# SDR SDR2004080

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 4, 2004
- Submitted: November 17, 2004
- Operation: Air carrier
- Aircraft: N408AT
- Make and model: Aerosp ATR 72-212
- Registry model: [Aerosp ATR 72-212](https://openairdocs.org/model/aerospatiale-atr-72-212) (OpenAirDocs)
- Aircraft serial: 408
- Engine: Pwa PW127
- System (JASC): [3440 · Independent Position Determining System](https://openairdocs.org/jasc/3440)
- Part: Transceiver
- Part number: 959960714562
- Condition: Erratic
- Location: Avionics Rack
- Part time: 152 hours
- Stage of operation: DE
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SDR2004080

## Discrepancy

DURING DESCENT THE GEAR POSITION INDICATOR LIGHTS, THE CREW ALERTING SYSTEM AND THE GPWS AMBER LIGHT CAME ON AND OFF THREE TIMES.  REPLACED THE RADIO ALTIMETER TRANSCEIVER UNIT.

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