B737-300
Flight Crew Last 90 Days 195
Aircraft Equipment Problem Critical; Deviation - Altitude Excursion From Assigned Altitude
Flight Crew Diverted; General Declared Emergency
Aircraft
At cruise; we had a Cabin Altitude Warning horn come on. We did the memory items and started our emergency descent. The cabin altitude at the time was about 11;000 feet. We completed the QRH; and diverted to the nearest suitable airport.
A B737-300 flight crew initiated an emergency descent and diverted to a nearby airport when their cabin altitude exceeded 11;000 feet while in cruise at FL370.