The Delta pilot was forced to make an emergency landing without being able to see due to a defective oxygen mask when the cabin pressure dropped rapidly shortly after leaving Heathrow for Atlanta.
- The pressure of the cabin fell quickly within the flight from Heathrow to Atlanta
- The plane had to descend due to lack of oxygen supply in the cabin
- When the pilot put on his oxygen mask, the lenses broke
- Two passenger masks could not be implemented to supply oxygen either
Charlotte Dean for Mailonline
A Delta pilot was forced to make an emergency landing without being able to see, because the lenses of his oxygen mask were defective.
The cabin pressure was reduced rapidly on the flight from Heathrow to Atlanta, which means that the pilot had to make an emergency landing.
During the landing, he put on his oxygen mask for the descent, however, the lenses were broken, which meant he could not see properly.
At the same time, the decent masks of two passengers were also not deployed to supply oxygen to those on board.
A Delta pilot was forced to make an emergency landing without being able to see, because the lenses of his oxygen mask were defective (file photo)
A report on the incident that occurred in August of 2017, found that a rapid drop in pressure caused an emergency in the air over London.
A flyer fainted when the flight was deliberately submerged in a dramatic descent, said the report of the Air Accident Investigation Branch.
The report added: "The commander reported that the lenses in his oxygen mask were in poor condition, which affected his visibility, while the lenses in the copilot's masks and the relief pilot were clear.
The cabin pressure was reduced rapidly on the flight from Heathrow to Atlanta, which means that the pilot had to make an emergency landing (in the image of Heathrow airport)
"During the emergency, the cabin crew informed the flight crew that all but two of the passenger oxygen masks had been deployed automatically and that a passenger had passed out and was being treated by a passenger with a medical history."
The fuel-laden flight, which contains 219 passengers and crew, made its emergency landing at Heathrow despite having ten tons of overweight.
The cause of pressure loss in the cabin could not be identified.
The report added: "The manufacturer of the aircraft was unaware of other occasions in which the masks could not be deployed on a Boeing 767 aircraft.
"If some of the oxygen masks of the passengers are not deployed automatically, the cabin crew can provide the affected passengers with portable oxygen or mechanically release the oxygen masks."