SDR 2003UALA00078

Service difficulty report · Wire · Boeing 767322

Difficulty date: January 22, 2003
Submitted: February 19, 2003
Operation: Air carrier
Aircraft: N662UA
Make and model: Boeing 767322
Aircraft serial: 27159
Aircraft time: 42,832 hours, 6,901 cycles
Engine: Pwa PW4060
System (JASC): 2421 · AC Generator-Alternator
Part: Wire
Condition: Shorted
Location: Idg
Stage of operation: CR
How discovered: O
Nature of condition: B
Precautionary procedure: A

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

What was found

SMOKE IN COCKPIT. WHEN SWITCHING OFF UTILITY BUSSES RT GENERATOR TRIPPED. UPON ARRIVAL AT BAQ, REPLACED RT GENERATOR CONTROL UNIT. ALSO FOUND RT ENGINE FIRE DETECTION CIRCUIT BREAKER OPEN ON P11 PANEL, AND HEAT DAMAGED RT ENGINE FIRE DETECT CARD M684. CARD REPLACED, AND CHECKED E AND E BAY FOR POSSIBLE WATER INGRESS. FOUND IDG WIRE W3538-301Y-18 SHORTED TO FIRE LOOP WIRE W3520-505R-16. REPAIRED SHORTED WIRE.