Petzl Stop bobbin cracks · AditNow Community

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simonrl
51% (Neutral)
Administration Topic Starter

15 years ago

Received the following via the North Wales Cave Rescue email list.

Though it worth duplicating here.

Quote:

Two instances have come to light where the top bobbin of a Stop Descender has developed cracks. The bobbin has not failed, and in use the rope tends to produce a compressive force on it so catastrophic failure is unlikely. However, you might like to be check your own Stops just to make sure. Note: The cracks only showed up with the use of a dye disclosing agent.

For more detail see:
http://www.irata.org/safety_notices/Petzl%20Inquiry%20on%20Stop%20Descender.pdf

my orders are to sit here and watch the world go by

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simonrl
51% (Neutral)
Administration Topic Starter

15 years ago

If you haven't already, that document is quite worth a read. it doesn't sound anything to worry about unduly 🙂

my orders are to sit here and watch the world go by

Vanoord
54.4% (Neutral)
Newbie

15 years ago

If I recall correctly, the force of the rope causes the crack to be compressed rather than extended when the Stop is under load, so it's safe to use even if it has cracked.

Which is a relief, of sorts... 😮

There may be some benefit from setting up a scheduled inspection of your equipment, even to the extent of occasionally inspecting it with dye penetrant to confirm that it is in good order.

Hello again darkness, my old friend...