LONDON—Unexpected severe vibrations generated during one-engine inoperative (OEI) flight trials of Bell’s fly-by-wire Model 525 helicopter caused the fatal crash of the first prototype, the NTSB has concluded. The severe vibrations resulted in unintentional control inputs—known as biomechanical...
Subscription Required
This content requires a subscription to one of the Aviation Week Intelligence Network (AWIN) bundles.
Schedule a demo today to find out how you can access this content and similar content related to your area of the global aviation industry.
Already an AWIN subscriber? Login
Did you know? Aviation Week has won top honors multiple times in the Jesse H. Neal National Business Journalism Awards, the business-to-business media equivalent of the Pulitzer Prizes.