# NTSB DCA21WA143: Boeing 767, Yesan, South Korea, May 28, 2021

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Class 5 · Foreign
- Date: May 28, 2021, 08:08 local (08:08 UTC)
- Place: Yesan, South Korea
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Defining event: [Initial climb: Turbulence encounter](https://openairdocs.org/ntsb-events/360)
- Highest injury: Serious injuries
- Injuries: 1 serious, 237 uninjured
- Status: Led by another country's authority
- Investigation class: Class 5 - No publish
- NTSB office: Major Investigations Division
- Lead agency: Other
- Parties: Korean ARAIB
- NTSB case key (mKey): 103206
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA21WA143
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/103206/pdf
- Page: https://openairdocs.org/ntsb/DCA21WA143

## Sequence of events

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

- [Initial climb: 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)

## Aircraft

- Registration: HL7528 (not matched to a registry record)
- Reported make and model: BOEING 767 (300)
- Category: Airplane
- Serial number: 29129
- Damage: No damage
- Flight: Non-U.S., commercial
- Operator: Asiana Airlines Co LTD
- Registered owner: Asiana Airlines Co LTD
- Airworthiness certificate: Standard, Transport
- Departed: Gimpo International Airport
- Destination: Jeju International Airport

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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