---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Wed 11/25/20: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:37 AM - Australian Yak-52 warning notice - elevator bellcrank (Stressmerchant) 2. 09:27 AM - Re: Australian Yak-52 warning notice - elevator bellcrank (Dave Jester) 3. 11:01 AM - Re: Australian Yak-52 warning notice - elevator bellcrank (Anthony Savarese) ________________________________ Message 1 _____________________________________ Time: 01:37:29 AM PST US Subject: Yak-List: Australian Yak-52 warning notice - elevator bellcrank From: "Stressmerchant" As you may recall, there was a fatal accident involving a Yak-52 in Australia in 2019. The accident report is in review, but the Australian Transport Safety Bureau (ATSB) have released a safety bulletin regarding one of their findings. The highlighted issue relates to the elevator bellcrank, an issue I'm sure the members of this forum have heard before. For reference, the ATSB notice is at: https://www.atsb.gov.au/publications/safety-advisory-notice/ao-2019-027-san-024/ Read this topic online here: http://forums.matronics.com/viewtopic.php?p=499511#499511 ________________________________ Message 2 _____________________________________ Time: 09:27:26 AM PST US From: Dave Jester Subject: Re: Yak-List: Australian Yak-52 warning notice - elevator bellcrank So where can the steel bellcranks be purchased? Sent from my iPhone > On Nov 25, 2020, at 3:40 AM, Stressmerchant wrote: > > > As you may recall, there was a fatal accident involving a Yak-52 in Australia in 2019. The accident report is in review, but the Australian Transport Safety Bureau (ATSB) have released a safety bulletin regarding one of their findings. > > The highlighted issue relates to the elevator bellcrank, an issue I'm sure the members of this forum have heard before. > > For reference, the ATSB notice is at: > https://www.atsb.gov.au/publications/safety-advisory-notice/ao-2019-027-san-024/ > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=499511#499511 > > > > > > > > > ________________________________ Message 3 _____________________________________ Time: 11:01:16 AM PST US From: Anthony Savarese Subject: Re: Yak-List: Australian Yak-52 warning notice - elevator bellcrank One unanswered question. What was the condition of the 4 bolts and nuts securing the elevator counterweight to the bell rank? I guarantee if those bolts were not properly secured, that counterweight moves and put significant side loads on the bell tank. That side loading may be the cause of original bell rank cracking. Those bolts and nuts should be checked at each inspection and marked with torque seal. How many of them have been other than visually inspected? Dennis Sent from my iPhone > On Nov 25, 2020, at 12:29 PM, Dave Jester wrote: > > > So where can the steel bellcranks be purchased? > > Sent from my iPhone > >> On Nov 25, 2020, at 3:40 AM, Stressmerchant wrote: >> >> >> As you may recall, there was a fatal accident involving a Yak-52 in Australia in 2019. The accident report is in review, but the Australian Transport Safety Bureau (ATSB) have released a safety bulletin regarding one of their findings. >> >> The highlighted issue relates to the elevator bellcrank, an issue I'm sure the members of this forum have heard before. >> >> For reference, the ATSB notice is at: >> https://www.atsb.gov.au/publications/safety-advisory-notice/ao-2019-027-san-024/ >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=499511#499511 >> >> >> >> >> >> >> >> >> > > > > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-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/yak-list Browse Digests http://www.matronics.com/digest/yak-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.