On 5 Sep 2017, a BOEING 777 300 was involved in an aviation accident near Tokyo, Japan. No fatalities were reported. Investigators recorded the probable cause as: No probable cause has been determined. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.
Photo: Ryanmac06 at English Wikipedia / Public domain, via Wikimedia Commons
The NTSB has appointed an accredited representative to assist the JTSB in an investigation regarding a Boeing 777-300ER incident.
On September 5, 2017, an incident occurred involving a Boeing 777-300ER, registration JA743J, in Tokyo, Japan.
What happened
Following the event, the Japan Transportation Safety Board (JTSB) notified the NTSB of the incident. Because the engine manufacturer and designer are based in the United States, the NTSB appointed a U.S. Accredited Representative to assist the JTSB investigation in accordance with ICAO Annex 13 provisions.
Probable cause
No probable cause has been determined.
Related events
Same aircraft family
11 Jun 2026 — Boeing 777-3Q8ER (THY Turkish Airlines)
26 Apr 2026 — BOEING 777 236
13 Feb 2026 — BOEING 777 (British Airways)
7 Nov 2025 — BOEING 777 300ER (Kuwait Airways)
10 Oct 2025 — BOEING 777 236 (British Airways Plc)
9 Sep 2025 — BOEING 777-222 (UNITED AIRLINES INC)
27 Jun 2025 — BOEING 777 368ER (Saudi Arabian Airlines)
2 Jun 2025 — BOEING 777 300ER (KLM Royal Dutch Airlines)