# SDR ASAA2020103033459

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 30, 2020
- Submitted: November 3, 2020
- Operation: Air carrier
- Aircraft: [N494AS](https://openairdocs.org/aircraft/N494AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41729
- Aircraft time: 17,659 hours, 5,519 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Filter
- Part number: 38809381
- Condition: Clogged
- Location: Apu Oil System
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020103033459

## Discrepancy

WHILE PERFORMING T/C N8349002 FOUND THE RED BUTTON ON THE APU OIL FILTER INDICATOR POPPED.  GROUNDED-YES.  REMOVED AND REPLACED APU OIL FILTER, REF B737-900 AMM 49-91-13-600-801 APU.  OPERATIONS AND LEAK CHECK OK.

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