# NTSB DCA17WA166: Boeing 747-87UF, N852GT, Narita, Japan, July 15, 2017

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Foreign investigation
- Date: July 15, 2017
- Place: Narita, Japan
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Defining event: [Takeoff: Runway excursion](https://openairdocs.org/ntsb-events/300)
- Highest injury: No injuries
- Status: Led by another country's authority
- NTSB office: Major Investigations Division
- Lead agency: Other
- NTSB case key (mKey): 95776
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA17WA166
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/95776/pdf
- Page: https://openairdocs.org/ntsb/DCA17WA166

## Sequence of events

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

- [Takeoff: Runway excursion](https://openairdocs.org/ntsb-events/300) (defining event); cases with it: [Boeing 747-87UF, 1 case](https://openairdocs.org/ntsb-events/300/sequence.md?model=13848GA), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md)

## Factual narrative

The Japan Transport Safety Board (JTSB) has notified the NTSB of a serious incident involving a BOEING 747-87UF airplane that occurred on July 15, 2017. The NTSB has appointed a U.S. Accredited Representative to assist the government of Japan's investigation under the provisions of ICAO Annex 13.All investigative information will be released by the JTSB.

## Aircraft

- Registration: [N852GT](https://openairdocs.org/aircraft/N852GT), registered now, S/N 37571, built 2012 (OpenAirDocs)
- Reported make and model: BOEING 747-87UF (87UF)
- Registry model: [Boeing 747-87UF](https://openairdocs.org/model/boeing-747-87uf) (registry code 13848GA) (OpenAirDocs)
- Registry engine: [GE GENX-2B67B](https://openairdocs.org/engine/ge-genx-2b67b) (registry code 30165, turbo-fan) (OpenAirDocs)
- Category: Airplane
- Serial number: 37571
- Engines: GE GENX-2B67B; GE GENX-2B67B; GE GENX-2B67B; GE GENX-2B67B
- Damage: Minor damage
- Flight: Part 121
- Operator: Atlas Air
- Registered owner: Atlas Air Inc
- Airworthiness certificate: Standard, Transport

## Other investigations on N852GT (1)

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.

- [NTSB DCA26WA132](https://openairdocs.org/ntsb/DCA26WA132), Feb 8, 2026: Boeing 747 (N852GT), Sao Paulo, Brazil, incident, no damage

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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