Guerrero Negro – Tijuana

On September 30, 1987 at 07:59 AM, Guerrero Negro – Tijuana experienced a crash involving Cessna 340, operated by Aero Servicio de Sonora, with the event recorded near Otay Mesa California.

The flight was categorized as charter/taxi (non scheduled revenue flight) and the reported phase was landing (descent or approach) at a airport (less than 10 km from airport) crash site.

6 people were known to be on board, 6 fatalities were recorded, 0 survivors were identified or estimated. This corresponds to an estimated fatality rate of 100.0%.

Crew on board: 1, crew fatalities: 1, passengers on board: 5, passenger fatalities: 5, other fatalities: 0.

The listed crash cause is human factor. At approximately 0600, the aircraft departed Guerrero Negro, Mexico on an air taxi flight to Tijuana, Mexico. At 0715, the Tijuana weather was reported as partially obscured, visibility 1 mile with fog, haze and smoke, wind calm. During arrival, the pilot was cleared for an ILS runway 09 approach and reported over the final approach fix. However, the aircraft crashed at about 0759, before reaching the middle marker, which was 1/2 mile from the approach end of runway 09. Impact was on a ridge about 110 feet below the airport elevation and approximately 100 yards north of the international border. The aircraft was found a short time later by US Border patrol personnel. No preimpact part failure or malfunction was found. The 0800 weather at Tijuana was in part: sky partially obscured, visibility 1/10 mile with fog and haze, wind 210° at 4 knots. About 1 mile north at Brown Field, the weather was in part: sky partially obscured, visibility 3/4 mile with fog and haze, wind 280° at 4 knots. A toxicology check of the pilot's blood showed an alcohol level of 0.7‰. Calculations showed the sun would have been 16 ° above the horizon on a magnetic azimuth of 89.8°. All six occupants were killed.

Aircraft reference details include registration XA-KOA, MSN 340A-0978, year of manufacture 1980.

Geospatial coordinates for this crash are approximately 32.5629°, -116.9878°.