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A senior tech in Dallas told me to always check the pinout before you plug in a new LRU, and he was dead on.
I was swapping a comms unit on a King Air last week, in a hurry. The new box looked identical to the old one, so I just plugged it in. The senior guy had said that to me a year ago. Powered it up and got a weird bus error. Turns out the pin assignments for the serial data lines were reversed between the two part numbers. I spent three hours chasing a ghost fault that a two-minute diagram check would have caught. How do you guys force yourself to slow down and verify the simple stuff when you're under pressure?
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torres.grant2mo ago
Honestly that extra checking can waste more time than it saves. Pressure means you gotta trust your gut and move fast. Sometimes you just eat the three hour fix and still come out ahead.
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torres.grant2mo ago
Wait, but that three hour fix is exactly what @blair_martin means by it costing more later. Your gut's gotta include a quick double-check, or you're just betting on luck.
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