Hit 500 line replaceable units this year without a single callback

I just counted up my LRU swaps for the year and it came out to 500 exactly. That number surprised me because I had to bench test a faulty APU controller on a King Air last week that took three hours to pass. Any of you guys track your swap numbers and callback rates to see where you stack up?

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caseyclark3mo ago

Wait, are you counting a bench test as a callback or just the swap itself? Because if you had to pull and bench test a box that came back as serviceable, that's technically a dead swap on your end. I track both swaps and callbacks separately, and dead swaps hurt the pride more than the official numbers. 500 with zero callbacks is still solid but the APU controller story kinda muddies it up for me.

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benwilliams3mo ago

On the APU side I did almost 400 swaps on the 3412 platform a few years back and had only 2 callbacks that were actually my fault. One was a loose connector I forgot to click in, the other was a bad batch of refurb boxes from our supplier that I caught on a bench test. For me the bench test was always part of the swap process, not a separate thing, because I’d rather spend 15 minutes testing than drive back out later. But I totally get tracking them separate if your shop counts dead swaps against you, that changes the math. The factory controller story is a tough break though, those things can be finicky even when the swap looks clean. I started always checking the controller firmware version before I even touch the install, saved me a few headaches.

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