MD-83
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical
Air Traffic Control Issued New Clearance; Flight Crew Took Evasive Action; General Declared Emergency
Aircraft
At FL290 Cabin Altitude Warning Light came on. Emergency descent started; First Officer completed the QRH. Was not able to maintain cabin altitude in auto or manual. Masks dropped in cabin. Descended to 10;000 feet. Declared an emergency; and landed without any more problems. No passengers were harmed.
MD-83 Captain reported loss of cabin pressure at FL290. Unable to control cabin pressure the flight declared an emergency; descended to 10;000 feet and continued to a safe landing.