Crash-aerien 28 SEP 2016 d'un Beechcraft 1900D ZS-PZE - Beni Airport (BNC)
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Statuts:Accident investigation report completed and information captured
Date:mercredi 28 septembre 2016
Heure:12:30
Type/Sous-type:Silhouette image of generic B190 model; specific model in this crash may look slightly different
Beechcraft 1900D
Operated by:King Air Charter
On behalf of:United Nations - UN
Immatriculation: ZS-PZE
Numéro de série: UE-32
Année de Fabrication: 1992
Heures de vol:21498
Cycles:30564
Moteurs: 2 Pratt & Whitney Canada PT6A-67D
Equipage:victimes: 0 / à bord: 2
Passagers:victimes: 0 / à bord: 8
Total:victimes: 0 / à bord: 10
Dégats de l'appareil: Substantiels
Lieu de l'accident:Beni Airport (BNC) (   République dém. du Cono)
Phase de vol: A l'atterrissage (LDG)
Nature:Charter National
Aéroport de départ:Goma Airport (GOM/FZNA), République dém. du Cono
Aéroport de destination:Beni Airport (BNC/FZNP), République dém. du Cono
Numéro de vol:UNO830
Détails:
The Beech 1900D operated on a flight for the United Nations Stabilization Mission in the Congo (MONUSCO) and took off from Goma International Airport (FZNA) at 11:40 hours, bound for Beni (FZNP). The planned flight time was 40 minutes. At the point of descent, the aircraft had terminated communication with ATS Goma and established contact with the Beni control tower. The flight crew had received information about the estimated weather conditions at the aerodrome. Since the control tower could not provide the atmospheric pressure, the crew contacted the MONUSCO operations department for that purpose. The MONUSCO operations department transmitted and confirmed the pressure of 1017 hpa.
The flight was uneventful until the descent phase. The PIC had briefed his co-pilot, explaining to him how he was going to proceed to begin the approach at Beni. Crossing 10,000 feet in descent, the PIC would position the aircraft downwind for runway 11. The PIC asked the co-pilot to extend the landing gear, but the landing gear did not extend and there was no indication of locking.
The flight crew noted a tripped circuit breaker and reset it, but it tripped again. After reviewing the procedure, the crew lowered the landing gear using the manual extension system, extended the landing gear, and the three lock indicator lights illuminated. On touchdown at about 450 metres from the runway threshold, an alarm sounded and the right landing gear retracted into the nacelle. The right wing collapsed, and the right engine propeller began to graze the ground.
The flight crew lost control of the aircraft as it laterally departed the runway and headed toward the public tarmac. During this skid, the accident aircraft had crossed the water drainage channel.
After this crossing, the left landing gear had become bogged down and sunk into the ground. With the aircraft's speed and inertia, the entire weight pivoted on this muddy landing gear, causing it to fail.
The aircraft sustained substantial damage. The passengers were evacuated by the co-pilot through the main door and were taken care of by MONUSCO medical personnel.

Probable Cause:

Causes
Facteur technique.
L’ovalisation suite à l’usure du point de jonction de l’arm (270) avec l’actuator (15) au fil de temps a fini par la cassure du point et liberé l’actuator de tout le système du train.
La surchauffe de time/delay relay a occasionné le declenchement du disjoncteur.
Facteur contributif : Pièce arm(270).
L’ovalisation créée par le boulot(65) au point de jonction de l’arm(270) à l’actuator(15) a fini par s’amincir et se casser libérant ainsi l’actuator.

Accident investigation:

cover
Investigating agency: BPEA DR Congo
Status: Investigation completed
Duration: 275 days (9 months)
Accident number: BPEA/ACCID/06/2016
Download report: Final report

Sources:
» politico.cd
» radiookapi.net


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Plan
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 Goma Airport et Beni Airport est de 250 km (156 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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