What was found
APU WILL NOT START, HANGS AT 18% N1. REPLACED IGNITION UNIT IAW MM-49-41-38, NO HELP. REPLACED FUEL CONTROL UNIT FOR TROUBLESHOOTING IAW MM, NO HELP. REPLACED IGNITER PLUGS & LOWER IGNITION LEAD IAW MMS. OPERATIONS CHECKED GOOD.
- Difficulty date
- October 30, 2013
- Submitted
- November 7, 2013
- Operation
- Air carrier
- Aircraft
- N491UA
- Make and model
- Airbus A320232
- Aircraft serial
- 1741
- Aircraft time
- 37,924 hours, 16,588 cycles
- Engine
- Iae V2527A5
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Ignition Lead
- Condition
- Defective
- Location
- Apu
- Stage of operation
- NR
- 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.