# SDR ASAA2023010971449

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2023
- Submitted: January 9, 2023
- Operation: Air carrier
- Aircraft: [N462AS](https://openairdocs.org/aircraft/N462AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36362
- Aircraft time: 32,045 hours, 10,147 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Filter
- Part number: 7590361101
- Condition: Clogged
- Location: Apu Oil System
- 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/ASAA2023010971449

## Discrepancy

APU LUBE FILTER DELTA P POPPED OUT. GROUNDED - YES. REMOVED AND REPLACED FILTER REF B737-900 AMM 49-91-12. DELTA P RESET. NO DEBRIS FOUND AT THIS TIME.

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