# SDR ASAA2023082244720

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 22, 2023
- Submitted: August 23, 2023
- Operation: Air carrier
- Aircraft: [N433AS](https://openairdocs.org/aircraft/N433AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41704
- Aircraft time: 36,442 hours, 11,520 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023082244720

## Discrepancy

DURING AFTER START CHECKLIST ON # APR RECALL BOTH SPEED TRIM FAIL AND MACH TRIM FAIL LIGHTS ILLUMINATED. GROUNDED - YES. PERFORMED B737-900 FIM 22-11 TASK 849 FOUND FCC A INOP , RESET BOTH FCC'S PERFORMED BITE TEST 60.32 AND REPAIR VERIFICATION, ALL FAULTS CLEARED TEST RESET.

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