Boeing 747-422 N175UA
14 September 1997 · Grand Forks, North Dakota, United States · Serious injuries
Summary
On 14 September 1997 at about 19:24 local time, a Boeing 747-422 registered N175UA, operated by United Airlines, was involved in an accident near Grand Forks, North Dakota, United States. 324 people were on board and one was seriously injured, one had minor injuries. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 19:24
- Classification
- Accident
- Location
- Grand Forks, North Dakota, United States
- Coordinates
- 47.9106, -97.0709
- Aircraft
- Boeing 747-422
- Registration
- N175UA
- Category
- Airplane
- Engines
- 4
- Operator
- United Airlines
- Operating rule
- Part 121: Air Carrier
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- Chicago → Narita
- Aircraft damage
- Not recorded
- Weather
- IMC
- Light
- Day
- NTSB number
- CHI97LA292
People
1 person was seriously injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 324 | 0 | 1 | 1 | 322 |
Probable cause
The flight attendant's seat belt was not secured. A factor was turbulence in the clouds.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
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.
Quoted verbatim from the NTSB record.
Other Boeing 747 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 20 Apr 1997 | Boeing 747-300 | Houston, Texas, United States | - | No injuries | - |
| 22 Mar 1997 | Boeing 747-269B | Manaus, Brazil | - | No injuries | - |
| 6 Aug 1997 | Boeing 747-300 | Nimitz Hill, United States | - | Fatal | 228 |
| 14 May 1997 | Boeing 747-400 | London, United Kingdom | Air Canada | No injuries | - |
| 28 Dec 1997 | Boeing 747-122 | Pacific Ocean | - | Fatal | 1 |
| 12 Apr 1997 | Boeing 747-400 | Anchorage, Alaska, United States | - | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 17 Jul 1997 | Piper PA-28-151 | Fessenden, North Dakota, United States | - | No injuries | - |
| 31 Jul 1997 | Velocity VELOCITY ELITE RG | Langdon, North Dakota, United States | - | No injuries | - |
| 3 Sep 1997 | Schweizer G-164B | Larimore, North Dakota, United States | - | Fatal | 1 |
| 10 Jul 1997 | Boeing 757-223 | Dickinson, North Dakota, United States | - | Minor injuries | - |
| 17 Sep 1997 | Piper PA-32R-300 | Fargo, North Dakota, United States | - | No injuries | - |
| 1 Oct 1997 | Cessna T210N | Fargo, North Dakota, United States | - | No injuries | - |