03/09/201 0 13:0 0 816329410 6 SA D PAG E 02/0 5

& U,S, Departmen t o f Transportatio n Federa l Aviatio n Administratio n Smal l Airplan e Directorate 90 1 Locust Kansa s City . MO 64106



## m R9 Mr . Eri c Leave r Prograj;! ! Manager/Administrativ e DE R Cub Crafters , Inc . 191 8 S . 16' ^ Avenue/P.O

- Bo x 982 3 Yakima , W A 9890 3 Dea r Mr . Leaver : W e are enclosin g agran t

o f you r petitio n submitte do n Novembe r 13 , 2009 , requestin g an exemptio n fromth e requirement s o f 1 4 CFRpart

23 , § § 23.5(52 . Th e exemptio n allow s Cu b Crafter s to obtai n atyp e certificat e o n th e Cu b Crafter s mode l CC18-18 1 airplane s vvit h seat s that hav e no t show n complianc e wit h th e emergenc y landin g dynami c condition s o f 1 4 CF Rpar t 23 , § 23.562 , effectiv e at Amendmen t

leve l 23-50 . I f

yo u hav e an y questions , pleas e contac t

Mr . Le s Taylo r

a t th e abov e addres s o r

cal l hi mo n 816-329-4134 . Sincerely , Ki mSmi t Manager , Smal l Airplan e Directorat e Aircraf t Certificatio n Servic e Enclosur e03/09/201 0 13:0 0 816329410 6 SA D PAG E 03/0 5

Exemptio n No . 1001 6 UNITE D STATE S O F AMERICA DEPARTMEN T O F TRANSPO.RTATIO N FEDERA L AVL\TIO N ADMINISTRATIO N WASHINGTON , D C 2059 1

I n th e matte r

o f th e petitio n o f CU B CRAFTERS , IN C fo r a n exemptio n from§ 23,56 2 o f Title 14 , Cod e o f Federa l Regulation s Regulator y Docke t No . FAA-2009-116 1

GRAN T O F EXEMPTIO N B y lette r date dNovembe r

13 , 2009 , Mr . Eri c Leaver , ProgramManager/DER , Cu b Crafters , Inc. , 191 8 S . 16^ ^ Avenue , Yakima , W A 9890 3 petitione dth e Federa l Aviatio n Administratio n (FAA ) on behal f o f Cu b Crafters , Inc . fo

r a n exemptio n fro m§ 23.56 2 o f Title 14 , Cod e o f

Federa l Regulation s (1 4 CFR) . Th e propose dexemption , i f granted , woul d allo w for typ e certificatio n o f

th e Mode l CC18-I8 1 aircraf t with seat s tha t

hav e no t show n complianc e wit h th e emergenc y landin g dynami c conditions . Cu b Crafters , Inc . propose s th e us e o f stati c test s o n th e seats . Th e petitione r

request s relie f

fro mth e followin g regulation[s] : Sectio n 23.56 2 prescribes , i n pertinen t part , that eac h seat/restrain t

for us e i n anormal , utility , o r acrobati c categor y airplan e successfull y complet e dynami c seat tests , o r otherwis e demonstrat e eac h seat/restrain t syste mb y rationa l analysi s supporte db y dynami c testS

j unde r th e tes t condition s name di n § 23.562 , paragraph s (b)(1 ) an d (b)(2) . Th e petitione r

support s it s reques t

wit h th e followin g information : Th e petitione r

state s Cu b Crafter s propose s th e us e o f stati c test s o n th e sea t

an d harnesse s an dt o equi p th e aircraf t wit h afour-poin t

harnes s b y usin g aTechnica l Standard s Orde r

(TSO) , an dthat

th e lo w stal l spee dan dlo w hea dimpac t i s als o justificatio n for

th e exemption .03/09/201 0 13:0 0 816329410 6 SA D PAG E 04/0 5

A summary o f

th e petitio n was publishe di n th e Federa l Registe r o n Januar y 22 , 201 0 (7 5 F R3783) . N o comment s wer e received . Th e FAA' s analysi s i s a s follows : T o obtai n thi s exemption , th e Petitione r mus t show , a s require db y § 1 ! .81 , paragraph s (d ) an d(e) , respectively , tha t (1 ) grantin g th e reques t

i s i n th e publi c interes t

an d(2 ) th e exemptio n wil l not

adversel y affec t

safety , o r

that aleve l o f safet y wil l b e provide dthat

i s equa l t o that

provide db y th e rule s fromwhic h exemptio n i s sought . Th e FA A ha s previousl y grante dsimilar

exemption s o n othe r

type s wit h stal l speed s o f

4 5 knot s o r

less. Th e othe r exemption s als o provide dsimilar type s o f safety-enhancing , mitigatin g features . Th e FA A ha s accepte dth e informatio n containe di n th e Petitioner' s reques t for exemption , an dagree s with th e petitioner' s argument s fo r n o advers e safety effect : • A lo w stal l spee do f

4 5 knot s o r

les s resultin g i n lowe r

impac t kineti c energ y tha n a n aircraf t with a6 1 knot

stal l speed ; • A seatin g syste mtha t i s designe dt o th e ite mo f mas s longitudina l loa dfacto r for a17 0 poun doccupant , whic h exceed s curren t part 2 3 requirements ; • Th e us e o f

afour-poin t

harness ; • A strik e fre e hea dflai l envelope ; • A maximu moccupan t coim t o f two . Th e FAA' s Decisio n I n consideratio n o f

th e foregoing , I findthat agran t o f exemptio n i s i n th e publi c interes t an d wil l no t adversel y affec t

safety . Therefore , unde r th e authority containe di n 4 9 U.S. C § § 4011 3 an d44701 , delegate dt o m e b y tihe Administrato r (1 4 CF R11.61) , Cu b Crafters , Inc . i s grante da

n exemptio n fro m§ 23.56 2 o f th e Federa l Aviatio n regulation s t o th e exten t necessary t o allo w typ e certificatio n o f th e Mode l CC18-18 1 airplan e witliou t an exac t showin g o f

complianc e wit h requirement s o f § 23.562 . Fo r

th e CC18-181 , thi s exemptio n i s subjec t t o th e followin g condition s an dlimitations :03/09/201 0 13:0 0 816329410 6 SAD PAG E 05/0 5



### Condition s an dLimitation s 1 . Cu b Crafters Model CC18-18 1 mus t maintain astall speedo

f n o mor e tha n 45 knot s whe n in th e landing configuration . 2 , Thi s exemptio n i s limitedt o the Cu b Crafters Model CC 18-18 1 a s equippedwit h seats , restraints , attachment s an dothe r alterations , as describe din the petitioner' s reques t fo r exemption . Significan

t change s t o an y of tlies e element s ma

y requir e additiona l testin g an

dsubstantiation . Issue din Kansa s City , Missour

i o n Marc h 9 , 2010 .

Sandr a J . Campoel l Actin g Manager , Smal l Airplan e Directorat e Aircraf t Certificatio n Servic e