Originally Posted by
AreOut
the ATC certainly knew the plane had PAX because it's a regular flight to Dusseldorf, the difference isn't a few meters but a kilometer, ATC may not be accountable for what happened but certainly morally responsible, some things are just clear without running any calculations
Despite many negative comments about your message and reasoning, you are more than right.
Just keep in mind that you have the full story, especially its ending, which the ATC didn't have, and it's always difficult to take a big decision like refusing a takeoff clearance, but you are more than right.
Aviation safety comes from the multiplication and superimposition of many barriers, the TEM model counts a small dozen of them.
It was very unlikely that this plane would be able to take off. Even less likely that the acceleration stop distance in case of failure at V1 would have been within the available runway distance.
Some airfields in similar configuration will ban takeoffs from such intersections.
Either because they don't offer as much runway as other intersections (even if some airplanes could takeoff with the available distance)
Or because they can be mistaken and pilots are deemed more likely to wrongly depart from there. So again, even if some airplanes could takeoff safely from there, they still ban takeoffs from there.
What most posters are missing, when they remind that ATC has no way of doing the perf calculations and that the ERJ could takeoff in only 1200m, what they are missing is that such takeoffs are planned properly from the cockpit preparation stage, at the gate. If the crew planned an intersection and they're trying to takeoff with half the runway missing, it's very different from a situation in which they plan the takeoff from the beginning on the shorter portion.
Also, we don't really have the proper timeframe in the recording, but it's likely the captain said they could takeoff from there very quickly. Whereas you need quite a long time to do a proper performance calculations.
I wouldn't be surprised if, in the near future, some changes were made in the LYBE local regulations about intersection use...