# SDR HEEA0011212

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 7, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N402PH](https://openairdocs.org/aircraft/N402PH), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53159
- System (JASC): [3452 · ATC Transponder System](https://openairdocs.org/jasc/3452)
- Part: Transponder
- Part number: 066106200
- Condition: Inoperative
- Location: Cockpit Atc
- 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/HEEA0011212

## Discrepancy

INOPERATIVE. NO REPLY LIGHT.  FOUND DS5 BULB BAD.  REPLACED DS5 BULB AND ADJUSTED FREQUENCY TO SPECS.  REPAIRED UNIT.  BENCH CHECK GOOD.

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