JetBlue, Cabin did not Pressurize
A Jetblue Airbus A320-200, registration N624JB performing flight B6-192 from Tampa,FL to Boston,MA (USA), was climbing through about FL200 out of Tampa when the crew detected a problem with the cabin pressurization, stopped the climb at FL230, descended the aircraft to 10,000 feet and returned to Tampa for a safe landing about 50 minutes after departure. A replacement A320-200 registration N784JB reached Boston with a delay of about 2.5 hours. A passenger reported the captain announced a pressurization issue, they returned to Tampa for an overweight landing. The occurrence aircraft remained on the ground for about 4 hours, then resumed service.