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Just walked through the maintenance hangar at DFW and saw something that bugged me
I was doing a quick tour of the American Airlines hangar in Dallas last Tuesday. Every single tool box was crammed with random rags and half-empty cans. But what got me was the torque wrenches just sitting on a bench not in their cases. Nobody was even watching them. For a place that handles 737s all day that's just asking for a calibration issue down the line. Has anyone else noticed hangars getting sloppy with tool control lately?
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williams905mo ago
That line about the torque wrenches not being in their cases hit hard. I worked in a machine shop for a few years and we had a strict rule that any torque wrench left out for more than five minutes got pulled from service and rechecked. The issue I don't see anyone talking about is how calibration drifts faster when tools are just sitting on a hard bench instead of their padded cases. The vibration from walking by or setting something down nearby can throw off the internal mechanism way more than people think. If those wrenches are getting knocked around even a little, they could be reading ten percent off by the time they get used on a control cable or landing gear bolt. Isn't that kind of slop the exact thing that leads to a preventable inspection down the road?
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harper_wright5mo ago
Torque wrench left out for more than five minutes" is wild, but you're right about the vibration thing. Hard surfaces just send those micro-jolts straight into the mechanism, no padding to soak it up. Ten percent off on a landing gear bolt is basically begging for a headache down the line.
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vera_lewis3mo ago
Is it really that bad though? I mean, I get that calibration matters, but ten percent off just from sitting on a bench sounds like a stretch to me, @williams90. Feels like one of those things that sounds scary on paper but doesn't actually happen that often in practice.
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