# SDR ASAA2018103126683

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 31, 2018
- Submitted: November 1, 2018
- Operation: Air carrier
- Aircraft: [N491AS](https://openairdocs.org/aircraft/N491AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44109
- Aircraft time: 11,932 hours, 4,023 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil Filter
- Part number: 38809381
- Condition: Clogged
- Location: Apu
- Stage of operation: IN
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018103126683

## Discrepancy

APU LUBE MODULE OIL FILTER DPI POPPED. GROUNDED - YES. REPLACED APU LUBE MODULE OIL FILTER REF AMM 49-91-13. LEAK CHECK GOOD.

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