The final investigation into the March 23 crash of a Colombian C-130 Hercules that killed 69 members of the country’s security forces identifies excess weight as a contributing factor, contradicting an April preliminary assessment that the aircraft was within the takeoff weight limit for Puerto Leguizamo’s runway.
La FM reported on Oct. 26 that investigators attributed the crash to human error, excess weight, and runway conditions. Specialists from Colombia’s Air Force (FAC) and the U.S. Air Force have formally closed the investigation. The final report was delivered to the Ministry of Defense about a month before La FM published its findings, but the full document has not been made public.
The central question is how investigators moved from an initial estimate that the aircraft was within its permitted weight to a conclusion that excess weight contributed to the crash.
Why does the final report contradict the April findings?
In April, Colonel Luis Fernando Giraldo Escobar, the FAC’s director of operational safety and lead investigator into the crash, presented preliminary findings. Based on interviews, cockpit voice recordings, and calculations, the investigation team estimated the aircraft weighed about 133,000 pounds at takeoff. The maximum possible takeoff weight established for the conditions at Puerto Leguizamo was 139,000 pounds.
That put the aircraft approximately 6,000 pounds below its weight limit. Giraldo said the investigation had not yet determined the cause of the crash, and the preliminary report did not assign responsibility.
The weight records for the personnel aboard were not available after the accident. Investigators reconstructed the estimate using other evidence, including interviews and cockpit recordings. The April assessment therefore reflected the calculations available at that stage of the investigation.
The final findings now identify excess weight as one of three contributing factors. Without the full report, it is not possible to establish whether investigators revised their weight calculation, identified a problem with the original data, or reached the conclusion through a different analysis. The reported findings do not provide a new weight figure or explain how the aircraft’s loading exceeded the applicable limit.
That distinction is important because the conclusion does more than add detail to the preliminary account: It appears to reverse one of its specific findings.
The runway and trees were already under scrutiny
The runway at Puerto Leguizamo is about 1,200 meters (0.745 miles) long. In April, FAC reported that the aircraft struck three trees in its departure path approximately four seconds after takeoff. The preliminary investigation found that the impact affected the aircraft’s engines and reduced their power.
FAC also recommended restricting takeoffs from the affected runway end until obstacles near the departure path could be cleared. The trees were therefore a known hazard in the initial investigation, not a detail that emerged only in the final findings.
The final report identifies runway conditions as another contributing factor. However, the outlet’s account does not specify whether this conclusion concerns the runway’s length, its surface, nearby obstacles, or a combination of operational conditions. Nor does it explain whether the earlier recommendation to remove obstacles was implemented before the crash investigation concluded.
It remains unclear how runway conditions and aircraft weight interacted in the incident. Although the report lists both as contributing factors, the full text has not been released to show how investigators weighed their relative significance.
What happened in the final seconds of the flight?
The aircraft, registration FAC 1016, was carrying security-force personnel from Puerto Leguizamo to Puerto Asis, both in Putumayo. According to the final findings reported by La FM, it struck three trees about four seconds after leaving the ground.
Investigators found branches up to 16 centimeters (about 6 inches) in diameter inside an affected engine. The impact disrupted engine operation and reduced power, leaving the pilot trying to regain control. The aircraft remained airborne for about 36 seconds before crashing more than 2 kilometers (1.2 miles) from the takeoff point.
The investigation reviewed the aircraft wreckage, terrain, and weather conditions, along with testimony from survivors. The pilot warned those aboard to prepare for impact before the plane went down.
A total of 126 people were aboard the aircraft — 113 Army personnel, 11 FAC crew members, two National Police officers, and no civilian passengers. The crash resulted in 69 fatalities (61 Army, six FAC, and two police officers) and left 57 survivors.
The final total differs from an initial statement by then-FAC commander General Carlos Fernando Silva, who said the aircraft carried 114 passengers and 11 crew members, a total of 125. The later breakdown accounts for 126 people across the three security institutions.
What remains unanswered?
FAC had previously described the aircraft as airworthy, meaning it met applicable requirements to operate. In April, Giraldo said investigators had found no records indicating active operational restrictions and that the aircraft was covered by a maintenance program following manufacturer guidance. Those findings addressed its documented status before the crash; they did not settle the questions about weight, runway conditions, or the impact with the trees.
The final investigation now links human error, excess weight, and runway conditions to the accident. But the publicly reported summary does not identify the specific human action involved, explain the change in the weight assessment or detail which runway conditions contributed to the crash.
Those answers matter to understanding whether the accident resulted from a loading decision, an operational error, hazards along the takeoff path, or a combination of factors. Until the full report or a detailed official summary is released, the apparent reversal on weight remains the most significant unresolved issue in the findings.