Narrative:Singapore Airlines flight SQ286 taxied to runway 05L at Auckland's International Airport and was cleared for takeoff. When the captain rotated the aeroplane for lift-off the tail struck the runway and scraped for some 490 metres until the aeroplane became airborne. The tail strike occurred because the rotation speed was 33 knots less than the 163 knots required for the aeroplane weight. The rotation speed had been mistakenly calculated for an aeroplane weighing 100 tonnes less than the actual weight of 9V-SMT. A takeoff weight transcription error, which remained undetected, led to the miscalculation of the takeoff
data, which in turn resulted in a low thrust setting and excessively slow takeoff reference speeds. The system defences did not ensure the errors were detected, and the aeroplane flight management system itself did not provide a final defence against mismatched information being programmed into it.
During the takeoff the aeroplane moved close to the runway edge and the pilots did not respond correctly to a stall warning.
Probable Cause:The final report did not contain a "Probable cause".
Forced landing on runway
Official accident investigation report
Follow-up / safety actions
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not
display the exact flight path.
Distance from Auckland International Airport to Singapore-Changi International Airport as the crow flies is 8385 km (5241 miles).