# NTSB ENG21WA007: Boeing 777, Naha, Japan, December 4, 2020

- Type: NTSB incident investigation
- Classification: Incident · Class 4 · Foreign
- Date: December 4, 2020
- Place: Naha, Japan
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Defining event: [Enroute-climb to cruise: Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340)
- Status: Led by another country's authority
- Investigation class: Class 4 - Basic report with no Prelim publish
- NTSB office: Aviation Engineering Division
- Lead agency: Other
- NTSB case key (mKey): 102377
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ENG21WA007
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/102377/pdf
- Page: https://openairdocs.org/ntsb/ENG21WA007

## Sequence of events

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

- [Enroute-climb to cruise: Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340) (defining event)

## Aircraft

- Registration: JA8978 (not matched to a registry record)
- Reported make and model: BOEING 777
- Category: Airplane
- Serial number: 27637
- Damage: Minor damage
- Flight: Non-U.S., commercial
- Operator: Japan Airlines
- Registered owner: Japan Airlines

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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