14910-I3-U] DEPARTMENT OF TRANSPORT AnON Federal Aviation Administration

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Airworthiness Directives; Lockheed Model L-lOll Series AiIplanes AGENCY: Federal Aviation Administration (FAA), Dlpartment ofTransportatioo (DOT). (Docket No. FAA-2008-+++++; Directorate Identifie Amendment 39-**; AD *;'- 

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ACTION: Final rule. SUMMARY: The FAA is superseding anexisting at irthiness directive (AD), whic applies to all Lockheed Model L-IOll series airplanes. ~hat AD currently requires an inspection afthe fuel level control switch, the fuel1eve\ antral switch wiring harness, 

# ~- and the wiring harness conduit fordamage, wear or Chaing, broken or missing O-rings, N= or indications ofelectrical arcing. That AD also requires replacement of acertain condl it 

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inthe fuel level control switch wiring hamess, installati n ofelectrical sleeving over th ITINGSYMlJOL fuel level control switch wiring hamess, and installation oftlle fuel level control switch which has been so modified. This new AD requires an i spection ofthe fuel level contr switch, wiring hamesses, andharness conduit forany vJible damage, wear or chafing, broken or missing Q-rings, orindications ofelectrical arbing; an inspection to determin the part number ofthe wiring harness conduit; and correbtive actions ifnecessary. This
new AD also requires replacing certain sleeving with ne , improved sleeving over the wiring harness ofthe [uellevel control switch. This AD results from adesign review 0 the fueltank systems. We are issuing this AD to preven chafing ofthe fuelleve} contI' switch wiring harness, which could cause arcing and resl:lltin afire in the fueltank.ACTION: Final rule. SUMMARY: The.FAA ~ superseding an existing ~rthiness directive (AD), which applies to all Lockheed Mo~el L-lOll series airplanes.

# itAD currently requires an inspection of the fuel level control switch.•the fuel level lantro} switch wiring harness, and the wiring harness conduit for damage, wear or chafirig, broken or missing O~rings,
or indications ofelectrical arcing. That AD also r~quire! repla~ment of acertain condui inthe fuel level control switch wiring ham~ss, installatiJn of electrical sleeving over t:4e fu~llevel control switch wiring harness. and installation

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## fuel level control switch whichhas been somodified. This new AD requires an ~ction ofthe fuel level contro switch, wiring harnesses, and harness conduit for any vifble damage, wear or chafing, broken or missing O-rings, or indications ofelectrical arcing; an inspection to determine the part number ofthe wiring harness conduit; and correJtive actions ifnecessary. This
new AD also requires replacing certain sleeving with net- improved sleeving over the
. wiring harness ofthe fuel level control switch. This AD results from adesign review of thefuel tank syste~. We are issuing this AD to prevent chafing of the fuel level control ••...•• switch wiring harness, which could,cause arcing and resUlt in afire in the fuel tank. Airworthiness Directives; Lockheed Model L-IOll Series AiIplanes AGENCY: Federal Aviation Administration ~AA), D~partinent ofTranspo~tion (DOT). Amendment 39-**; AD **) RIN 2UO-AA64 [Docket No. FAA-2008-1 I I I I; Directorate Identifier 2008-NM..o78-AD; Federal Aviation Administration 14 CFR Part 39 14910-13-UI DEPARTMENT OF TRANSPORTATION

FAAForm 1350-14.1 (5-89) OFFICIAL FILE COPY