Incident Overview
Date: Monday 11 May 1998
Aircraft Type: Antonov An-12B
Owner/operator: Tyumenaviatrans
Registration Number: RA-12973
Location: Luanda-4 de Fevereiro Airport (LAD) –
ÿ Angola
Phase of Flight: Landing
Status: Destroyed, written off
Casualties: Fatalities: 0 / Occupants: 7
Component Affected: Aircraft Main UndercarriageAircraft Main Undercarriage
Category: Accident
An Antonov aircraft carrying 10,000 kg of cargo bound for Luanda, DRC, descended to 1850 meters from the runway at Luanda. The crew increased the descent rate to 6.6 m/s, causing the aircraft to descend below the runway by 1450 meters. After leveling, the aircraft reached a height of 12 meters, 290 meters from the runway threshold. A wind shift caused a speed drop to 248 km/h, resulting in a hard landing short of the runway. The main undercarriage was sheared off, nearly completely.An Antonov aircraft carrying 10,000 kg of cargo bound for Luanda, DRC, descended to 1850 meters from the runway at Luanda. The crew increased the descent rate to 6.6 m/s, causing the aircraft to descend below the runway by 1450 meters. After leveling, the aircraft reached a height of 12 meters, 290 meters from the runway threshold. A wind shift caused a speed drop to 248 km/h, resulting in a hard landing short of the runway. The main undercarriage was sheared off, nearly completely.
Description
The Antonov departed Kabinda, D.R. Congo, carrying 10.000 kg of cargo bound for Luanda. At a distance of 1850 m from the runway at Luanda, the Antonov was 13 m above the glideslope. The crew increased the vertical rate of descent to 6,6 m/s until it descended below the glidesope 1450 m from the threshold. The aircraft leveled out at an height of 12 m, 290 m from the runway threshold. A brief wind shift at that point led to a drop in the indicated speed from 260 km/h to 248 km/h. The aircraft touched down very hard short of the runway. Colliding with the raised lip of the runway, nearly the entire main undercarriage was sheared off.
Primary Cause
Loss of control due to excessive descent rate and wind shift.Loss of control due to excessive descent rate and wind shift.Share on:
