# SDR CA141210007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2014
- Submitted: March 12, 2015
- Operation: General aviation
- Make and model: Cessna 208B
- Registry model: [Cessna 208B](https://openairdocs.org/model/cessna-208b) (OpenAirDocs)
- Aircraft time: 2,488 hours
- Engine: Pwa PT6A42
- System (JASC): [2731 · Elevator Tab Control System](https://openairdocs.org/jasc/2731)
- Part: Elevator System
- Condition: Binding
- Stage of operation: CL
- How discovered: O
- Nature of condition: F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA141210007

## Discrepancy

(CAN)   DURING A TRAINING FLIGHT, ON A RECOVERY FROM A SIMULATED FORCED APPROACH ELEVATOR TRIM BECAME JAMMED IN THE FULL NOSE UP POSITION. ATTEMPTS WERE MADE TO TRIM THE AIRCRAFT MANUALLY & ELECTRICALLY BUT TRIM WHEEL WAS JAMMED SOLID.  SIGNIFICANT PRESSURE ON THE YOKE WAS REQUIRED TO KEEP THE AIRPLANE LEVEL.  CREW DECLARED AN EMERGENCY & RETURNED TO THE AIRPORT AFTER SELECTING DIFFERENT FLAP SETTINGS (AT ALTITUDE) TO SEE HOW THE AIRCRAFT WOULD RESPOND.  ON DOWNWIND THE TRIM WAS THEN ABLE TO MOVE AGAIN & THE AIRCRAFT LANDED WITHOUT INCIDENT.  MAINTENANCE IS PENDING.  GOING THROUGH THE TRIM SYSTEM TO FIND THE PROBLEM.

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