# NTSB DCA12WA108: Boeing 747-400, Tokyo, Japan, July 5, 2012

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Foreign investigation
- Date: July 5, 2012, 11:28 local (11:28 UTC)
- Place: Tokyo, Japan
- 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, 193 uninjured
- Status: Led by another country's authority
- NTSB office: Major Investigations Division
- Lead agency: Other
- NTSB case key (mKey): 84264
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA12WA108
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/84264/pdf
- Page: https://openairdocs.org/ntsb/DCA12WA108

## 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: [All aircraft, 423 cases](https://openairdocs.org/ntsb-events/360/sequence.md)

## Factual narrative

On July 5, 2012, a Boeing 747-400, HL7473, operated by Korean Air Lines Co., Ltd., as flight KAL2711, departed from the Gimpo International Airport (GMP), Seoul, South Korea, en route to the Tokyo International Airport (HND), Tokyo, Japan. Approximately 100 miles north-northwest of HND, the airplane encountered turbulence which resulted in a serious injury to a passenger. The airplane landed at HND without further incident. The event is being investigated by the Japan Transport Safety Board (JTSB). The NTSB has appointed a U.S. Accredited Representative as the State of Manufacture under the provisions of ICAO Annex 13. All inquiries should be directed to the JTSB at the following: Japan Transport Safety Board 2-1-2, Kasumigaseki, Chiyoda-Ku Tokyo, 100-8918, Japan phone:+81-3-5253-8814

## Aircraft

- Registration: HL7473 (not matched to a registry record)
- Reported make and model: BOEING 747-400
- Category: Airplane
- Damage: No damage
- Operator: Korean Air Lines Co.,

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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