HI folks!
A little late to this party, my false positive came a year ago may. Like so many here, backed up with numerous time appropriate follow on PeTH and etg hair tests that are all negative. I have no idea even of a source of incidental exposure.
I was in an abstinence program, another story fraught with fraud waste and abuse, so was offered relapse treatment, 100 days inpatient, but refused because I did not relapse, and was fired from a major airline. Awaiting arbitration, as that's the only due process allowed a unionized employee. As for a union helping, well, think again. They are not and recommended I go to the relapse treatment. And even have some pilots on a contract that removes their right to grieve! So they get fired with NO recourse.
Bad PeTH test was collected by anylab in Atlanta, processed by USDTL. A follow on test from them was negative, as was a follow on processed on whole blood from lab Corp I think.
As for post collection synthesis, absolutely possible. The manufacturer of the blood spot cards specifically states waiting a minimum of two hours before the specimen is sealed in a plastic bag. If your blood ferments on that card, and there's PLD in that blood spot, then PeTH is gonna be formed. It's not called a DRIED blood spot for nothing.
I have a lawyer and 4 forensic toxicologists working on the matter, what better way to spend my 401k....
There are many other pilots in my position, but none have grieved it that I know of.
At the end of my arbitration I'm willing to share any and all of the forensic reports I collect. Surely they can help someone.
Hey there. Im in the same boat you. 11 negatives, 1 positive (21ng) and no longer eligible for a first class. Would love to hear how far along in your litigation you are, as i am considering the same.