# SDR ASAA2013061595121

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 15, 2013
- Submitted: June 18, 2013
- Operation: Air carrier
- Aircraft: [N536AS](https://openairdocs.org/aircraft/N536AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35203
- Aircraft time: 5,694 hours, 1,640 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Autothrottle Sys
- Condition: Inoperative
- 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/ASAA2013061595121

## Discrepancy

AUTOTHROTTLES WILL NOT STAY ENGAGED.  ACFT GROUNDED.  COULD NOT DUPLICATE, GROUND FUNCTIONAL TEST OK.  A/T FAULT REVIEW  LOGGED NR 1 ASM FAULT NR 22-31687 ON ONLY 1 FLT LEG OUT OF 40.  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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