# SDR ASAA2017080221516

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 2, 2017
- Submitted: August 3, 2017
- Operation: Air carrier
- Aircraft: [N472AS](https://openairdocs.org/aircraft/N472AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 60580
- Aircraft time: 9,172 hours, 3,015 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: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017080221516

## Discrepancy

DURING COCKPIT PRE-FLIGHT INSPECTION,  F/O FOUND THE SPEED TRIM FAIL LIGHT ILLUMINATED ON OVERHEAD PANEL.  ACFT GROUNDED.  RAN DFCS BITE SPEED STAB TRIM GROUP NR 60-32, NO FAULTS, SPEED TRIM FAIL LIGHT OFF AFTER TESTS, DFCS CURRENT STATUS NO FAULTS.

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