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glipaz
Joined: 11 Jan 2011
Posts: 110
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 Posted: Sat Oct 14, 2017 4:59 pm Post subject: CJ Nose gear won't retract |
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I flew three hops today and on the last one the nose gear would not retract after takeoff. It remained down with a green light. Mains worked fine and showed Red lights for up and locked. Recycled a couple times but it didn't help. After landing, I put the front gear selector valve in Neutral (rear valve has been replaced with a block from M-14P, Inc so it's not a factor) and removed the b-nut past the E Air check valve for the NLG Extend side of the actuator on the back of the firewall and it was not leaking. So the check valve appears ok. Something else is preventing the NLG from coming up.
Any help is appreciated. Going on the jacks next.
Gil
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wlannon(at)shaw.ca
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| Posted: Sun Oct 15, 2017 7:08 pm Post subject: CJ Nose gear won't retract |
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Gil;
Agree, not the usual suspect this time. All I can think of right now :--
1. Failed internal actuator seal, air going to both sides. 2. Similar
internal failure of the diverter valve with same result. 3. Mechanical
failure of the ball-lock assy. in the actuator, preventing it's release.
Unlikely unless very high TSO and/or improper adjustment of drag link
over-centre down-lock.
All just guesswork.
Walt
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