Marcopolo Posted June 8, 2016 Report Share Posted June 8, 2016 Hello All, Looking for any assistance in where this KMT-112 Magnetic Azimuth Transponder might be mounted in a 1981 M20K. The KFC-200 A/P guide suggests in a wingtip location so as to minimize interference but I cannot seem to locate it on my air frame (sn 25-0577). Any suggestions, assistance would be greatly appreciated. Ron Quote Link to comment Share on other sites More sharing options...
KSMooniac Posted June 8, 2016 Report Share Posted June 8, 2016 Left wing, outboard of the main gear. Sent from my iPad using Tapatalk Quote Link to comment Share on other sites More sharing options...
StevenL757 Posted June 8, 2016 Report Share Posted June 8, 2016 Yep. Additionally, the inspection panel covering the location may have a label on it that says something to the effect of "Magnetic Azimuth Transponder Located Under This Panel", or similar language. Quote Link to comment Share on other sites More sharing options...
Marcopolo Posted June 8, 2016 Author Report Share Posted June 8, 2016 That would be a great label for the panel indeed. The plane was just repainted and I can assure that the label you've suggested is long gone. I will take both of these responses and re-invigorate my search for this mysterious instrument. Thank you both. Ron Quote Link to comment Share on other sites More sharing options...
StevenL757 Posted June 8, 2016 Report Share Posted June 8, 2016 Ron, it will most-likely be above one of the larger "rectangular" shaped panels, using "about" 10 screws to hold it...at least that's the way it is on my Ovation. Quote Link to comment Share on other sites More sharing options...
rahill Posted June 8, 2016 Report Share Posted June 8, 2016 It can also be in the tail-cone with the other electronics - it is on the KFC-200 installation in our M20J. Quote Link to comment Share on other sites More sharing options...
Marcopolo Posted June 8, 2016 Author Report Share Posted June 8, 2016 I have checked the Battery tray area and tail cone, it's not there. The A/P computer and free slave electric gyro were on the tray with the battery but this transponder was not there. I worked my way in through several access panels from each wing-tip with no joy, I probably stopped one panel shy of its location (just my luck). I will work inward some more starting on the left wing first, after work on Friday! Thanks all, Ron Quote Link to comment Share on other sites More sharing options...
Guest Posted June 8, 2016 Report Share Posted June 8, 2016 36 minutes ago, Marcopolo said: I have checked the Battery tray area and tail cone, it's not there. The A/P computer and free slave electric gyro were on the tray with the battery but this transponder was not there. I worked my way in through several access panels from each wing-tip with no joy, I probably stopped one panel shy of its location (just my luck). I will work inward some more starting on the left wing first, after work on Friday! Thanks all, Ron Once you locate it, be sure the panel is held on with non magnetic screws, brass or stainless steel and try to avoid use of strong magnetic tools on the panel. Clarence Quote Link to comment Share on other sites More sharing options...
Marcopolo Posted June 8, 2016 Author Report Share Posted June 8, 2016 Good advice, will do! Quote Link to comment Share on other sites More sharing options...
carusoam Posted June 9, 2016 Report Share Posted June 9, 2016 Of course, the brass screws may have been painted over...? They are a sure hint if it hasn't been painted over... Best regards, -a- Quote Link to comment Share on other sites More sharing options...
Marcopolo Posted June 13, 2016 Author Report Share Posted June 13, 2016 For those still following or slightly interested, no luck yet in locating the transponder. I was able to remove all of the square(ish) inspection panels along the underside of both wings with no joy on locating said transponder. There were 2 oval (closer to the leading edge) inspection panels that each had a stripped screw, one on each wing, so not sure if it's hiding behind one of those. Reason for my search may be needed also....I am having an issue with the autopilot where the Slave-in mode on the PNI/HSI will not align properly, works fine in free slave mode but I cannot fly with the GPS/Nav mode coupled due to directional incompetence. Fly's fine on HDG mode with slave switch to free opererating as a standard DG with precession. My intent was to check/clean the connection to the Azimuth transponder in hopes(wishes) of correcting the slaving issue. KFC-200 A/P system. Quote Link to comment Share on other sites More sharing options...
