Investigation reveals crew actions also contributed to fatal accident last year

  • Gearbox failure caused fatal Osprey crash off Japan’s coast in November
  • U.S. Air Force resumes flights with restrictions after three-month grounding
  • 40 minutes into the flight, a gear cracked and dispersed metal fragments
  • Crew faced multiple warnings before crashing into water
  • Lawsuit filed against Boeing, Textron, Rolls-Royce over fatal crash in California in 2022
  • New V-280 Valor being developed to address gearbox issues

A catastrophic gearbox failure caused a U.S. Air Force Osprey aircraft to crash off the coast of Japan in November, killing all eight personnel on board. The aircraft had been grounded for three months following the incident. An investigation revealed that the initial problem occurred when a gear cracked 40 minutes into the flight, leading to multiple warnings before ultimately crashing into the water. Despite crew actions contributing to the accident, Boeing and Textron’s joint venture Osprey model has resumed flights with restrictions. A new clutch is being developed for Osprey engines to address long-term gearbox issues.

Factuality Level: 8
Factuality Justification: The article provides accurate and objective information about the causes of the Osprey aircraft crash in Japan, including details from the Air Force’s accident investigation report, as well as background information on the V-22 Osprey model, its design, and the ongoing issues with gearbox. It also mentions the lawsuits against Boeing, Textron, and Rolls-Royce and the congressional scrutiny surrounding the aircraft. The article is not sensationalist or opinionated, and does not include any invalid arguments or logical errors.
Noise Level: 4
Noise Justification: The article provides relevant information about the causes of a U.S. Air Force Osprey aircraft crash in Japan and its impact on the military’s plans for exercises near China. It also mentions the ongoing issues with the gearbox and the lawsuits against Boeing, Textron, and Rolls-Royce. However, it could have provided more analysis or context about the broader implications of the Osprey’s design flaws and the potential consequences for military operations.
Public Companies: Boeing (BA), Textron (TXT), Rolls-Royce (RR)
Key People: Tim Loranger (Senior Partner at Wisner Baum), Lloyd Austin (Defense Secretary)


Financial Relevance: Yes
Financial Markets Impacted: The grounding of the Osprey aircraft is altering the military’s plans for exercises near China and impacting the Pentagon’s budget and operations.
Financial Rating Justification: This article discusses a U.S. Air Force Osprey aircraft crash, its impact on the military’s plans and budget, as well as the ongoing issues with the V-22 Osprey model, which is built by Boeing and Textron’s Bell unit. The grounding of the Osprey aircraft affects the military’s exercises near China and alters their readiness in the Pacific region.
Presence Of Extreme Event: Yes
Nature Of Extreme Event: Major Accident
Impact Rating Of The Extreme Event: Severe
Extreme Rating Justification: The extreme event is a major accident involving the crash of a U.S. Air Force Osprey aircraft off the coast of Japan, resulting in the death of all eight personnel aboard and grounding of the fleet for three months. The accident was caused by a gearbox failure and the crew’s attempts to troubleshoot the issues. The impact rating is severe due to the loss of life and the significant disruption to military operations.

Reported publicly: www.wsj.com