SAN Ecuador - Servicios Aéreos Nacionales

After takeoff from Guayaquil-Simon Bolivar Airport runway 21, while in initial climb, the left engine failed. The pilot informed ATC about the situation and was cleared to return for an emergency landing. On final approach, the right engine lost power and the airplane lost height and crashed in a swampy area short of runway threshold. A crew member and seven passengers were killed while 20 other occupants were injured. 72 other occupants escaped uninjured. The aircraft was destroyed.

For unknown reasons, the four engine airplane landed long on runway 23 with an excessive speed. After touchdown, the crew started the braking procedure but the captain realized he could not stop the aircraft on the remaining distance. Thus he elected to steer the aircraft to the right of the runway. The right main gear dug into soft ground, causing the right wing to struck the ground as well as both right engines n°3 and 4. There were considerable structural damages to the right wing and right engines so the aircraft was considered as damaged beyond repair. There were no injuries.

The crew filed an IFR flight plan from Guayaquil to Cuenca. After passing over the city of Puna, he decided to cancel the flight plan and continued under VFR mode. While descending to Cuenca, pilots encountered low clouds and failed to realize his altitude was insufficient when the four engine airplane struck the slope of a mountain located few km from the airport. The aircraft was destroyed upon impact and all 24 occupants were killed.

While descending to Cuenca-Mariscal Lamar Airport in poor weather conditions, the four engine airplane struck the slope of a mountain located in the Cajas Mountain Range, about 40 km north of the intended destination. The wreckage was found few hours later and all 33 occupants were killed. The accident occurred in IMC conditions while the crew was approaching Cuenca Airport under VFR mode.