What was found
DURING APU OIL SERVICE FOUND APU OIL FILTER LEAKING. GROUNDED - YES. REMOVED & REPLACED APU LUBE FILTER HOUSING & ELEMENT LK & OPS GOOD REF B737-900 AMM 49-91-12.
- Difficulty date
- December 30, 2022
- Submitted
- January 3, 2023
- Operation
- Air carrier
- Aircraft
- N428AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36353
- Aircraft time
- 24,886 hours, 7,787 cycles
- System (JASC)
- 4990 · APU Oil System
- Part
- Oil Filter
- Part number
- 7590361101
- Condition
- Leaking
- Location
- Apu
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- K
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.