As well as multiple myeloma, former servicemen who have flown Sea King, Wessex and Puma and Chinook helicopters have been diagnosed with non-Hodgkin lymphoma, throat cancer, lung cancer and testicular cancer.
Prince William's former flying instructor has died of cancer after many years of being exposed to toxic helicopter fumes.
And following the death of Zach, Mr Sutton called him a "lively and bubbly guy" and told how his death was "yet another blow" for his wife Anna-Louise, who lost her first husband and seven-year-old child in a car crash in 2015.
Flight Sergeant Zach Stubbings died aged 47 after battling multiple myeloma, a cancer that affects the bone marrow and plasma cells.
The father of three had spent nine years inhaling toxic exhaust fumes from Sea King helicopters while serving in the RAF.
