# SDR ASAA2017020819745

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2017
- Submitted: February 10, 2017
- Operation: Air carrier
- Aircraft: [N534AS](https://openairdocs.org/aircraft/N534AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35202
- Aircraft time: 24,019 hours, 6,983 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Warning Message
- Condition: Illuminated
- Location: Autothrottle
- 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/ASAA2017020819745

## Discrepancy

AUTOTHROTTLE ARM, OFF SWITCH DISENGAGED AUTOTHROTTLE INOPERATIVE, CIRCUIT BREAKER IS IN.  ACFT GROUNDED. AUTOTHROTTLE FLIGHT FAULT REVIEW SHOWS FAULT MESSAGE  22-31543 A/T ENG 28VDC INV, ON FLT LEG 7.  ACCOMPLISHED A/T OPERATIONAL TEST IAW AMM 22-31-00, OPS CHECKED NORMAL.

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