A damaged cockpit window forced Pakistan Internation Airlines, PIA, Boeing 777 pilots to make a U-turn back to Pakistan.
On December 17, 2021, passenger flight PK9753 took off from Islamabad International Airport (ISB) in Pakistan. It was on its way to Riyadh, Saudi Arabia’s King Khaled International Airport (RUH).
The pilots returned to Pakistan when the plane was travelling at 36,000 feet in Iranian airspace near Zahedan, according to Radarbox.com data. The plane landed in Pakistan’s Karachi Jinnah International Airport (KHI).
According to Aviation Herald, the reason for the U-turn was the discovery of fractures in the cockpit window. The cracks were discovered in the cockpit’s side window.
The airline’s Boeing 777-200, registered as AP-BHX, was involved in the incident. According to planespotter.net, the widebody is 14 years old and was delivered to PIA in March 2007.
According to local press accounts, the aircraft’s side glass was fixed after an inspection in Karachi, and the plane continued its voyage to Riyadh. The AP-BHX did make a KHI-RUH trip later that day, according to flight tracking services.
Another PIA flight departing from ISB had an incident earlier that week, on December 12, 2021. The flight to Karachi was diverted twice, purportedly due to a mechanical fault with an Airbus A320 engine. A huge number of passengers apparently refused to continue their flights after the second return to Islamabad.