# SDR ASAA2014082909009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 29, 2014
- Submitted: September 3, 2014
- Operation: Air carrier
- Aircraft: [N579AS](https://openairdocs.org/aircraft/N579AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35187
- Aircraft time: 28,691 hours, 8,570 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Indication Sys
- Condition: Activated
- Location: Filter
- 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/ASAA2014082909009

## Discrepancy

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.

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