What was found
APU WOULD NOT START. REPLACED BOTH BATTERIES, CHECKED OKAY.
- Difficulty date
- November 17, 2012
- Submitted
- November 20, 2012
- Operation
- Air carrier
- Aircraft
- N128UA
- Make and model
- Boeing 747422
- Aircraft serial
- 30023
- Aircraft time
- 50,939 hours, 5,968 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2432 · Battery/Charger System
- Part
- Battery
- Part number
- 18550000
- Part serial
- 524
- Condition
- Defective
- Location
- Main
- 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.