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DEPARTMENT OFTRANSPORTATION Federal Aviation Administration _ONCURRENCES ROUn"G SYMBOL

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ACTION: Notice ofproposed ruJemaking (NPRtvI). (DOT). AGENCY: Federal Aviation Administration (FAA), Department ofTransportation Airworthiness Directives; The Boeing Company Model 767 Airplanes

that applies to certain Model 767 airplanes. The-existing AD currently requires, for 14CFR Part 39 

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SUMMARY: The FAA proposes to supersede an existing airworthiness directive (AD). IN]T1ALSISl

OUTING SYM~OL ofthe slat track housing ofthe wings. For certain other airplanes, the existing AD certain airplanes, reworking the bonding jumper assemblies on the drain tube assemblies, Routin~ Symoo' 

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# ~J requires repetitive inspections ofthe drain tube assemblies ofthe slat track housing ofth wings to find discrepancies, corrective actions ifnecessary, and tennina1ing action for thI 

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include additional airplanes. This proposed AD results from (1) reports offuel leaks repetitive inspections. This proposed AD would also require replacing the drain tube assemblies. For certain airplanes, this proposed AD would also require installing an

speed; (2) reports ofabonding jurnper assembly ofcertain drain tubes that did not meet the wings, which could result in afire when the airplane is stationary, ortaxiing at low additional electrostatic bond path for the number 5 and 8inboard slat track drain tube RO~ ,,*1; SYMBOl assemblies. For certain other airplanes, this proposed AD would also require reworking 

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# Nt1-// from certain drain locations ofthe slat track housing near the engine exhaust nozzles of the bonding jumper assembly. This proposed AD would also revise the applicability 10

bonding specifications and could result in electrostatic discharge and an in-tank ignition I source; and (3) reports offuel leaks onto the main landing gear (MLG) as aresult ofa[4910-13-PJ

DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2010-++++j Directorate Identifier 2010-NM-062-ADJ RIN 2I20-AA64 Ainvorthiness Directives; The Boeing Company Model 767 Airplanes AGENCY: Federal Aviation Administration (FAA), Department ofTransportation (DOT). ACTION: Notice ofproposed rulemaking (NPRM). out'

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## /1'2- OUTj~GSYMB L SUMMARY: The FAA proposes to supersede an existing airworthiness directive (AD) INmAlS/S1G that applies to certain Model 767 airplanes. The existing AD currently requires, for DAlC ofthe slat track housing ofthe wings. For certain other airplanes, the existing AD certain airplanes, reworking the bondingjumper assemblies onthe drain tube assemblies Q",;n~$',,,,oot 

## -At:b wings to find discrepancies, corrective actions ifnecessary, and terminating action for th repetitive inspections. This proposed AD would also require replacing the drain tube requires repetitive inspections ofthe drain tube assemblies ofthe slat track housing ofth

assemblies. For certain airplanes, this proposed AD would also require installing an additional electrostatic bond path forthe number 5 and 8inboard slat track drain tube ounN" $YMeOL assemblies. For certain other airplanes, this proposed AD would also require reworking r<lTlAl.5/SIG the bondingjumper assembly. This proposed AD would also revise the applicability to include additional airplanes. This proposed AD results from (1) reports offuel leaks ounNG SYMBOL from certain drain locations ofthe slat trackhousing near the engine exhaust nozzles of the wings, which could result in afire when the airplane is stationary, ortaxiing atlow speed; (2) reports of abonding jumper assembly of certain drain tubes that did not meet 

## '" bonding specifications and could result inelectro,static discharge and an iORtank ignition OUTING SYMBOL source; and (3) reports offuel leaks onto the main landing gear (MLG) as aresult of a