What was found
FOUND APU LUBE OIL FILTER HOUSING (RED) BUTTON INDICATOR EXTENDED. GROUNDED - YES. REMOVED AND REPLACED APU LUBE FILTER ELEMENT IAW AMM 49-91-12. OPS CK AND LEAK CK GOOD. NO DEFECTS NOTED.
- Difficulty date
- December 17, 2016
- Submitted
- December 19, 2016
- Operation
- Air carrier
- Aircraft
- N428AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36353
- Aircraft time
- 3,181 hours, 1,038 cycles
- System (JASC)
- 4990 · APU Oil System
- Part
- Filter Element
- Part number
- 38809381
- 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.