Easyjet A320 at London on Jul 16th 2015, incorrect takeoff performance computation
Last Update: January 14, 2016 / 16:28:56 GMT/Zulu time
The United Kingdom's AAIB released their bulletin (page 81) reporting the captain (41, ATPL, 6,995 hours total, 4,841 hours on type) later commented that he was using his electronic flight bag (EFB) to compute takeoff performances. After the decision to use line up at B1 he intended to change the runway length accordingly on his EFB, however, it was likely runway 08 full length remained selected due to finger size and/or the laptop's screen calibration. The captain also believed he was distracted from cross checking the correct runway length had been selected due to the need to confirm the change of flap setting with the first officer.
The AAIB reported that the aircraft became airborne 180 meters before the runway end and crossed the runway threshold at a height of 117 feet measured by the radio altimeter.
The AAIB reported following immediate safety actions were taken by the operator:
As a result of this and other recent incidents the operator will publish an article in the next edition of its Flight Safety Bulletin outlining their severity and the hazards of not crosschecking all performance calculations.
Also, the operator has added a briefing note on all of its Operational Flight Plans highlighting the importance of crosschecking takeoff performance calculations when changes are made as a result of intersection departures or other last‑minute changes to aircraft configuration or takeoff distances.
This article is published under license from Avherald.com. © of text by Avherald.com.
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