42 fatalities

Madrid-Barajas Runway Collision: Iberia and Aviaco Aircraft (EC-CGS)

Madrid-Barajas-Adolfo Suárez, SpainTaxiing

On December 7, 1983, a Douglas DC-9 (registration EC-CGS) operated by Aviaco - Aviacion y Comercio was involved in an aviation accident near Madrid-Barajas-Adolfo Suárez, Spain while taxiing. 42 people were killed. Investigators recorded the probable cause as: The accident was caused by the unexplained incursion of the DC-9 onto runway 01/19 while the Boeing 727 was on its takeoff roll. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-11Data APIEditorial standards
Aircraft registered EC-CGS
Aircraft registered EC-CGS. Photo: Eduard Marmet / CC BY-SA 3.0, via Wikimedia Commons

On December 7, 1983, a Boeing 727-256 (EC-CFJ) and a DC-9-32 (EC-CGS) collided on runway 01/19 at Madrid-Barajas Airport during foggy conditions. The incident resulted in the total destruction of the DC-9 and significant damage to the Boeing, causing 51 fatalities.

Incident Overview

On December 7, 1983, a serious aviation accident occurred at Madrid-Barajas Airport involving two commercial aircraft. The collision took place on runway 01/19 at approximately 09:39:29 local time. The weather conditions at the airport were characterized by daylight visibility combined with intense fog.

Aircraft Involved

The first aircraft was a Boeing 727-256 with registration EC-CFJ, operated by Iberia. It was conducting scheduled flight IB350 bound for Rome. At the time of the incident, this aircraft had been cleared for takeoff on runway 01 and had reached V1 speed. The second aircraft was a DC-9-32 with registration EC-CGS, operated by Aviaco. It was operating scheduled flight AO134 to Santander. This aircraft had received clearance to proceed to the holding point at runway 01 via the outer taxiway.

Collision Dynamics and Damage

The two aircraft collided on the active runway. The impact resulted in an immediate fire due to fuel spillage from the left wing of the Boeing 727. The DC-9 was totally destroyed by the impact and subsequent fire. All occupants of the DC-9, consisting of five crew members and thirty-seven passengers, perished. The Boeing 727 sustained severe damage, losing almost its entire left wing and the main landing gear on that side. After the collision, the aircraft slid approximately 460 meters along the runway before coming to a stop. It remained facing the opposite direction of its takeoff roll, positioned on the left edge of runway 01.

Casualties

The accident resulted in significant loss of life. A total of fifty passengers and one assistance crew member died as a result of the impact and fire. Among the Boeing 727 occupants, thirty-four passengers and eight crew members survived out of a total complement of eighty-four passengers and nine crew members.

Probable cause

The accident was caused by the unexplained incursion of the DC-9 onto runway 01/19 while the Boeing 727 was on its takeoff roll. The DC-9 crew failed to identify that they were not on the correct route to reach the threshold of runway 01, a determination impeded by visibility conditions caused by fog in the taxiing zone.