# SDR ASAA2014052807970

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 2014
- Submitted: May 30, 2014
- Operation: Air carrier
- Aircraft: [N588AS](https://openairdocs.org/aircraft/N588AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35685
- Aircraft time: 24,950 hours, 7,650 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Filter
- Part number: 89873
- Condition: Contaminated
- Location: Apu Oil Sys
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2014052807970

## Discrepancy

WHILE SERVICING APU, FOUND OIL FLITER INDICATOR DELTA-P INDICATOR TRIPPED.  ACFT GROUNDED.  R & R OIL FILTER, RESET DELTA-P INDICATOR.  INSPECTED MAG DRAIN PLUG, NO CONTAMINATION NOTED.  RAN APU NO LEAKS NOTED.  REF AMM 49-91-81-200-801, AND 49-91-12-400-802.

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