Air New Zealand believe a tyre coming into contact with a runway light led to the dramatic landing of a Dunedin-bound flight on Friday night.
Passengers on flight NZ5759 were heading from Christchurch to Dunedin just after 7pm when they were told the plane had to be turned around because it had "hit something'' and needed to be checked further.
The aircraft, an ATR-72 turboprop, turned back towards Christchurch at 7.40pm, Flight Radar 24 shows. It landed safely at 8pm.
An Air New Zealand spokesperson confirmed this afternoon that an "initial investigation has found scuff marks on one of the aircraft's tyres".