Incorrect takeoff performance calculation, London Luton Airport, 16 July 2015.
Before pushback, takeoff performance was calculated for a departure using the full length of Runway 08 at London Luton Airport. When the aircraft was at the holding point, prior to takeoff, it became apparent that an intersection departure may be required, due to an aircraft holding on the runway threshold. The performance was recalculated for this, with a change in flap setting. The aircraft then took off from Intersection Bravo with performance calculated assuming the full length of the runway was available.
Download glossary of abbreviations:
Published: 14 January 2016
Date of occurrence: 16 July 2015