# SDR ASAA2013022293983

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 22, 2013
- Submitted: March 5, 2013
- Operation: Air carrier
- Aircraft: [N508AS](https://openairdocs.org/aircraft/N508AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35691
- Aircraft time: 17,573 hours, 5,513 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Servo
- Part number: 305RAA1
- Part serial: AS05554
- Condition: Failed
- Location: Autothrottle
- Part time: 17,600 hours, 5,519 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013022293983

## Discrepancy

A/T WILL NOT ENGAGE.  SWITCH GOES OFF AFTER ABOUT 2 SECONDS.  RED A/T ANNUNCIATOR LIGHT FLASHES.   REPLACED NR 1 AND NR 2 AUTOTHROTTLE SERVO MOTORS AND PERFORMED GOOD INSTALLATION TEST REF 22-31-92.

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