Yes they do remain active ALPA members, with Agency Shop, if they want to be on our seniority list, they pay dues. In fact, back in the days before Agency Shop, when anyone could drop out of ALPA and get a 2% pay raise, all Chief Pilots were required to be ALPA members.

I don't know why, I think it was because DALPA Members would say it was a 'conflict of interest' if the CP was a non-member and about to discipline them.

I do know I talked to a couple CP's and they told me they were told it was a requirement of the job. Not sure about the 4th floor cubicle captains.

Now, at that time (pre 1991) we had a LOT of non-members, (800+)mostly they were North East and Western pilots who were PO'd about the seniority list. When the Pan Am merger was announced, DALPA knew they would have a lot more non-members in the PA pilots, so they got the company to agree to Agency Shop, and we've had it ever since.

As soon as Agency Shop kicked in and the non-members had to start paying a 'contract administration fee' equal to just about the same amount as the dues, a group of PO'd non-members started a drive to replace DALPA with another in house union, called the Professional Pilot's Association, or PPA for short. I had the fun of flying with one of their founding members for months at a time.....

He even told me I couldn't wear my "No B Scale" tie tack!