Chinook: Zulu Delta 576

This is far too long because it's presented as a human interest story rather than as a focussed analysis of the cause(s) of the crash.

The first 30 minutes of the first episode can safely be skipped. All that happens in those 30 minutes is that the occupants of the helicopter are described and we are introduced to their surviving relatives. While this perhaps helps viewers care about what happened to the specific occupants, I think it's safe to assume that anyone who decides to watch this is already motivated to do so.

There's really no need for this to be any longer than 60 minutes. So, either a single 60 minute episode or two 30 minute episodes. A total running time of 120 minutes is simply far too long.