Since some are already into March 27th, I will go ahead and post it...
But 35 years ago today (or tomorrow for those of us in North America) was the tragic accident at Tenerife. Of 644 Passengers and crew members, only 61 survived the world's deadliest accident in aviation history.
That was certainly a very sad day in aviation. I was very young when it happened and so do not recall the events from then but read about it many times since. If any of you ever goes to Tenerife visit the memorial in Mesa Mota, a hill overlooking TFN. It is certainly a moving sight.
The Tenerife disaster was a combination of improper crew communications (the co-pilot couldn't override the captain's orders even on safety issues) and the fact the airport lacked ground radar, which would have probably avoided this accident altogether because the control tower would at least know the position of the planes on the runway and could have warned the KLM 747 NOT to attempt any takeoff until the Pan Am 747 was out of the way.
Today, with virtually all major international airports sporting ground radars, it would be very difficult to have a collision like this.