Date & Time: May 18, 2011 at 2050 LT
Type of aircraft:
Saab 340
Operator:
Registration:
LV-CEJ
Flight Phase:
Flight
Survivors:
No
Schedule:
Córdoba - Mendoza - Neuquén - Comodoro Rivadavia
MSN:
025
YOM:
1985
Flight number:
OLS5428
Country:
Argentina
Crew on board:
3
Crew fatalities:
3
Pax on board:
19
Pax fatalities:
19
Other fatalities:
0
Total fatalities:
22
Captain / Total flying hours:
6133
Captain / Total hours on type:
2187
Copilot / Total flying hours:
1342
Copilot / Total hours on type:
288
Aircraft flight hours:
41422
Aircraft flight cycles:
44477
Circumstances:
Aircraft left Neuquén at 2008LT and the climb was uneventful. After reaching FL179, crew informed ATC he was encountering icing conditions and requested a lower altitude. He obtain the permission to descent to FL140 and when the aircraft reach this level, ice accretion increased on wind shields and wings. Aircraft' speed decreased and it stalled. Crew tried to regain control but aircraft dove into the ground and disintegrated on impact. All 22 occupants were killed.
Probable cause:
In cruising flight, aircraft went out of control and stalled, descended, impacted the ground and exploded, after encountering severe icing conditions.
The following factors were considered as contributory:
1) a probable inadequate flight planning,
2) a probable inadequate operational decision making on the part of the pilot,
3) a probable loss of situational awareness on part of the flight crew,
4) a probable complacency on the part of the cockpit crew.
Final Report:
LV-CEJ.pdf7.32 MB