Crash-aerien 09 SEP 2018 d'un Let L-410UVP UR-TWO - Yirol Airstrip
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Statuts:Accident investigation report completed and information captured
Date:dimanche 9 septembre 2018
Heure:08:45
Type/Sous-type:Silhouette image of generic L410 model; specific model in this crash may look slightly different
Let L-410UVP
Opérant pour:South West Aviation
Loué à :Slav-Air
Immatriculation: UR-TWO
Numéro de série: 841328
Année de Fabrication: 1984
Moteurs: 2 Walter M-601B
Equipage:victimes: 2 / à bord: 2
Passagers:victimes: 18 / à bord: 21
Total:victimes: 20 / à bord: 23
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:1,6 km (1 milles) W of Yirol Airstrip (   Soudan du Sud)
Phase de vol: En approche (APR)
Nature:Charter National
Aéroport de départ:Juba Airport (JUB/HSSJ), Soudan du Sud
Aéroport de destination:Yirol Airstrip (HSYL), Soudan du Sud
Détails:
A Let L-410 aircraft crashed into Lake Yirol, South Sudan, close to the destination airport. Twenty of the 23 occupants suffered fatal injuries and the aircraft was destroyed.
The aircraft was owned by Slav-Air Company, Ukraine as of May, 2018. It had been overhauled in 2016-2017 after having been stored for eight years. The aircraft was operated by South West Aviation. On the day of the accident it was chartered by Baby Air Tours and Travel for a flight from Juba to Yirol.
The flight departed Juba, South Sudan, at 08:00 hours without having obtained a weather briefing. The visibility at Yirol worsened and thick was present in the area. The aircraft overflew the airstrip and started an approach while overhead Lake Yirol. Descent was continued until the aircraft impacted the surface of the lake.

Probable Cause:

The committee for the investigations of Slav air let410 aircraft registration UR-TWO has finally concluded that the cause of the accident at Yirol Eastern Lake State Republic of South Sudan was caused by a combination of the following factors:
1. Severely bad weather in the morning of the accident.( Not making a decision to return back to Juba or diverting to the nearest airportRumbek).
2. Pilot incompetency and error in setting the altimeter for Yirol airstrip before the crash. (Causing variations in altitude- flying at false altitude actually below the actual flight level).
3. Replacement of a faulty propeller in Pibor and not informing the safety department of the changes and not being given the release document for operations.

Accident investigation:

cover
Investigating agency: MoT South Sudan
Status: Investigation completed
Duration: 1 year and 1 months
Accident number: final report
Download report: Final report

Sources:
» Radio Miraya
» Yirol plane crash caused by bad weather & negligence -Report (eyeradio.org, 9-5-2019)


Photos

photo of Let-L-410-
accident date: 09-09-2018
type: Let L-410
registration:
 

Video, social media

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 Juba Airport et Yirol Airstrip est de 222 km (139 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.
languages: languages

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Let L-410

  • 1138+ built
  • 125ème loss
  • 61ème accident fatal
  • le accident 3ème le plus grave (à ce moment là)
  • le accident 3ème le plus grave (en ce moment)
» safety profile

 Soudan du Sud
  • le accident 5ème le plus grave (à ce moment là)
  • le accident 5ème le plus grave (en ce moment)
» safety profile

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