The Emirates flight #EK730 had just delivered passengers to Entebbe, Uganda and was preparing to load other passengers for Dubai when the incident happened on Wednesday afternoon, said a source at the Airport.
The flight attendant was immediately evacuated and taken to hospital with life threatening injuries.
UPDATE The flight attendant who fell off a plane at Entebbe International Airport has died. Kisubi Hospital confirmed they received the woman but she was already dead.
Press release from the Civil aviation Authority in Uganda
The exact cause of the incident was not yet clear but some eye witnesses said she was seen holding what looked like a glass bottle under her chin before she made the fall.
Other witnesses said they had seen her in a verbal exchange with colleagues as they boarded the plane.
Flight Emirates #EK730 departed 1h30 late and may land in Dubai at 22:50.
Via Daily Monitor and Tom Voltaire Okwalinga.