---------------------------------------------------------- Pulsar-List Digest Archive --- Total Messages Posted Fri 07/19/13: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:09 PM - Re: Pulsar-List Digest: 2 Msgs - 07/18/13 (Bob Hartunian) ________________________________ Message 1 _____________________________________ Time: 05:09:41 PM PST US Subject: Pulsar-List: Re: Pulsar-List Digest: 2 Msgs - 07/18/13 From: Bob Hartunian Yes, those were from Aerodesigns gear on XP. Bob H > From: Pulsar-List Digest Server > Date: Thu, 18 Jul 2013 23:58:16 -0700 > To: Pulsar-List Digest List > Subject: Pulsar-List Digest: 2 Msgs - 07/18/13 > > * > > ================================================= > Online Versions of Today's List Digest Archive > ================================================= > > Today's complete Pulsar-List Digest can also be found in either of the > two Web Links listed below. The .html file includes the Digest formatted > in HTML for viewing with a web browser and features Hyperlinked Indexes > and Message Navigation. The .txt file includes the plain ASCII version > of the Pulsar-List Digest and can be viewed with a generic text editor > such as Notepad or with a web browser. > > HTML Version: > > > http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter=2 > 013-07-18&Archive=Pulsar > > Text Version: > > > http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter > 13-07-18&Archive=Pulsar > > > =============================================== > EMail Version of Today's List Digest Archive > =============================================== > > > ---------------------------------------------------------- > Pulsar-List Digest Archive > --- > Total Messages Posted Thu 07/18/13: 2 > ---------------------------------------------------------- > > > Today's Message Index: > ---------------------- > > 1. 01:18 PM - Re: Another nose gear failure (barrynorman@comcast.net) > 2. 01:36 PM - Re: Another nose gear failure (GREGSMI@aol.com) > > > > ________________________________ Message 1 > _____________________________________ > > > Time: 01:18:04 PM PST US > From: barrynorman@comcast.net > Subject: Re: Pulsar-List: Another nose gear failure > > Greg, > > Are these nose gears on planes before the Skystar nose gear? > > Barry > > ----- Original Message ----- > From: GREGSMI@aol.com > Sent: Wednesday, July 17, 2013 9:15:41 PM > Subject: Pulsar-List: Another nose gear failure > > > We have another nose gear failure, this one caught by the owner, during an > inspection. In this case, the weld on the back side of the collar had crack > ed. Fortunately, this was caught before the nose gear fell off. > > This is the forth failure I know about in the last two years in the United > States. I have talked with Alan Gill in the UK and he says they had 4 > =93 5 failures and have started modifying the gears to a sleeve and bolt > concept. The issue is that the majority of spindle failures have been insi > de the collar thus an inspection may not reveal the failure until it happen > s. If a total failure occurs it can cause considerable damage to the aircra > ft, imagine landing your plane with the front wheel and fork missing. > > It is difficult to say what is causing the failures but if you are loading > the nose gear, an example is 582 flown with full header tank or all 912 > =99s, where the nose gear weight is high, or using non hard surface runw > ays, then the nose gear is carrying a lot of weight. > > In any event, given the crack found today on a 912 aircraft that has been i > n service for a while, it is safe to say that all nose gears should be care > fully inspected for cracks in the weld area and also check the spindle to a > ssure it is straight. If bent or a crack has formed, the gear needs immedia > te attention. Since the collar may hide a fatigue crack in the spindle, eve > n these inspections may not reveal a problem. > > We have two engineers in our group that are working on a simple fix, simila > r to that used in the UK. They should have it completed this week. When the > details are worked out, the repair will be offered to the group. Drawings > will be provided and if desired, they can provide a complete repair. > > Be safe, > > =========== > = > > ________________________________ Message 2 > _____________________________________ > > > Time: 01:36:47 PM PST US > From: GREGSMI@aol.com > Subject: Re: Pulsar-List: Another nose gear failure > > Yes, this is the Aerodesigns nose gear. > > > In a message dated 7/18/2013 3:18:27 P.M. Central Daylight Time, > barrynorman@comcast.net writes: > > Greg, > > Are these nose gears on planes before the Skystar nose gear? > > Barry > > > ____________________________________ > From: GREGSMI@aol.com > Sent: Wednesday, July 17, 2013 9:15:41 PM > Subject: Pulsar-List: Another nose gear failure > > > We have another nose gear failure, this one caught by the owner, during an > > inspection. In this case, the weld on the back side of the collar had > cracked. Fortunately, this was caught before the nose gear fell off. > This is the forth failure I know about in the last two years in the United > > States. I have talked with Alan Gill in the UK and he says they had 4 > =93 5 > failures and have started modifying the gears to a sleeve and bolt concept > . > The issue is that the majority of spindle failures have been inside the > collar thus an inspection may not reveal the failure until it happens. If > a > total failure occurs it can cause considerable damage to the aircraft, > imagine landing your plane with the front wheel and fork missing. > It is difficult to say what is causing the failures but if you are loading > > the nose gear, an example is 582 flown with full header tank or all 912 > =99s, > where the nose gear weight is high, or using non hard surface runways, > then the nose gear is carrying a lot of weight. > In any event, given the crack found today on a 912 aircraft that has been > > in service for a while, it is safe to say that all nose gears should be > carefully inspected for cracks in the weld area and also check the spindle > to > assure it is straight. If bent or a crack has formed, the gear needs > immediate attention. Since the collar may hide a fatigue crack in the spin > dle, > even these inspections may not reveal a problem. > We have two engineers in our group that are working on a simple fix, > similar to that used in the UK. They should have it completed this week. W > hen > the details are worked out, the repair will be offered to the group. Drawi > ngs > will be provided and if desired, they can provide a complete repair. > Be safe, > Greg > > > arget="_blank">http://www.matronics.com/Navigator?Pulsar-List > > > tp://forums.matronics.com _blank">http://www.matronics.com/contribution > > > > > > > > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message pulsar-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Pulsar-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/pulsar-list Browse Digests http://www.matronics.com/digest/pulsar-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.