# SDR ASAA2023062543713

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 25, 2023
- Submitted: June 27, 2023
- Operation: Air carrier
- Aircraft: [N938AK](https://openairdocs.org/aircraft/N938AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43381
- Aircraft time: 3,995 hours, 1,134 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: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023062543713

## Discrepancy

FOUND OIL FILTER INDICATOR ON APU LUB MODULE OUT. GROUNDED - YES. REPLACED FILTER, REF INDICATOR. REF B737-9 AMM 49-91-12 LK CHECK GOOD.

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