# SDR ASAA12511523

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 7, 2012
- Submitted: May 9, 2012
- Operation: Air carrier
- Aircraft: [N588AS](https://openairdocs.org/aircraft/N588AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35685
- Aircraft time: 17,041 hours, 5,406 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Autothrottle Sys
- Condition: Malfunctioned
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA12511523

## Discrepancy

AUTO THROTTLES DISENGAGED ON THE T/O ROLL AND WOULD NOT RE-ENGAGE IN FLIGHT. ACFT GROUNDED. COULD NOT DUPLICATE. A/T FLT REVIEW LOGGED ASM NR 2 FAULT NR 22-31688 AND NO OTHER FAULTS LAST 40 FLT LEGS.  ACCOMPLISHED AUTOTHROTTLE OPS CHECK AND SERVO MOTOR TEST IAW MM 22-31-00, OPS TEST CHECKED NORMAL.  NO HISTORY 30 DAYS.

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