06/24/201 0 16:4 7 816329410 6 SA D PAG E 02/0 5

• " • • ' Smal l Afrplan a Dlrectorat s

9D 1 Locus t U,S , Deportmon t Kansa s City , M O 6410 6 o f Transportatio n Fedsra l Avlaflo n AdmlnisfrOtlo n

Jun e 24 , 201 0 Mr , Randolph Shield s Director , Ceitificatio n Hawke r Beechcraf t Corporatio n 970 9 Eas t Centra]/P.O . Bo x 8 5 Wichita , K

S 67201-008 5 Dea r Mr . Shields : W e ar e enclosin g a

n amendmen

t t o agi-an t of exemption fo

r apetitio n originall y submitted b y Mr . Davi d Bemstor

f o n Februar

y 16 , 2010 . Th

e petitio n requeste d exemptio n fromthe requirementf

i o f § 23.783(f)(1 ) o f

Titl e 14 . Cod

e o f Federa l Regulation s (1 4 CFR) . Tli e exemptio n wa s originall y granted o

n June 10 , 2010 . The attache d amendmen

t change s th

e section cited within the decisio n paragrap h fro m § 23.781(f)(1 ) t

o § 23.783(f)(1) , whic

h i s the correc t

section . Than

k you fo r catchin g th

e error , Th e amendmen

t to th e gran

t o f exemption allow s Hawke

r Beechcraf t Corporation t

o obtain certificatio n o f

th e mode l 390- 2 wit

h amai n doo r widtl i les s tha n tha t specified i

n 1 4 CF R par t 23 . I f yo u have an y question s o r

furthe r concerns , pleas e contac t

Mr . Le s Taylor

a t the abov e addres s o r cal l hi mo n 816-329-4134 . Sincerely , ^o^i mSmit

h Manager , Smal

l Airplan e Diiectorate Aircraf t Certificatio n Servic e Enclosur e06/24/201 0 16:4 7 816329410 6 SA D PAG E 03/0 5

Exemptio n No . 10078 A UNITE D STATES O

F AMERICA DEPARTMEN

T O F TRANSPORTATION FEDERA L AVIATION ADMINISTRATION WASHINGTON , D C 2059 1

I n th e matte

r o f the petitio n o f HAWKE R BEECHCRAF T CORPORATIO N fo r a n exemptio n from § 23.783(f)(1 ) ofTitlel4 , Codeo f Federa l Regulation s Regulator y Docke t No . FAA-2010-021 6

AMENDMEN T T O GRANT O F EXEMPTIO N B y lette r date d Febmar

y 16 , 2010 , Mr . David Bernstorf , Vic e President

Safet y an d Certification , Hawke

r Beechcrafl . Corporation , 970 9 Central , P.O . Bo x 85 , Wichita , KS , 67201-008 5 petitione d th e Federa l Aviatio n Administratio n (FAA ) o n behal f o f Hawke r Beechcraf t Corporatio n fo

r a n exemptio n fro

m§ 23.783(f)(1 ) o f

Titl e 14 , Cod

e o f Federa l Regulation s (1 4 CFR) . Th e propose d exemption , i f granted , woul d allo w tli e certificatio n of the mode l 390- 2 wit

h amai n door

widt h les s tha n tha t specifie d i

n 1 4 CFR par

t 23 . Tli e exemptio n wa s grante d o n Jun e 10,2010 . Afte r th e FAA grante d th e exemption . Hawke r Beechcraf t Corporatio n foun

d a n erro r i n th e exemptio n decisio n language . Th e decisio n languag e cite s § 23.781(f)(r ) instea d of § 23.783(0(1) , a s i t

should , Thi s amendmen

t coiTCCt s tha t error , Th e petitione r

request s relie f

fro mth e followin g regulation : Section 23.783(f)(1 ) prescribes , i n pertinen t part , tha t eac h passenger

entr y doo r must qualif y as afloor

leve l emergenc y exit

and hav e arectangula

r openin g wit

h awidt h not les s theo i 2 4 inches . Th e petitione r

support s it s reques t

wit h th e followin g information : (NOTE : Th e followin g i s fro mth e petitioner' s lette r of Februar y 16 , 2010. ) ACE-10-r81- E06/24/201 0 16:4 7 815329410 6 g^ D PAG E 04/0 5

"HB C [Hawke

r Beechcraf t Corporation ] request s a

n exemptio n t o the requirement s outline d abov e fo

r the Hawke

r Beechcraf t mode l 390-2 . "The model 390- 2 entr

y doo r ha s basi c dimension s greate r tha n th e minimumrequire d b y 1 4 CF R § 23,783(f)(l) . Th e total are ao f the model 390- 2 cabi n door openin g minu s tli e are aoccupie d b y localize d projection s i s greate r tha n the minimu mare arequire d b y 1 4 CF R § 23.783(f)(1) ; however , the minimu mwidt h dimensio n canno t

b e me t a t discret e point s du e t o th e protrusions . "HB C wil l conduc t

a n egres s tes t

pe r 1 4 CF R § 23.803 . Th e egres s tes t wil l demonstrat

e th e 390- 2 entiywa

y dimension s provide enoug h ope n are aa s t o allo w saf

e exi t o f th e airplane . Servic e histor

y ha s been reviewe d an

d n o issue s hav e been shown wit h the cabin doo r evacuatio n du e to tli e protrusion s fo r th e model 39 0 in an

y accidents/incident s wher

e egres s wa s demonstrated . "HB C propose s tha

t a n exemptio n b e based o

n the mode

l 390- 2 entr

y door' s basi c dimension s and open are ai n exces s o f

the minimu

mrequire d b y 1 4 CF

R § 23.783(f)(1 ) an d o n th e successful demonstratio n o f egress. " A summar y o f th e petitio n wa s publishe d i n th e Federa

l Register o n Apri l 9 , 201 0 (7 5 F R 18255) . N o comment s wer e received . Th e FAA' s analysi s i s a s follows : The FA A find s tha

t th e door and maximumoccupancy ar e unchange d fro

mth e earlie

r mode l 39 0 an d servic e histor

y indicate s ther

e ha s bee n n o issu e wit

h emergenc y evacuatio n fo r th e raaximuiT) eight

occupants . Tlierefore , w e find tha t thi s exemptio n wil l no

t adversel y affec t safet y an d wil l provid e alevel o

f safet y equivalen

t to th e regiilation . Th e FAA' s Decisio n I n consideratio n o f

th e foregoing , I fin

d tha t agran t of exemptio n i s i n th e publi c interest . Therefore , pursuant t o th e authorit

y containe d i n 4 9 U.S.C . § § 4011 3 an d 44701 , delegate d t

o me b y th e Administrator , Hawke r Beechcraf t Corporatio n i s grante d a

n exemptio n fro

m1 4 CF R § 23.783(f)(1 ) t

o th e exten

t necessar y t o allo w Hawke

r Beechcraf t Corporation t

o certif y th e mode l 390- 2 i

n the commute

r category , subjec t

to th e condition s an d lim,itation s liste d below .06/24/201 0 16:4 7 816329410 6 2^1; , PAG E 05/0 5

Condition s an d Limitation s 1 . Passenger

briefin g card s wil l b e o

n boar d to explai n th e operatio n o f th e exit . 2 , Occupanc y o f

th e airplan e i s restricte d t

o maximu m2 cre w seat s and 6 passenge r seats . Issue d i n Kansa s City , Missour

i o n Jun e 24 , 2010 .

John Colom

y Actin g Manager , Smal l Airplan e Directorat e Aircraft : Certificatio n Ssrvlc e



# J