What was found
WHILE PERFORMING T/C N8349002 FOUND THE RED BUTTON ON THE APU OIL FILTER INDICATOR POPPED. GROUNDED-YES. REMOVED AND REPLACED APU OIL FILTER, REF B737-900 AMM 49-91-13-600-801 APU. OPERATIONS AND LEAK CHECK OK.
- Difficulty date
- October 30, 2020
- Submitted
- November 3, 2020
- Operation
- Air carrier
- Aircraft
- N494AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41729
- Aircraft time
- 17,659 hours, 5,519 cycles
- System (JASC)
- 4990 · APU Oil System
- Part
- Filter
- Part number
- 38809381
- Condition
- Clogged
- Location
- Apu Oil System
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.