# SDR BAQA081531

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 25, 2002
- Submitted: December 30, 2002
- Operation: Air carrier
- Aircraft: [N117NC](https://openairdocs.org/aircraft/N117NC), registered now
- Make and model: Bolkms BK117C1
- Aircraft serial: 7517
- Aircraft time: 1,426 hours
- System (JASC): [2140 · Heating System](https://openairdocs.org/jasc/2140)
- Part: Valve
- Part number: 1177258203
- Part serial: 01810710
- Condition: Interference
- Location: Heater
- Part time: 1,427 hours
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/BAQA081531

## Discrepancy

HEATER MIXIING VALVE HAS INTERMITTENT OPERATION.  REPLACED WITH SERVICEABLE UNIT.

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