Hi Jwscud,
This is a link to an accident report of a TriStar which ran off the end of Leeds Bradford airport.
http://www.aaib.gov.uk/cms_resources...7%20G-BBAI.pdf
Landing distance calculations is not an exact science (too many variables) so there is a big scatter in achieved results. Sometime you may wish you had that extra 50 m of runway in front of you rather than behind you.
Please would you tell us which was the airport in post#1?