# SDR ASAA2022090539824

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 5, 2022
- Submitted: September 7, 2022
- Operation: Air carrier
- Aircraft: [N538AS](https://openairdocs.org/aircraft/N538AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 41188
- Aircraft time: 37,273 hours, 10,864 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Filter Element
- Part number: 7590361101
- 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/ASAA2022090539824

## Discrepancy

APU OIL FILTER DPI EXTENDED. GROUNDED - YES. REMOVED AND REPLACED APU LUBE FILTER ELEMENT PER B737-800 AMM 49-91-12.

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