Accident Sequence
SANSA Flight 32, a CASA C-212 Aviocar, departed from Juan Santamaría International Airport in San Jose at 08:25 local time on January 15, 1990, en route to Palmar Sur Airport. The crew received clearance to climb to 5,500 feet, followed by an instruction to climb to 8,500 feet. During the climb, the aircraft flew into Cerro Cedral at an altitude of 7,200 feet. All 20 passengers and 3 crew members on board died in the crash.
Investigation
The investigation determined that the primary cause of the accident was the failure to comply with the proposed flight plan as discussed with air traffic control. This resulted in the aircraft operating under instrument meteorological conditions (IMC) instead of visual flight rules (VFR). Supporting factors included the absence of a Ground Proximity Warning System, pilot fatigue, and a lack of a flight safety program within SANSA.