( ^ Ronal d J
. Hinderberge rTh e Boein g Compan y Lead Administrato rP.O
. Bo x370 7 M C 67-L R Delegate d Compliance Org
. Seattle , W A 98124-220 7 Commercia l Airplane s 

### SE P

### 2 4 

### 201 0 BDCO-10-0197 6 , J ^^ ^ C O !^^0 ^ U.S . Departmen t

o f Transportatio n p , ^^:z : Docke t Managemen t

Syste mrd^Z ^ 40 0 7" ^ Street , SW , Roo mPL40 1 ^ ^M ^ Washington , D C 20591-000 1 ^ cr > Subject : Petitio n fo r Exemptio n fromTitl e 1 4 Cod e o f Federa l Regulation s sectio n 25.809(a ) at Amendmen t

25-11 6 Wit h Respec t

t o Certai n Requirement s for

th e Passenge r

Cabi n Model : 787- 8 Th e Boein g Compan y respectfull y submit s thi s petitio n for exemptio n from specifi c aspect s o f

Titl e 1 4 Cod e o f

Federal Regulation s Sectio n 25.809(a ) a t Amendmen t

25-11 6 for

alimite dnumbe r

o f 787- 8 airplane s a s describe di n th e summary below
. Th e enclosur e t o thi s lette r provide s th e detail s o f

th e petitio n i n accordanc e with Titl e 1 4 Cod e o f Federal Regulation s Sectio n 11.81 . Th e followin g summary i s provide dfor th e Federal Registe r

i n accordanc e with 1 4 CF RSectio n 11.81(f)
. Summar y fo r

Federa l Registe r Petitioner : Th e Boein g Company . Sectio n o f

1 4 CFRAffected : Sectio n 25.809(a)
. Descriptio n o f

Relie f Bein g Sought : Boein g i s requestin g relie f fromth e "al l lightin g conditions " elemen t o f Sectio n 25.809(a ) a

t Amendmen t

25-11 6 fo

r alimite dnumbe r

o f 787- 8 airplanes
. I f granted , thi s exemptio n wil l allo w sufficient tim e for Boein g to develop , certif y an dincorporat e int o productio n ane w exterio r lightin g syste mtha

t i s complian t with Sectio n 25.809(a)
. Th e exemptio n woul dallo w relie f fromth e "al l lightin g conditions " requiremen t

i n Sectio n 25.809(a ) for

787- 8 airplane s delivere do n o r befor e Decembe r

31 , 2013 . Very trul y yours ,

Christin e M . Thompso n Lea dProjec t

Administrator , Developmen t Project s (425 ) 266-6572 , M C 03-5 6 FAX : (425)294-934 0

# gL > Pag e 2 BDCO-10-0197 6

Enclosure : Petitio n for

Exemptio n from1 4 CF R25.809(a ) a t Amdt 25-11 6 c c Nam e Mr . Robert

Breneman Mr . Ke n Schroe r Mr . Al i Bahram i Mr . Fran k Tiangsin g Mr . Jef f Gardli n Mr . Do n Eiford Mr . Robert

Kaufma n Lette r

Pape r Pape r Pape r Pape r ED T ED T ED T Enclosure s

Pape r Pape r Pape r Pape r ED T ED T ED T Comment s

ANM-IOO S ANM-IOO S ANM-lO O ANM-11 5 ANM-11 5 ANM-150 S ANM-150 SEnclosur e t o BDCO-10-0197 6 Pag e 1 of4 Petitio n fo rExemptio n fro m Titl e 1 4 Cod e o f Federa l Regulation s (CFR ) sectio n 25.809(a ) a t Amendmen t 25-11 6 Nam e an d Addres s o f th e Petitione r CM
. Thompson , Manager , Lea d Projec t Administrator , Developmen t Project s Th e Boein g Company , P O Bo x3707 , Seattle , Washington , 9812 4 B , Sectio n o f th e Cod e o f Federa l Regulation s (CFRs ) tha t ar e affecte d A s provide d fo ri n 1 4 CF R 11.61(b) , Boein g hereb ypetition s fo rexemptio n t o th e followin g CF R fo rth e Mode l 787-8 : Regulatio n 1 4 CF R 25.809(a ) Amendmen t

11 6 Whic h Require s

...eac h emergenc yexi t mus t hav e mean s t o permi t viewin g of th e condition s outsid e th e exi t whe n th e exi t i s closed
. ...Mean s mus t als o b e provide d t o permi t viewin g of th e likel yarea s of evacue e groun d contact
. Th e likel yarea s of evacue e groun d contac t mus t b e viewabl e during al l lightin g condition s wit h th e landin g gea rextende d a s wel l a s i n al l condition s of landin g gea rcollapse
. Th e exten t o f relie f bein g sough t Regulatio n 1 4 CF R 25.809(a ) a t Amendmen t 11 6 Require s

