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Last updated: 19 February 2018
Statuts:Enquête Officielle
Date:samedi 2 janvier 2010
Type/Sous-type:Silhouette image of generic SW4 model; specific model in this crash may look slightly different
Swearingen SA227-AC Metro III
Immatriculation: N227ML
Numéro de série: AC-472
Année de Fabrication: 1982
Heures de vol:25998
Moteurs: 2 Garrett TPE331-11U
Equipage:victimes: 0 / à bord: 2
Passagers:victimes: 0 / à bord: 1
Total:victimes: 0 / à bord: 3
Dégats de l'appareil: Substantiels
Conséquences: Repaired
Lieu de l'accident:Somerset-Lake Cumberland Regional Airport, KY (SME) (   Etats-Unis d'Amérique)
Phase de vol: A l'atterrissage (LDG)
Nature:Transport de Passagers Nat.
Aéroport de départ:Baltimore/Washington International Thurgood Marshall Airport, MD (BWI/KBWI), Etats-Unis d'Amérique
Aéroport de destination:Somerset-Lake Cumberland Regional Airport, KY (SME/KSME), Etats-Unis d'Amérique
Numéro de vol: 151
A Swearingen SA227AC Metro III, N227ML, ran off the side of runway 23 during landing roll at the Somerset-Lake Cumberland Regional Airport, KY (SME). The airplane sustained substantial damage. The flight was operated by Locair, as flight 151, an on-demand air taxi flight, with an instrument flight rules (IFR) flight plan filed. Visual meteorological conditions (VMC) prevailed at the time of the accident. The flight originated from Baltimore/Washington International Thurgood Marshall Airport (BWI) at 13:20, the same day.
According to the pilot, during landing roll, the nose wheel locked, causing the airplane to veer right. He countered with full left rudder, but was unable to bring the airplane under control. The airplane departed the runway on the north side, crossed the taxiway, and went down a small embankment. The airplane came to rest against the airport’s boundary fence.
Examination of the airplane by a Federal Aviation Administration (FAA) inspector found the airplane substantially damaged with the right wing folded back just outboard of the right wing flap.

Probable Cause:

PROBABLE CAUSE: "Damaged wiring in the nosewheel steering harness, which resulted in a loss of control during landing. Contributing to the accident was the pilots' improper touchdown point."

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 3 years
Accident number: ERA10LA103
Download report: Summary report



photo of Swearingen SA227-AC Metro III N227ML
photo of Swearingen SA227-AC Metro III N227ML
photo of Swearingen SA227-AC Metro III N227ML
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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 Baltimore/Washington International Thurgood Marshall Airport, MD et Somerset-Lake Cumberland Regional Airport, KY est de 729 km (456 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 tel qu'ils sont connus à ce jour.
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