# SDR TSAA0379008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 25, 2003
- Submitted: February 14, 2003
- Operation: Air carrier
- Aircraft: N821AL
- Make and model: Boeing 737230
- Aircraft serial: 23155
- Engine: Pwa JT8D9A
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Part number: JT8D9A
- Condition: Failed
- Location: Nr 1
- Part time: 48,174 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TSAA0379008

## Discrepancy

AT CRUISE ALTITUDE, THE NR 1 ENGINE OIL FILTER BYPASS LIGHT ILLUMINATED AND WOULD NOT GO OUT AT REDUCED THRUST SETTING.  THE CREW SHUTDOWN THE NR 1 ENGINE AND LANDED AT HNL WITH NO FURTHER INCIDENT.  NO EMERGENCY WAS DECLARED.  REMOVED AND REPLACED THE NR 1 ENGINE.  AIRCRAFT RETURNED TO SERVICE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.