# SDR SIMA200929906

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 25, 2009
- Submitted: October 26, 2009
- Operation: Air carrier
- Aircraft: [N712AE](https://openairdocs.org/aircraft/N712AE), registered now
- Make and model: Emb EMB-135LR
- Registry model: [EMB EMB-135LR](https://openairdocs.org/model/embraer-emb-135lr) (OpenAirDocs)
- Aircraft serial: 145247
- Aircraft time: 21,838 hours, 19,255 cycles
- System (JASC): [2751 · Trailing Flap Position Indicating System](https://openairdocs.org/jasc/2751)
- Part: Velocity Sensor
- Part number: 3633501003
- Part serial: 802
- Condition: Defective
- Location: Te Flap
- Part time: 15,362 hours, 13,893 cycles
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA200929906

## Discrepancy

ON FLIGHT 4472 DURING THE DESCENT THE CREW REPORTED A FLAP FAILURE MESSAGE ON EICAS.  THE CREW DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT.  THE AIRCRAFT WAS REMOVED FROM SERVICE.  TROUBLESHOT SYSTEM IAW FIM 27-51-00-810-816-A AND FOUND THE LEFT VELOCITY SENSOR TO BE BAD.  REMOVED AND REPLACED THE LEFT VELOCITY SENSOR.  OPERATIONAL CHECK WAS GOOD.  THE AIRCRAFT WAS RETURNED TO SERVICE.

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