# SDR TRBA201207301

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2012
- Submitted: March 13, 2012
- Operation: Air carrier
- Aircraft: [N410AT](https://openairdocs.org/aircraft/N410AT), registered now
- Make and model: Aerosp ATR 72-212
- Registry model: [Aerosp ATR 72-212](https://openairdocs.org/model/aerospatiale-atr-72-212) (OpenAirDocs)
- Aircraft serial: 410
- Aircraft time: 31,127 hours, 34,638 cycles
- System (JASC): [6123 · Propeller Feathering/Reversing](https://openairdocs.org/jasc/6123)
- Part: Autofeather Sys
- Part number: 30048000018
- Part serial: MM1351
- Condition: Inoperative
- Location: Rt Propeller
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TRBA201207301

## Discrepancy

THE CREW REPORTED THAT WHILE TAXING OUT FOR TAKEOFF,  THE NR 2 ENGINE DID AN UN-COMMANDED FEATHERING.  THE ACFT RETURNED TO THE BLOCKS AND WAS REMOVED FROM SERVICE.  R & R THE RT ENGINE AUTOFEATHER UNIT IAW MM 72-01-10.  PERFORMED OPS CHECK IAW JIC 61-22-00 AND FOUND WORKING PROPERLY.  THE ACFT WAS RETURNED TO SERVICE.

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