The aircraft flew holding pattern to dump/burn fuel and reduce weight before landing safely at Karachi Airport.
The aircraft departed from Karachi Airport Runway 07R at 4:36 PM. Maximum altitude attained by the aircraft 3,000 feet. For about 23 minutes from 4:49 PM to 5:12 PM it flew holding pattern at an altitude of 2,900 feet to dump/burn fuel and reduce weight. It landed safely with the power of three engines on Karachi Airport Runway 07R at 5:25 PM i.e 49 minutes after takeoff
Source: airnavradar.com
The aircraft was performing flight without any cargo, according to some news reports. In recent days it has performed flights between Shenzhen and Riyadh via Karachi.
Abbas