# SDR ASAA2019121641603

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2019
- Submitted: December 17, 2019
- Operation: Air carrier
- Aircraft: [N585AS](https://openairdocs.org/aircraft/N585AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35683
- Aircraft time: 46,578 hours, 13,956 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Autothrottle Sys
- Condition: Malfunctioned
- Stage of operation: CL
- 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/ASAA2019121641603

## Discrepancy

A/T DISENGAGED ON TAKEOFF. GROUNDED - YES. AUTOTHROTTLE INFLIGHT FAULTS LOGGED ONE RATE MONITOR FAULT (ASM-1) ON LEG 5. PERFORMED A/T SYSTEM OPERATIONAL TEST REF B737-800 AMM 22-31-00 AND A/T SERVO MOTOR TEST REF SAME - OPS NORMAL. NO FAULTS NOTED.

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