Had a breakthrough with stubborn altitude encoder readings

I was working on a plane where the altitude encoder kept showing random numbers. I thought about swapping it out but checked the ground wires first. Turns out, the shield wire had come loose at the connector. I just tightened it back up and the readings went back to normal right away. This quick check stopped me from ordering a new part and wasting a whole day. Now I make it a habit to look at grounds before anything else on these jobs. It's a small thing that really helps keep things moving.