To be fair, the Karlene Petit case is real. Ms.Petit reported some practices at Delta she felt were unsafe. Delta sent her for a psychiatric exam with a company doctor in which she was diagnosed as bipolar. She was removed from her position for about two years and then reinstated (and her 1st class medical retained, after other psychiatrists (Mayo Clinic) determined she was not. She filed a lawsuit against Dekta claiming the bipolar diagnosis was in retaliation for her report.
I don't know the result of the litigation but this is a
Labor Department decision on her whistleblower retaliation complaint. At least for that level of the proceedings the Dept said retaliation wasn't clear, but it's recitation of the facts and events is, let's say, instructive.
It came up when Steve Dickson was nominated to be head of the FAA.