A321
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Security; Flight Deck / Cabin / Aircraft Event Passenger Misconduct
General Police / Security Involved
Human Factors
In cruise flight at flight level 300; PAX attempted to open 4L door in flight.Flight crew diffused situation by requesting PAX return to seat; and observed no further disruptive behavior. Took precaution by locking down cockpit door; crew and able bodied PAX watched PAX in question for any other suspicious behavior. Spoke to dispatch and agreed to continue to destination where ground security and law enforcement met the aircraft and took individual into custody.PAX may have had mental disability and no further disruption was detected after the flight crew explained the severity of his actions.
A321 Captain reported a passenger tried to open a cabin door in flight.