# SDR ASAA2018080425670

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 4, 2018
- Submitted: August 6, 2018
- Operation: Air carrier
- Aircraft: [N419AS](https://openairdocs.org/aircraft/N419AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41734
- Aircraft time: 21,234 hours, 7,000 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Warning Light
- Condition: False Activation
- Location: Speed Trim
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018080425670

## Discrepancy

AFTER START OF BOTH ENGINES. ON RECALL, SPEED TRIM FAIL LIGHT ILLUMINATED.  OFF ON RESET.  ACFT GROUNDED.  ACCCOMPLISHED DFCS BITE LIBRARY NT 33 & 34,  PSEU SHOWS NO CURRENT FAULTS. RESET THE CIRCUIT BREAKER MACH TRIM AC & DC AT P6-2, FCC DC CB AT P6-2.

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