What was found
APU WON'T START. REPLACED APU CRANK CONTACT OR RELAY PER MM. APU START NORMAL.
- Difficulty date
- September 20, 2011
- Submitted
- September 22, 2011
- Operation
- Air carrier
- Aircraft
- N551UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25399
- Aircraft time
- 75,522 hours, 21,872 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Relay
- Part number
- A703CD
- Part serial
- 149
- 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.