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Russian TU-154 steering problems


LVSaint
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I don't think this was a case of flying on rudder and elevator only. There are stills of this incident that show deflection of the ailerons quite clearly.

 

My guess would be one of two things.

 

First thoughts were a malfunctioning Yaw Damper or a flight control feedback gyroscope that was misinterpreting input from the control column as effects of the slip stream on the controls.

 

After looking at more stills of this incident, it looks as though the flaps were not moved from their original take-off position, slats were not deployed and at times, other controls being in the wrong configuration, making me think the most likely cause is a failure in the hydraulic system on the aircraft. It had been in storage for ten years though, so anything is a possibility. A lot of systems can't be tested properly until in the air so a ground logic (squat) switch or a myriad of systems that take information from this could be at fault.

 

A great display of airman-ship from the crew.

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Whatever it was I'm glad it never happened to me.

 

We used to fly manual reversion approaches on BAC1-11 and I think several Boeings but it was a long time ago so I can't remember exactly which. Nothing like this though, could fly a pretty reasonable approach (often ILS).

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