# SDR DXTA2026072708982

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2026
- Submitted: July 27, 2026
- Operation: Air carrier
- Aircraft: [N907QS](https://openairdocs.org/aircraft/N907QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0321
- Aircraft time: 4,345 hours, 2,899 cycles
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Pitch Control
- Condition: Faulted
- Location: Zone 300
- Stage of operation: CL
- How discovered: O
- Nature of condition: G, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026072708982

## Discrepancy

ON ROTATION & CLIMB OUT, PRIMARY PITCH TRIM FAILED. SWITCHED TO SECONDARY WHICH ALSO FAILED. RAN QRH.  TECHS REVIEWED TEAM 680'S ARES ANALYSIS, WHICH DETERMINED THE PRI STAB TRIM FAIL EVENT WAS LIKELY CAUSED BY SIMULTANEOUS PITCH TRIM INPUTS FROM BOTH PILOT & COPILOT, RESUITING IN AUTOPILOT CONTROL UNIT ENTERING AN INVALID STATE. IAW TEAM 680'S RECOMMENDATION, TECHS RESET THE ACU WITH ACFT POWER ON & PERFORMED A FULL-TRAVEL OPS CHK OF PITCH TRIM SYS. PRIMARY & SECONDARY PITCH TRIM SYS OPS NORMAL THROUGHOUT FULL RANGE OF TRAVEL WITH NO FAULTS OR ABNORMAL INDICATIONS NOTED. NO TRIM FAIL CAS MESSAGES REOCCURRED DURING OPS TESTING. ALL WORK PERFORMED IAW AMM 27-00-00 FLT CONTROL TROUBLESHOOTING & WDM 27-40-01-02.

---
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.