These have gradually become more unreliable, removed or rotated after a decade of operation.

By 2004, many M249s had been in service for almost twenty years and were becoming increasingly unreliable.

She does still recognise her family but even that is becoming unreliable.

By the late 1970s they were becoming unreliable with ageing equipment.

This has nothing to do with Germans having become unreliable.

"Unless you tell the surgeon to slip because I've suddenly become highly unreliable."

The new cars are intended to replace decades-old models, some of which have become unreliable.

It was removed after the 2006 season due to the cars and track becoming unreliable.

It doesn't take an expert to recognize that air travel is becoming increasingly unpleasant and unreliable.

Too much time remained, and the Oregon special teams had become frighteningly unreliable.