ASN Aircraft accident Boeing 747-244B (SF) 9G-MKJ Halifax International Airport, NS (YHZ)
I hope history has not repeated itself.
MK Airlines Flight 1602, suffered 2 tailstrikes due to incorrect V speeds, eventually got airborne but crashed into the earthen berm 100m from the runway.
V speeds entered (incorrectly) from the BLT (Boeing Laptop Computer).
The full safety report is well worth reading.