Aviation authorities are scrutinizing the service history of an SA Airlink plane which skidded off the runway at Port Elizabeth Airport.

The East London-bound plane veered onto the grass after it failed to take-off on Wednesday.

None of the 29 passengers or crew members on board were injured.

“There is a whole host of things that they look at when they conduct an investigation, including the paper work of the pilot as well as the paperwork of the aircraft in terms of air worthiness and so on,” said Civil Aviation Authority spokesperson Phindiwe Gwebu.