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Watched a guy in Wichita torque a prop bolt without a check, now I keep a paint pen in my shirt pocket
I was helping on a King Air 200 annual at a shop in Wichita three years back and saw a senior guy hit a prop bolt, call it good, and move on to the next one without ever coming back to check it. The next morning a different tech found two bolts under the low end of the spec and had to pull the prop back off, which cost us most of a day. Do you all mark and double check every torque or is running back through them at the end good enough in your book?
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kellyr184d ago
Man that Wichita story is exactly why I dont trust the run it all at the end plan. On a prop you got blade clamps, spinner screws, and the hub bolts all stacked in one torque sequence, so by the time you circle back the first one has already relaxed and you cant tell if it moved or if you just forgot where the wrench clicked. Paint pen every single fastener the second it hits spec, then the walk back is just looking for bare metal instead of re-checking with a wrench. One guy on our crew uses a different color for each pass, blue for the first torque, red for the check, and you can spot a missed bolt from ten feet away. Costs you nothing and it already saved us a prop pull twice this year.
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