11 fatalities

Aircraft crash in Tagus River following takeoff from Lisbon (6150)

Lisbon, PortugalTakeoff (climb)

On April 11, 1959, a Douglas C-47 Skytrain (DC-3) (registration 6150) operated by Portuguese Air Force - Força Aerea Portuguesa (1952-) was involved in an aviation accident near Lisbon, Portugal during takeoff. 11 people were killed. Investigators recorded the probable cause as: The aircraft entered a stall during its climb phase shortly after departing Lisbon-Portela de Sacavém Airport. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Source recordUpdated 2026-06-14Data APIEditorial standards

An aircraft crashed into the Tagus River shortly after departing Lisbon-Portela de Sacavém Airport, resulting in no survivors.

What happened

On the date of the accident, an aircraft departed from Lisbon-Portela de Sacavém Airport. Shortly after the departure sequence was completed and the plane began its ascent, the aircraft experienced a loss of airspeed and entered a stall. This aerodynamic failure led to the plane descending into the Tagus River.

During the climb phase, the aircraft struck the water, resulting in a high-impact accident. There were 11 fatalities recorded among the occupants on board, with no survivors reported from the wreckage.

Findings

Preliminary details indicate that the primary factor leading to the crash was an aerodynamic stall occurring during the initial climb following takeoff.

Probable cause

The aircraft entered a stall during its climb phase shortly after departing Lisbon-Portela de Sacavém Airport.