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| Date: | Sunday 14 September 1997 |
| Time: | 14:24 LT |
| Type: |  Boeing 747-422 |
| Owner/operator: | United Airlines |
| Registration: | N175UA |
| MSN: | 24382/806 |
| Year of manufacture: | 1990 |
| Total airframe hrs: | 30275 hours |
| Engine model: | P&W 4056 L |
| Fatalities: | Fatalities: 0 / Occupants: 324 |
| Other fatalities: | 0 |
| Aircraft damage: | None |
| Category: | Accident |
| Location: | Grand Forks, ND -
 United States of America
|
| Phase: | En route |
| Nature: | Passenger - Scheduled |
| Departure airport: | Chicago, IL (KORD) |
| Narita, OF (RJAA) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Prior to departure, the flight crew received a weather briefing which included a SIGMET for the chance of severe turbulence along the proposed route. Prior to entering IMC conditions, the flight crew turned on the 'Fasten Seat Belt' signs, and gave verbal instructions to passengers to return to their seats and fasten their seat belts. The pilot-in-command diverted around precipitation which he observed on radar; however, when in the close proximity to the precipitation, the airplane encountered what the crew described as three to four seconds of 'moderate' chop. An unseated passenger sustained minor injuries, and a flight attendant received serious injuries.
Probable Cause: The flight attendant's seat belt was not secured. A factor was turbulence in the clouds.
Accident investigation:
 |
|
Sources:
NTSB CHI97LA292
History of this aircraft
Other occurrences involving this aircraft
| 1 April 2003 | N175UA | United Airlines | 0 | Chicago, IL | |
non |
| 14 May 2006 | N175UA | United Airlines | 0 | Sydney-Kingsford Smith International Airport, NSW (SYD/YSSY) |  |
min |
| Bird strike | ||||||
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 12-Mar-2024 09:56 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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