ASN Wikibase Occurrence # 370302
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| Date: | Thursday 19 January 2006 |
| Time: | 12:15 LT |
| Type: |  Boeing 777-222ER |
| Owner/operator: | United Airlines |
| Registration: | N798UA |
| MSN: | 26928/123 |
| Year of manufacture: | 1998 |
| Total airframe hrs: | 34337 hours |
| Engine model: | Pratt & Whitney 4090 |
| Fatalities: | Fatalities: 0 / Occupants: 184 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Denver International Airport, CO (DEN/KDEN) -
 United States of America
|
| Phase: | Standing |
| Nature: | Passenger - Scheduled |
| Departure airport: | Denver International Airport, CO (DEN/KDEN) |
| Chicago-O'Hare International Airport, IL (ORD/KORD) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The airplane was parked at the remote deicing pad and type 4 deicing fluid was being applied to the right rear quadrant and the right wing of the airplane using a deicing truck with a boom. The truck's boom was raised at the time. The driver maneuvered the vehicle too close to the right wing trailing edge at the aileron resulting in the mid-section of the boom coming in contact with the wing. The boom operator cleared the wing for movement when she was not actually clear. The airplane and truck sustained minor damage. An operational inspection of the truck revealed no anomalies. The routine aviation weather report reported visibility, 1/2 statute miles, light snow, and mist.
Probable Cause: the truck driver's failure to maintain clearance from the airplane and the boom operator's failure to adequately clear the boom from the airplane. Contributing to the accident was the low visibility due to snow and mist.
Accident investigation:
 |
|
Sources:
NTSB DEN06IA034
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-Mar-2024 09:15 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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