M20R Posted October 16, 2014 Report Share Posted October 16, 2014 Today while taxing out, my nose wheel tire blew out. I check the pressure regularly and the tire had little wear. The tube had a large split. I realize that the ovation and it's IO 550 and prop add considerable weight to that little tire. I was wondering if anyone else has had this problem. Quote Link to comment Share on other sites More sharing options...
Jerry 5TJ Posted October 16, 2014 Report Share Posted October 16, 2014 If you have a Goodyear inner tube, you might review the posts about the Goodyear CE-11-47R1 SAIB, Goodyear had some problems with tubes made early in this decade, apparently. The last sentence of the SAIB specifically refers to the size tube used in the nose wheel of Mooney aircraft. http://mooneyspace.com/topic/4348-goodyear-innertube-guidance/?hl=ce-11-47r1 The SAIB reads: This Special Airworthiness Information Bulletin (SAIB) alerts operators, pilots, and aircraft manufacturers of possible inner tube failures made from butyl rubber by Goodyear Aviation Tires, (Goodyear). At this time, the failure of the inner tubes is not an unsafe condition that would warrant airworthiness directive (AD) action under Title 14 of the Code of Federal Aviation Regulations (14 CFR) part 39. The SAIB has been revised to incorporate updated information from Goodyear and highlight inner tube failures are not limited to only cold weather operations. Background There have been several reports of Goodyear inner tubes failures during cold weather operations. The failures were reported following short flights or following ground operations. Goodyear is aware of these failures and has made several attempts to improve the cold weather performance of its inner tubes. In November 2008, Goodyear incorporated a change to its compound for their butyl rubber inner tubes. Since then, the reliability of the inner tubes had increased, but cold weather failures were still reported. Therefore, Goodyear has started to test another improvement to their butyl rubber inner tubes made from an updated compound. Following successful field testing, Goodyear will make the improved inner tubes available. Goodyear inner tube failures are not limited to only cold weather operations, additional failures have been reported. Goodyear is aware of the issues from the field and began an improvement program to investigate and improve the inner tubes. A flex crack was occasionally observed on the natural fold from the extrusion process during manufacturing. The compound was modified to reduce the impact of extrusion, optimize splicing pressure and improve flex which should improve crack resistance. Additionally cold temperature properties of the tube were improved to further enhance performance for cold temperature operations. Inner tubes were produced with the improved compound and field tested with positive results. As of August 15, 2011 the production has been changed over to the modified compound for 5.00-5 inner tubes. Quote Link to comment Share on other sites More sharing options...
carusoam Posted October 16, 2014 Report Share Posted October 16, 2014 While taxiing? That sounds like the tube may have been corrupted. Possibly pinched or folded while being installed. How long has it been in place? Best regards, -a- Quote Link to comment Share on other sites More sharing options...
M20R Posted October 16, 2014 Author Report Share Posted October 16, 2014 The tube has approx. 150 hours and 2 years service. i'll have to check the brand, but I think it was a Michelin. The tube had a pretty good split but it's hard to tell if that happened as the aircraft slowed to a stop. Quote Link to comment Share on other sites More sharing options...
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