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Datum:zaterdag 2 maart 2002
Type:Silhouette image of generic B752 model; specific model in this crash may look slightly different
Boeing 757-222
Luchtvaartmaatschappij:United Airlines
Registratie: N589UA
Constructienummer: 28707/773
Aantal vlieguren:17618
Bemanning:slachtoffers: 0 / inzittenden: 6
Passagiers:slachtoffers: 0 / inzittenden: 83
Totaal:slachtoffers: 0 / inzittenden: 89
Schade: Groot
Gevolgen: Repaired
Plaats:Seattle/Tacoma International Airport, WA (SEA) (   Verenigde Staten)
Fase: Geparkeerd (STD)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Seattle/Tacoma International Airport, WA (SEA/KSEA), Verenigde Staten
Vliegveld van aankomst:Chicago-O'Hare International Airport, IL (ORD/KORD), Verenigde Staten
A United Airlines Boeing 757-200, N589UA, was impacted by the boom of a de-icing truck while it was standing in position on the ramp with the engines running. There were no injuries, but the aircraft sustained substantial damage. The scheduled domestic passenger flight was preparing to depart for Chicago-O'Hare International Airport, Illinois.
After completing de-icing procedures on a company Boeing 757-200, the driver of the de-icing truck maneuvered his truck in a manner that caused the de-icing basket boom to impact the trailing edge of the aircraft's left aileron. The boom penetrated the aileron to a depth of almost two feet and damaged its spar. The investigation revealed that while backing out from his position behind the aircraft's left wing, the driver had inadvertently turned his steering wheel in a direction that caused the boom, which is mounted on the back end of the truck, to converge on the trailing edge of the aileron.

Probable Cause:

The failure of the deicing truck driver to insure that the deicing basket boom remained clear of the aircraft structure as he backed away from the position he had been in while performing deicing procedures.

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 93 days (3 months)
Accident number: SEA02LA049
Download report: Summary report
Language: English



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Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Seattle/Tacoma International Airport, WA en Chicago-O'Hare International Airport, IL bedraagt 2742 km (1714 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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