# SDR ASAA2015012310403

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2015
- Submitted: January 26, 2015
- Operation: Air carrier
- Aircraft: [N538AS](https://openairdocs.org/aircraft/N538AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 41188
- Aircraft time: 10,527 hours, 3,154 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Transmitter
- Part number: QA07656ISS1
- Condition: Failed
- Location: Nr 1 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/ASAA2015012310403

## Discrepancy

LEFT ENGINE OIL FILTER BYPASS LIGHT ILLUMINATED AFTER LANDING.  ACFT GROUNDED. INSPECTED AND REPLACED SCAVENGE OIL FILTER ASSY IAW AMM 79-21-04.  NO CLOGGING FOUND ON SCAVENGE OIL FILTER.  REPLACED SCAVENGE OIL FILTER CLOGGING TRANSMITTER IAW AMM 79-21-07.  PERFORMED IDLE LEAK CK ON NR 1 ENG, TWICE IAW AMM 71-00-00, LEAK CK GOOD.  NO BYPASS LIGHT ILLUMINATED, OIL FILTER.

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