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# I/o Federal Aviation Administration 14910-13-PJ DEPARTMENT OF TRANSPORTATION

Airworthiness Directives; The Boeing Company ModeJ 777-200, -300, and -300ER RJN 

### 2120-AA64 

# \'l11 [Docket No. FAA-2010-++++; Directorate Identifier 2010-NM-187-AD]

SUMMARY: We propose to adopt anew airworthiness directive (AD) forthe products listed above. This proposed AD would require installing an auto shutoff feature forthe center override/jettison fuel pumps; and installing power control circuitry forthe center Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice ofproposed rulemakillg (NPRM).

override/jettison and mainjettison fuel pumps. This proposed AD would also require installing new software in the electrical load management system (ELMS) electronics 1l<lIIl'INOSYMOOL.



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units incertain power management panels; installing airplane information management system 2 (AIMS~2) software inthe AfMS-2 hardware; and making certain wiring changes. This proposed AD was prompted by results from fuel system reviews conduct I'[IA1.5'iil" by 

### the manufacturer. We areproposing this ~ to prevent thepotential ofignition om 

### sources inside fuel tanks, which, in combination with flammable fuel vapors, could regu l!flN(;SV ••"Ol. 

### in afuel tank explosion and consequent loss ofthe airplane. DATES: We must receive comments onthis proposed AD by [INSERT DATE 45 DAYS AFTER DATE OF PUBLICATION INTHE FEDERAL REGISTER]_ ADDRESSES: You may send comments by any ofthe following methods:
•Federal cRulemaking Portal: Go to http://,,,,,,"'w.regulations.gov. Follow the instructions forsubmitting comments.14910·13 ...1'1 DEPAnTi\1ENT OF TRANSPORTATION



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### ""',£ by Ihe manufaclurer. We arc proposing this AD 10prevenl the potential of ignitioll 14ern Part 39

• Fl'deral eRu1cmaking Portal: Go to hllp:l!www.relwlations.!.!o\.. Follow the installing new sofiWllrc in the eleetricalload m:lllllgcment system (Ell"tS) d('(:lronics II}OI:kt'tNo. FAA·2010·+-H-+; DirectOnlle Identifier 2010-NM-181-ADI

ADDnESSES: You may send eommt."nls by any uflhe fol1owill~ methods: Federal '\\"30011 Administration

Airworthiness Directive:<;; The Boeing CornpilflY Model 777·200. -300, and -300ER

in a fucll<lnk e.-.:plQsionand eonsequcm loss of the ilirplanc. R(N 2120-AA64

""<'lIwr\1I'crridc:ljcllison fuel pumps, ilnd instl1ll\ng powel' con'trol dl'euilry for the c\;nler ovcrriddjclIisoll and main jettison fuel pumps. nlis proposJ AD would also require Serres Air[1l,m~

units in certain power managemcru panels; installing airplane informatiOll mall:lgcment

il1S1l'UCiiollS for submitting commems. sy~tcrn 2.(~\~MS':!)

soHware in the A1MS·2 hardwar('~ and ITkin!! certain.wiring dl:lIlgCS. rhIS pl'oposed :\D was prompted hy resulls tram fud system reViews conducted

sources inside fuel tanks., which, in combinarion wi1h l1ammable fud vapors, could result 0" TES: We Inustn:ecive comments on Ihis proposed AD by [INSERT DATE 45 DAYS Af--I"ER DATE OF PUBLICATION IN TilE FEDERhL REGISTER 

### I. AGENCY: Fedol',,1 Aviation Administratioll (FAA). DOT. ACTION: Notice of proposed rulemaking (NPRM), SUMMARY: We propose to adopt anew ain\'orthincss directive (AD) for thc products lisk·d above. 111isproposed AD would require ins!.<lllingan auto shutoff feawre for the14910-I3-P] DEPARTMENT OF TRANS PORTAnON ·O>il"tI<,,-·r.F~ 

### "'''''''-'''IIV< Federal Aviaf.ionAdministration 14CFR Pal-t 39 

# I [Dorket No. FAA-2010-++++; Directorate IdFntificr 2010-NM-I87-ADI RlN 2120-A.-\64 Airworthiness Directives; The Boeing Company Model 777-200, -JOO,and -300ER 

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actions, this proposed AD would require installing new ACTION; Notice ofproposed l"ulcmaking (NP~1). SUMi'I •. IARY: \Vepropose to adopt a new airwonhiness directive (AD) for the products -- 

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## ,If 0 listed above. This proposed AD would require installing an auto shmoff featufe forthe •• ,.••,....• ...,. center override/jettison fuel pumps; and installiig powcr control circuitry forthe center override/jetlison and mainjettison fuel pumps. Prior to or concurrently \vith those Series Airplanes

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oflertl:tlEma! t"lelg:hlR'lconfig~ra{iop. software in the electrical load management 

## ~., system (ELMS) electronics units incertain power management panels; Installing the I airplane ~nfomult~on l~l~nageIllCJlt SYSI~m 2 (A1rS-2) sofiware in the AIMS-2 h,~nlware ">li1l""5'~"'''. and makmg certmn wtnng changes. ThISproposed AD was prolllpted by results tram fu 

### ;~"""c'L'''''' system reviews conducted bythe manufacturer. 1Ne are proposing this AD to~-pre\'cn >'IT the potential ofignition sources inside fuel tanks, which, incombination wilh Oammabl fuel vapors. could result ina luel tank e,plosiol and con<e'lucnt loss orthe "irpbne. DATES: \"iemust receive comments on this pr0poscd AD by [INSERT DATE 45 DAYS AFTER DATE OF PUBLlCATION INTHE Federal Register]. AUDRESSES: You may send comments byany ofthe following methods: 

# \, .- \. ...-----_114910-13-P) DEPARTMENT OF TRANSPORTATION :o«oJ~~"n::r<s .0\1EN<: 5'''&0\. Federal Aviation Administration 14CFR PaTt 39 (Docket No. FAA-20tO-++++j Directorate ld~nti.fier ZOIO-NM-187-ADJ RIN 2120-AA64 

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Ain ••.. orthincss Directives; The Boeing Campal y MOd,,:l77i-200. -300, and -300ER Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking 

### (NPiM). SUMMARY: We propose to adopt anew airworthiness directive (AD) forthe products listed above. This proposed .W would require installing an auto shutoff fc-atureforthe 

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IN!TL'.'-"ISIG cent'croverride/jettison fuel pumps; and installing power control circuitry for the center overrlde/jelllson and main jelllson fl'ei pumps. friar to or concurrently with those actions, this proposed AD would require installing new . BO,,"epeJ'atieflftf-t,wegram e-8Rfig\:lratieR software in the electrical load managcmem system (ELMS) electronics units incertain power management panels; installing the 

# I airplane infomultion management system 2 (AlrSw2) software in the AIMS-2 hardware and making certain wiring changes. This proposFd AD was prompted by results from fu sysiem reviews conducted by the manufacturer.

# Ieare proposing this AD toJ.Ae'preven 

# .~ tJle potential ofignition sources inside fuel tanks, which, in combination with nammabl fuel vapors, could result Ina fuel tank eXPIoslonland consequent loss of the ,"rplane. DATES: We mllst receive conmlcnts on this PTlposed AD by [INSERT DATE 4S DAYS AFTER DATE OF PUBLICA nON INTHE Federal Register]. 

# I - ADDRESSES, You may send comments by an1 ofd,C following method" 

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