One of the most common repairs for an air compressor is when the unloader valve stops working. Fortunately, it's also a ...

The engine's only control was a fuel valve, which was connected to a stick within easy reach of the pilot. Once the engine ... pushed the plane through the air. Made of two layers of spruce ...

Flight 2059, operated by Horizon Air ... that the off-duty pilot tried to deploy the plane’s fire suppression system, which includes handles that, when pulled, close valves in the wings ...