On 22 Jan 2020, a Boeing 777 300ER operated by United Airlines was involved in an aviation accident near Sydney, Australia. No fatalities were reported. Investigators recorded the probable cause as: not provided. This summary draws on records from NTSB; 17 related events involving the same aircraft type or operator are linked below.
Photo: Ryanmac06 at English Wikipedia / Public domain, via Wikimedia Commons
The NTSB is assisting the Australian Transport Safety Bureau in an investigation into a serious incident involving a Boeing 777 in Sydney, Australia.
On January 22, 2020, a serious incident occurred involving a Boeing 777, registration N2333U, operated by United Airlines. The event took place in Sydney, Australia.
Under the provisions of ICAO Annex 13, the NTSB has appointed a U.S. Accredited Representative to support the investigation being conducted by the Australian Transport Safety Bureau (ATSB). There were no injuries reported in relation to this incident. All official investigative information is to be released by the ATSB.
Probable cause
not provided
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)