"faulty machinery" is correct and usable in written English.
You can use it when referring to machinery or equipment that is damaged, malfunctioning or not working correctly or safely. Example: "The factory had to close due to the faulty machinery in the production line."
Down below, deep in the earth, the lives of the miners are at risk due to faulty machinery and decaying pit-props.
Why do we need another?" asked Mr. Kramer, emphasizing that the issue was faulty machinery and laws, not outright vote stealing.
Every day we play in a game for survival, battling against raw nature at its extreme, faulty machinery and social challenges.
Corporate manslaughter and health and safety offences may involve incidents like a pedestrian killed by falling scaffolding, a gas leak caused by an unregistered gas fitter or an employee injured by faulty machinery.
The device gives building occupants accessible displays and energy-saving tools via a web browser, helping them to quickly spot any abnormalities such as spikes in energy use, faulty machinery or surprisingly large energy demand.
At 5am on Black Friday morning, Murphy will be back here hoping his ship – John Lewis's massive Magna Park distribution centre near Milton Keynes – can avoid the icebergs of faulty machinery or broken down vans which could freeze sales on what is expected to be the biggest shopping day of the year.
Already there is the uncomfortable sight of lawyers massing in every swing state to dispute another election whose result may turn on faulty technology.The machinery of America's democracy is creaking.
As Texas Gov. Rick Perry explains, nothing can be done in the face of an "act of God" like a piece of faulty man-made machinery failing to function.
But biology is complicated, and researchers hoping to treat diseases in which our cells' energy-providing machinery is faulty now suggest the opposite may also be true: Depriving cells of oxygen could be a boon to health.
Pancreatic carcinoma cells are extremely resistant to apoptosis induction by chemotherapy suggesting that the apoptosis machinery is faulty.
It is tempting to speculate that DHX34 function in NMD relies on its ability to promote the release of eRF1 and eRF3, preventing translation termination and allowing the NMD machinery to target faulty mRNAs for decay.
