# SDR ASAA2015122014359

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 20, 2015
- Submitted: December 22, 2015
- Operation: Air carrier
- Aircraft: [N487AS](https://openairdocs.org/aircraft/N487AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44108
- Aircraft time: 508 hours, 157 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Filter
- Part number: 41F9003
- Condition: Bypassing
- Location: Nr 2 Engine Oil
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015122014359

## Discrepancy

NR 2 ENGINE OIL FILTER BYPASS INDICATION DURING TAXI OUT.  ACFT GROUNDED. R & R SCAVENGE OIL FILTER ELEMENT IAW AMM 79-21-06.  NO FOREIGN MATTER WITNESSED IN REMOVED FILTER.  LEAK CHECK GOOD, REF AMM 71-00-00-700-801-F00.

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