Accident
Last updated: 26 October 2014
Statuts:Enquête Officielle
Date:jeudi 18 août 1994
Heure:10:58
Type/Sous-type:Silhouette image of generic DC93 model; specific model in this crash may look slightly different
McDonnell Douglas DC-9-31
Compagnie:ADC Airlines
Immatriculation: 5N-BBE
Numéro de série: 45872/345
Année de Fabrication: 1968
Heures de vol:62484
Moteurs: 2 Pratt & Whitney JT8D-7
Equipage:victimes: 0 / à bord: 11
Passagers:victimes: 0 / à bord: 74
Total:victimes: 0 / à bord: 85
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Monrovia-Sprigg Payne Airport (MLW) (   Libéria) show on map
Élévation des lieux de l'accident: 8 m (26 feet) amsl
Phase de vol: A l'atterrissage (LDG)
Nature:Transport de Passagers Intern.
Aéroport de départ:Freetown-Lungi International Airport (FNA/GFLL), Sierra Leone
Aéroport de destination:Monrovia-Sprigg Payne Airport (MLW/GLMR), Libéria
Numéro de vol: 018
Détails:
ADC flight 018 was a scheduled flight from Banjul, Gambia (BJL) via Freetown, Sierra Leone (FNA) to Monrovia, Liberia (MLW)).
The DC-9 took off from Lungi International Airport at about 12:20 and approached Monrovia at about 12:50. A visual approach was carried out using the GPS as a guide. The aircraft was aligned with the runway centre line at about 8nm out. According to the pilot-in-command, the aircraft broke cloud at about 1000 feet and the Oil Refinery and the fuel dump, were positively identified at 5nm. When the aircraft was about 4nm away from the threshold of runway 23, it had descended to 400ft which was the MDA. The runway was sighted at about 2.5nm, the aircraft crossed the threshold at a slightly high altitude of about 150ft.
A hard touch down was made at about 3000ft from the threshold. The spoilers were said to have deployed automatically and the pilots applied full brakes with reverse thrusts on both engines. The aircraft crossed the runway end at a speed of about 80kts. Due to a sharp depression at the end of the runway, the aircraft entered the seven foot depression, with a great shock before a final stop at 390 feet.
All occupants were successfully evacuated with few minor injuries. The aircraft burnt out due to the lack of fire fighting equipment.


PROBABLE CAUSE: "The probable cause of the accident lies in the decision of the commander to continue to land the aeroplane in a situation that clearly calls for a missed approach.
The contributory factors are the excessive height and speed over the threshold of the runway and, the subsequent high rate of descent to touchdown."

Sources:
» Flight International 31.8 - 6.9.94(18)
» ICAO Adrep 1/95 (#129)
» Scramble 184


Opérations de secours

Min of Transport Liberia issued 4 Safety Recommendations

Show all AD's and Safety Recommendations

Photos

photo of McDonnell Douglas DC-9-31 5N-BBE
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Plan
Ce plan montre l'aéroport de départ ainsi que la supposé destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Freetown-Lungi International Airport et Monrovia-Sprigg Payne Airport est de 371 km (232 miles).

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tels qui sont connus à ce jour.
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DC-9-30

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