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During your preflight, please check for cracks around the flange of the muffler as shown in the pictures.
Installing the safety wire on the tuned pipe as shown below, will save your propeller.
If you hear an increased engine noise during your flight, even having the safety wire installed, land as soon as possible!
We do not claim that all muffler flanges mentioned in the JPX Italia letter will crack but some may.
Please check the serial number of your engine and if it matches the one mentioned in the JPX Italia letter, if you live in the USA, contact immediately Alex Varv at 708-341-5900 or send him an e-mail: alexvarv@ameritech.net
If you live in other country, please contact your dealer.
Again, the above problem may occur only on the engines released from February 2005 until April 2005.
All the mufflers manufactured before and after this period are safe.
Again we are apologize for this inconvenience and we will replace all the flanges for these engines at no cost for you.
Final note: JPX Italia-Cors-Air Motors and Aerocorsair USA consider that safety can not be compromised and this is why we decided to go public with this issue and not to keep it away from the public like some of our competitors did it in the past with their engines.
We are convinced that you appreciate our decision to go public with this matter and will continue to enjoy flying our engine.
Upon request from several pilots, we publish additional pictures to make sure this issue is well understood:
The first stage consists of a crack at the base of the flange
Next, a separation of the flange will occur will occur:
Again, the rupture will occur not at the welded area but at the base of the flange:
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