# SDR ASAA2014012012429

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2014
- Submitted: January 22, 2014
- Operation: Air carrier
- Aircraft: [N413AS](https://openairdocs.org/aircraft/N413AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 35205
- Aircraft time: 3,430 hours, 1,078 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Indicator
- Condition: Tripped
- Location: Apu Oil 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/ASAA2014012012429

## Discrepancy

DURING TC 78349013, FOUND APU OIL FILTER DELTA-P INDICATOR EXTENDED.  ACFT GROUNDED. PERFORMED OIL FILTER INDICATOR SERVICING.  MAG PLUG CLEAN, FILTER CLEAN R & R FILTER/ PACKINGS.  OPS LEAK CHECK GOOD REF MM 49-91-13.

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