Ric h Adle r Directo r o f Engineerin g Wipaire , Incorporate d 170 0 Henr y Avenue , Flemin g Fiel d Sout h St . Paul , M N 5507 5 Dea r Mr . Adler : W e ar e enclosin g agrant

o f you r petitio n submitte d o n Ma y 4,2010 , requestin g exemptio n fro mth e requirement s o f

§ 23.177(b ) o f

Titl e 1 4 o f

th e Cod e o f

Federal Regulations . Th e exemptio n allow s Wipaire , Incorporate d to instal l th e Wipair e mode l 700 0 amphibia n float s o n th e Ques t

Aircraf t Design , LLC . mode l 10 0 "Kodiac " aircraf t withou t meetin g lateral stability requirements . I f

yo u hav e an y questionS

j pleas e contac t

Mr . J . Lowel l Foste r

a t th e abov e addres s o r

cal l hi mo n 816-329-4125 , Sincerely , 

# fi= ^ i mSmit

h Manager , Smal l Airplan e Directorat e Aircraf t Certificatio n Servic e Enclosur e05/25/201 0 15:1 0 816329410 6 SA D PAG E 03/0 4 

# Q U.S . Departmen

t o f Transportatio n Federa l Aviatio n Administratio n Smal l Airplan e Directorat e 90 1 Locus t

Stree t Kansa s City , Missour i 6410 6



### Exemption No . 1006 8 Regulator y Docke t No . FAA-2010-049 5 Ma y 25,201 0 Mr . Rich Adle

r Directo r o f Engineering Wipaire , Incorporated 170 0 Henr y Avenue , Flemin

g Fiel d Sout h St . Paul , M

N 5507 5 Dea r Mr . Adler : Thi s lette r i s t o infor myo u tha t w e have grante

dyou r reques t fo r exemption . I

t transmit s ou

r decision , explain s it s basis , an d give s yo u th e condition s an

dlimitation s o

f the exemption , including th e dat

e it ends . Th e Basi s fo r

Ou r Decisio n B y lette r dated Ma y 4,2010 , you petitionedth e Federa l Aviatio n Administratio n (FAA ) on behalf o f Wipaire , Incorporated (Wipaire) fo r a n exemption from § 23.177(b ) o f Titl e 14 , Cod e o f Federa l Regulation s (1 4 CFR

) t o the exten t necessar y t o allo w Wipair

e t o instal l the Wipair e model 7000 amphibia

n floats o n the Quest

Aircraf t Design , LLC , mode

l 10 0 "Kodiac " aircraf

t without meeting latera

l stabilit y requirements . The FA A ha s determined tha

t good caus e exist s fo

r not publishing asummar

y o f th e petitio n i n the Federa

l Registe r becaus e th e requestedexemption woul dnot se t aprecedent , an

dan y dela y i n acting on tlti s petitio n would be detrimenta l t o Wipaire . Th e FA A ha s previousl

y granted relief

i n acircumstanc e simila

r t o thos e presentedin you

r petition . I n thes e circumstances , th

e FA A foun dtha t fo r th e airplane in question , th e gradua l divergenc e was acceptable becaus e o f th e uniqu e natur

e o f the airplane an

dit s operations . I

n th e cas e o f th e Kodiak , ACE-10-275- E05/25/201 0 15:1 0 816329410 6 SA D PAG E 04/0 4

(1 ) th e wea

k t o slightl y unstabl e latera l stability margin s o f th e modifie d aircraf

t d o no t preclud e continue d saf

e flight an d landing . Complianc e with § 23.147(c ) wa s determine d durin g flight

tes t wit h th e rol l control s free, reduce d operational margins , an d th e installatio n an d us e o f th e emergenc y ailero n tri mtime r overrid e syste m (ETTOS) , (2 ) th e weakl y divergen t

lateral stability o f

th e modifie d aircraf

t i n certai n configuration s i s no t detrimenta l t o norma

l operation s and , (3 ) th e modifie d aircraf

t meet s th e origina l inten t

o f § 23.177(b) , i n th e "get-home " emergenc y configuratio n followin g los s o f primar y rol l contro l Th e Kodia

k airplan e incorporate s th e emergenc y ailero n tri mtime r overrid e syste m(ETTOS) , whic h wil l b e installe d a s part o f th e float installatio n approval . Th e ETTO S allow s continuou s operatio n o f

th e ailero n tri msyste mi n a n emergenc y configuration . Havin g reviewe d your

reason s for

requestin g a

n exemption , I find that

— • th e reason s state d b y th e FAA fo r grantin g th e previou s relie f als o appl y t o th e situatio n yo u present ; an d • agran t

o f exemptio n i s i n th e publi c interest . Ou r Decisio n Unde r th e authorit

y containe d i n 4 9 U.S.C . 4011 3 an d 44701 , whic h th e FAA Administrato r ha s delegate d t o me , I hereb y grant Wipaire , Incorporate d an exemptio n from § 23.177(b ) subjec t t o th e condition s an d limit s describe d below . Condition s an d Limitation s Wipaire , Inc . mode l 700 0 amphibian floats o n Ques t Aircraf t Design , LL C mode l 10 0 "Kodiak " aircraf

t i s exemp t

fro mmeetin g th e stati c lateral stabilit y requiremen t

o f § 23.177(b ) -provide d th e aircraf

t i s equippe d wit

h th e Wipaire Emergenc y Tri mTime r Overrid e Syste m (ETTOS) . Th e ETTO S syste mprovide s aleve l o f safet y at leas t equal t o tha t

provide d b y § 23.177(b) . Sincerely , John Colomy Actin g Manager , Smal l Airplan e Directorat e Aircraf t Certificatio n Servic e