SDR FDEA201008313280

Service difficulty report · Ground Wire · Boeing 75723A

Difficulty date: August 31, 2010
Submitted: September 7, 2010
Operation: Air carrier
Aircraft: N922FD
Make and model: Boeing 75723A
Aircraft serial: 24293
Aircraft time: 64,874 hours, 21,257 cycles
System (JASC): 3397 · Light System Wiring
Part: Ground Wire
Condition: Shorted
Location: Emergency Lights
Stage of operation: IN
How discovered: C
Nature of condition: L
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

EMERGENCY LIGHT IN COCKPIT ABOVE OBSERVER SEAT INOP. INSTALLED NEW EMERGENCY POWER SUPPLY, NO HELP, FOUND SHORT TO GROUND WIRE FROM FLIGHT DECK EMERGENCY LIGHT D5264, TO PIN 12 ON POWER SUPPLY CONNECTOR D68. SHORT IS BLOWING FUSE INSIDE POWER SUPPLY. REF WDM 33-51-12. REPLACED POWER SUPPLY IAW MM 33-51-07-2-0. NO HELP.

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