Several international airlines have grounded Pakistani pilots amid concern that some may hold "dubious" licences.
Kuwait Air, Oman Air and Vietnam Airlines have grounded Pakistani pilots, engineers and ground-handling staff, until they receive a report from the Pakistani authorities.
It comes just days after Pakistan's aviation minister announced that 262 pilots were found to have obtained their licences through unfair means.
The minister had refrained from disclosing whether the pilots who flew the PIA flight on May 22 had fake licences, but admitted they were distracted by concerns over coronavirus and ignored repeated warnings from air traffic controllers.

At least 5 people killed in fire in Antwerp apartment block
Three people die in Mexico World Cup celebrations as fans crowd streets
US and Iran enter technical talks to secure peace deal, shipping restart
After Venezuela quakes, citizens lead rescues amid military theft accusations
Two dead after wildfire guts house in northern Greece
Afghanistan launches airstrikes on IS targets on border with Pakistan
Bangladesh warns of dengue surge as weather aids spread
Fourteen children killed in Pakistan after tutoring centre roof collapses
