# SDR HNAA2009072900230

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 29, 2009
- Submitted: July 29, 2009
- Operation: Air carrier
- Aircraft: N931HA
- Make and model: Dhav DHC8102
- Aircraft serial: 132
- Aircraft time: 53,098 hours, 58,719 cycles
- System (JASC): [6123 · Propeller Feathering/Reversing](https://openairdocs.org/jasc/6123)
- Part: Relay
- Condition: Failed
- Location: Autofeather Sys
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2009072900230

## Discrepancy

AUTOFEATHER DID NOT ARM DURING TAKEOFF ROLL.  ABORTED TAKEOFF.  C/W AUTOFEATHER TEST, SYSTEM OPS NORMALLY.  DNAA INFO PER MP&P LOGIC DIAGRAM STEP 1.  INSPECTED P/L MICROSWITCHES FOR CORRECT OPERATION.  NO DEFECTS NOTED.  CLEANED C/P'S AT TSCU.  REMOVED AND REPLACED RELAY 6121-K5.  GROUND RAN A/C, OPS CHECK GOOD.

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