Ten fire appliances attended an emergency at Belfast International airport on Wednesday morning.
Passengers on a Flybe flight from Southampton en route to Belfast City airport were diverted to the capital’s International airport after a full emergency was declared.
Both airport fire and police were deployed as a precaution well as the external emergency services, an airport spokeswoman said.
The pilot called the emergency after realising the runway at the City airport would be too short for landing.
A spokesman for the airline said: “Flybe can confirm that Flight BE986 from Southampton experienced a technical fault which required a longer runway for landing than that available at Belfast City Airport.
“The pilot therefore elected to divert to Belfast International Airport where the aircraft landed normally and the 49 passengers and four crew disembarked safely and without incident.”
Passengers were bussed to the City Airport.