What was found
MAINTENANCE LIGHT ILLUMINATED FOR THE APU SYSTEM. ACFT GROUNDED. ACCOMPLISHED AN APU BITE TEST IAW FIM 49-60 TASK 801, NO CURRENT FAULTS. CHECKED OIL QUANTITY FOUND LOW. SERVICED THE APU OIL IAW AMM 12-13-11.
- Difficulty date
- January 26, 2018
- Submitted
- January 29, 2018
- Operation
- Air carrier
- Aircraft
- N408AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41732
- Aircraft time
- 20,578 hours, 6,719 cycles
- System (JASC)
- 4990 · APU Oil System
- Part
- Oil System
- Condition
- Low
- Location
- Apu
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.