| Status: | |
| Date: | 07 AUG 1974 |
| Type: | Martin 4-0-4 |
| Operator: | Aeroproveedora Proa |
| Registration: | HK-1485 |
| C/n / msn: | 14237 |
| First flight: | 1952 |
| Crew: | Fatalities: 1 / Occupants: 2 |
| Passengers: | Fatalities: 1 / Occupants: 4 |
| Total: | Fatalities: 2 / Occupants: 6 |
| Airplane damage: | Written off |
| Airplane fate: | Written off (damaged beyond repair) |
| Location: | Mariquita Airport (MQU) (Colombia)
 |
| Phase: | Approach (APR) |
| Nature: | Training |
| Departure airport: | ? |
| Destination airport: | Mariquita Airport (MQU/SKQU), Colombia |
Narrative:An engine failure was simulated on the downwind leg by reducing power on the no. 1 engine. The aircraft stalled on finals and crashed short of the runway.
PROBABLE CAUSE: Lack of coordination between the instructor and the trainee and untimely intervention by the instructor led to the stall.
Sources:
Photos

Martin 4-0-4 N143S was sold to Colombia April 1974, and crashed just four months later
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.