# SDR 29GA2021072300001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 23, 2021
- Submitted: July 23, 2021
- Operation: Air carrier
- Aircraft: N402SV
- Make and model: Aerosp ATR42-500
- Registry model: [Aerosp ATR42-500](https://openairdocs.org/model/aerospatiale-alenia-atr42-500) (OpenAirDocs)
- Aircraft serial: 1217
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Control Switch
- Part number: 70481
- Part serial: 2010
- Condition: Stuck
- Location: Te Flaps
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/29GA2021072300001

## Discrepancy

FLIGHT: 52 TLH/TPA FLAPS STUCK AT 0 ON FINAL APPROACH ( EMERGENCY DECLARED)   REPLACED FLAP CONTROLSWITCH UNIT OPERATIONAL TEST GOOD.

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