![]() It was then that I started learning that aircraft fuel pumps, whether engine driven or electrically powered, rarely fail.Īs I researched this article, the reliability of aircraft fuel pumps, as compared to other components on our airplanes, was pointed out to me by every mechanic and overhaul technician I spoke with. The problem wasn’t the engine-driven fuel pump it was a cracked fuel line. As I shut down the right engine, the chief mechanic appeared and told me in a loud voice that there was fuel dripping from the left nacelle. I foolishly taxied to the FBO on the right engine, a fire truck following uselessly. On landing rollout, the left engine quit and wouldn’t restart. I assumed that the engine-driven fuel pump had failed. It would run fine with the aux pump on not at all with it off. After leveling off and setting low cruise power, I tried turning off the pumps again, and found that the left engine was the problem. I turned the pumps back on and the engine restarted. A few minutes into the climb, I shut off the aux pumps, one at a time. Some years ago I was taking an IPC and FR in a Piper Aztec. That is a Continental engine-driven fuel pump on a Piper Seneca’s TSIO-360 engine. ![]()
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