# SDR ASAA12511073

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2012
- Submitted: February 10, 2012
- Operation: Air carrier
- Aircraft: [N558AS](https://openairdocs.org/aircraft/N558AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35177
- Aircraft time: 21,471 hours, 6,358 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil System
- Part number: 38007021
- Part serial: P7229
- Condition: Low
- Location: Apu
- Part time: 11,652 hours, 10,034 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA12511073

## Discrepancy

APU "MAINT" ADVISORY LIGHT ILLUMINATED ON START.  FOUND APU OIL LEVEL LOW SERVICED PER M/M 12 13 31 PERFORMED BITE CK PER 49 60 TASK 801 APU OPS CHECKS GOOD, NO LEAKS NOTED.

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