I have a situation I would like some advice on. I am a part time employee who drives air on Saturday. At our center we drive roughly an hour and a half every Saturday to pick up our air as well as the air of 3 other centers. I have been driving sat air for about 20 years and in that span I have gone to pick up the air regularly on sat mornings starting at 3am. I was informed a few weeks ago that one of the other centers that we pick air up for had created a full time Tuesday thru Saturday air position. It is a very small center and they only get about 5-10 air packages on Saturday. So they took the air pick up away from our center and gave it to the other center because they dont have enough work on saturdays for 8 hours. First can they do this take work away from our center and give it to another? Second if I file a grievance what should I file under? I’ve asked my stewards and they either tell me not to waste my time they can do that or they don’t know what to file under any help would be appreciated.