Learjet 45

The airplane and two-person crew departed on a positioning flight. The pilot-in-command was not flying the airplane and sat in the right seat. The second-in-command was the pilot flying and sat in the left seat. The accident occurred on the second attempt to land at the destination airport on a snow-covered runway. While descending for the airport, the pilot not flying the airplane called the runway in sight. After assessing that they were too high the pilot not flying convinced the pilot flying to circle the airplane down to land on the runway. Circling at speeds greater than allowed by the approach categories, the crew performed a 360-degree turn to align themselves with the runway. The pilot flying did not have the runway in sight, and was verbally assisted by the pilot not flying. Both pilots stated that they were aligned with the center of the runway. During the flare to touchdown the pilot flying reported an unexpected gust of wind from the left requiring a correction. The airplane touched down about 20 feet off and to the right of the runway edge. Substantial damage was sustained to the airplane's wing and fuselage.

Following an uneventful flight from San Luis Potosí, the crew was cleared to the MATEO VOR and for an ILS/DME approach to runway 05R at Mexico-Benito Juarez Intl Airport, then was instructed by ATC to increase their speed to 220 knots. The Learjet was trailing a Boeing 767-300 (Mexicana Flight 1692 from Buenos Aires), which was instructed to decrease speed to 160 knots to maintain separation with a preceding Airbus A318. At 18:41 a further instruction was given to slow down to an indicated airspeed of 150 knots. At 18:42 the Boeing 767 crossed MATEO VOR at a ground speed of 224 knots. The Learjet was following at 8 nautical miles (NM) at a ground speed of 272 knots. At 18:44 the controller instructed Mexicana Flight 1692 to slow down to the minimum approach speed. At that time, the Learjet 45 was crossing the MATEO VOR with a ground speed of 262 knots, approximately 5.7 NM behind. The controller then instructed the Learjet crew to reduce their airspeed to 180 knots. This was acknowledged but it took 16 seconds for the crew to take action. Separation between the Boeing 767 and Learjet had decreased to 3.8 NM and the Learjet entered the wake turbulence of the 767. Control was lost and the aircraft entered an uncontrolled descent, crashing on the Monte Pelvoux and Ferrocarril de Cuernavaca Avenues. The aircraft disintegrated on impact and all 9 occupants were killed as well as 7 people on the ground. Some buildings were damaged, about 20 cars were destroyed and 40 people on the ground were injured, some seriously. Among the passengers were:
Juan Camilo Mouriño Terrazo, Interior Minister,
José Luis Santiago Vasconcelos, General Attorney,
Miguel Monterrubio Cubas, Director for Social Communication.