Originally Posted by HighFlight

If the chime is really for FAs, and provides a known amount of time, then it should be based on time to landing, not altitude. Consider flights that never get up to 10,000.

OAL use 10,000 MSL for the chime, just curious as to why we choose to be different. Haven’t really paid attention when on DL JS, but maybe it’s “the Delta way”.