What was found
DURING APU HEALTH CHECK, APU AUTOSHUTDOWN, ECU SHOWS HIGH OIL TEMP. REMOVED AND REPLACED OIL COOLER BYPASS VALVE IAW AMM 49-27-10 LEAK AND OPS CHECK OK.
- Difficulty date
- May 7, 2024
- Submitted
- May 14, 2024
- Operation
- Air carrier
- Aircraft
- N399CM
- Make and model
- Boeing 767323
- Aircraft serial
- 25451
- Aircraft time
- 111,684 hours, 19,286 cycles
- System (JASC)
- 4920 · APU Core Engine
- Part
- Bypass Valve
- Part number
- 1589352
- Part serial
- 195893
- Condition
- Failed
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.