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Mon, Nov 09, 2009

AD: Boeing

AD NUMBER: 2009-23-04

MANUFACTURER: Boeing Model 767 Airplanes
SUBJECT: Airworthiness Directive 2009-23-04

SUMMARY: This AD requires repetitive replacement of the internal electrical feed-through connectors of the boost pumps of the main fuel tank. This AD results from a report of cracking in the epoxy potting compound on the internal feed-through connector of the fuel boost pump in the area of the soldered wire connector lugs. We are issuing this AD to prevent a hazardous electrical path from the dry side to the wet side of the fuel boost pump through a cracked feed- through connector, or between pins or a pin and the shell on one side of the feed-through connector, which could create an ignition source on the wet side of the fuel boost pump or cause a fire in the fuel pump enclosure and lead to subsequent explosion of the fuel tank.

FMI: http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgAD.nsf/0/E4B9B77BD755321B8625766900550CB8?OpenDocument

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