An infamous and rare example of where backtracking was used for large commercial aircraft was the Tenerife airport disaster , where two Boeing 747s at Tenerife North Airport were required to backtaxi in order to position themselves for take-off . The ramps and taxiways were occupied by numerous parked aircraft which had been detoured as a result of a bomb threat at another airport
Tenerife airport disaster
Tenerife airport disaster
Backtaxi