• PiperForum.com is a vibrant community of Piper owners and pilots. Our over 1,500+ active members use Piper Forum to 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.

    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.

    Click Here to Become a Subscribing Member and Access PiperForum.com in Full!

Airspeed indicator bounce

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Joined
Feb 7, 2019
Messages
406
Reaction score
74
Some time ago I began to notice the ASI arm vibrating while in flight. It eventually got worse, to the point that the indicating arm was bouncing back & forth ten to twenty mph. The ASI was been sent out to be be overhauled & reinstalled. The report was, that there was a leak, & the calibration was off. Went flying the other day & still had the same issue.
I also had to replace the Pitot blade awhile back when the heating elements went south, with a rebuilt from a shop in Penn. The Pitot blade has been blown out to make sure there was no debris in the chamber & then reinstalled, & leak tested. The hoses seem to be soft & flexible with no apparent drying out due to age.
I don’t recall the time sequence regarding the Pitot blade replacement & when I first noticed the ASI problem. The shop in Penn. has offered to take back the Pitot blade & flow test it, hooked up to an ASI in their shop.
So, that’s where I’m at right now. Any other ideas? Anyone heard of something like this before?
 

Latest posts

Back
Top