Hydraulic leak - can't find the source

Skymaster337B · #1 09-12-23, 07:55 PM

It’s good that you caught that. If the fluid drained out the gear would not unlock. The spring locks the gear up. And only hydraulic pressure will release it.

AV8ing · #2 09-13-23, 04:31 AM

Quote:

Originally Posted by Skymaster337B

It’s good that you caught that. If the fluid drained out the gear would not unlock. The spring locks the gear up. And only hydraulic pressure will release it.

Yikes, that's not a good "fail" mode ....

AV8ing · #3 09-13-23, 04:35 AM

Can't find the break-out for the up-lock actuator in the IPC - says see Fig 46... in Fig 46 .

Need cross ref's for MS28774 teflon packings .

Need alternative PNs for : S1120-363, S1120-181, S1121-389, S1121-207

Thanks!

TomM · #4 09-13-23, 10:54 AM

With the exception of S1121-207, Airpower has all the Cessna parts numbers in stock for $15 or less each. The S1121-207 must be made of Kriptonite, they have it in stock, but it is $129. So other than that part, the pricing seems really reasonable. Many times they list alternate MS or AN part numbers for Cessna numbers, but not for that part........

RandyArizona · #5 09-13-23, 08:54 PM

https://www.airpowerinc.com/s1121-207
$12.39

56 in stock, available to ship now.

RandyArizona · #6 09-13-23, 09:04 PM

https://www.cessnaparts.com/?s=S1121...t_type=product

S1121-389
Standard Packaging of 5 items
Info --
RING, BACK UP TEFLON

In Stock $117.88 $103.73 --
S1121-389 quantity

Yep 5 for $103.73
$21.oo each, give or take...

RandyArizona · #7 09-13-23, 09:06 PM

I use QWANT for searching parts..
For some reason, it is much better and faster, and usually gives me cheaper, uh hem, "less costly" parts...