# SDR C2XA01IA040

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2001
- Submitted: February 9, 2001
- Operation: Air carrier
- Aircraft: N14834
- Make and model: Aerosp ATR 42-320
- Registry model: [Aerosp ATR 42-320](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-320) (OpenAirDocs)
- Aircraft serial: 193
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Relay
- Part number: SM100D7
- Condition: Inoperative
- Location: Cockpit
- Stage of operation: TX
- How discovered: O
- Nature of condition: J, B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/C2XA01IA040

## Discrepancy

IAH - FLIGHT 2990, THE CREW REPORTED A SMOKE DETECTION WARNING DURING TAXI.  THE AIRCRAFT RETURNED TO THE GATE WITHOUT INCIDENT WHERE MAINTENANCE PLACED THE NUMBER ONE PACK ON MEL 21-50-01 CONTROL NUMBER 004868, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.  THE AIRCRAFT RETURNED TO IAH ON FLIGHT 3556 ON 01/23/01 WHERE MAINTENANCE REMOVED AND REPLACED THE AVIONICS VENT FAN RELAY, REMOVE MEL 21-50-01 CONTROL NR 004868, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.

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