# SDR HEEA0012394

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N129MR](https://openairdocs.org/aircraft/N129MR), registered now
- Make and model: Bell 206L-3
- Registry model: [Bell 206L-3](https://openairdocs.org/model/bell-206l-3) (OpenAirDocs)
- Aircraft serial: 51129
- System (JASC): [3452 · ATC Transponder System](https://openairdocs.org/jasc/3452)
- Part: Transponder
- Part number: 066106200
- Condition: Failed
- Location: Cockpit
- Component: KT76
- 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/HEEA0012394

## Discrepancy

TRANSPONDER INOPERATIVE. PERFORMED PRELIMINARY INSPECTION.  FOUND Q402 LOOSE IN UNIT.  RESOLDERED Q402.  UNIT NOW MAKING NOISE.  TROUBLESHOT; SWAPPED OUT T401.  REPLACED Q415, Q401, Q402, C401, C402, C403, C410, CR401, CR402.  REPAIRED.  UNIT STILL NOT RECEIVING.  FOUND Q422BAD.  REPLACED Q422.  REPAIRED.  ADJUSTED TO SPECS.  BENCH CHECK GOOD.

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