# SDR ASAA2023021841983

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 18, 2023
- Submitted: February 20, 2023
- Operation: Air carrier
- Aircraft: [N514AS](https://openairdocs.org/aircraft/N514AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35193
- Aircraft time: 51,614 hours, 15,196 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023021841983

## Discrepancy

SPEED TRIM FAIL LIGHT ILLUMINATED ON RECALL. RESETS ON MASTER CAUTION PUSH TO RESET. GROUNDED - YES. CREW REPORTED TEST FLIGHT PROBABLE CAUSE OF SPEED TRIM LIGHT DUE TO MANUAL REVERSION PORTION OF FLIGHT. ACCOMPLISHED B737-800 FIM 22-11 TASK 849. MULTIPLE COLUMN OVERRIDE AND PWR CONT UNIT FAULTS ON 1 AND 2 DFCS FAULT HISTORY. BITE TEST OF DFCS 1 AND 2 OPS NORMAL REF FIM 22-11 TASK 801. LIBRARY TEST 60.32 PASS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.