Incident Overview

Date: Tuesday 24 November 1959
Aircraft Type: Lockheed L-1049H Super Constellation
Owner/operator: Trans World Airlines – TWA
Registration Number: N102R
Location: 0,4 km SE of Chicago-Midway Airport, IL (MDW) – ÿ United States of America
Phase of Flight: Approach
Status: Destroyed, written off
Casualties: Fatalities: 3 / Occupants: 3
Component Affected: Aircraft Wing FlapsAircraft Wing Flaps
Investigating Agency: CABCAB
Category: Accident
A Lockheed Constellation, N102R, crashed into a residential area near Chicago-Midway Airport, IL (MDW), resulting in the deaths of all three passengers and fatally injuring eight people. The aircraft, carrying cargo, was proceeding in an elliptical turn around the airport, exhibiting excessive sink rate during the final approach to runway 31, leading to a near-vertical climb and wing flap retraction.A Lockheed Constellation, N102R, crashed into a residential area near Chicago-Midway Airport, IL (MDW), resulting in the deaths of all three passengers and fatally injuring eight people. The aircraft, carrying cargo, was proceeding in an elliptical turn around the airport, exhibiting excessive sink rate during the final approach to runway 31, leading to a near-vertical climb and wing flap retraction.

Description

A Lockheed Constellation, N102R, crashed into a residential area about 400 m southeast of Chicago-Midway Airport, IL (MDW), killing all three persons aboard, demolishing the aircraft, and fatally injuring eight persons on the ground. TWA Flight 595, loaded with cargo, took off on runway 31L of Midway at approximately 0531, bound for Los Angeles, CA (LAX). As the aircraft began a left turn, the crew notified Midway Tower they had received a fire warning on the No. 2 engine and had shut it down. They also informed the tower the flight would return and land. The aircraft proceeded in a continuing left turn around the airport in an elliptical pattern and below the clouds which were based at an altitude of 500 to 600 feet. In the turn to final approach to runway 31 the aircraft banked in excess of 45 degrees during which it developed an excessive rate of sink. When the aircraft reached the tops of the trees its wings were nearly level and its nose was raised in a climbing attitude; however, the descent continued. The wing flaps were being retracted during the last 5 to 10 seconds of the final descent and were found to be symmetrically extended at 24 percent upon impact. PROBABLE CAUSE: “The manoeuvring of the aircraft in a manner that caused it to develop an excessive rate of sink while in the turn to final approach.”

Primary Cause

Excessive sink rate during the final approach to runway 31, combined with the aircraft’s maneuvering in a way that caused it to develop an excessive rate of sink.Excessive sink rate during the final approach to runway 31, combined with the aircraft’s maneuvering in a way that caused it to develop an excessive rate of sink.

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