https://sg.news.yahoo.com/fresh-questions-raised-over-cathay-025439389.html
Oxygen incidents and events
October 2 KA712 Hong Kong-Nanning (1 bottle of 7, crew sabotage ruled out)
September 27 KA831 Shanghai Pudong-Hong Kong (1 bottle of 16, crew sabotage ruled out)
September 27 KA622 Hong Kong-Hangzhou (3 bottles out of 16, human sabotage ruled out)
September 23 KA730 Kuala Lumpur-Hong Kong (1 bottle out of 16, two flight attendants fired)
September 16 CX502 Hong Kong-Osaka (1 bottle out of 20, shut-off valve inadvertently opened during a routine check by cabin crew.)
September 4 KA221 Da Nang-Hong Kong (1 bottle out of 7)
September 1 KA459 Kaohsiung-Hong Kong (1 bottle out of 16)
August 30 KA361 Bali-Hong Kong (1 bottle out of 16)
August 18 CX826 Hong Kong-Toronto (8 bottles out of 22)
August 17 CX826 Hong Kong-Toronto (5 bottles out of 22)
Oxygen incidents and events
October 2 KA712 Hong Kong-Nanning (1 bottle of 7, crew sabotage ruled out)
September 27 KA831 Shanghai Pudong-Hong Kong (1 bottle of 16, crew sabotage ruled out)
September 27 KA622 Hong Kong-Hangzhou (3 bottles out of 16, human sabotage ruled out)
September 23 KA730 Kuala Lumpur-Hong Kong (1 bottle out of 16, two flight attendants fired)
September 16 CX502 Hong Kong-Osaka (1 bottle out of 20, shut-off valve inadvertently opened during a routine check by cabin crew.)
September 4 KA221 Da Nang-Hong Kong (1 bottle out of 7)
September 1 KA459 Kaohsiung-Hong Kong (1 bottle out of 16)
August 30 KA361 Bali-Hong Kong (1 bottle out of 16)
August 18 CX826 Hong Kong-Toronto (8 bottles out of 22)
August 17 CX826 Hong Kong-Toronto (5 bottles out of 22)