Casualties unknown

TCAS Alert Between Aerolineas Argentinas and Business Jet in Buenos Aires (LV-FUC)

Zona Tma Baires (Buenos Aires), AR

On March 20, 2026, a BOEING B-737-8SH (registration LV-FUC) operated by Aviación Comercial was involved in an aviation accident near Zona Tma Baires (Buenos Aires), AR. Investigators recorded the probable cause as: The event resulted from a close proximity situation between an arriving commercial flight and a departing business jet, which triggered a TCAS alert. This summary draws on records from the Argentine Transportation Safety Board (JST); 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe Argentine Transportation Safety Board (JST)Primary reportUpdated 2026-09-13Data APIEditorial standards

A TCAS alert was triggered between a Boeing 737-800 and a Bombardier CL600 during approach to Aeroparque Jorge Newbery on March 20, 2026. The investigation found no imminent collision risk and confirmed separation standards were maintained.

What happened

On March 20, 2026, at 13:54 UTC, an Aerolineas Argentinas Boeing 737-800 (registration LV-FUC) was descending to 3,000 feet while proceeding toward the localizer for Runway 13 at Aeroparque Jorge Newbery. Simultaneously, a Bombardier CL600-2B19 (registration LV-BHP) departed from San Fernando airport (SADF) on Runway 05. The business jet had been instructed to maintain its runway heading and climb to 2,000 feet.

Radar data indicated that the LV-BHP subsequently appeared at an altitude of 2,400 feet. In this context, the pilot of the LV-FUC reported receiving a TCAS alert regarding the other traffic. Shortly after, the LV-BHP was observed on the surveillance display maintaining 2,000 feet, and the two aircraft had already crossed paths. Once separation was re-established and the traffic situation verified, the LV-BHP was cleared to proceed toward Ezeiza with a climb to Flight Level 050. The LV-FUC landed safely on Runway 13 at 14:03 UTC.

The investigation

The Joint Safety Board (JST) conducted a desk investigation into this air traffic event, classified as an occurrence without safety effect. The review focused on the sequence of events involving the commercial passenger flight and the non-scheduled business operation. Evidence included radar imagery supplied by EANA showing the moment of crossing and the subsequent separation of the two aircraft. The analysis examined the altitude profiles and instructions given to both crews during the critical phase of the approach and departure.

Findings

Based on the evidence collected, it was concluded that there was no condition of imminent collision between the two aircraft. The investigation established that the separations between the Boeing 737-800 and the Bombardier CL600 remained in compliance with the rules governing the airspace where the event occurred. No damage was reported to either aircraft, and no injuries were recorded.

Probable cause

The event resulted from a close proximity situation between an arriving commercial flight and a departing business jet, which triggered a TCAS alert. However, analysis confirmed that minimum separation standards were maintained throughout the encounter, preventing any imminent collision risk.