Service difficulty report · Charger · Boeing 747422

Difficulty date
October 28, 2009
Submitted
October 28, 2009
Operation
Air carrier
Aircraft
N180UA
Make and model
Boeing 747422
Aircraft serial
25224
Aircraft time
78,639 hours, 9,487 cycles
Engine
Pwa PW4056
Part
Charger
Part number
425402
Part serial
427
Condition
Faulty
Location
Apu
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

REPLACE APU BATTERY FOR TROUBLESHOOTING. REPLACED APU BATTERY, NO HELP. SUSPECT APU BATTERY CHARGER. REPLACED APU BATTERY CHARGER PRECAUTIONARY. BOTH APU BATTERY AND CHARGER CHECK GOOD.