# NTSB DCA94RA037: Boeing 747, N637US, Narita, Japan, March 1, 1994

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Foreign investigation
- Date: March 1, 1994
- Place: Narita, Japan
- Highest injury: No injuries
- Status: Led by another country's authority
- NTSB office: Major Investigations Division
- Safety recommendations: Yes
- NTSB case key (mKey): 10988
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA94RA037
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/10988/pdf
- Page: https://openairdocs.org/ntsb/DCA94RA037

## Aircraft

- Registration: [N637US](https://openairdocs.org/deregistered/N637US-2008-09-30), registration cancelled 2008-09-30, S/N 23548, built 1986 (OpenAirDocs)
- Reported make and model: BOEING 747
- Registry model: [Boeing 747-251B](https://openairdocs.org/model/boeing-747-251b) (registry code 1384892) (OpenAirDocs)
- Registry engine: [Pratt & Whitney JT9D series](https://openairdocs.org/engine/pratt-whitney-jt9d-series) (registry code 52054, turbo-fan) (OpenAirDocs)
- Flight: Part 121
- Operator: Northwest Airlines, Inc.
- Registered owner: Northwest Airlines, 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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