Does anyone have a copy of this old STC and instructions/drawings. The FAA STC Site does not list it anymore.
Marden Airways, Waterville Me. The first and original 12 conversion for theHave no idea. I am dealing with an atypical poorly worded 337 entry, View attachment 42911
Have no idea. I am dealing with an atypical poorly worded 337 entry, View attachment 42911
Someone simply R&R'd the 0-290 with an O-235. Failed to show a reconfiguration to original in the airframe log nor did they process a 337 for the switch back. Now I have to do the paperwork and I wish to be sure the restoration to stock configuration was complete. To do this I need to see all the conversion drawings and instructions.
Actually there were subtle mods performed on the baffling and oil cooler location among other mods and the very poorly illustrated Piper IPL does not help me confirm she is purely stock. The sure way is to compare the original 290 installation package drawings to what is there now. I have maintained maybe 12 PA-12's over the last 25 years and am by no measure a PA-12 GURU. A classic example at how unreliable the PA-12 IPL is was a situation I encountered last week on a 12. While replacing the left fuel tank I noticed the front spar attach fitting diagonal straps had 6 drilled bolts installed with fiber locking nuts. The IPL shows the single bolt and castle nut, listing their part numbers, only for the single bolt that attaches these diagonal straps to the fuselage.Having the original STC would be nice, but you would be conforming it back to the stock PA-12 data. No real need to have the STC. Not sure what’s available on the -12 as far as drawings and parts catalog, but the original engine installation drawing or parts book would be good enough to conform the installation. Don’t forget to remark the engine gages to match the new engine requirements. That used to be on the old ACA309 forms, but when they went away from using them, it’s all supposed to be marked on the instruments now.
The 337 only offers 5 sentences about what the modifier did. It does not say or indicate that it was the only steps he took or that it was all the steps he took. The next stand-alone sentence is the catch all: "The installation was done IAW STC SA2-159. I have seen few 337 alterations that have included every detail in their brief statement in the remarks block. They invariably refer to the data used for the full story and that is why I am seeking the data used. I do not feel I am stirring up a hornet's nest. I feel I am protecting my customer from any excessive liability down the road and I am protecting my ticket when I sign off the annual certifying the airplane is safe to fly, is airworthy and conforms to it's type certificate.
So, why would you need the drawings and such if I assume it’s already installed?
Whenever the FAA issues a TC or STC they retain all of the drawings and any thing else related to the certificate which has been submitted as well as all of the FAA's correspondence. It is stated on the Certificate which FAA office holds the certificate. Any person can go to his local FAA person and request that the entire package be brought to that FAA office where he can peruse it to his hearts content. If his FAA person is nice he may even let him make copies.Question: If an FAA inspector has questions about an installation what resources are available to answer besides the current owner? Do they have access to STC data owners may not?
Gary
https://www.univair.com/supplemental-type-certificates/Was anyone able to help the OP with the drawings and STC copy? I too am looking for the drawings. I have mailed the STC holder some snail mail but it came back returned as unable to deliver and of course there is no phone number or other means to contact him. If anyone can help me with a copy of the STC and drawings for the McKenzie STC SA4-519 it would be much appreciated.
Zach