Date & Time:
Apr 26, 1967 at 0726 LT
Type of aircraft:
Douglas C-47 Skytrain (DC-3)
Operator:
Registration:
HK-326
Flight Phase:
Takeoff (climb)
Flight Type:
Scheduled Revenue Flight
Survivors:
Yes
Schedule:
Sogamoso – San Luis de Palenque
MSN:
4631
YOM:
1942
Flight number:
AV632
Country:
Colombia
Region:
South America
Crew on board:
3
Crew fatalities:
2
Pax on board:
15
Pax fatalities:
15
Other fatalities:
0
Total fatalities:
17
Captain / Total hours on type:
964
Copilot / Total hours on type:
974
Aircraft flight hours:
31223
Circumstances:
Almost immediately after takeoff from Sogamoso-Alberto Lleras Camargo Airport, while in initial climb in limited visibility, the left engine failed. The crew initiate a circuit to return to the airport for an emergency landing when the airplane stalled and crashed in a wasteland located 8 km from the airport. The steward was injured while all 17 other occupants were killed.
Crew:
Hugo Vergel Peñaranda, pilot, †
Humberto Moreno Mejía, copilot, †
José Manuel Cifuentes.
Passengers:
José María Orduz Sierra, †
Judit Niño Monroy, †
Tobias Niño Bonilla, †
Germán Hernández, †
José Efraín Rivera Cabrera, †
Víctor Manuel Niño Colmenares, †
Martha Parrado de García, †
Roberto García, †
Flor Alba Pérez de Granados and her son N. N. , †
Noé Martínez Flórez, †
Héctor Alirio Vega Pérez, †
María del Carmen Vega Pérez, †
Manuel Abella Chaparro, †
Reinaldo Gómez. †
Crew:
Hugo Vergel Peñaranda, pilot, †
Humberto Moreno Mejía, copilot, †
José Manuel Cifuentes.
Passengers:
José María Orduz Sierra, †
Judit Niño Monroy, †
Tobias Niño Bonilla, †
Germán Hernández, †
José Efraín Rivera Cabrera, †
Víctor Manuel Niño Colmenares, †
Martha Parrado de García, †
Roberto García, †
Flor Alba Pérez de Granados and her son N. N. , †
Noé Martínez Flórez, †
Héctor Alirio Vega Pérez, †
María del Carmen Vega Pérez, †
Manuel Abella Chaparro, †
Reinaldo Gómez. †
Probable cause:
The primary cause of the accident is an inadequate correction of a previously reported mechanical fault as oil was observed leaking into the left engine turbine section. The appropriate corrective technical action was not taken. The possible contributing factor to this accident was a material failure, consisting of the front bearing of the turbine drive shaft and accessory section failing, causing the shaft to break and therefore the total failure of the left engine immediately after takeoff, causing the loss of control of the aircraft during the turn to return to the runway.
Final Report:
HK-326.pdf2.33 MB