Guest Posted June 13, 2016 Report Share Posted June 13, 2016 2 hours ago, Marcopolo said: For those still following or slightly interested, no luck yet in locating the transponder. I was able to remove all of the square(ish) inspection panels along the underside of both wings with no joy on locating said transponder. There were 2 oval (closer to the leading edge) inspection panels that each had a stripped screw, one on each wing, so not sure if it's hiding behind one of those. Reason for my search may be needed also....I am having an issue with the autopilot where the Slave-in mode on the PNI/HSI will not align properly, works fine in free slave mode but I cannot fly with the GPS/Nav mode coupled due to directional incompetence. Fly's fine on HDG mode with slave switch to free opererating as a standard DG with precession. My intent was to check/clean the connection to the Azimuth transponder in hopes(wishes) of correcting the slaving issue. KFC-200 A/P system. Just a thought, is there any info in the equipment list? Clarence Quote Link to comment Share on other sites More sharing options...
Jerry 5TJ Posted June 13, 2016 Report Share Posted June 13, 2016 Untried Test Suggestion: Power up the avionics system on the ground with external power. Your vacuum instruments will be INOP unless you have a back-up vacuum pump powered by electricity, or a shop vacuum pump. Have someone watching the slaving correction meter -- I'm assuming you have a KCS-55A system -- while you pass a magnet around the bottom of wings. When the magnet is near the KMT-112 the slaving needle should jump. You've said your slaving is not working so your cockpit helper may have to twist the HSI card to keep the slaving needle off the pegs. Quote Link to comment Share on other sites More sharing options...
carusoam Posted June 14, 2016 Report Share Posted June 14, 2016 Marco, you may want to verify.... Magnetometer vs. Transponder in your recent post above. The long name of the magnetometer includes the word transponder. But, to use transponder in place of magnetometer may get you funny looks. Dirty wire connectors have been the source of my magnetometer's ills. Once in the last seven years. Good luck. Best regards, -a- Quote Link to comment Share on other sites More sharing options...
Marcopolo Posted June 14, 2016 Author Report Share Posted June 14, 2016 (edited) M20Doc, I will check the POH this weekend to see if it shows the station number where this item may be installed, thank you! Jerry 5TJ, If the POH equipment list doesn't get me there, then your suggestion is next, thanks! Carusoam, How about Magnetic Azimuth Transmitter (thingy) or Flux Detector Valve? needs an edit, my apologies...thank you! I get Funny looks for reasons other than my use of incorrect words...trust me! Edited June 14, 2016 by Marcopolo additional info 1 Quote Link to comment Share on other sites More sharing options...
mooniac15u Posted June 14, 2016 Report Share Posted June 14, 2016 4 hours ago, Marcopolo said: Carusoam, How about Magnetic Azimuth Transmitter (thingy) or Flux Detector Valve? Is this what you're looking for? Quote Link to comment Share on other sites More sharing options...
Marcopolo Posted June 14, 2016 Author Report Share Posted June 14, 2016 If it will help to align my HSI/PNI then sure! Quote Link to comment Share on other sites More sharing options...
mooniac15u Posted June 14, 2016 Report Share Posted June 14, 2016 I think you're going to need a bigger alternator. Quote Link to comment Share on other sites More sharing options...
Marcopolo Posted August 2, 2016 Author Report Share Posted August 2, 2016 Okay Folks, because I know we all hate open ended threads let's close this one out. The Azimuth Transmitter was indeed located in the middle of the left wing, but not behind a screw equipped inspection panel. Rather it was located be hind a riveted 'inspection' panel. I used a bore-scope through adjoining screw attached inspection panels to locate it. Once located, I removed the connector and cleaned an oxidized pin, applied a bit of corrosion X and reattached the connector. Problem solved, KFC200 autopilot is back on rails and tracking as advertised. Thank you all for your assistance. Ron 1 Quote Link to comment Share on other sites More sharing options...
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