# SDR ASAA2017021719853

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 17, 2017
- Submitted: February 21, 2017
- Operation: Air carrier
- Aircraft: [N403AS](https://openairdocs.org/aircraft/N403AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41730
- Aircraft time: 17,178 hours, 5,599 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Autothrottle Sys
- Condition: Malfunctioned
- Stage of operation: NR
- 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/ASAA2017021719853

## Discrepancy

AUTOTHROTTLE FAILED AND WILL NOT STAY ON.  ACFT GROUNDED. PERFORMED FIM 22-31 TASK 801. CURRENT STATUS TEST PASSES. NO FAULTS. INFLIGHT FAULTS SHOWS FAULTS ON FLT LEG 9 FOR ASM 1 MESSAGE 22-31687. PERFORMED  FIM 22-32 TASK 819. AUTOTHROTTLE SERVO TESTS PASSED MULTIPLE TIMES. RAN ALL INTERACTIVE TESTS PER FIM. NO FAULTS.

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