What was found
APU WILL NOT START. FOUND APU BATT AT 20V AND WOULD NOT START. REPLACED APU BATTERY, NO HELP. REPLACED APU CONTROL UNIT, APU STARTS NORMAL.
- Difficulty date
- August 15, 2009
- Submitted
- August 19, 2009
- Operation
- Air carrier
- Aircraft
- N670UA
- Make and model
- Boeing 767322
- Aircraft serial
- 29240
- Aircraft time
- 35,876 hours, 9,561 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Battery
- Part number
- 18550000
- Part serial
- 2239
- Condition
- Faulty
- Location
- Apu
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.