# SDR ASAA2020122433759

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 24, 2020
- Submitted: December 29, 2020
- Operation: Air carrier
- Aircraft: [N519AS](https://openairdocs.org/aircraft/N519AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36482
- Aircraft time: 43,751 hours, 12,914 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil Filter
- Part number: 7590361101
- Condition: Clogged
- Location: Apu
- Stage of operation: IN
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020122433759

## Discrepancy

DURING INSPECTION OF APU FOUND OIL FILTER INDICATOR EXTENDED AND WILL NOT RESET.  GROUNDED-YES.  REMOVED AND INSPECTED BOTH LUBE FILTERS, NO DEBRIS FOUND.  REMOVED AND REPLACED OIL FILTER INDICATOR AND LUBE FILTER ELEMENT, PER B737-800 AMM 49-91-13 AND 49-91-12.  LEAKS CHECKS GOOD AND OPERATIONS TEST GOOD/ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.

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