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Last updated: 27 September 2020
Statuts:Enquête Officielle
Date:mardi 21 mai 2002
Type/Sous-type:Silhouette image of generic L410 model; specific model in this crash may look slightly different
Let L-410UVP
Compagnie:Sky Executive Airlines
Immatriculation: 9Q-CGX
Numéro de série: 851402
Année de Fabrication: 1985
Heures de vol:8086
Moteurs: 2 Walter M-601D
Equipage:victimes: 5 / à bord: 5
Passagers:victimes: 0 / à bord: 0
Total:victimes: 5 / à bord: 5
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:22 km (13.8 milles) SSE of Calabar Airport (CBQ) (   Nigéria)
Phase de vol: En approche (APR)
Aéroport de départ:Port Harcourt Airport (PHC/DNPO), Nigéria
Aéroport de destination:Calabar Airport (CBQ/DNCA), Nigéria
Numéro de vol: 401
Let 410 9Q-CEX was being flown by a Congolese crew on behalf of the Nigerian airline company Sky Executive Airlines. The aircraft departed Abuja around 16:30 for a passenger flight to Port Harcourt. At Port Harcourt all passengers disembarked. The aircraft then took off for a ferry flight to Calabar. On approach the pilot declared an emergency due to an electrical failure. At 65 km out the crew commenced a descent to 2500 feet. The descent was continued past this altitude until the Let crashed in a swamp. During the investigation into the cause of the accident it was found out that the aircraft was non-compliant with the maintenance requirements, and proper documentation of the aircraft and crew members. Also, the plane had exceeded the prescribed annual inspection time by 248 hours, and the engines were not maintained in accordance with the standard procedure. Contrary to NCAA regulations a Flight Data Recorder (FDR), nor a Cockpit Voice Recorder (CVR) were installed.

Probable Cause:

PROBABLE CAUSE: "The premature departure of the plane from the normal minimum safe altitude of 2500 ft without air traffic controller's clearance until it flew into the terrain. Other contributing factors are the emergence of electrical problem on the aircraft on the commencement of its approach which might have distracted the attention of the pilot from having undistorted focus on the instruments, and unfavourable weather conditions of low cloud base and
thunderstorm which impaired visibility at the critical time of descent."

» Daily Trust
» Reuters
» This Day
» Civil aviation accident report no. FMA/AIPB/383

Opérations de secours

AIB Nigeria issued 4 Safety Recommendations

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photo of Let-410UVP-9Q-CGX
accident date: 21-05-2002
type: Let 410UVP
registration: 9Q-CGX

Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Port Harcourt Airport et Calabar Airport est de 154 km (96 miles).
Accident location: Approximate; accuracy within a few kilometers.

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 tel qu'ils sont connus à ce jour.
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