# SDR ASAA0752281

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 2007
- Submitted: November 26, 2007
- Operation: Air carrier
- Aircraft: [N570AS](https://openairdocs.org/aircraft/N570AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35185
- Aircraft time: 2,897 hours, 871 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Filter
- Part number: 38809381
- Condition: Dirty
- Location: Apu
- Stage of operation: IN
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA0752281

## Discrepancy

WHILE PERFORMING "A" CHECK WORKCARD FOUND LUBE FILTER HOUSING DELTA P POPPED.  REPLACED LUBE FILTER ELEMENT.  RAN APU OPS NORMAL, LEAK CHECK GOOD.

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