Boeing warns of ice problem in 777 engines

A second engine power loss on a Boeing 777, following one that caused an emergency landing in London, resulted in a stronger recommendation from the manufacturer to avoid icing in fuel lines in extremely cold conditions.

The fuel temperature in more than 200 777s with Rolls-Royce Trent 800-series engines should not be allowed to remain at 14 degrees Fahrenheit (minus 10 degrees Celsius) or colder in flight after two hours, one hour less than previously advised, Boeing told customers in a notice issued on January 29.