SDR CALA2013082990831

Service difficulty report · Charger · Boeing 757222

Difficulty date: June 15, 2013
Submitted: August 30, 2013
Operation: Air carrier
Aircraft: N575UA
Make and model: Boeing 757222
Aircraft serial: 26689
Aircraft time: 66,712 hours, 24,645 cycles
Engine: Pwa PW2037
System (JASC): 2432 · Battery/Charger System
Part: Charger
Condition: Faulty
Location: Apu
Stage of operation: IN
How discovered: O
Nature of condition: O
Precautionary procedure: K

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

What was found

AUXILIARY POWER UNIT WILL NOT START. PLACARDED AUXILIARY POWER UNIT INOPERATIVE IAW MEL. AUXILIARY POWER UNIT HAS FUEL NO IGNITION. REPLACED BATTERY, VOLTAGE WAS AT 5V & CHARGER NOT CHARGING BATTERY VERY HOT. REPLACED BOTH BATTERY & CHARGER AUXILIARY POWER UNIT HAD NORMAL STARTS & RAN WITH ELECTRIC & PNEUMATIC LOAD FOR 2 HOURS AT GATE.