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Supplemental Type Certificates

STC to go to 0-470R from 0-470J
Author Last Post
N180TP Donnas 1955 has R in it no longer owns it but N# haven't changed

On Tuesday, September 22, 2015, hotrod180 (spamcan57@gmail.com) <mailer@mail2.clubexpress.com> wrote:
View/reply online       Reply to forum at stc@skywagons.club       Reply directly to hotrod180 at spamcan57@gmail.com
They went from an A on my 53 model to a K, with a field approval to change the mount legs on the engine (to accommodate the A/J mount) and weld 4-bolt flanges on the dual exhaust system. Apparently the original cowl & airbox worked OK.  FWIW the O-470 A J & K engines are all approved for the (prior to A model) Cessna 180 per the TCDS.
About 10 years ago, a guy I know replaced the J engine in his 55 model with an R. He no longer flies and the airplane (and paperwork) is long gone, but you could get the records CD from the FAA for N9335C and see what (if any) 337's were filed for the work.
 
They went from an A on my 53 model to a K, with a field approval to change the mount legs on the engine (to accommodate the A/J mount) and weld 4-bolt flanges on the dual exhaust system. Apparently the original cowl & airbox worked OK.  FWIW the O-470 A J & K engines are all approved for the (prior to A model) Cessna 180 per the TCDS.
About 10 years ago, a guy I know replaced the J engine in his 55 model with an R. He no longer flies and the airplane (and paperwork) is long gone, but you could get the records CD from the FAA for N9335C and see what (if any) 337's were filed for the work.
 

I’m looking for an STC to change from a J engine to an R that allows used of the J engine mount, the 1955 cowlings, air box, etc.

Brian

 

 

 




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