Forums: Skydiving: Gear and Rigging:
"smiley washer" info?

 


Canadianfella  (D 29227)

Mar 25, 2011, 12:41 PM
Post #1 of 4 (494 views)
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"smiley washer" info? Can't Post

I'm lazy and don't have time right meow to search.

Was this washer issue announced by aviacom long ago and I missed it, and CSPA is terrible about announcing that issue too, just like it is WAY behind the curve announcing the Aerodyne riser cover issue, or is CSPA the only one that knows?

Here is the TB... I can't seem to upload it and it's not on the website yet...

TECHNICAL BULLETIN #98 Item #1 - Icon Containers with Skyhook Installed
Aerodyne has become aware of recent instances in which a Skyhook Icon container was incorrectly packed with the main risers misrouted under the reserve tab causing a riser cover to not release the main riser when the main was deployed. During testing it was also found that some combinations of components (rig sizing, reserve size, etc.) could potentially result in an incomplete riser deployment when deploying the reserve during a total malfunction.
Aerodyne has modified and tested an updated riser tuck tab design to prevent these occurrences and has as a general update and safety measure decided to implement this design in all Icon equipment with a Skyhook.
This is a mandatory recall of all Icon containers with Skyhook option manufactured prior to January 14, 2011.
For more information contact:
Aerodyne Research, LLC 1405 Flightline Blvd Unit 20 Deland, FL 32724 813-891-6300
Item #2 – Substandard Loop Washers
An Advisory Product Service Bulletin issued by Aviacom SA cites a problem with loop washers, better known as “smiley” washers, that have been in general use in parachute systems with an AAD installed.
Apparently certain discs can break or rip from hole to hole. The problem has been known by the disc supplier since 2009 and according to the supplier at least 400 are still out in the field.
Canadian Heritage
Patrimoine canadien
Sport Canada
AFFILIATE: AERO CLUB OF CANADA • FÉDÉRATION AÉRONAUTIQUE INTERNATIONALE
Due to metal fatique, the disc can break at an unpredictable moment. A broken disc can break the reserve closing loop and cause an untimely opening of the reserve container at a critical time (e.g. floating and landing). Alternatively the damaged loop and/or washer may obstruct or delay the opening of the reserve container or hamper the reserve deployment.
All parachute systems equipped with an Argus AAD should have their disk checked and replaced after each repack. Aviacom highly recommends replacing all smiley washers with stronger steel washers using a figure 8 knot for the loop. Free steel washers will be supplied upon request to all Argus users with mentioning serial number and date of manufacture.
Figure 8 knot Steel washer
Aviacom reminds all riggers that a replacement of the reserve closing loop is mandatory during each repack and that a minimum of 5kg pilot chute pressure must be maintained. Riggers have to consider knot slippage and loop stretch of up to 1 inch (2,5 cm) may occur when installing a new loop.
Item #3 – Mandatory Cutter Replacement Period Extended
Product Service Bulletin SB AMMO050910/3, replacing SB AMMO050910/2, in December 2010 extended the time period for mandatory cutter replacement of cutter units manufactured August 2007 and earlier for Argus AAD by Nobel Energetics.
The grace period for mandatory cutter replacement was extended to the first repack after 31 March 2011—rapidly approaching. The cutter’s manufacturing date can be identified by the cable tag:
Any Rigger A or B can unscrew the cutter and replace the old cutter with the approved one. The connector must be locked hand tight in order to ensure water resistance. All riggers must ensure that the Argus is installed according to the manufacturer’s guidelines as described in the installation manual. For more information regarding Items 2 & 3 contact:
Aviacom SA Karel Goorts, Managing Director Avenue Lavoisier 18 B-1300 Wavre, Belgium Phone: +32-(0)485 868 788
Barry McAuley – Chair Technical & Safety Committee March 2011


Bertt  (D 99999)

Mar 25, 2011, 1:09 PM
Post #2 of 4 (472 views)
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Re: [Canadianfella] "smiley washer" info? [In reply to] Can't Post

http://www.cypres-usa.com/CYPRES_disc_update.pdf

Is that what you're looking for?


pchapman  (D 1014)

Mar 25, 2011, 1:23 PM
Post #3 of 4 (460 views)
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Re: [Canadianfella] "smiley washer" info? [In reply to] Can't Post

In reply to:
I'm lazy and don't have time right meow to search.

Was this washer issue announced by aviacom long ago and I missed it, and CSPA is terrible about

Meow? Smile

Aviacom issued SB AMMO071210/1 on Dec 7, 2010. I don't recall it getting much if any publicity?? The bulletin must be out there somewhere.

It would be quite a change in accepted closing loop procedure to used 'just' a steel washer and a single figure eight loop. They don't give specs about the washer. They don't even make it clear whether only their washers can be used or other ones. Hole diameter would be critical!

Opinions were divided about Airtec's actions after they first announced the washer issue. On the one hand, the washers might be dangerous... but there aren't many of them... but they might still be dangerous.

As for CSPA bulletins, the way they are published a couple months apart, they are best used as "catch up" only. Just there in case you missed seeing something mentioned elsewhere online, or with the occasional Canadian perspective on things.


Bertt  (D 99999)

Mar 25, 2011, 2:12 PM
Post #4 of 4 (425 views)
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Re: [pchapman] "smiley washer" info? [In reply to] Can't Post

Found it on the Australian Parachute Federation site by googling ammo071210/1.
Attachments: AviacomSB_AMMO_071210-1sub_standard_loop_washers.pdf (194 KB)



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