# SDR ASAA2013100396098

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 3, 2013
- Submitted: October 8, 2013
- Operation: Air carrier
- Aircraft: [N519AS](https://openairdocs.org/aircraft/N519AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36482
- Aircraft time: 18,056 hours, 5,373 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Autothrottle Sys
- Condition: Malfunctioned
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013100396098

## Discrepancy

INFLIGHT,  AUTO-THROTTLES FAIL LIGHT ILLUMINATED AND AUTO THROTTLES DISENGAGED.  WOULD ENGAGE FOR A FEW SECONDS THEN DISENGAGE.  ACFT GROUNDED.  COULD NOT DUPLICATE. A/T FAULT, REVIEW  LOGGED NR 1 ASM FAULT NR 22-31687 ON FLT 14, 4 TIMES ONLY.  ACCOMP FIM 22-32/819, A/T CURRENT STATUS CK & TORQUE CK NORMAL.  ALSO, ACCOMP SEVERAL TIMES SERVO MOTOR TEST REF MM22-31-00 STEP I, TEST NORMAL.  NO HISTORY 30 DAYS.

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