# SDR ASAA2021082035755

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 2021
- Submitted: August 24, 2021
- Operation: Air carrier
- Aircraft: [N569AS](https://openairdocs.org/aircraft/N569AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35184
- Aircraft time: 52,680 hours, 15,875 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Autothrottle Sys
- Condition: Faulted
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021082035755

## Discrepancy

AUTOTHROTTLE DISSENGAGED ON TAKEOFF, TRIED TO RE-ENGAGE ON CLIMB AND DISENGAGED AGAIN. GROUNDED - YES. ACCOMP A/T SYS- OPO TEST REF MM 22-31-00-710-801. OPS CK GOOD WITH NO FAULTS. FAULT HISTORY SHOWS CHAN A THR HOLD T/O SET LOW, MSG22-31676. ACCOMP B737-800 FIM 22-32 TASK 819. OPS CK GOOD WITH NO FAULTS. ACCOMP A/T SYS- SYS TEST REF MM 22-31-00-710-802. OPS CK GOOD WITH NO FAULTS. GROUND VERIFICATION SUCCESSFUL. SEAMC JARED NOTIFIED.

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