Flight 1182 was en route to Toyama airport but headed back to the Sapporo-New Chitose airport after the crack was found on the outermost of four layers of windows surrounding the cockpit, a spokesperson said, adding there were no injuries reported among the 59 passengers and six crew.
The aircraft was not one of Boeing‘s 737 MAX 9 airplanes. These have been in the spotlight after a cabin panel broke off a new Alaska Airlines jet in mid-air last week.
“The crack was not something that affected the flight’s control or pressurisation,” the ANA spokesperson said.
Last week, a panel of the plane – called a door plug – flew off in the middle of an Alaska Airlines flight forcing the passenger jet to make an emergency landing. Both United Airlines and Alaska Airlines later said they found multiple loose parts on Boeing 737 Max 9 aircraft.
The US aviation regulator on Friday extended the grounding of Boeing 737 MAX 9 airplanes indefinitely for new safety checks and announced it will tighten oversight of Boeing itself.
Amid chaos over a panel flying off a Boeing 737 Max 9 airplane mid-flight, the Federal Aviation Administration (FAA) also said it planned to increase oversight of the production and manufacturing of the aircraft.
Additional reporting by agencies