# SDR 2013FA0000380

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2013
- Submitted: July 1, 2013
- Operation: General aviation
- Aircraft: [N965AS](https://openairdocs.org/aircraft/N965AS), registered now
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53079
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Autothrottle Sys
- Part number: 7892591011010
- Part serial: 0100406
- Condition: Disengaged
- Location: E & E Bay
- Stage of operation: CR
- How discovered: O
- Nature of condition: E, J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2013FA0000380

## Discrepancy

MACH TRIM INOPERATIVE LIGHT CAME ON AT ALTITUDE, AUTO THROTTLE AND AUTO PILOT BOTH DISENGAGED, AIR SPEED INDICATORS LEFT .78M RT .71M. ACFT SHUTTERED AND HAD VIBRATION. ALL INDICATIONS RETURNED TO NORMAL AFTER DESCENDING BELOW 28000 FT.  PERFORMED NORMAL LANDING.

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