![]() ![]() You should know your normal cabin climb rate, typically around 300 fpm. You certainly should not be above that at 10,000 feet aircraft altitude. Most airplanes have a maximum cabin altitude between 6,000 and 8,000 feet. During every climb, part of your 10,000 foot check must be a check of cabin altitude.Oxygen supply and delivery equipment must be pre-flighted.Fuselage pressure leaks should be addressed immediately and repaired.Regardless of which version you believe - the romantic Hollywood tale or the cold facts of the accident report - there are several lessons we can take away from this mishap: Everyone eventually passed out, the aircraft ran out of gas, all aboard were killed.The captain misinterpreted it and continued to trouble shoot while continuing the climb and failing to don oxygen. ![]() The aircraft was designed with a warning horn that had two meanings: on the ground it meant takeoff configuration and in the air it meant high cabin altitude.The first officer, who had a history of SOP problems, failed to detect the improperly set switches.The mechanic didn't failed to properly apply the maintenance procedure that would have verified the pressurization leakage and failed to return the pressurization switch from its manual position to the automatic position.The airplane had a history of pressurization problems.It makes for good reading, but here is the abbreviated version: The report does note CRM issues and does a good job of figuring out what happened. ![]()
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