Flotorp Adjustable Props.

[Doug Davis]

This is in the form of a Coupers alert!!  If you have and are operating your coupe with any model of Flotorp Adjustable prop. You would be well advised to remove it immediately!!!  The design is inherently flawed, and certification was withdrawn by the CAA, the last effective date for operation on any, I repeat ANY certified aircraft was April of l949.  We just got rid of ours ( the hard way) , which forced me to do some investigative work.  The results proved the above, and if you take the trouble to check the TC that was reassigned to Univair in 1988, there are mentions of several adjustables, but absolutely no mention of flotorps.  That is what spurred me to dig deeper.  Univair     still has the PMA, but as far as I know the de-certification still exists on certified aircraft.  I've now completed my obligation, what you do with the information is up to you individually.  Should you rely on your AP completely?  Thats a question you have to answer for yourself.  But since ours was installed five years after de-certification by an A&E at a flight training school, and logically there has to be O-haul time limitations, with no indication in the logs of anything ever being done, one has to wonder........!!  This information is available to any and all A&P's either through their computers or FAA printed updates.  Annuals are supposed to look at EVERYTHING, but too much is allowed to slip because in the opinion of the AP the craft will make it to next annual as is.  My question is; how does anyone but God know how the flying patterns may change in the next 12 months or 100 hrs? Doug                   Doug