B737 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Flight Crew Last 90 Days 104; Flight Crew Total 15533; Flight Crew Type 3594
Aircraft Equipment Problem Less Severe
Flight Crew Returned To Departure Airport
Aircraft; Human Factors
Shortly after takeoff; FA (Flight Attendant) called to say door 2R was open. There was no indicator light on. Cabin was not pressurizing. Returned to ZZZ landing uneventfully. Dispatch was notified; no priority handling requested. Aircraft was under landing weight. Was told by FA front edge of door 2R was open 3-4 inches.
B737 Captain reported that a door opened resulting in a pressurization leak and a return to the departure airport.