Incident Overview
Date: Monday 27 July 1992
Aircraft Type: Vickers 798D Viscount
Owner/operator: Aero Eslava
Registration Number: XA-SCM
Location: 30 km E of Mexico City-Benito Ju rez International Airport (MEX) –
ÿ Mexico
Phase of Flight: Approach
Status: Destroyed, written off
Casualties: Fatalities: 4 / Occupants: 4
Component Affected: Vickers Viscount aircraftVickers Viscount aircraft
Investigating Agency: SCTSCT
Category: Accident
A Vickers Viscount aircraft experienced a near-miss incident during a descent from FL150 to FL120 due to severe turbulence. The pilot, who was not certified for Vection flight, failed to maintain the required altitude set by the control center, resulting in an impact with terrain near the international airport of Mexico City. This resulted in potential loss of control.A Vickers Viscount aircraft experienced a near-miss incident during a descent from FL150 to FL120 due to severe turbulence. The pilot, who was not certified for Vection flight, failed to maintain the required altitude set by the control center, resulting in an impact with terrain near the international airport of Mexico City. This resulted in potential loss of control.
Description
Flew into a mountain (Cerro Xocotlihuipa) at 10130 feet . The aircraft had been cleared to descend from FL150 to FL120 because of severe turbulence at the initial cruising altitude. Weather was bad with rain and poor visibility. The investigation revealed that the first officer was not certified to act as a pilot on the Vickers Viscount. Probable cause: Impact with terrain due to not maintaining the altitude set by the control center – Mexico of 12000 feet, during an instrument approach (IFR), to the international airport of Mexico City.
Primary Cause
Lack of altitude control and failure to maintain altitude set by the control center during an instrument approach.Lack of altitude control and failure to maintain altitude set by the control center during an instrument approach.Share on:
