Incident Overview

Date: Saturday 21 January 1967
Aircraft Type: Douglas C-54A-15-DC (DC-4)
Owner/operator: Air Ferry
Registration Number: G-ASOG
Location: near Frankfurt-Main – ÿ Germany
Phase of Flight: Approach
Status: Destroyed, written off
Casualties: Fatalities: 2 / Occupants: 2
Component Affected: C-54 aircraft navigation and control systems.C-54 aircraft navigation and control systems.
Category: Accident
A C-54 aircraft struck trees approximately 2700 meters from the runway during a night-time ILS approach. The accident resulted from an error in setting altimeters, which was compounded by a missing checklist during the final approach check. This resulted in the aircraft flying below critical height, leading to a collision with trees.A C-54 aircraft struck trees approximately 2700 meters from the runway during a night-time ILS approach. The accident resulted from an error in setting altimeters, which was compounded by a missing checklist during the final approach check. This resulted in the aircraft flying below critical height, leading to a collision with trees.

Description

The C-54 struck trees some 2700 m short of the runway while on a night-time ILS approach. PROBABLE CAUSE: “The accident is probably attributable to the fact that the crew did not set the altimeters in the final approach according to the instructions in the operations manual. This error was aggravated by the fact that the final approach check list did not coincide with the altimeter setting procedure. In consequence the crew unintentionally flew below critical height and the aircraft collided with trees when the altimeters were showing approx. 200ft above the critical height.”

Primary Cause

Incorrect altimeter setting during final approach.Incorrect altimeter setting during final approach.

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