Lauren McGavran

We recently replaced the engine in our Cessna 172 after an “Inspection and Repair as Necessary.” A few test and breakin flights later, upon starting the engine, the tachometer did not register. Our mechanic thinks it is the cable. The mechanic is unavailable for a couple of weeks, so we are wanting to get the cable and have it ready to go when the mechanic returns. I am running into more questions than answers! First, it seems that those cables are sold by length, and I cannot find them listed by aircraft make and model. Well, OK, we can probably deal with that (though we aren’t going to remove the cable so that we can get a truly accurate measurement.) Next, most of the cables are not “FAA PMA approved.” How does that work? I thought that just about everything on a non-experimental airplane had to have FAA approval. Thanks for any enlightenment on that issue.

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We recently replaced the engine in our Cessna 172 after an “Inspection and Repair as Necessary.” A few test and breakin flights later, upon starting the engine, the tachometer did not register. Our mechanic thinks it is the cable. The mechanic is unavailable for a couple of weeks, so we are wanting to get the cable and have it ready to go when the mechanic returns. I am running into more questions than answers! First, it seems that those cables are sold by length, and I cannot ... more

We recently replaced the engine in our Cessna 172 after an “Inspection and Repair as Necessary.” A few test and breakin flights later, upon starting the engine, the tachometer did not register. Our mechanic thinks it is the cable. The mechanic is unavailable for a couple of weeks, so we are wanting to get the cable and have it ready to go when the mechanic returns. I am running into more questions than answers! First, it seems that those cables are sold by length, and I cannot find them listed by aircraft make and model. Well, OK, we can probably deal with that (though we aren’t going to remove the cable so that we can get a truly accurate measurement.) Next, most of the cables are not “FAA PMA approved.” How does that work? I thought that just about everything on a non-experimental airplane had to have FAA approval. Thanks for any enlightenment on that issue.

Show Less

We recently replaced the engine in our Cessna 172 after an “Inspection and Repair as Necessary.” A few test and breakin flights later, upon starting the engine, the tachometer did not register. Our mechanic thinks it is the cable. The mechanic is unavailable for a couple of weeks, so we are wanting to get the cable and have it ready to go when the mechanic returns. I am running into more questions than answers! First, it seems that those cables are sold by length, and I cannot ... more

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