Glad this story hasn't been forgotten

[YorkshireTyke]

..

.......drove him to swallow sedatives

So self inflicted injury ( death ) ?

Maybe "someone" prescribed them ?

[Pinkman]

As far as I know, all synthetic turbine oils contain some sort of organophosphate. (I was told the stuff is there to stabilize the oil, but I have also seen it cited as an "anti-wear compound." Any organophosphate compound may be called TCP, while it may be that it's not literally TCP, and all organophosphates are known neurotoxins.

I have some interest/knowledge (enough to be dangerous) as I am in the fuels industry but have an environmental/toxicology background.
- TCP is Tri Cresyl Phosphate, as opposed to the common antiseptic Tri Chloro Phenol, which is not an organophosphate.
- The TCP we are talking about is an amazingly effective anti wear additive for turbine engines
- This is a bleed air issue not a combustion exhaust issue.
- Alternatives to TCP have been developed for aviation use but AFAIK they don't have the same performance in more demanding turbine applications and I am told by lubricants folk there isn't an effective drop in replacement .."but one day there will be".. probably not helpful, I know. From what I have heard I don't think it's a cost or cost effectiveness issue but confess I don't really know about that part.
- Organophosphates are known to cause the symptoms referenced above but the big problem in getting acceptance of / dealing with this, as a previous poster said, is the individual variation in human sensitivity, both immediate and long term and the lack of any proven dose-response correlation that would enable a performance standard to be set

Hope that helps

[goeasy]

Good simple explanation

Originally Posted by Pinkman

I have some interest/knowledge (enough to be dangerous) as I am in the fuels industry but have an environmental/toxicology background.
- TCP is Tri Cresyl Phosphate, as opposed to the common antiseptic Tri Chloro Phenol, which is not an organophosphate.
- The TCP we are talking about is an amazingly effective anti wear additive for turbine engines
- This is a bleed air issue not a combustion exhaust issue.
- Alternatives to TCP have been developed for aviation use but AFAIK they don't have the same performance in more demanding turbine applications and I am told by lubricants folk there isn't an effective drop in replacement .."but one day there will be".. probably not helpful, I know. From what I have heard I don't think it's a cost or cost effectiveness issue but confess I don't really know about that part.
- Organophosphates are known to cause the symptoms referenced above but the big problem in getting acceptance of / dealing with this, as a previous poster said, is the individual variation in human sensitivity, both immediate and long term and the lack of any proven dose-response correlation that would enable a performance standard to be set

Hope that helps

thanks Pinkman, there is far too much mis-information out there, and too many vested interests!