---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 07/28/09: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:03 AM - That magic moment when everything comes together..... (ianwilson2) 2. 03:30 PM - ROCHESTER FUEL LEVEL INDICATOR WIRING (Thruster87) 3. 10:25 PM - Switch Failures (Vern Little) ________________________________ Message 1 _____________________________________ Time: 09:03:57 AM PST US Subject: AeroElectric-List: That magic moment when everything comes together..... From: "ianwilson2" Just wanted to post and say that my X-Air Hanuman (French microlight 79II) finally flew this weekend. I adopted Bob's Z-20 for the Jabiru installation and apart from wiring the mags the wrong way round (I'm still learning!) everything else works perfectly. I just wanted to say a big thank you to Bob and everyone else on this list - I REALLY couldn't have done it without all of your considerable expertise and willingness to help a rookie. A short, but very sweet video is here.... http://www.youtube.com/watch?v=BTSv4sqDxdQ Ian Read this topic online here: http://forums.matronics.com/viewtopic.php?p=255001#255001 ________________________________ Message 2 _____________________________________ Time: 03:30:50 PM PST US Subject: AeroElectric-List: ROCHESTER FUEL LEVEL INDICATOR WIRING From: "Thruster87" The indicator has 3 posts on the back marked SEN, middle not marked and IGN which goes to which.Didn't want to fry anything. Cheers Alan Read this topic online here: http://forums.matronics.com/viewtopic.php?p=255035#255035 ________________________________ Message 3 _____________________________________ Time: 10:25:28 PM PST US From: "Vern Little" Subject: AeroElectric-List: Switch Failures Approximately 100 hours ago, I replaced all of my Carling toggle switches with Honeywell/Microswitch switches in my RV-9A. I had experienced multiple failures with the Carling switches in the first 150 hours due to loose terminals and overheating leading to charred terminals and wiring. There is a long thread on this topic, including some failure analysis by Bob. At this point, I have had no additional switch failures after switching to the Honeywell switches. At the time, Bob postulated that the lack of decoupling loops in the wiring may have contributed. I was not so sure, so I made no other changes other than replacing the switches. While not conclusive, I would say the root cause of failure was the loose riveted terminals on the Carling Switches. The lack of decoupling loops in the wiring may have contributed, but it appears that a higher quality switch is an effective solution. I had two failures on the Strobe circuit, one on the Landing light circuit and one on the progressive-transfer Master Switch in the first 150 hours with the Carling Switches. So, if anyone thinks that this is just a characteristic of our OBAM aircraft being built with "substandard" components, look at this: ====================== FAA Issues Airworthiness Bulletin For Cessna GA Aircraft Tue, 28 Jul '09 SAIB Affects 100, 200, 300 Series Cessna Aircraft The FAA has issued a Special Airworthiness Information Bulletin (SAIB) to advise pilots and owners of an airworthiness concern on mandatory replacement intervals of Cessna Landing Light, Beacon Light, and Taxi Light switches on Cessna 100, 200, and 300 series airplanes, specified in Cessna service bulletins MEB09-3 and SEB09-6 dated May 11, 2009. Cessna 100, 200, and 300 series airplanes utilize switches in the Landing Light, Beacon Light, and Taxi Light circuits that have been reported failing in the field causing overheating and smoke in the cockpit. There have been reports of burned insulation on the wiring terminals to the switch. On at least one occasion, there was a small fire in the cockpit. The failure in these applications can be attributed to contact erosion leading to irregular arcing and eventual failure of the switch. The contact erosion has been shown to occur after approximately 4,000 cycles of operation. Cessna service bulletins SEB09-6 and MEB09-3, initial release, dated May 11, 2009, specify the following: .An inspection to determine time-in-service for the switches. .Replacement of switches that have been in service for four or more years with the month and year of the installation written on the new replacement switch. .The month and year of the initial installation written on switches that have been in service for less than four years. The FAA recommends that owners, operators, and maintenance technicians act on the above-referenced service bulletins within the next 400 hours of operation, 12 months, or the next annual inspection, whichever comes first. ====== Vern Little Vx Aviation ----- Original Message ----- From: "Thruster87" Sent: Monday, July 27, 2009 11:05 PM Subject: AeroElectric-List: Re: Icom A-210 intercom > > > I did the 2 second push on the Dual button and the screen shows the ics as > on and still no go.Spoke to Icom techi with whom we went thru the menu but > still no go . Might look at putting a intercom in. Cheers Alan > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=254978#254978 > > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.