Cabin Door Swings Open on Citation During Climb From San Francisco

On August 6, 2015, a Wheels Up Citation Excel/XLS departed San Francisco International Airport for Drummond Island, Michigan. The aircraft was carrying two pilots and five passengers. During the initial climb, at about 2,000 feet, the main cabin door opened.

The pilot immediately declared an emergency and requested to return to San Francisco. In the recorded exchange, the crew reported that the aircraft could not climb and was having difficulty maintaining clearance because of the clouds. The problem was therefore not simply a cabin inconvenience; the crew was managing an aircraft whose climb capability and control workload had been affected during the departure.

The aircraft subsequently came out of the clouds and the crew was able to make a visual approach back to SFO. During the approach, a controller initially reported an apparent landing-gear problem. Contemporary reporting later explained that the hanging cabin door had been mistaken for a gear leg. The landing gear itself was functioning normally.

The Citation landed safely on Runway 28R, with emergency equipment standing by. The two pilots and five passengers evacuated after the landing, and contemporary reports said there were no injuries.

The incident was initially described in some reporting as a door flying off, but later clarification from Wheels Up established that the main entry door remained attached to the aircraft throughout the flight. The more precise description is that the door swung or opened in flight and remained attached while the aircraft returned to SFO.

The available public record does not establish a final maintenance or mechanical cause for the door opening.

The initial emergency call was made while the Citation was still climbing through roughly 2,000 feet. The pilot told the controller that the aircraft could not climb and could not maintain clearance because of the clouds. Contemporary coverage described the crew as having to manage the aircraft while dealing with the open door, and the recorded exchange shows that returning to SFO became the immediate priority.

The weather and altitude added another complication. The aircraft could not simply climb above the cloud layer, and the crew ultimately made a visual approach after emerging from the clouds. The return therefore involved both the original door problem and the need to manage the aircraft’s approach back into the airport environment.

On final approach, a controller reported what appeared to be a landing-gear problem. The later accounts explain that the hanging door was mistaken for a gear leg. The crew’s landing gear was functioning normally, allowing the Citation to land on Runway 28R. Emergency equipment was standing by, and the occupants evacuated after the landing.

The incident is also a useful example of why wording matters in aviation reporting. “Door flew off” was the description heard in the emergency exchange, but later clarification established that the door did not separate from the aircraft. Using the more precise description avoids turning an understandable cockpit description into a literal claim about structural separation.