# NTSB DCA12WA109: Boeing 777-222, N224UA, Narita, Japan, July 5, 2012

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Foreign investigation
- Date: July 5, 2012, 05:22 local (05:22 UTC)
- Place: Narita, Japan
- Coordinates: 35.769476, 140.382155
- Nearby events: https://openairdocs.org/map.md?lat=35.7695&lon=140.3822&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Defining event: [Enroute: Turbulence encounter](https://openairdocs.org/ntsb-events/360)
- Highest injury: Serious injuries
- Injuries: 1 serious, 3 minor, 252 uninjured
- Status: Led by another country's authority
- NTSB office: Major Investigations Division
- Lead agency: Other
- NTSB case key (mKey): 84305
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA12WA109
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/84305/pdf
- Page: https://openairdocs.org/ntsb/DCA12WA109

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Enroute: Turbulence encounter](https://openairdocs.org/ntsb-events/360) (defining event); cases with it: [Boeing 777-222, 6 cases](https://openairdocs.org/ntsb-events/360/sequence.md?model=1385219), [All aircraft, 423 cases](https://openairdocs.org/ntsb-events/360/sequence.md)

## Aircraft

- Registration: [N224UA](https://openairdocs.org/aircraft/N224UA), registered now, S/N 30225, built 2001 (OpenAirDocs)
- Reported make and model: BOEING 777-222
- Registry model: [Boeing 777-222](https://openairdocs.org/model/boeing-777-222) (registry code 1385219) (OpenAirDocs)
- Registry engine: [Pratt & Whitney PW4000 series](https://openairdocs.org/engine/pratt-whitney-pw4000-series) (registry code 52119, turbo-fan) (OpenAirDocs)
- Category: Airplane
- Serial number: 30225
- Damage: No damage
- Flight: Part 121
- Operator: United Air Lines Inc
- Registered owner: United Air Lines Inc

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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