---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Tue 12/16/25: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:18 AM - Re: Yak-List Digest: 1 Msgs - 12/14/25 (Justin Drafts) 2. 11:11 AM - Re: Re: Yak-List Digest: 1 Msgs - 12/14/25 (Mark Bitterlich) ________________________________ Message 1 _____________________________________ Time: 10:18:36 AM PST US From: Justin Drafts Subject: Yak-List: Re: Yak-List Digest: 1 Msgs - 12/14/25 Mike, any luck chasing the Yak's wiring gremlin? Hadn't seen any responses, so I'll chime in w/ my hillbilly 2-cents worth. My Nanchang was fraught with electrical issues years ago, and I wisely decided to just get down to basics and refurb all the ground connections (= Scotchbrite all terminals, alcohol clean, reinstall w/ a tiny dab of sealing "No-Ox Special-A" terminal paste). That helps a lot. My initial, "Capt.Obvious" thought is you've got a nasty short lurking... disconnecting the battery was the best thing you could have done, as well as staging for troubleshooting. Since everything worked so well on previous flight, I'm guessing it's just in 1 spot, so visually inspecting wire runs from battery to the cockpit switch box can be a good first chore. Doesn't take much at all to create a short in a Nanchang... Pls keep us posted on progress... Justin N280NC, Seattle On Sun, Dec 14, 2025 at 11:35=AFPM Yak-List Digest Server < yak-list@matronics.com> wrote: > * > > ======================== > Online Versions of Today's List Digest Archive > ======================== > > Today's complete Yak-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 Yak-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 25-12-14&Archive=Yak > > Text Version: > > > http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&C hapter 25-12-14&Archive=Yak > > > ======================== ======================= > EMail Version of Today's List Digest Archive > ======================== ======================= > > > ---------------------------------------------------------- > Yak-List Digest Archive > --- > Total Messages Posted Sun 12/14/25: 1 > ---------------------------------------------------------- > > > Today's Message Index: > ---------------------- > > 1. 01:42 AM - Unusual Electric Problem (Stressmerchant) > > > ________________________________ Message 1 > _____________________________________ > > > Time: 01:42:13 AM PST US > Subject: Yak-List: Unusual Electric Problem > From: "Stressmerchant" > > > I encountered an unusual electric problem with my Yak-52 today. I haven't > yet been > able to do any real trouble shooting, will only have time later in the > week. > > The aircraft has recently been for maintenance. Performed well for > post-maintenance > test flight, and no issues on the short ferry flight home. > > Took a work colleague flying today. No issues on flight, landed, shut dow n > normally. > Once I had pushed the aircraft back in the hangar, I went to put the cano py > cover over the aircraft - keeps dust off during the week. I noticed that a > light was on in the rear cockpit - the warning light that the master > switch in > the front cockpit was on. I looked, master switch was off - as were all > others. > I then turned the master switch on and off, to see if that cured the > problem. > Not only did it fail to cure the problem, no electrics came on at all whe n > the master switch was in the on poisition - except the rear cockpit light > that > remained illuminated. No electrics at all - no fuel tank bars, no gear > lights, > nothing registering on the voltmeter. > > I didn't have time to investiage fully, so I just disconnected the batter y > and > left it at that. But I am puzzled by this. The aircraft had been flying > fine, > no issues with anything electric, radios working, etc. But following the > shutdown, > nothing appears to work - except a single rear cockpit light telling me > that > the master switch is on. > > Any ideas on where to start looking? I'm thinking that my first port of > call wil > be a voltage check on the battery - although they are fairly new, it coul d > be > that one has died completely. > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=516725#516725 > > =========== =========== =========== =========== =========== > > ________________________________ Message 2 _____________________________________ Time: 11:11:08 AM PST US Subject: RE: Yak-List: Re: Yak-List Digest: 1 Msgs - 12/14/25 From: Mark Bitterlich SSdkIHN1c3BlY3QgdGhlIHBvd2VyIG9uIHJlbGF5IGluIHRoZSBtYWluIGVsZWN0cmljYWwgcGFu ZWwuIEdyYXkgYm94IHJpZ2h0IHNpZGUgZm9yd2FyZCBvZiBjb2NrcGl0IGFjY2VzcyBwYW5lbCwg dHdvIHRodW1iIGtub2JzIGhvbGQgdGhlIGNvdmVyIG9uLsKgwqBZb3UnbGwgcmVhbGx5IG5lZWQg c29tZSBlbGVjdHJpY2FsIHNjaGVtYXRpY3MgaGVyZS4gVGhlcmUgaXMgYWxzbyBhIG1haW4gYnVz IGZ1c2UgaW5zaWRlIHRoaXMgYm94IHRoYXQgaXMgc3VzcGVjdC4gVGhpcyBhc3N1bWluZyBiYXR0 ZXJ5IHZvbHRhZ2UgaXMgZ29vZC7CoEhvcGVmdWxseSB5b3UndmUgZ290IGJhdHRlcnkgaXNzdWVz 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