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  #11  
Old 03-23-2013, 07:53 AM
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N184DA N184DA is offline
 
Join Date: Jun 2007
Location: Tacoma, WA
Posts: 133
Exclamation

My apologies, I didn't realize there was an easier way to insert a link:

http://rgl.faa.gov/Regulatory_and_Gu...E/CE-13-22.pdf
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Derrick L. Aubuchon
RV4 (Flying, approx 900hrs)
Tacoma Narrows Airport (TIW)
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  #12  
Old 03-23-2013, 08:03 AM
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ccsmith51 ccsmith51 is offline
 
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Default

Also this thread on the same topic:

http://www.vansairforce.com/communit...ad.php?t=97715
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Maule M5-180C (Sold)
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  #13  
Old 03-28-2013, 07:34 AM
n567vb n567vb is offline
 
Join Date: Feb 2008
Location: MN
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If I read correctly, the part numbers called out were all 50 Amp breakers. I know I don't have any of those! (the -50 at the end is calling out the amp value)

Vince
RV-7
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  #14  
Old 03-28-2013, 08:06 AM
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tommylewis tommylewis is offline
 
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Default my failure

The breaker that I had fail was a 10 amp.
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  #15  
Old 03-28-2013, 10:16 AM
morganjp morganjp is offline
 
Join Date: Oct 2008
Location: Atlanta, GA
Posts: 254
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Sounds like much ado about nothing. I have these all over my panel and have had one issue with the amp size not being large enough for the load.

2% at 2000 cycles with an average of one cycle per flight hour is the same as my recommended TBO engine overhaul which will concern me when I get that far.

50% at 6500 hrs 90% or more of those flying RV's will never see that amount of usage on thier aircraft in the owners lifetime. I see 15 year old Rv's in the ads all the time with less than 700 hrs on the airframe.

Put an extra 5 and 10 amp W31 breaker ( $50 cost) in your emergency haul around bag and forget about it.

John Morgan
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  #16  
Old 03-28-2013, 10:28 AM
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DCat22 DCat22 is offline
 
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Location: Houston, TX
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EDIT: I still don't like these numbers for a switch.

Quote:
Analysis of available service difficulty report (SDR) data indicates 2
percent of those analyzed failed by 2,000 cycles; 50 percent of those analyzed failed by 6,500 cycles, and 90 percent of those analyzed failed by 10,000 cycles.
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  #17  
Old 03-28-2013, 11:40 AM
rockwoodrv9 rockwoodrv9 is offline
 
Join Date: Dec 2011
Location: Meridian ID, Aspen CO, Okemos MI
Posts: 2,645
Default Chat with Tyco

I just went to the Tyco site and did a "chat" with one of their guys. He had no idea what SAIB even was. I sent him the link and he was baffled. He said he would have to talk to engineering and get back to me.

I just read this as I was installing the switches in my panel. Almost every switch I have is a Tyco W31. I do not want to put switches in that are going to be a problem.

I assume that many of the RV's flying today have these same switches and I haven't heard of that many problems, but if people are carrying spares, that is not good. I have never had a switch go out in any of my cars or trucks. Maybe I should get auto switches?


Those Klixon 7270's are expensive. At $120 a switch, that sounds like crazy money. Maybe carrying around spare switches is the answer. I am stumped. I will post if tyco gets back to me.
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  #18  
Old 03-28-2013, 12:33 PM
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airguy airguy is offline
 
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Location: Garden City, Tx
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Quote:
Originally Posted by rockwoodrv9 View Post
Maybe carrying around spare switches is the answer.
Many RV'ers also carry spare tire inner tubes in their onboard emergency kit, and for the same reason. Parts wear out and break - if it's practical to do so, carry a spare.
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N16GN flying 700 hrs and counting; IO360, SDS, WWRV200, Dynon HDX, 430W
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.
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  #19  
Old 03-28-2013, 02:07 PM
rockwoodrv9 rockwoodrv9 is offline
 
Join Date: Dec 2011
Location: Meridian ID, Aspen CO, Okemos MI
Posts: 2,645
Default TE engineer

I tried to find out from Tyco what the story was. This is what I got back:

Hello,

Thank you for contacting TE Connectivity.

My engineer said: "This is the first I heard of this. There is really little that I can say other than the FAA recommendation be followed."

Dale


Thank you for your inquiry,
TE Connectivity
Technical Support Center
http://www.te.com
For Support: http://www.te.com/help
800-522-6752 x2


I guess I will just take the chance and hope I am on the good side of the odds and change as they **** out!
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  #20  
Old 01-24-2017, 09:40 PM
Chkaharyer99 Chkaharyer99 is offline
 
Join Date: Oct 2011
Location: Pilot Hill, CA
Posts: 845
Default 10 amp TYCO W31 series toggle Circuit Breaker failure.

Resurrecting an old post.

Today, after run up and just prior to take off, I switched the TYCO W31 toggle breaker (10A) for my Airflow Performance fuel pump on and got nothing.

With the engine running I can't hear the pump operating so I look at my EFIS to see if I get an indication of rise in fuel pressure and an increase in amperage. Again, nothing. I returned to the hangar to investigate. Result, bad TYCO.

Before reading this thread, I replaced the TYCO with another TYCO and it works for now.

The KLIXON 7270-1 circuit breakers appear to be more optimal.

Do any of you use an indicator light to show when your fuel pump is running?
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RV-8
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