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4 fatalities

Twin-Engine Airplane Crashes During Photogrammetry Mission, Four Killed (PT-DMN)

Paracuru, BrazilFlight

On September 27, 1974, a Rockwell Aero Commander 680 (registration PT-DMN) operated by Prospec was involved in an aviation accident near Paracuru, Brazil in flight. 4 people were killed. Investigators recorded the probable cause as: It is believed that the loss of control was the consequence of an aileron failure in flight. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 3 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary report: the Brazilian Aeronautical Accident Investigation and Prevention Center (CENIPA)Updated 2026-07-04Data APIEditorial standards

A twin-engine airplane conducting an aerial photogrammetry mission for the Rio Acaraú project lost control and crashed in a wooded area, destroying the aircraft and killing all four occupants.

Accident Details

On an unspecified date, a twin-engine airplane conducting a local aerial photogrammetry mission for the Rio Acaraú project lost control in flight and crashed into a wooded area. The aircraft was totally destroyed in the impact. All four occupants—two crew members and two engineers—were killed.

Occupants

The crew consisted of pilot Alfredo Sender and navigator Henrique Presgrave, a co-founder of Prospec. Passengers were engineers José de Almeida and John Mirstik.

Probable Cause

According to official findings, the loss of control was believed to be the consequence of an aileron failure in flight.

Related events

Same operator

Frequently asked questions

What happened in the 27 Sept 1974 Rockwell Aero Commander 680 accident near Paracuru, Brazil?

A twin-engine airplane conducting an aerial photogrammetry mission for the Rio Acaraú project lost control and crashed in a wooded area, destroying the aircraft and killing all four occupants.

Were there any fatalities in the 27 Sept 1974 Rockwell Aero Commander 680 accident?

The accident was fatal, resulting in 4 fatalities.

What aircraft was involved and where did it happen?

The accident on 27 Sept 1974 involved a Rockwell Aero Commander 680, registration PT-DMN, operated by Prospec, at Paracuru, Brazil.

What was the probable cause of the accident?

It is believed that the loss of control was the consequence of an aileron failure in flight.

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