# a > Ronal d J
. Hinderberge r Lead Administrato r Regulator yAdministratio n Commercia l Airplane s Th e Boein g Compan y P.O
. Bo x370 7 M C 03-5 2 Seattle , W

A 98124-220 7


### JU L 2 3 2Qt t RA- l 1-0391 5 U.S
. Departmen t

o f Transportatio n Docke t Managemen t

Syste m 120 0 Ne w Jerse y Avenue , S E Wes t Buildin g Groun dFloor , Roo mW12-14 0 Washington , D C 2059 0 o - >
U J C D —O 

## o o
Subject : Model : Reference : Reques t for Amendmen t

t o FA A Exemptio n No
. 1026 8 Provisio n No
. 1 787- 8 FA A Exemptio n No
. 1026 8 (Regulatory Docke t No
. FAA-2010-1284) , issue do n May 19,2011
.
Th e Boein g Compan y respectfull y request s an amendmen t t o provisio n # 1 o f

th e referenc e exemption
. Th e FA A decisio n include dth e followin g provisio n i n grantin g th e exemption : ^''Fo r Mode l 787- 8 airplane s grante dacertificat e o f airworthines s before Jun e 30 , 2014 , th e Airworthines s Limitation s sectio n o f th e Instruction s fo r

Continue d Airworthines s mus t

includ e alimitatio n tha t

require s operator s t o verif y contaminant s hav e no t

accumulate do n th e fue l straine r locate dupstrea mo f

th e engin e drive n fue l pump . Th e procedure s mus t

b e accomplishe dafte r

th e firs t fligh t followin g an y maintenanc e action s tha t resul t i n personne l entry int o th e cente r win s fuel tan k

an dbefore th e nex t

flight
. The limitatio n mus t als o requir e a n inspectio n o f

th e fue l coole doi l coole r i f th e fue l straine r

ha s bypasse dfuel. " Th e curren t

provisio n onl y allow s for on e flight

cycl e before all engine s ar e require dt o b e inspecte dbefore th e nex t flight. Th e amendmen t

t o thi s provisio n i s requeste dt o allo w for

flight hours , instea do f

flight cycles , t o b e use dfor

th e physica l inspectio n interva l o f th e fiiel straine r

an dt o limi t

th e physica l inspection s t o asingl e engine
. Thi s amende dprovisio n woul db e me t by thre e separat e inspections :

• Inspectio n o f

th e Engin e Indicatio n an dCre w Alertin g Syste m(EICAS ) an dOperationa l Health Monitorin g Syste m(OHMS ) message s t o detec t any bypas s o r

impendin g bypas s at

th e fuel strainer s after

th e firs t flight;
• Physica l inspectio n o f th e engin e fuel straine r

after 2 0 flight hour s fo r th e first engine ;^
. Pag e 2 Mr
. Breneman RA- l 1-0391 5

• Physica l inspectio n o f th e engin e fuel straine r

after 4 0 hour s for

th e secon dengine
. Th e rational e for

requestin g thi s amendmen t i s t o ensur e tha t

th e engines ar e operate do n cente r

tan k fliel for sufficient tim e for any maintenanc e relate d contaminant s t o b e capture db y th e engin e fuel strainers , whil e allowin g adherenc e t o th e bes t

practice s o f

avoidin g commo n multipl e engin e maintenance
. Ver y trul y yours ,

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# CvujtA.^M^ ^ ChristinVM
. Thompso n Lea dProgra mAdministrator , Developmen t Project s (425 ) 266-6572 , M C 03-5 6 FAX : (425)294-934 0

c c Nam e Ke n Schroe r Al i Bahram i Jo n Regimba l Sherr y Veve a Davi dSola

r Ke n Fontain e Lette r

Paper/ED T ED T ED T ED T ED T ED T Enclosure s

Yes ED T ED T ED T Ye s Ye s Comment s

ANM-IOO S ANM-IOO S ANM-140 S ANM-140 S EAS A EASA