# SDR TSAA04790620

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 22, 2004
- Submitted: August 24, 2004
- Operation: Air carrier
- Aircraft: [N827AL](https://openairdocs.org/aircraft/N827AL), registered now
- Make and model: Boeing 737209
- Aircraft serial: 23913
- Aircraft time: 33,585 hours, 57,562 cycles
- Engine: Pwa JT8D9A
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Bypass Switch
- Part number: 69726881
- Part serial: 22020
- Condition: Failed
- Location: Nr 1 Engine
- Part time: 3,698 hours, 8,382 cycles
- Stage of operation: DE
- How discovered: C
- Nature of condition: J
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TSAA04790620

## Discrepancy

NON-ETOPS FLIGHT 67, OGG-HNL: NR 1 ENGINE OIL FILTER BYPASS LIGHT ILLUMINATED. SHUT-DOWN NR 1 ENGINE IAW QRH.   REPLACED NR 1 ENGINE OIL FILTER BYPASS SWITCH IAW AMM 79-35-11. OPS/LEAK CHECK OK, AIRCRAFT RETURNED TO SERVICE.

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