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Flaps jammed in the up position


unicom

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Hi everyone,

Bad surprise today as the flaps of my 1980 M20J have remained jammed in the up position.  Always good to practice flaps up landing !!!   The event happened in flight. No pop up of the breaker. I reset it a couple of times without success. There is no noise when I manipulate the toggle switch. So I came to the conclusion that there is either:

- a toggle switch issue

- a flap electric motor malfunction

- a wire disconnected somewhere

- a stuck relay

Any other idea what could be the cause of the problem ? how would you address the trouble shooting ?

Thanks for your help.

 

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It was windy so I did a no flap landing today.  90% of my landings are 1/2 flaps.  The flaps only add about 3 knots to the stall speed.   Start with the limit switches int the belly.  Last panel by the flap torque tube.  Try wiggling them and see if they start working.  That usually means limit switch.

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I had a similar issue last week and since it has been discussed here before I knew what it was right away.  We had done a touch and go landing and the flaps would not retract from the fully extended position.  No biggie we were climbing well so we the pattern anyway and I was already in landing configuration. After troubleshooting I made sure the switch was not in the up position so they would not retract at an unexpected time and landed normally.  Of course the flaps retracted normally when I hit the switch after exiting the runway.  Annual coming up next month so that's on the list for things to address.

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