Overloaded Twin-Engine Aircraft Crashes in Mountainous Terrain (FAP329)

Incident Overview and Departure Details A twin-engine aircraft departed San Ramón-Capitan Alvarino Airport at 1730 local time on the second leg of a scheduled trip to Lima. The aircraft was carrying 57 passengers, a crew of five, and a cargo load consisting of various goods, including wood and animals. ## Flight Progression and Impact During the climb phase, the captain notified air traffic control of engine problems and stated that the aircraft was unable to maintain the assigned altitude. Approximately ten minutes after takeoff, the aircraft struck the slope of a mountain located about 30 kilometers northwest of Tarma. The aircraft disintegrated upon impact, resulting in the deaths of all 62 occupants on board. ## Official Findings and Contributing Factors The official investigation determined that the aircraft was operating with 57 passengers despite a maximum certified passenger capacity of 44. The investigation also concluded that the aircraft was unable to gain sufficient altitude due to being overloaded. Additionally, the crew was unable to obtain full engine power because they were subjected to strong contribution, which further impaired the aircraft's performance during the climb.