Smoke was seen emanating from the left wheel as the Saudi Arabia Airlines flight landed at Lucknow airport on Sunday morning.

The fault in the wheel was likely due to a leak in the hydraulic system.

The plane, an Airbus A330-343, left Jeddah at 10:45 pm and reached Lucknow around 6:50 am, according to data from Flightradar24.

In a separate incident, a Hyderabad-bound Lufthansa flight made a U-turn and landed back at Frankfurt airport last evening due to a bomb threat, said sources.

The bomb threat was received about two hours after the flight, a Boeing 787-9 Dreamliner, took off from the German city at 2.14 pm local time on Sunday. It was scheduled to land at the Rajiv Gandhi International Airport early Monday.

Lufthansa, however, claimed in a statement to the news agency ANI that it was forced to turn around since it did not receive a permit to land in Hyderabad.

Last Thursday, a Boeing 787-8 Dreamliner operated by Air India crashed into a building, killing all except one of the passengers.

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