How To Safety Wire Airplane Propeller Bolts

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In this video, master IA A.J. shows us the proper way to safety wire propeller bolts.

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I came here because of Adam Savage. Great video, it really demonstrates the concept he was talking about!

bettasplendens

FAA requirement for safety wire must never be overstressed. Safety wire will break under vibrations if twisted too tightly. Safety wire must be pulled TAUT when being twisted, and maintain a light tension when secured. Reference AC 43.13-1B paragraph 7-124(e)

dennypollard

Good tutorial! For 45 years, I’ve been doing safety wiring & this was great. On helicopters there are some tight and unusual places, such as rotor attachment hardware. After a while it becomes muscle memory.

duanepierson

Forty three years ago I was taught how to safety wire. Somehow, I remember the seven turns. Good instructors I imagine 🙂

monkeybarmonkeyman

I learned how to safely wire in the USAF, now I gotta do it in my 1930 Model A Ford. A skill that still comes in handy.

craigdixon

At 2:45 its best to put the wire into the bolt that is coming OVER the twist, meaning the one that if you pull in that direction (towards the bolt) it will tighten the twist. Also, it's best to not have any untwisted wire between the twisted and bolt hole, you've got an 1/8 - 3/16" or so of untwisted wire, that's not good because it leaves only one wire to hold the load not the twist. But other than that, good video. Thanks.

ScoutSniper

Thank you so much! I'm doing this for the first time on some racing disc brakes and the other videos I found weren't talking through the process very well but you did. After your video, I'm doing it sort of right. Thanks!

ryanduffinrocks

I'm wiring my race bike for the first time to pass tech inspection for the upcoming AFM season. Thank you!

Heckenlively

I am glad you added the 7 twists per inch most don't. THANKS

goldwingse

I learned this in the US Air Force as an AGE mechanic 53 years ago. Still comes in handy sometimes.

usaf

I wish I had the room you had. I did the safety on the B 1900, it was a pain in the ass. But vids like this help with techniques. Thanks 4 posting.

TheRealJohnnieBlaze

It seems like you could have started the first wire on the far end of the bolt and come around clockwise so that it's tending to tighten it. The way it's done, the first bolt has wire going pretty much strait radially outward, not tending to tighten or loosen.

cyberjor

I’m currently training for my A&P this really helped me thank you so much🏆🤘🏽💯

lovelyladycarter

Piece of cake like this. Few days ago I have just done overhaul of piston of tanker ship main engine. I was standing inside engine and twisting securing wire by hand and by normal pliers. It was all slippery from oil, awkward positions, no room and it took me about 1.5 hour to make 6 wires. And that was even good time, other guys where much slower. I wish I had tool like this.

brollona