Th e likel yarea s of evacue e groun d contac t mus t b e viewabl e during al l lightin g conditions prio rt o doo r opening
. Wh yRelie f i s Necessar y

Th e outsid e viewin g mean s a t th e passenge rcabi n emergenc y exit s ar e complian t wit h §25.809(a ) excep t tha t ther e i s n o exterio rlightin g syste m tha t illuminate s prio rt o th e exi t bein g opened
. Therefore , th e likel yarea s of evacue e groun d contac t ma yno t b e viewabl e i n nigh t tim e condition s prio rt o th e exi t bein g opened
. Th e desig n of existin g 787- 8 escap e slide mounte d exterio remergenc ylightin g syste m wa s establishe d befor e Amendmen t 25-11 6 becam e effectiv e fo rth e 78 7 program . Furthermore , th e FA Arecentl yformalize d guidanc e regardin g a n acceptabl e metho d of showin g a ne wexterio r lightin g syste m complian t wit h th e outsid e viewin g requirement s i n §25.809(a ) a t Amendmen t 25-116
. Therefore , i t woul d creat e a significan t burde n i f Boein g wer e require d t o incorporat e a ne wexterio remergenc ylightin g syste m o n th e earl yproductio n 787- 8 airplanes
. DescriDtio n of relie f souaht : Wit h thi s oetitio n fo rexemption
. Boein g i s requestin g relie f fro m th e requiremen t tha t th e likel y area s o f evacue e groun d contac t mus t b e viewabl e durin g al l lightin g condition s prio rt o th e passenge remergenc yexit s bein g opene d fo ra limite d numbe rof 787- 8 airplanes
. Thi s wil l allo w sufficien t tim e t o develop , certif yan d incorporat e int o productio n a ne w exterio rlightin g syste m tha t wil l enabl e al l subsequentl y manufacture d 787- 8 airplane s t o full ycompl ywit h §25.809(a ) a t Amendmen t 25-116
. Boein g wil l hav e th e ne wexterio rlightin g syste m incorporate d int o 787- 8 productio n lin e prio rt o th e en d o f 2013
.Enclosur e t o BDCO-10-0197 6 Pag e 2 of 4 D
. Descriptio n o f th e Issu e Th e Mode l 787- 8 certificatio n basi s wa s initiall yestablishe d at Amendmen t 25-112
. Boein g subsequentl yvolunteere d t o compl ywit h amendments throug h 25-11 6 an d certai n late ramendment s u p t o Amendmen t 25-12 8 wit h som e exceptions
. Boein g ha d initiall yelecte d t o kee p th e certificatio n basi s fo r§25.809(a ) a t Amendmen t 25 - 11 5 since th e exterio remergenc ylightin g syste m wa s alread yestablishe d a s a n integra l feature t o th e escap e slides
. However , as a resul t o f schedul e change s t o th e planne d typ e certificatio n dat e o f th e Mode l 787-8 , Boein g i s no wobligate d b

y §21.17(d ) t o includ e §25.809(a ) a t Amendmen t 25-11 6 i n th e certificatio n basi s o f th e Mode l 787-8
. Thi s wa s necessar ybecaus e th e effectiv e dat e o f thi s amendmen t no wfall s outsid e th e 5-yea rtyp e certificatio n applicatio n window fo ra transpor t categor yaircraft
. Productio n o

f th e initia l 787- 8 airplane s starte d prio rt o §25.809(a ) a t Amendmen t 25-11 6 bein g adde d t o th e model' s certificatio n basis
. Boeing' s previou s petitio n fo r exemptio n fro m §25.809(a ) at Amendmen t 25-11 6 fo rth e Mode l 78 7 wa s denie d b y th e FAA
. However , i n Denia l o f Exemptio n No
. 9957 , th e FA Aacknowledge d that there ma yb e meri t t o a n exemptio n that cover s a limite d numbe ro

f 787- 8 airplanes
. A s a result , Boein g has reconsidere d it s positio n an d i s no w requestin g relie f fro m th e "al l lightin g conditions " elemen t o f §25.809(a ) fo ra limite d numbe ro f 787- 8 airplanes
. I f granted , thi s exemptio n wil l allow sufficien t tim e fo rBoein g t o develop , certif yan d incorporat e int o productio n a ne w exterio rlightin g syste m that i s complian t wit h §25.809(a ) at Amendmen t 25-116
. Note : thi s request fo rpartia l relief i s specifi ct o th e 787- 8 mode l sinc e a full ycomplian t exterio rviewin g lightin g syste m i s planne d fo ral l 787- 9 airplanes
. As a resul t o

