Thanks for your valuable input Tom.

I offered the input and reference for what its worth but I have seen papers written by medically qualified researchers here in Australia who have come to the firm conclusion that OPs in synthetic turbine oils ARE a potential and actual serious medical hazard in certain conditions. I presume the article publication was approved by the CMO of CASA.

Ten years ago when I lost my licence on medical grounds the possibilty of OP poisoning was discounted simply, in my view, because the aeromedical community did not know (or did not admit to knowing) much about it in relation to aviation. ( I presented then and still do some of the classic symptoms of OP poisoning and I HAD been flying a 757 with a slight oil leak from the center bearing of the left engine, left engine bleed feeds the flight deck air)

Last year when my good friend lost HIS licence the aeromedics eventually agreed that he IS suffering from OP poisoning and his ONLY exposure to it was on the 757 a known "culprit" in certain circumstances. His symptoms are significant.

I must disagree that its not much use to we jet fliers because we DO handle and use it and perhaps from now on we will use it as a potentially hazardous substance and will take appropriate precautions, as you do.

Regards,

David.