Yes there is in fact a Blacklist that the Corporate World will use against you if you were involved in any legal, or whistleblower action against a previous employer etc. Airline companies are no exception either. They will not disclose any of this Blacklisting info with you though as they are fearful of a deformation of character lawsuit against them. Some companies will bad mouth you behind closed doors which is also kept a secret.
The Dirtbag companies like Kalitta, Amerijet, Custom Air, Tradewinds, Arrow, Atlas, and Ryan desire for you to not disclose or writeup marginal airplanes that disrupt their schedules etc. So, in other words they desire to control you!
The Scab blacklist is a separate entity I believe.
If anyone else out there has any info on this please let us all know.
Thanks