Incident Overview

Date: Monday 5 March 1984
Aircraft Type: Hindustan Aeronautics Ltd. HAL-748-224 Srs. 2
Owner/operator: Indian Airlines
Registration Number: VT-DUO
Location: Hyderabad-Begumpet Airport (HYD) – ÿ India
Phase of Flight: Take off
Status: Destroyed, written off
Casualties: Fatalities: 0 / Occupants: 3
Component Affected: Aircraft Engine System (specifically, the no. 2 engine)Aircraft Engine System (specifically, the no. 2 engine)
Category: Accident
During a training flight, an aircraft experienced a loss of directional control due to an instructor’s incorrect simulation of a no. 2 engine failure during touchdown. The trainee attempted to rotate the aircraft, but this was unsuccessful. The instructor then attempted to add power to the no. 2 engine, which was immediately auto-feathered. The aircraft subsequently ran off the runway and crashed into an airport boundary wall. The incident was likely caused by an improper simulation of the emergency during a reject take-off exercise.During a training flight, an aircraft experienced a loss of directional control due to an instructor’s incorrect simulation of a no. 2 engine failure during touchdown. The trainee attempted to rotate the aircraft, but this was unsuccessful. The instructor then attempted to add power to the no. 2 engine, which was immediately auto-feathered. The aircraft subsequently ran off the runway and crashed into an airport boundary wall. The incident was likely caused by an improper simulation of the emergency during a reject take-off exercise.

Description

The aircraft swung to the right when the instructor simulated a no. 2 engine failure after touchdown during a training flight. The trainee and instructor were not able to regain directional control. The trainee then tried to rotate the aircraft although no VR speed call had been made. The airplane did not become airborne and the instructor took over control. He tried to add power on the no. 2 engine, but the propeller auto-feathered. The aircraft ran off the runway and crashed into an airport boundary wall. PROBABLE CAUSE: “The instructor adopted wrong procedure for simulating starboard engine failure during reject take-off exercise. The trainee-pilot could not recognise the emergency. He handled the situation incorrectly and rotated the aircraft prematurely disregarding decision speed. The instructor took over the controls without proper call out and he also continued for take-off with one engine inoperative on undulated soft ground disregarding decision speed and the circumstances.”

Primary Cause

Incorrect simulation of a no. 2 engine failure during a reject take-off exercise.Incorrect simulation of a no. 2 engine failure during a reject take-off exercise.

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