No fatalities

Aircraft crash into Guanabara Bay after stall following takeoff from Rio de Janeiro (LV-SEC)

Rio de Janeiro-Santos Dumont, BrazilTakeoff (climb)

On January 29, 1942, a Potez 62 (62.0 & 62.1) (registration LV-SEC) operated by Government of Argentina was involved in an aviation accident near Rio de Janeiro-Santos Dumont, Brazil during takeoff. No fatalities were reported. Investigators recorded the probable cause as: A partial collapse of the undercarriage during takeoff caused propeller-runway friction, preventing the aircraft from gaining sufficient speed and height for a safe climb. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 6 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-08-05Data APIEditorial standards

An aircraft named Francisco Mendez Gonçalves crashed into the Bay of Guanabara shortly after departing Santos Dumont Airport. All 13 occupants were rescued, with six sustaining serious injuries.

What happened

The incident occurred immediately after liftoff from Rio de Janeiro-Santos Dumont Airport. The aircraft, identified by the name Francisco Mendez Gonçalves, experienced significant difficulties in accelerating and climbing following departure. Unable to gain adequate speed or altitude, the plane entered a stall and subsequently impacted the water surface of the Bay of Guanabara. The airframe sank after the impact. Emergency response teams successfully rescued all 13 occupants from the water. Medical assessments indicated that six individuals sustained serious injuries as a result of the accident.

Findings

Official investigations concluded that the primary factor leading to the crash was a mechanical failure during the takeoff roll. Specifically, a partial collapse of the undercarriage caused the propellers to make contact with the runway surface. This friction prevented the aircraft from achieving the necessary velocity and lift required for a safe climb after liftoff, directly resulting in the stall and subsequent water impact.

Probable cause

A partial collapse of the undercarriage during takeoff caused propeller-runway friction, preventing the aircraft from gaining sufficient speed and height for a safe climb.