# SDR 98ZZZM792

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 7, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N838JS](https://openairdocs.org/aircraft/N838JS), registered now
- Make and model: Bag JETSTM3101
- Aircraft serial: 741
- System (JASC): [6140 · Propeller Indication System](https://openairdocs.org/jasc/6140)
- Part: Beta Switch
- Part number: 8659566
- Condition: Failed
- Location: Lt Engine
- Stage of operation: TO
- Nature of condition: J
- Precautionary procedure: C, D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZM792

## Discrepancy

AIRCRAFT ABORTED TAKEOFF DUE TO LEFT BETA LIGHT ILLUMINATED AT 60 PERCENT TORQUE.  THE SYSTEM WAS TROUBLESHOT AND THE BETA SWITCH WAS DETERMINED TO BE AT FAULT.  THE SWITCH WAS REPLACED AND A FUNCTIONAL CHECK OF THE SYSTEM PERFORMED WITH ALL INDICATIONS NORMAL.  (M)

---
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.