# SDR ASAA2016092918157

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2016
- Submitted: October 3, 2016
- Operation: Air carrier
- Aircraft: [N590AS](https://openairdocs.org/aircraft/N590AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35687
- Aircraft time: 33,401 hours, 10,124 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Autothrottle Sys
- Condition: Malfunctioned
- Stage of operation: CR
- 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/ASAA2016092918157

## Discrepancy

AUTOTHROTTLES DISENGAGED INFLIGHT WOULD RE-ENGAGE.  ACFT GROUNDED. VERIFIED FAULT 22-31687 FOUND IN INFLIGHT FAULTS DURING AUTO THROTTLE FAULT REVIEW.  PERFORMED  FIM 22-32 TASK 819 INITIAL EVALUATION AND FAULT DID NOT RE-OCCUR IN CURRENT STATUS AFTER AUTOTHROTTLE DC1 CIRCUIT BREAKER RESET AND AUTOTHROTTLE SERVO TEST. PERFORMED AUTO THROTTLE OPERATIONAL TEST IAW AMM 22-31-00. NO NEW FAULTS, OPS TESTED GOOD.

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