# SDR ASAA2013120696648

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2013
- Submitted: December 9, 2013
- Operation: Air carrier
- Aircraft: [N596AS](https://openairdocs.org/aircraft/N596AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35688
- Aircraft time: 21,384 hours, 6,666 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Servo
- Part number: 305RAA1
- Part serial: AS05989
- Condition: Failed
- Location: Autothrottle
- Part time: 13,587 hours, 4,582 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013120696648

## Discrepancy

AUTOTHROTTLES WILL NOT STAY ENGAGED.  DISENGAGED DURING CLIMB AND CRUISE.  ACFT GROUNDED.  REPLACED NR 1 AUTOTHROTTLE SERVO MOTOR, OPS NORMAL IAW MM 22-31-91-400-801.

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