That airplane rarely seen a hangar. It flew about 700 hours/year, five days a week in scheduled service. Under certain winter conditions, it would get a hangar on one end of the route on a day-by-day basis. On the other end it never seen a hangar. On one end, I would get a Tanis plugged in all of the time below about 40F degrees. On the other end, only below 10F.

Unfortunately, someone totaled it last year. The company that I flew/trained for sold it about 15 years ago..
viewtopic.php?f=41&t=181771&hilit=n4661n

We had 13-404's, two 402B's, two 402C's and one 421C for piston Twin Cessna's, and another 30ish turbine aircraft. We had a great maintenance department that knew the airplanes well and took care of them. Some may have been ugly, but I was never concerned about the mechanical shape...

http://www.kathrynsreport.com/2021/05/f ... 4661n.html

Had over 17k hours on her when they ran it outta gas.. hate to see that happen to any airplane and/or pilot(s). At least they survived.

We had 13-404's, two 402B's, two 402C's and one 421C for piston Twin Cessna's, and another 30ish turbine aircraft. We had a great maintenance department that knew the airplanes well and took care of them. Some may have been ugly, but I was never concerned about the mechanical shape...



What and where was the outfit that you worked for located, Jason?

It was Superior Aviation headquared in Iron Mountain, MI but we had airplanes all across the country. Starting in 2003 or so, most of the piston Twin Cessna's were sold off, keeping only the 441, 208's and the Metro's. Eventually, that operation was sold off to Martinaire in Addison.

Cool. My mechanic worked for an outfit in Vegas (Air Nevada), around the same time frame where they were flying/maintaining 402’s, 421’s, etc..

I’m very fortunate to have him around to keep me in the air.

So I have a question, On our C425 I picked it up from MX approximately 4 weeks ago (phase 2 and 100hr ). First takeoff Hydraulic Press light stayed on after retracting the gear. Per the checklist airspeed below 130kts and cycle the gear ,gear came up and light out as normal. Over the course of the last 3 weeks I’ve done 18 to/ldg out of those 5 times the light stayed on again. So off to Maintenance it went and of course they are not able to duplicate after swinging the gear at least 20 times. I’m wondering if it doesn’t have something to do with the engine driven pumps as that is the only difference I can think of why it happens to me on take off vs the plane swinging the gear on jack stands. Anyone have any thoughts or seen it before? I’m going up to take one of their mechanics for a test flight to see if it happens again. Thank you

The most recent TCF magazine that showed up in my mailbox this week has an article about the twin Cessna hydraulic landing gear. They're specifically talking about 421s, 414s, and 404s, so I'm not sure how the 425 differs.

In any case, the hydraulic pressure light staying on or cycling is mentioned as a common problem. First, he says if this happens to pull the breaker (until needed for landing!) to avoid overheating the fluid and melting the sight tube. Then he says the issue is usually misadjustment of the uplock micro switches or gear doors that are too tight. Maybe on jacks the geometry is different enough that you don't have your issue.

Thanks I will look for the article.

Which magazine? I’m not seeing it. Thanks

The Twin Cessna Flyer, June 2024; Vol 37 Issue 06.
Cover has a 310 on it, with the feature article "Raised on Twin Cessnas".
Article is on Page 24, "Hydraulic Landing Gear".

Call Tony saxton at TAS in Ohio he knows these planes.

Thanks everyone. Everything has been adjusted and tightened. Thoughts now that it might be a sticky loading valve , not letting the pressure go low enough to shutoff pressure light.

Update we replaced the loading valve and it worked as advertised on the test flight. Landed and completed the logbook entries. Departed for home base and it worked flawlessly. Big shoutout to Mike Pegram and the entire crew at Eagle aviation in KCAE. They worked hard and figured out the problem. Yuengling also had some input and S and S aviation at Cherokee county in Georgia.