# SDR ASAA2023090144925

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 1, 2023
- Submitted: September 5, 2023
- Operation: Air carrier
- Aircraft: [N435AS](https://openairdocs.org/aircraft/N435AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 43292
- Aircraft time: 36,811 hours, 11,584 cycles
- System (JASC): [2200 · Auto Flight System](https://openairdocs.org/jasc/2200)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023090144925

## Discrepancy

AT LEVEL OFF AT FL 350 AUTOTHROTTLES DISENGAGED AND WOULD NOT RE-ENGAGE. GROUNDED - YES. PULLED A/T C/B & RESET. ACCOMPLISHED A/T BITE REF FIM 22-31 TASK 801. NO CURRENT FAULTS. PREVIOUS LEG 01 SHOWED MSG 22-31543 @ 04:23Z ALT. 1112 FT (A/T ENG 28VDC INV. FCC-A). NO HISTORY FOR PAST 90 DAYS. PERFORMED A/T THROTTLE TESTS. PASSED. OK FOR SERVICE.

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