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Federal Aviation Administration DEPARTMENT OF TRANSPORT AnON 

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simulations that the climb gradient is less than optimal for obstacle clearance during a performance-limited takeoffsituatioll. We are issuing this AD to prevent inadvertent engagement ofthe autopilot during takeoff roll, which could result inrejected takeoff at rotation speed, and consequent possible overrun ofthe runway. We are also issuing this AD to prevent alower-than-optimal climb gradient during takeoff, and consequent failur -300ER, and 777F Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT.

777-200, -200LR, -300, -300ER, and 777F series airplanes. This AD requires installing Airworthiness Directivesj The Boeing Company Model 777-200, -200LR, -300,

ACTION: Final rule; request for comments. SUMMARY: We are adopting anew airworthiness directive (AD) for certain Model

to clear obstacles on the ground during aperfonnance-limited takeoff. DATES: This AD iseffective [INSERT DATE 15 DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL REGISTER]. lIT''''' SYMBOL The Director ofthe Federal Register approved the incorporation by reference ofa [Nrn,,,.,I.\IG certain publication listed inthe AD as of [INSERT DATE 15DAYS AFTER DATE OF m PUBLICATION INTHE FEDERAL REGISTER].(4910-13-Pj

DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14eFR Part 39 IDocket No. FAA-2010-++++; Directorate Identifier 2010-NM-043-AD; Amendmen 39_*'; AD **] RIN 2120-AA64 Ainvorthincss Directives; The Boeing Company Model 777-200, -200LR, -300, -30GER, and 777F Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request forcomments. SUMMARY: We are adopting anew airworthiness directive (AD) for certain Model 777-200, -200LR, -300, -30GER, and 777F series airplanes. This AD requires installing new operational program software forthe autopilot flight director computers. This AD -ONr.URREN[ES OUTING SYM~Ol 

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### rol{ engagement ofthe autopilot -pfi.eF-t& takeoff, which could result inrejected takeoff at I' " rotation speed, and consequent possible overrun orthe runway. We are also issuing this AD to prevent alower-than-optimal climb gradient during takeoff, and consequent failu 

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## ,'- DATES: This AD iseffective [INSERT DATE 15DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL REGISTER]. The Director ofthe Federal Register approved the incorporation by reference of certain publication listed inthe AD as of [INSERT DATE 15 DAYS AFTER DATE Of PUBLICATION INTHE FEDERAL REGISTER]. NlT'.M5ISIG

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DEPARTMENT OF TRANSPORTATION Federal Aviation Administration :GOCUAAl;HCIES nN(i Sl'HIlOL 14CFR Part 39 

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, OIJT!NG SYMBO\. DATES: This AD iseffective [INSERT DATE 15DAYS AFTER DATE OF PUBLICATION INTHE FEDERAL REGISTER]. The Director ofthe Federal Register approved the incorporation by reference of certain publication listed inthe AD as of [INSERT DATE 15 DAYS AFTER DATE OF OIiTlNG sYMBOl PUBLICA nON IN THE FEDERAL REGISTER]. NmAlSfSIG