Incident Overview

Date: Monday 11 July 1983
Aircraft Type: Boeing 737-2V2
Owner/operator: TAME Ecuador
Registration Number: HC-BIG
Location: 1,5 km from Cuenca – ÿ Ecuador
Phase of Flight: Approach
Status: Destroyed, written off
Casualties: Fatalities: 119 / Occupants: 119
Component Affected: Aircraft (Boeing 737-200)Aircraft (Boeing 737-200)
Category: Accident
A Boeing 737-200 aircraft struck a hillside near Cuenca Airport in Ecuador, resulting in the deaths of all 119 passengers and crew. The aircraft was approaching the airport in clear weather with ground fog, and the pilots initiated a direct visual approach. Despite receiving warnings about terrain, the pilots continued the approach, descending rapidly to a low altitude, ultimately impacting terrain at 8548 feet.A Boeing 737-200 aircraft struck a hillside near Cuenca Airport in Ecuador, resulting in the deaths of all 119 passengers and crew. The aircraft was approaching the airport in clear weather with ground fog, and the pilots initiated a direct visual approach. Despite receiving warnings about terrain, the pilots continued the approach, descending rapidly to a low altitude, ultimately impacting terrain at 8548 feet.

Description

TAME Ecuador flight 173, a Boeing 737-200, struck a hillside and crashed near Cuenca Airport (CUE), Ecuador. All 119 on board were killed. The aircraft was approaching Cuenca in clear weather with patches of ground fog near the airport. The controller cleared the flight for an instrument approach to runway 23. The flight crew, however, decided to perform a direct visual approach. After crossing the El Tablon VOR they had the runway in sight and continued the approach. From then on the GPWS began to sound: ‘Terrain, Terrain, Pull up!’. The pilots did not respond to these warnings and continued the approach. Meanwhile, the first officer suggested to select flaps to 40 degrees and descend to 8700 feet, which was below the minimum altitude of 9500 feet. The aircraft descended rapidly at about 1500 ft/min. During the descent the aircraft entered clouds. The flight crew likely focused on obtaining visual contact with the ground, without paying attention to the altitude. The aircraft descended until it impacted terrain at 8548 feet. when it struck a ridge with its tail and crashed into a hilly area about 1 mile short of the runway.

Primary Cause

Pilot error ? failure to heed terrain warnings and maintain appropriate altitude.Pilot error ? failure to heed terrain warnings and maintain appropriate altitude.

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