An Alaska Airlines jetliner was diverted to Seattle after the plane’s cabin failed to pressurize normally Friday during a flight from Canada, an airline spokeswoman said.
The Boeing 737 landed safely at Seattle-Tacoma International Airport, where medics treated 10 passengers and three crew members complaining of ear trouble, airline spokeswoman Amanda Tobin Bielawski said. She said no other treatment was required.
“There’s nothing at this point to suggest that this is anything other than an isolated incident,” she said.
An altitude warning alarm sounded when Flight 690 reached 33,000 feet, indicating a problem with the air pressure inside the cabin, Bielawski said. She said the plane’s oxygen masks did not deploy.
The Seattle-based airline brought in another plane to take the 122 passengers the rest of the way to San Francisco.
Earlier this year, Alaska ordered a fleet-wide inspection of its planes’ air pressure systems after a series of similar cabin pressure problems. The company said no systemwide problems were found.