}}</ref> The two-mask generator is approximately {{convert|63|mm|in|abbr=on}} in diameter and {{convert|223|mm|in|abbr=on}} long. The three-mask generator is approximately {{convert|70|mm|in|abbr=on}} in diameter and {{convert|250|mm|in|abbr=on}} long.
AccidentalIn May 11, 1996, accidental activation of improperly shipped expired generators, mistakenly labeled as empty, caused the [[ValuJet Airlines Flight 592]] crash, killing all on board.<ref>{{cite episode|series=[[Mayday (Canadian TV series)|Mayday]]|title=Fire in the Hold|season=12|number=2|date=10 August 2012}}</ref> An ATA DC-10, Flight 131, was also destroyed while parked at O'Hare Airport, on August 10, 1986. The cause was the accidental activation of an oxygen canister, contained in the back of a broken DC-10 seat, being shipped in the cargo compartment to a repair station. There were no fatalities or injuries because the plane contained no passengers when the fire broke out.<ref>{{cite web |title= OT McDonnell Douglas DC-10-40 N184AT |url= https://asn.flightsafety.org/asndb/326951 |work= [[Aviation Safety Network]] |url-status= live |archive-url= http://archive.today/2024.06.21-035329/https://asn.flightsafety.org/asndb/326951 |archive-date= June 21, 2024}}</ref><ref>[http://www.airliners.net/photo/American-Trans-Air/McDonnell-Douglas-DC-10-40/0148751/L/&sid=faf57dd90832c5c13834020fb2255dc2 Airliners.net, Photograph, Dave Campbell]</ref>