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av8rps(at)tznet.com
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 Posted: Wed Aug 15, 2007 8:08 am Post subject: ALERT! ANYONE FLYING AEROCET 1100 FLOATS!! |
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Do not fly your Aerocet 1100 floats without reading this carefully first!
Recently I had two of the cross brace cables fail on my Aerocet floats because the nicopress sleeves slipped on the cable, caused by not being crimped properly when manufactured. Needless to say, when you lose the cross bracing on your floats, it's the equivelent of losing the bungee chords and safety cables from a bungee style landing gear. All worked out ok for me, but I fear what may have happened in a different scenario.
So for anyone flying aerocet floats on their Kitfox or Avids, please check your nicopress fittings to make sure they are crimped properly. You will need a nicopress go/no-go gauge to be able to tell if they are good or not (a $6 tool). If in doubt, re-crimp or replace them. Without good crimps your floats will sooner or later fail! And even if you have a lot of landings on your floats (mine had hundreds and hundreds), it's just a matter of time before the floats will collapse in operation. Most likely this will happen when subjected to a higher than average load (in my case it was caused by a very large boat wake).
I have since been told that Aerocet had a service bulletin about this problem, but I wasn't aware of it until after mine failed.
I don't want to see anyone get hurt, especially knowing there is such an easy remedy to the problem.
Paul Seehafer
Kitfox IV-1200 Aerocet Amphibs
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av8rps(at)tznet.com
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| Posted: Mon Aug 20, 2007 6:03 am Post subject: ALERT! ANYONE FLYING AEROCET 1100 FLOATS!! |
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From: "Noel Loveys" <noelloveys(at)yahoo.ca>
Paul do you know what the size of the properly crimped fitting is? I don't
have a terminal (go-no go) gauge but I do have several sets of Vernier
calipers.
Noel
*********************
Noel,
Here is what you need to know. A friend had this bulletin saved (which I
didn't even know existed until after my problem). It gives the nicopress
size and procedures.
Paul Seehafer Model IV-1200 912ul Aerocet amphibs
****************************************
SERVICE BULLETIN #41
DATE: September 6, 1994
SUBJECT: Swaged Fittings on the Cross Brace Cables
APPLICABILITY: All Float Equipped Kitfox's
COMPLIANCE: MANDATORY; RESOLVE BEFORE NEXT FLIGHT
FROM: SkyStar Aircraft Engineering Department
A float equipped Kitfox suffered a brace cable failure during a very hard
water landing. The cable failed by pulling through the swaged nico press
sleeve. Since these sleeves are rated for the full breaking strength of the
cable, our investigation focused on the swaging procedure itself.
Before operating your float-equipped Kitfox again, inspect the swaging on
the sleeves of the cross brace cables P/N 66021.000 for proper compression.
The distance across the widest part of the oval in the swaged areas must be
no greater than .340". If you find a sleeve that is improperly swaged and
have access to a swaging tool, you can re-swage the sleeves to the proper
depth. If you do not have a tool available, return the cables to us, and we
will re-swage and return them to you. (Please call Customer Service for a
RMA number before sending your cables to SkyStar for re-swaging). Upon
successful inspection or re-swaging of your cable sleeves, note compliance
with this bulletin in your aircraft logbooks.
If you have any questions regarding this Service Bulletin, call Customer
Service at 208-454-1443.
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Float Flyr
Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland
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| Posted: Mon Aug 20, 2007 7:19 am Post subject: ALERT! ANYONE FLYING AEROCET 1100 FLOATS!! |
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Thanks Paul that's what I needed to know. I'll have my cables checked out
this morning and re crimped if necessary.
I'm still going to order the 7X19 cable and replace those wires over the
winter even though AC43.13 and several other airframe books I have here make
no reference to any problems with Nico press on 1X19. In fact they say for
stress applications where flexibility is not a factor the 1X19 should be
stronger and the Nicopress fitting should be stronger than the cable itself.
Noel
[quote] --
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_________________
Noel Loveys
Kitfox III-A
Aerocet 1100 Floats |
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