E Thread used for seal thread

[Hooknswoop 19]

I just tried to open a reserve and my finger still hurts from trying to break the seal, which I wasn't able to. I maxed out my spring scale at 30 pounds without breaking the seal.

Derek

[nicknitro71 0]

Was this just a test?

If it really happened did you call the rigger who did it. If there is one there could be others.

Memento Audere Semper

903

[Hooknswoop 19]

Not a test, this rig was jumped like this. I am working to find the rigger and contact them.

Derek

[bob.dino 1]

What is E thread? Obviously, apart from tough to break.

[nicknitro71 0]

E thread (69) is what it's used to sew canopies and some parts of the container. It has a tensile strenght of 8.5 lbs while the safety thread that we use to seal the pack has a tensile strenght of 4.75 lbs, a big difference.

Memento Audere Semper

903

[Hooknswoop 19]

At least 8.5 pounds, plus it is doubled. See the pic attached to the first post.

Derek

[nicknitro71 0]

Derek, from the pic I can't tell. Was is doubled it around the pin? If that is the case this is some serious stuff. We are not even supposed to double the regular safety thread!

Were you able to pull the handle at some point?

Do you think the average jumper was able to pull the handle?

Memento Audere Semper

903

[linestretch 0]

do you have a clearer pic? You can block out the seal#.

Can you say what state is was packed in....physically, not mentally.

my pics & stuff!

[Hooknswoop 19]

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Derek, from the pic I can't tell. Was is doubled it around the pin?

Yes.

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Were you able to pull the handle at some point?

Yes, but it was a hard pull.

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Do you think the average jumper was able to pull the handle?

Probably. What finally allowed it to release was the thread slipping through the seal, the thread didn't break.

Derek

[Hooknswoop 19]

CO. How's this one?

Derek

[nicknitro71 0]

Thanks Derek.

At lest they did not use size 5 thread

Let us know when you are able to contact the rigger who did this.

Memento Audere Semper

903

[Squeak 17]

What is the closing loop made of in that pic it looks like it's an almost see through plastic?

You are not now, nor will you ever be, good enough to not die in this sport (Sparky)
My Life ROCKS!
How's yours doing?

[linestretch 0]

looks like cypres line to me

my pics & stuff!

[skycat 0]

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What is the closing loop made of in that pic it looks like it's an almost see through plastic?

It was a normal cypress loop, it's just the glare from the flash that is making it look odd.

Fly it like you stole it!

[councilman24 37]

Derek,

PIA Technical Standard 116, available on the web site is provided to help document incidents. www.pia.com Documents, technical standards.

PIA rigging committee has taken on the task of talking with riggers over issues when the rigger who found it didn't want to.

Let me know if I can help.

PIA Rigging Committee Chairman

I'm old for my age.
Terry Urban
D-8631
FAA DPRE

[Gravitymaster 0]

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CO. How's this one?

Derek

It looks as though the grommet is scratched up pretty bad. Is it just the photo?

[Hooknswoop 19]

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Let me know if I can help.

Thanks, I'll keep you posted.

Derek

[Hooknswoop 19]

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It looks as though the grommet is scratched up pretty bad. Is it just the photo?

The grommet is OK, the flash from the camera makes it look worse than it is.

Derek

[rushmc 23]

Teryy, that is great to know. Thanks

"America will never be destroyed from the outside,
if we falter and lose our freedoms,
it will be because we destroyed ourselves."
Abraham Lincoln

[skybytch 273]

A good reason to break seal thread from the spool by hand instead of with scissors, eh?

[riggerrob 643]

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Thanks Derek.

At lest they did not use size 5 thread

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

5 thread is a European specification similar to American MIL-SPEC/PIA-SPEC E-Thread (aka commercial size 69 bonded nylon thread) with a breaking strength of 8.5 pounds.

Perhaps you were referring to 5 Cord, which has a 40 pound breaking strength and is used to sew the important joints in harnesses.

• Quote

[Treejumps 0]

Was the pin always seated that shallow, or was that after tugging on it for a while?

[darkwing 5]

I think it is EXTREMELY URGENT to contact the rigger, in case E-thread has been used on other rigs.

-- Jeff
My Skydiving History

[Hooknswoop 19]

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Was the pin always seated that shallow, or was that after tugging on it for a while?

I took the pic after trying to break the seal by hand and then putting 30+ pounds of pull force on the handle. The pin moved until the seal stopped it. I took the pics and then put the rig on and pulled the handle. It took a bit of doing, but I was able to pull the reserve. The seal thread did not break, it slipped through the seal.

Derek

[Hooknswoop 19]

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I think it is EXTREMELY URGENT to contact the rigger, in case E-thread has been used on other rigs.

I am working on it. Another rigger brought the rig to me to pack because they were swamped, so I don't know the owner. The other rigger is going to talk to the owner and find out who the rigger was and then contact me. I will contact the rigger, hopefully today. I don't know how to go any faster than that beyond putting their seal code here and I am not going to do that.

Derek