• Become a Subscribing Member today!

    PiperForum.com is a vibrant community of Piper owners and pilots with over 1,500+ active members.

    Access to PiperForum.com is subscription based. Subscriptions are only $49.99/year or $6.99/month to gain access to this great community and unmatched library of Piper knowledge.

    Why become a Subscribing Member?

    • Swap technical knowledge, plan meetups and sell planes/parts.
    • We host technical knowledge of general aviation topics and specific topics on J3-Cubs, Cherokees, Comanches, Pacers and more.
    • In addition to an instant community of pilots for you, PiperForum.com is a library of technical topics, airplane builds, images, technical manuals, technical documents and more.

    Become a Subscribing Member and access PiperForum.com in full!

    Subscribe Now

Comanche Trunnion Advice

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

patbarry

Twin Comanche owner, IA, Avidyne dealer
Joined
May 4, 2013
Messages
774
Reaction score
300
Location
Sthn California
Piper Comanches have a rare occurrence of cracking trunnions, probably due to casting voids. We used to send them to S and B Industries in Salt Lake City but the partners grew old, and that was the end of S and B.
We persuaded K and K Welding in Wisconsin to get an approved repair procedure for cold welding, an excellent process, but they chose to discontinue doing the trunnion weld repairs. They still do the nose trunnion but have chosen to discontinue the main trunnions.
Does anyone here have knowledge of a weld shop that would like to obtain an FAA approval and do weld repairs of trunnions?
There is a new trunnion for Comanches out of Australia at quite a premium cost. We would like to get the weld repair program back together if anyone can do it.

Pat Barry
 

Latest posts

Back
Top