Don’t you just love intermittent problems?! This one has been just that… intermittent. In the 2005 Cirrus SR22, the flaps have 3 positions: up, 50%, and 100%. Our intermittent problem has been that occasionally, when selecting 50% or 100%, the flaps will begin to move down, but the “up” light will stay on. The flaps always stop at the selected position of 50% or 100%, but then when trying to retract the flaps (with the “up” light still on,) they don’t move. After a short time (seconds) the “up” light then extinguishes and the flaps travel up normally. Listen to today’s episode to hear some thoughts about this issue and what we might do to fix it. Months ago, I dug into the issue trying to see if there was something I could do to fix the problem. I removed the rear seat and accessed the openings to the flap drive and the flap circuit board assembly. Here’s the flap drive with the 3 black proximity switches, presumably one for “up,” one for “50%,” and one for “100%” : These switches are magnetically operated. The following photo shows the circuit board for the flaps: I removed the plug on the left and the relays to the right and applied corrosion-X to the connections to ensure positive electrical contact. After putting everything back together, I was hoping I had fixed the issue. Nope… the issue was intermittently still there. After all this my primary thought has been that the “up” proximity switch might be sticking in the closed position when extending the flaps. Then, when selecting up, the flaps don’t move because the system things they are already up, and there’s no need to move. Let me know if you have any other thoughts about this. You can email me at dean{at}airplaneownermaintenance{dot}com or leave a voice message at the side of the page. Thanks! The post “255 – Cirrus SR22 Flaps Sometimes Won’t Retract” appeared first at AirplaneOwnerMaintenance.com