Incident Overview
On 18 May 2025, at 18:05 UTC, a loss of separation occurred between two aircraft during climb after departure from Adolfo Suárez Madrid-Barajas Airport. The aircraft involved were a Cessna 510, registration F-HIMC, operated by PRIV’AIR, and an Airbus A321, registration EC-NIA, operated by IBERIA EXPRESS S.A. The incident took place in the LEMDRNS sector, at NANDO 3B point.
Flight Details
The Cessna 510 was on a positioning flight under general aviation, while the Airbus A321 was operating a scheduled international passenger service. Both flights were under Instrument Flight Rules (IFR) and were in the climb phase en route to cruising level. The Madrid Terminal Manoeuvring Area (TMA) was configured for south operations; both aircraft were in contact with the integrated DES (East-South Departures) and Director (RES) sectors, receiving climb instructions.
Sequence of Events
At approximately 18:04 UTC, at an altitude of 24,000 feet, a loss of separation was recorded between the two aircraft. This triggered a Traffic Collision Avoidance System (TCAS) resolution advisory on one of the aircraft, which executed the corresponding evasive maneuver. Concurrently, air traffic control (ATC) issued instructions for a left turn. Following the incident, both aircraft completed their flights without further issues.
Investigation Status
The investigation, conducted by the Spanish Civil Aviation Accident and Incident Investigation Commission (CIAIAC), has focused on analyzing ATC data and reviewing testimonies and actions of those involved. The final report is in preparation and will be published at a later date.