f discussion s wit h th e FA Aan d th e recen t releas e o f th e FA Ametho d o

f complianc e guidanc e fo rth e Mode l 787 , th e exterio rviewin g lightin g syste m requirements hav

e bee n clarifie d an d ar

e no w understood
. Boein g has release d a specificatio n contro l documen t fo rth e ne w syste m an d i s currentl ycompletin g th e supplie rselectio n process . Once selected , th e supplie rwil l assis t Boein g wit h th e development , qualificatio n an d certificatio n o f th e ne wfuselage-mounte d exterio r viewin g lightin g system
. Developmen t an d incorporatio n o f a ne wemergenc

y lightin g system , whic h wil l take severa l years , normall yoccur s durin g th e developmen t phas e o

f a ne w airplan e program . Th e 78 7 wil l experienc e adde d complexitie s an d schedul e challenge s as integratio n o f th e ne w lightin g syste m mus

t b e incurre d durin g th e productio n ramp-u p stag e o f th e program . Th e ne

w lightin g syste m mus

t b e compatibl e wit h th e 787' s advance d syste m architecture , newtechnolog ypowe rsupplie s an d aircraf t software , as wel l a s ne

wstructura l materials
. Since productio n airplan e availabilitycouple d wit h system s integration , on-aircraf t testin g an d certificatio n phase s ca n significantl yimpac t th e schedule , Boein g i s pursuin g alternativ e off-aircraft tes t method s t o minimiz e th e amoun t o f actua l testin g that i s require d o n a productio n aircraft
. Thi s approac h wil l ensure that th e ne wsyste m ca n b e full ycertifie d an d incorporate d int o productio n a s earl ya s possibl e i n th e 201 3 tim e frame
. A s note d i n Denia l o

f Exemptio n No
. 995 7 mentione d above , th e FA Arecognize s that a retrofi t o

f a n existin g desig n t o compl ywit h th e outsid e viewin g requirements i n §25.809(a ) coul d b e costly
. Thi s was acknowledge d whe n Amendmen t 25-11 6Enclosur e t o BDCO-10-0197 6 Pag e 3 of4 was initiall ypropose d an d adopte d an d considere d i n th e decisio n fo rn o retrofi t requirements fo rin-servic e aircraft
. I n addition , implementatio n o f provision s fo rth e exterio rlightnin g syste m an d associate d penetration s mus t b e incorporate d i n th e buil d proces s wel l befor

e rollout
. A numbe ro

f airplane s ar

e complet e an d productio n wil l continu e prio rt o th e availabilityo f th e lightin g syste m provision s an d penetratio n definitions
. A s such , Boein g requests that there b e n o retrofi t requiremen t fo rth e 787- 8 airplane s delivere d withou t th e ne w exterio rviewin g lightin g system
. Statemen t o f N o Advers e affec t o n Safet y Th e FAA' s state d inten t wit h th e ne w outsid e viewin g requirement s introduce d a t Amendmen t 25-11 6 wa s not t o addres s a know n safet yissue , bu t rathe rt o upgrad e th e regulation s t o improve th e overal l leve l o f safet yi n area s wher

e th e state-of-the ar t an d goo d desig n practic e hav e indicate d that suc h upgrade s ar e warranted
. Th e 78 7 wa s originall ydesigne d wit h larg e passenge rdoo rwindows i n combinatio n wit h a n escap e slide-mounte d exterio remergenc ylightin g system s that ar e simila rt o th e exterio rlightin g system s commonl yuse d i n man ytranspor t categor yaircraf t typ e certifie d prio rt o th e 787-8
. Th e larg e 787- 8 passenge rdoo rwindows provid e fo ra wide , undistorte d viewin g are a an d ar e a n effectiv e mean s fo rquickl yassessin g condition s outsid e th e emergenc yexi t prio rt o th e emergenc yexi t bein g opened
. Th e 78 7 passenge rdoo rwindows are nearl y500 % large rtha n th e vas t majorit yo f exi t doo rwindows i n servic e today
. Large rwindows mak e i t easie rt o recogniz e th e presence o

f a n externa l fir e o rothe rhazard s that shoul d b e considere d whe n determinin g whethe ro rno t t o ope n th e exi t durin g a n emergency . Therefore , th e propose d limite d numbe ro f 787- 8 airplane s that wil l b e operate d withou t th e ne w fuselage-mounte d exterio remergenc ylightin g syste m wil l provid e a leve l o f safet y that i s superio rt o that provide d o n man yo f th e transpor

