- Difficulty date
- March 5, 2018
- Submitted
- March 6, 2018
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 43293
- Aircraft time
- 17,022 hours, 5,645 cycles
- Part
- Filter
- Part number
- 7590361101
- Condition
- Clogged
- Location
- Apu
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND APU OIL FILTER HOUSING INDICATOR RED BUTTON EXTENDED. GROUNDED - YES. REPLACED APU OIL FILTER HOUSING FILTER AND O-RING, REF AMM 49-91-13. OPS CHECKED AND LEAK CHECKED, APU OPS NORMAL, RESET OIL FILTER HOUSING INDICATOR RED BUTTON TO FLUSH, AMM 49-91-13.