# SDR ASAA11510814

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 18, 2011
- Submitted: December 21, 2011
- Operation: Air carrier
- Aircraft: [N566AS](https://openairdocs.org/aircraft/N566AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35181
- Aircraft time: 18,908 hours, 5,873 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Filter Element
- Part number: 38809381
- Condition: Defective
- Location: Apu
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA11510814

## Discrepancy

WHILE PERFORMING T/C 78349005 FOUND THE OIL FILTER INDICATOR ON LUBE FILTER HOUSING OF THE APU EXTENDED.  REMOVED & REPLACED OIL FILTER ELEMENT REF MM 49 91 12.  LEAK CHECK GOOD.  REMOVED & REPLACED OIL FILTER INDICATOR REF MM 49 91 31.  LEAK CHECK GOOD.

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