Originally Posted by sailingfun

Delta can move a trip to another base however if they do so it must be covered by a reserve pilot. If they can’t cover it with a reserve the trip must be returned to the original base and covered via the trip coverage ladder. This is a clear violation of the contract and probably the one I see happen most often. Whoever should have been awarded the trip in the original base should be paid. Submit it to ALPA. The trip coverage sequence is section 23N.
This happens often because the scheduler must manually rebuild the trip to move it. They then find out the reserves they thought they had are illegal or otherwise unavailable. At this point they are supposed to rebuild the trip again and move it back but it’s much less workload to simply cover it in the base it now resides with a white or greenslip.