What was found
APU WEAK ON ENG START. ONLY PROVIDED 22 PERCENT MAX MOTORING AFTER 50 SECONDS. TRIED SURGE CONTROL VALVE NO HELP. REPLACED APU.
- Difficulty date
- December 2, 2006
- Submitted
- December 13, 2006
- Operation
- Air carrier
- Aircraft
- N178DN
- Make and model
- Boeing 767332
- Aircraft serial
- 25143
- Aircraft time
- 74,315 hours, 11,417 cycles
- Engine
- Pwa PW4060
- Engine time
- 19,186 hours, 28,802 cycles
- System (JASC)
- 4920 · APU Core Engine
- Part
- Engine
- Part serial
- P1933
- Condition
- Weak
- Location
- Apu
- Part time
- 19,186 hours, 28,802 cycles
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.