### 14CFR Part 39 [491ll-13-P DEPARTMENT OF TR>.NSPORTATION Federal Aviation Administration



# 003L/ (Docket No. FAA-2011-++++j Directorate Identifier 201O-NM-021-AD) R1N2120-AA64 Airworthiness Directives; The Boeing Company Model 777-200 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice ofproposed rulemaking (NPRM). SUMMARY: Wepropose to adopt anew airworthiness directive (AD) forcCltain 

### Mo 777-200 series airplanes. This proposed AD w6uld require installing anew circuit breaker, relays, and wiring to allow the flightJew to turn offelectrical power tothe in flight entertainment (IFE) systems and other non-essential electrical systems through a switch inthe flight compartment, and doing other specified actions. The actions indud removing the cabin system control panel (CSCP) core partition software, the cabin are control panel (CACP) operational program software (OPS), the zone management unit (ZMU) OPS, andthe cabin system management unit (CSMU) OPS; installing OPS for the CSCP, CACP, ZMU, andCSMU; and installing the new configuration database I 

### (COB). This proposed AD would also require installing anew CSCP; installing anew cabin management system (CMS) CDB; and installing new OPS forthe CSCP, ZMU, passenger address controller, cabin interphone controller, CACP. speaker drive modul overhead electronics units, and seat electronics unit. This proposed AD results from an in·flight entertainment (!FE) systems review. We areproposing trus AD to ensure that the flightcrew isable to turn offelectrical power to the lFE system and other nooessential electrical systems through aswitch inthe flight compartment inthe event of 

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smoke or flames. The flightcrew's inability toturn offelectrical power to the IFE system and other non-essential electrical systems inthe event ofsmoke or flames could result in
FAA Form 1360·14.1 (6.B9) OFFICIALFILECOPY 1:tu.s_ GOVERNMENT PRINTINGOffiCE: '995·769-211

### DEPARTMENT OF TRANSPORTATION Federal Aviation Administration .O"':U~~H,r,,-~ OU'INl;"S'''OO' 

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# ,p <U"lell.( (Docket No. FAA~201 0-++++; Directorate Identifier 201O-NM-021-A,Dj Rl::'ol2120-AA64 Airworthiness Directives; The Boeing Company Model 777-200 Series Airplanes ACENCY: Federal Aviation Adminislration (FAA), DOT. 14erR Part 39



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### ,>5 switc.h in the flighl compartment. and doing other specilied actions. The aCltons includ~ 

# mL~"¥'-" removing the cabin system control panel (CSCP) core partition software, the cabin area ,~ ACTIOi\: Notice ofproposed rulemaking (NPR!\1).

, SUMMARY: We propose Laadopt anew airworthiness directive (AD) for certain Model 777-200 series airplanes, This proposed AD wo+ require installmg anew circuit b~caker, rela~s, and wiring to allow the tlightcrCJ' to tur,noffcleclrical power lothe inflight entertamment (IFE) systems and other non'"-cssentlal electncal systems through a 

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# " I essential electrical systems through aswitch in the night compartment in the event of overhead electronics units, and seat electronics unit. TIlis proposed AD results from an in-flight entertainment (!FE) systems review. We are proposing this AD to ensure thai

and other non-essential electrical systems in the event of smoke or names could result in smoke or flamcs. The flightcrew's inability to t rn off electrical power to the TFEsystem (ZMU) OPS, and the cabin system managemeni(unit (CSMU) OPS; installing OPS for the CSCP, 

### CAep, ZMU, and CSMU; and install~ng the new con~guration database (COB). This proposed AD would also require inktalling a new CSCP; installing anew cabin management system (eMS) CDB; and installing new OPS forthe CSCP, ZMU. passenger address controller, cabin interphone Jntrollcr, CAe?, speaker drive module, control panel (CAep) operational program software (OPS), the zone management units