In the second incident of security breach within four days, a cargo jet belonging to logistics firm UPS was forced to return 45 minutes after take-off from the airport last night for lack of mandatory custom clearances of a consignment.
The Boeing 744 plane had taken off from the city airport at 9.30 pm on Saturday night but the ATC forced it to return and the flight landed at 10.15 PM, an air traffic control (ATC) official said.
"One of the consignments on board did not have the mandatory custom papers and upon inspection from the Customs, we ordered the plane to come back," the ATC official said.
The ATC official, however, did not divulge the detail about the destination of the aircraft.
On October 3, the two gates of the Mumbai International Airport were left unattended for over three hours following a tussle between CISF and customs authorities.
The tussle broke out over alleged delay in frisking of a Customs official by CISF and checking of entry and exit passes of CISF officials by Customs officials.