Boeing has been working on an upgrade for a stall-prevention system known as MCAS since a Lion Air crash in Indonesia in October.
'InshAllah Pakistan will achieve its goal of development and economic prosperity under the leadership of Imran Khan'
The scheduled flights from Sialkot for January 15 and 16, are now to take-off from the Lahore airport.
“We are responding to a drone sighting at Heathrow,” the airport officials said.
European air travellers faced mass disruption on Tuesday with around half of all flights at risk of delays following a technical problem at Eurocontrol, the agency in charge of the continent's skies.