What was found
EVIDENCE OF OIL SEEP AT APU OIL COOLING LINES AT OIL COOLER BYPASS VALVE ON APU. R&R O-RING FOR OIL COOLER TO OIL COOLER BYPASS VALVE IAW AMM 49-27-10. NO LEAKS NOTED.
- Difficulty date
- September 4, 2018
- Submitted
- September 7, 2018
- Operation
- Air carrier
- Aircraft
- N767MW
- Make and model
- Boeing 767277
- Aircraft serial
- 22694
- Aircraft time
- 54,967 hours, 38,013 cycles
- System (JASC)
- 4990 · APU Oil System
- Part
- O-Ring
- Part number
- M832481115
- Condition
- Damaged
- Location
- Apu
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- K
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.