Jumpseating Procedures
I work for a regional airline and we do not allow FAs from other airlines to jumpseat. I was under the impression that all 121 carriers were like this (except Jet Blue). Correct me if I'm wrong. As far as denying the jumpseat to ANYONE that is elligible...Many captains (I am referring to my airline), are under the impression that it is "their" jumpseat to give away. This is true only to a certain extent. It is true that according to the FARs, that the captain of a flight DOES have the authority to deny anyone access to the cockpit. Having said that, IF you deny access to someone, you better be able to back up your reasons for doing so...and the fact that someone didn't introduce themselves properly doesn't cut it! In addition to that, technically, the captain only has to authorize a jumpseater who will actually be sitting IN the cockpit...Anything else (i.e. "jumpseating" in the cabin) isn't technically jumpseating, but rather a courtesy extended by the company to our pilots and other 121 pilots.
EXAMPLE: (This was an actual personal experience of mine) A captain who does not like me for personal reasons outside of work, denied me the jumpseat on an aircraft that only had 19 out of 50 seats filled. I was not rude to him and I requested the jumpseat in "text book" form. Because of this, I was not able to make it to work on time and subsequently recieve a "missed-trip". When I was called into the Chief Pilot's office, I was forced to explain why I had not made it to work on time. My "missed-trip" was immediately taken off of my record and the captain in question, was called in for a meeting with the chiefs to explain to him that the jumpseat was indeed NOT his to deny to someone, unless that person was percieved to be a threat to the safety of the flight, and if he were to deny someone for that reason, there better be a good explanation. The reason could not be that he didn't like the person requesting the jumpseat. As a result, this captain recieved a letter of warning in his employee file (and not his first, by the way).
Now, having said all of that, it IS customary, and a gesture of respect, to introduce yourself properly, and ASK the captain of a flight if he would mind allowing you to jumpseat on HIS/HER flight. Someone who does not follow these procedures would be considered to be "disrespectful", and would most definately not be afforded any "extra" consideration if the W&B was going to be close.
Just some food for thought.