# SDR 99ZZZX3261

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 12, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N122UX](https://openairdocs.org/aircraft/N122UX), registered now
- Make and model: Beech 1900D
- Registry model: [Beech 1900D](https://openairdocs.org/model/beech-1900d) (OpenAirDocs)
- Aircraft serial: UE122
- System (JASC): [2397 · Communications System Wiring](https://openairdocs.org/jasc/2397)
- Part: Wire
- Condition: Failed
- Location: Nr 2 Comm
- Component: Collins, 6226520008
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX3261

## Discrepancy

NR 2 COMM CONTROL HEAD STARTED SMOKING ON CLIMB-OUT.  REMOVED AND REPLACED NR 2 COMM CONTROL (PN 622-6520-008) AND REPAIRED CHAFED AND BURNED WIRES ON PIN 28 AND PIN 37 OF CONNECTOR J176.  WIRING HAD CHAFED AND SHORTED OUT.  COMM CONTROL CIRCUIT BOARD WAS BURNED.  (X)

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