Cathay plane in emergency landing before
Hong Kong - A Cathay Pacific Boeing 747-400 that made an emergency landing this week when the cabin lost pressure had made a similar emergency landing in September, the airline said on Wednesday.
The 21-year-old plane, the oldest in the Hong Kong airline's fleet, put out a mayday call and made an emergency landing in Kazakhstan on Monday with 320 passengers and crew on board.
The emergency landing six hours into the Amsterdam to Hong Kong flight was forced by the failure of a valve in the cabin pressurisation system, the airline said afterwards.
A Cathay Pacific spokesperson confirmed on Wednesday the same plane had made an emergency landing in London on September 11 when another valve in the cabin pressurisation system malfunctioned.
The spokesperson said an investigation was underway into Monday's emergency landing but insisted the incident was "very rare and completely unrelated to the Heathrow valve failure".
The plane was expected to be put back into service once the valve was replaced.
A replacement Cathay Pacific plane flew the stranded passengers and crew to Hong Kong on Tuesday.