t categor yaircraf t currentl y i n production
. Statemen t o f Publi cInteres t Grantin g thi s petitio n i s i n th e public' s interes t becaus e i t woul d allow adequat e tim e fo rBoein g an d it s supplie rt o develo p a n effectiv e desig n solutio n t o th e exterio r lightin g syste m requiremen t that becam e applicabl e t o th e Mode l 78 7 afte rth e airplan e developmen t progra m complete d fir m configuratio n o f th e 787
. Conversely , i f th e requeste d relie f i s no t granted , th e additio n o

f a ne wfuselage-mounte d lightin g syste m a t thi s lat e stag e o

f th e airplan e developmen t progra m woul d lea d t o a significan t delayt o th e deliverie s o f Mode l 787- 8 airplanes
. Th e publi cinterest wil l b e advance d b

yth e gran t o

f Exemptio n a s i t i s i n th e best economi cinteres t o f th e Unite d States
. Man y78 7 customer s ar e overseas . Furthe rdeliver ydelays o

f th e 787- 8 ar e not i n th e interest o

f th e publi cdu e t o th e potentia l negative impac t t o expor t sales , th e balance-of-trade , th e gros s domesti cproduc t an d economi c healt h o f th e Unite d States
.Enclosur e t o BDCO-10-0197 6 Pag e 4 o f 4 Reques t fo rWaive ro f Publicatio n Th e petitione rrequests that thi s petitio n fo rexemptio n not b e delaye d b yth e publi c proces s since there i s goo d caus e t o waive th e publicatio n an d commen t requirement s as allowe d b y§11.87
. Du e t o th e schedule d deliver yo f th e firs t 787- 8 bein g i n earl y2011 , a dela yi n processin g thi s exemptio n coul d potentiall yresul t i n a dela yo f th e 787-8' s entr

y int o service
. Additionally , there wer e n o pubi ccomment s receive d i n th e previou s petitio n fo rful l exemptio n fo rth e Mode l 787 , wherei n th e FA Aacknowledge d that there ma yb e meri t t o a n exemptio n that cover s a limite d numbe ro

f 787- 8 airplane s (Denia l o f Exemptio n N o 9957)
. Since n o comment s wer e receive d fo rth e previou s ful l exemptio n petition , i t i s anticipate d n o comment s woul d b e receive d fo rthi s limite d petitio n fo rexemption
. H
. Privilege s o f thi s Exemptio n Outsid e th e Unite d State s Pe r1 4 CF R 11.81(h) , Boein g requests that th e privilege s o f thi s Exemptio n b e extende d outsid e th e Unite d States
. Thi s extensio n o f privilege s i s necessar

yfo r operation s base d withi n foreig n countrie s havin g bilatera l agreement s wit h th e Unite d State s acceptin g FA A1 4 CF R Par

t 2 5 a s thei rainworthines s standard s fo r transpor t categor yaircraft
. Th e 787- 8 i s intende d fo rth e globa l market place wit h a launc h custome rbase d i n a countr yutilizin g th e Unite d State s ainworthines s standards
. I
. Conclusio n Al l Mode l 787- 8 passenge rdoor s hav e outsid e viewin g windows that ar e size d an d positione d t o allowfo ra quic k assessmen t o

f externa l conditions
. Thi s include s th e are a wher

e th e evacuee s woul d normall yb e expecte d t o mak e contac t wit h th e groun d whe n th e airplan e i s positione d a t a norma l attitud e o ra

t th e advers e attitude s that correspon d t o th e los s o f on e o rmor

e leg s o f landin g gear . Th e larg e siz e o f th e 787- 8 doo rwindows , compare d t o th e majorit yo f emergenc

yexi t windows i n service today , allows fo rgroun d viewin g withou t th e nee d fo ra pris m o r an yothe rviewin g aid s that ca n distor t th e view ou t o

f th e window
. As discusse d above , passenge ran d crewsafet ywil l not b e appreciabl yaffecte d b ya gran t o

f exemptio n i n thi s case . Since Amendmen t 25-11 6 becam e effective fo rth e 78 7 progra m afte rth e existin g 78 7 emergenc ylightin g syste m desig n wa s established , an d §25.809(a ) at Amendmen t 25-11 6 wa s onl yrecentl yadde d t o th e certificatio n basi s o f th e 787-8 , additiona l tim e i s neede d t o develo p a ne w exterio rlightin g syste m that wil l allowth e 787- 8 passenge rexit s t o full ycompl ywit h th e outsid e viewin g requirements i n §25.809(a ) at Amendmen t 25-116
. Accordingly , Boein g respectfull yrequests that a n exemptio n i s grante d t o allow relief fro m th e "al l lightin g conditions " requiremen t i n §25.809(a ) at Amendmen t 25-11 6 fo r787- 8 airplane s delivere d o n o rbefore Decembe r31 , 2013
.