AirTalk.org Aviation discussions newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Slide-in Garmin GTX-320A          AirTalk.org Forum Index -> Owning Airplanes View previous topic :: View next topic   Author Message Marco Leon Guest Posted: Fri May 04, 2007 9:47 pm    Post subject: Slide-in Garmin GTX-320A The KT-76A finally went tango uniform so I'm getting a Garmin GTX-320A with the adapter for the King transponder. Actually, the KT-76A still works but it takes 45 minutes to an hour for it to warm up so it's equivalent to dead. Has anyone out there gone the slide-in replacement route on the Garmin? How was the experience and did you have to get a new antenna (I have the pole-type)? Lastly, was it a logbook entry or did you have to get an avionics shop so do anything else besides the IFR transponder check? The W&B seems to be negligible given the <1lb weight difference. Thanks in advance. Marco Back to top rq3 Guest Posted: Fri May 04, 2007 10:55 pm    Post subject: Re: Slide-in Garmin GTX-320A I did a 320A slide-in replacement for an old Narco AT-50. I replaced both the antenna and the coax, primarily because they were of unknown age. The installation was painless and I filed a 337 and had a transponder cert done to complete the process. Rip Marco Leon wrote: Quote: The KT-76A finally went tango uniform so I'm getting a Garmin GTX-320A with the adapter for the King transponder. Actually, the KT-76A still works but it takes 45 minutes to an hour for it to warm up so it's equivalent to dead. Has anyone out there gone the slide-in replacement route on the Garmin? How was the experience and did you have to get a new antenna (I have the pole-type)? Lastly, was it a logbook entry or did you have to get an avionics shop so do anything else besides the IFR transponder check? The W&B seems to be negligible given the <1lb weight difference. Thanks in advance. Marco Back to top Marco Leon Guest Posted: Sat May 05, 2007 1:20 am    Post subject: Re: Slide-in Garmin GTX-320A "rq3" <rquinby*nospam*@*nospam*snet.net> wrote in message news:asK_h.43$y_7.35 (AT) newssvr27 (DOT) news.prodigy.net... Quote: I did a 320A slide-in replacement for an old Narco AT-50. I replaced both the antenna and the coax, primarily because they were of unknown age. The installation was painless and I filed a 337 and had a transponder cert done to complete the process. Rip Did you file the 337 yourself or did you have a shop do it? Back to top Rip Guest Posted: Sat May 05, 2007 2:11 am    Post subject: Re: Slide-in Garmin GTX-320A Marco Leon wrote: Quote: "rq3" <rquinby*nospam*@*nospam*snet.net> wrote in message news:asK_h.43$y_7.35 (AT) newssvr27 (DOT) news.prodigy.net... I did a 320A slide-in replacement for an old Narco AT-50. I replaced both the antenna and the coax, primarily because they were of unknown age. The installation was painless and I filed a 337 and had a transponder cert done to complete the process. Rip Did you file the 337 yourself or did you have a shop do it? I'm an A&P/IA. I did it myself. Rip Back to top bill_hale@verigy.com Guest Posted: Sun May 06, 2007 6:05 am    Post subject: Re: Slide-in Garmin GTX-320A Curious to know... did you make this a field approval? So a fed stamped box 3 on the 337? If not, what approved data did u use? Around here, A&Ps are limited to installing ELTs. A real pain. I have to get a shop to run all this thru... then they have little problem. A&Ps have no standing, even IAs. I'm curious whether it's really different where you are. Bill Hale Loveland CO On May 4, 2:11 pm, Rip <rqui...@snet.net> wrote: Quote: Marco Leon wrote: "rq3" <rquinby*nospam*@*nospam*snet.net> wrote in message news:asK_h.43$y_7.35 (AT) newssvr27 (DOT) news.prodigy.net... I did a 320A slide-in replacement for an old Narco AT-50. I replaced both the antenna and the coax, primarily because they were of unknown age. The installation was painless and I filed a 337 and had a transponder cert done to complete the process. Rip Did you file the 337 yourself or did you have a shop do it? I'm an A&P/IA. I did it myself. 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