What was found
APU MAINTENANCE LIGHT ILLUMINATED. MAINTENANCE MESSAGE- 49-91227 LOW OIL QUANTITY. SERVICED APU OIL TO FULL IAW AMM TASK 12-13-31. BITE CHECK IAW 49-60 TASK 801 SHOWS NO MESSAGES.
- Difficulty date
- December 9, 2012
- Submitted
- December 11, 2012
- Operation
- Air carrier
- Aircraft
- N403AS
- Make and model
- Boeing 737990
- Aircraft serial
- 41730
- Aircraft time
- 239 hours, 97 cycles
- System (JASC)
- 4990 · APU Oil System
- Part
- Oil System
- Condition
- Low
- Location
- Apu
- Component
- Apu
- Component part number
- 38007021
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- W, J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.