Marc Zeitlin has just posted a long history of Emag/Pmag
experiences. The following is the "bottom line".
Recommendations:
My recommendations, based on my opinions and my examination of MANY Emagair unit disassemblies are these:
1) If you are flying with a version 113 or 114 product from Emagair,
ground your plane immediately and remove the units. Do NOT fly with them, or with the "fix" described in the SB. It will work for a
while, but for how long?
2) If you have a unit that you have purchased but haven't used yet, return it for a refund - do NOT put it on your aircraft and fly it.
3) If you were considering Emagair products for your engine, consider something else - do NOT purchase one and put in on your aircraft.
When Emagair have hired a competent mechanical engineering firm to redesign their systems, have FULLY tested the units under O-360 type vibration loads for thousands of hours, and publicly published the results, THEN in may be appropriate to consider these units. Until then, it is not.
If Mr. Cotner, Mr. Read, and my experiences with these units put
Emagair out of business, and it costs some of you the opportunity to get a refund on your units, I'm sorry for that, but Mr. Cotner was
lucky, and relying on luck to keep people alive is not acceptable.
Everything that I have written here is either my personal experience, my opinion, or my recommendation based on my opinion.
I know that many of you are saying (to yourselves or to others) "I
told you so", and you're right - you told me so, but my desire for
Emagair to succeed overrode what should have been enough evidence to the contrary. Feel free to write me with "I told you so" messages, if it makes you feel better.
I'm happy to address any issues, comments, or questions that anyone may have. Since Emagair never responded to my entreaties to sign an non-disclosure agreement with them, I do not have any responsibility not to explain the inner workings of the units or the problems therein.
PLEASE, PLEASE, PLEASE - distribute these messages (and Mr. Cotner's and Mr. Read's) to any and all aviation related mailing lists, fora, and printed newsletters.
--
Marc J. Zeitlin mailto:marc_zeitlin@alum.mit.edu
http://www.cozybuilders.org/Copyright (c) 2008
http://www.mdzeitlin.com/Marc/
