# SDR ASAA1058247

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 3, 2010
- Submitted: September 8, 2010
- Operation: Air carrier
- Aircraft: [N559AS](https://openairdocs.org/aircraft/N559AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35178
- Aircraft time: 15,041 hours, 4,502 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Unknown
- Condition: Malfunctioned
- Location: Autothrottle Sys
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA1058247

## Discrepancy

AUTO THROTTLES WILL NOT ENGAGE.  IN FLT FAULT REVIEW LOGGED ASM NR 2 FAULTS ON LAST LEG.  ACCOMPLISHED AUTOTHROTTLE ARM PROBLEM FAULT ISOLATION TESTS.  REF M/M TASK 22 32 00 810 810.  PASSES ALL TESTS.  ACCOMPLISHED A/T BITE PROCEDURE TESTS.  REF M/M FIM TASK 22 31 00 810 801.  PASSES ALL TESTS.  LAND VERIFY TESTS PASS.  REF M/M 22 00 01.

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