# SDR CA151223008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 22, 2015
- Submitted: April 22, 2016
- Operation: General aviation
- Make and model: Bombdr DHC8400
- Aircraft time: 15,658 hours
- Engine: Pwc PW150A
- System (JASC): [3414 · Airspeed/Mach Indicator](https://openairdocs.org/jasc/3414)
- Part: Module
- Part number: C12431AB
- Condition: Faulty
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA151223008

## Discrepancy

(CAN) CREW CONDUCTED AN AIR TURN BACK DUE TO CONTINUOUS OVERSPEED WARNING.  REPLACEMENT OF THE IOM (INPUT OUTPUT MODULE) CORRECTED THE PROBLEM.

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