Incident Overview
On September 13, 2018, at 14:20 UTC, a Cessna 525 (registration LV-GVQ) began taxiing from commercial parking position 2B at Aeropuerto Internacional San Fernando, Buenos Aires, bound for Carrasco International Airport, Montevideo. During the taxi, while making a right turn toward the taxiway, the aircraft collided with a stationary Learjet 45 (registration LV-GQM) parked at position 3.
Both aircraft sustained substantial damage. All four crew members (two per aircraft) reported no injuries. The incident occurred in daylight with good weather conditions.
Investigation Findings
The flight crew of the Cessna stated that upon initiating the right turn, the pilot-in-command detected a brake system failure and was unable to complete the 180-degree turn with applied braking. The aircraft continued in a wide arc until impacting the Learjet.
A functional test of the brake system conducted after the incident revealed no anomalies. However, the investigation determined that several days earlier, during a communication equipment check, the circuit breaker (fusible) controlling the brake system had been disconnected. On the day of the incident, the crew did not notice that this circuit breaker was disconnected, nor did they observe the "PWR BRK LOW PRESS" caution light on the annunciator panel.
The pre-taxi checklist includes a verification of the annunciator panel, but this step was not effectively performed. The parking plan indicated that position 2B only penalizes position 2, but in practice its use affected both positions 2 and 3. Additionally, the airport's parking rules required marshaller assistance for all entries and exits to positions.
No conclusions or probable cause are provided in the available source material.