# SDR GM0408

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2004
- Submitted: April 30, 2004
- Operation: Air carrier
- Aircraft: N5117
- Make and model: Cessna 650
- Registry model: [Cessna 650](https://openairdocs.org/model/cessna-650) (OpenAirDocs)
- Aircraft serial: 6507064
- Engine: Garrtt TFE731*
- System (JASC): [3411 · Pitot/Static System](https://openairdocs.org/jasc/3411)
- Part: Pitot Tube
- Condition: Obstructed
- Location: Pitot/Static Sys
- Stage of operation: CL
- How discovered: 9
- Nature of condition: P
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GM0408

## Discrepancy

AFTER ROTATION, CREW NOTICED A LOSS OF AIRSPEED INDICATION ON THE PILOT`S INDICATOR ONLY.  FLAP OVERSPEED LIGHT ILLUMINATED.  ALSO THE AUTOPILOT AND YAW DAMPENER WOULD NOT ENGAGE.  TROUBLESHOOTING POINTED TO A LACK OF AIRSPEED INDICATION FROM THE LT SIDE AIR DATA COMPUTER.  THE PITOT TUBE AND ASSOCIATED TUBING WERE CLEARED OF DEBRIS.  A PITOT/STATIC CHECK WAS PERFORMED WITH NO ABNORMALITIES NOTED.  OPERATION OF ALL ASSOCIATED SYSTEMS WERE NORMAL.  AC WAS RELEASED FOR FLIGHT.

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