What was found
FOUND APU LUBRICATION FILTER DIFFERENTIAL PRESSURE INDICATOR EXTENDED. ACFT GROUNDED. REPLACED APU OIL FILTER INDICATOR AND OIL FILTER IAW AMM 49-91-13 AND 49-91-12. OPS AND LEAK CHECK GOOD.
- Difficulty date
- August 29, 2014
- Submitted
- September 3, 2014
- Operation
- Air carrier
- Aircraft
- N579AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35187
- Aircraft time
- 28,691 hours, 8,570 cycles
- System (JASC)
- 4990 · APU Oil System
- Part
- Indication Sys
- Condition
- Activated
- Location
- Filter
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.