Yes, that was considered.

Reasons not to do that were that I would have to replace that line eventually with a "proper" one, and the JetEast guys just don't make lines, so they wouldn't do that kind of work.


I wasn't aware JIC and AN are compatible, good to know.

In any case, getting the proper AN fittings was trivial to do, could have ordered them from various sources. I considered doing that, and buying tools, just in case the line Textron sent me was wrong or broken. It turned out to be correct, thankfully.

Another option considered at the time was simply capping the line at both ends. It is a high pressure line that runs from the combined output of both engine pumps to the reservoir. At the time, I didn't understand why the reservoir would need a high pressure line.

I've only recently come to learn that the reservoir in my plane is of the "bootstrap" kind where the high pressure line drives a small piston in the reservoir to push on the larger diaphragm.

The purpose of this is to provide enough inlet pressure on the pumps so they don't cavitate. This is about 60 PSI. Without that line supply pressure, the reservoir would only give about 4 PSI inlet pressure to the pumps. Would sealing off that line have worked? Probably, but that's getting way too tricky.

In any case, all the various ways to fix the airplane still required clean up of the leaked fluid which was the nastiest part. Once that was done, putting in the proper line wasn't the hard part.

Amusingly, when I ordered the new proper line, 6517136-72, they had only one in stock. I just checked right now and they say they have exactly one in stock now, too. So they must make it on demand and keep one in inventory.

Mike C.

I had to educate my mechanic on that. Even though he had heavy machinery experience, he was not familiar with JIC or the fact that it was compatible with AN. Makes temporary repairs very easy.

+1 for Parker stores. The one in Asheville made all the hydraulic flex hoses for my plane. Teflon SS Overbraid made up while I waited.

Mike C
Here are the pictures use it for hydraulic & top off brake reservoir works great . When you order it he will ask what fittings you want in it.

I wish I knew about that mine is a $1000 metal clone

So it is basically a garden sprayer with a filter, gauge, valve, and hose.

Okay, guess that works. Since the entire thing gets pressurized, you can't also use it to catch the overflow drain, will need another container for that. A nicer setup would be a container that isn't pressurized, had a manual pump, and the overflow could end up back in the container directly.

It would be a lot less messy if the valve was at the end of the hose. That way, very little fluid is left to drain the hose.

Polypropylene is compatible with Skydrol, so that will define what containers will work, and this one appears to be polypropylene.

Skydrol compatibility chart:

https://www.silmid.com/Documents/Skydro ... bility.pdf

Mike C.