international airport. at 17:12.33, the recorded cabin pressure dropped from 14.09 to 11.64 pounds per square inch, when the aircraft was at 14,830 feet and 271 knots, the cabin altitude greater than 10,000 feet warning activated. at 17:12.34, the master caution activated. the cabin pressure dropped to 9.08 psi, at approximately 14,850 feet and 271 knots. at 17:12.52, the master caution