SDR CA960624002

Service difficulty report · Wire · Boeing 737275

Difficulty date: June 12, 1996
Submitted: March 26, 2000
Operation: Air carrier
Make and model: Boeing 737275
Engine: Pwa JT8D9A
System (JASC): 2420 · AC Generation System
Part: Wire
Condition: Misinstalled
Location: Ac Gen Sys
Stage of operation: DE
How discovered: O
Nature of condition: H, J, W
Precautionary procedure: K

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

What was found

(CAN) ON GROUND AND BOTH GENERATORS TRIPPED OFF WITH STANDBY POWER AS WELL, THEN ALL RETURNED TO NORMAL. ON TAXI SAME THING HAPPENED. ON DESCENT NEXT FLIGHT SAME, LOSS POWER BETWEEN 500' AND 200' BEFORE ALL POWER RETURNED TO NROMAL. REPLACED GENERATOR POWER CONTROL RELAY. TWO DAYS LATER SAME, VOLTAGE SENSOR CARD REPLACED. ON TAXI IN SHUT DOWN #2 ENGINE, LOST STANDBY POWER. FOUND CONTROL WIRES TO R3 CROSSED. REPAIRED.