# NTSB DCA09WA029: Boeing 747, N676NW, Tokyo, Japan, February 20, 2009

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Foreign investigation
- Date: February 20, 2009, 02:50 local (02:50 UTC)
- Place: Tokyo, Japan
- Coordinates: 35.026766, 139.47436
- Nearby events: https://openairdocs.org/map.md?lat=35.0268&lon=139.4744&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Defining event: [Enroute-descent: Turbulence encounter](https://openairdocs.org/ntsb-events/360)
- Highest injury: Serious injuries
- Injuries: 4 serious, 34 minor, 384 uninjured
- Status: Led by another country's authority
- NTSB office: Major Investigations Division
- Lead agency: Other
- Parties: Boeing, Northwest Airlines, FAA
- NTSB case key (mKey): 73369
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA09WA029
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/73369/pdf
- Page: https://openairdocs.org/ntsb/DCA09WA029

## Sequence of events

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

- [Enroute-descent: Turbulence encounter](https://openairdocs.org/ntsb-events/360) (defining event); cases with it: [Boeing 747-451, 1 case](https://openairdocs.org/ntsb-events/360/sequence.md?model=1384940), [All aircraft, 423 cases](https://openairdocs.org/ntsb-events/360/sequence.md)

## Aircraft

- Registration: [N676NW](https://openairdocs.org/deregistered/N676NW-2025-07-18), registration cancelled 2025-07-18, S/N 33002, built 2002 (OpenAirDocs)
- Reported make and model: BOEING 747 (400)
- Registry model: [Boeing 747-451](https://openairdocs.org/model/boeing-747-451) (registry code 1384940) (OpenAirDocs)
- Registry engine: [Pratt & Whitney PW4000 series](https://openairdocs.org/engine/pratt-whitney-pw4000-series) (registry code 52119, turbo-fan) (OpenAirDocs)
- Category: Airplane
- Damage: No damage
- Flight: Part 121
- Registered owner: Northwest Airlines
- Airworthiness certificate: Standard, Transport
- Airport: NRT, Narita International Airport

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20090220009979A](https://openairdocs.org/incident/20090220009979A), Feb 20, 2009: Boeing 747451, Narita, JA, Minor damage. (-23) On February 20, 2009, at 1150 local time, northwest airlines flight 2, at Boeing 747-400, registration N676NW, encountered severe turbulence about 70KM…

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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