# SDR 99ZZZX840

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 24, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N163BK
- Make and model: Bolkms BK117A3
- Aircraft serial: 7063
- System (JASC): [6340 · Rotor Drive Indicating System](https://openairdocs.org/jasc/6340)
- Part: Switch
- Part number: 124110221
- Condition: Inoperative
- Location: M/R Drive
- Part time: 77 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX840

## Discrepancy

THERMO SWITCH UNIT INOPERATIVE.  REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

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