What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Aircraft was in cruise flight level at FL 370, then experienced a "cabin altitude warning" horn. Cabin altitude was climbing through 10,000 feet at approximately 1000-2000 feet per minute. Accomplished cabin altitude warning checklist and cabin was still climbing. Initiated emergency descent at approximately 25,000 feet MSL. Cabin altitude started descent at approximately 2000-3000 feet per minute. Passenger O2 masks did not drop. Maximum cabin altitude was 13,000 feet. No other abnormal indications other than cabin altitude warning horn.
As the FAA filed it
AIRCRAFT WAS IN CRUISE FLIGHT LEVEL AT FL 370, THEN EXPERIENCED A "CABIN ALTITUDE WARNING" HORN. CABIN ALTITUDE WAS CLIMBING THROUGH 10,000 FEET AT APPROXIMATELY 1000-2000 FEET PER MINUTE. ACCOMPLISHED CABIN ALTITUDE WARNING CHECKLIST AND CABIN WAS STILL CLIMBING. INITIATED EMERGENCY DESCENT AT APPROXIMATELY 25,000 FEET MSL. CABIN ALTITUDE STARTED DESCENT AT APPROXIMATELY 2000-3000 FEET PER MINUTE. PASSENGER O2 MASKS DID NOT DROP. MAXIMUM CABIN ALTITUDE WAS 13,000 FEET. NO OTHER ABNORMAL INDICATIONS OTHER THAN CABIN ALTITUDE WARNING HORN.
Other reports on N633SW · 1
Matched to the same aircraft by N-number and date.