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We have a Narco Nav122 in a Cherokee 140. We had it repaired by BevanRabell about 2 years ago and it quit again.
We are considering replacing it with a Val INS-429.
We have an older INS-422 in a ...

2nd digit knob broke on a Garmin GTX320A transponder. Garmin wants to sell the whole front panel. I will probably find some knobs from digi-key unless someone has a better solution.

Any one have ...

Les,
We had a similar issue with a 430W in a C172. It was chirping all the time, so we adjusted the squelch value maybe 5 or so a couple times. Then we had the opposite problem; not hearing center a ...

Minimal IFR: What to do with your old Nav-122?
Lots of Pipers from the 60 and 70’s have Narco radios – they were the least expensive at the time, have since gone out of business and support for ...

I had a broken stud on an older O320. We removed it by welding a washer to what was left of the stud, then welding a nut to the washer.

I peened the washer like a Belleville or a funnel to get it ...

Skip,
Thanks for the information. My student also wants to add a glide slope at a lower cost.
Your solution is a KNS80 plus an indicator.
- KNS80 = $600
- KI206 = $900
- Total Eq=$1500 plus ins ...

Avionics Upgrade options;

I have A&P, BSEE, CFI-I and lotsa other letters...

I have an instrument student with a 1962 Cessna 172 with the
following:

RST Audio panel/MB – Works good.
R ...

D,

I've only installed these in place of a rotating beacon, not a flasher. Both my 150's have flashers and we've replaced both the bulbs and flasher units when they quit working with new faa/pma a ...

I wouldn't mess with repairing a rotating beacon - unless I for some reason really wanted to keep it.

I have replaced these as a minor repair with something like this:
http://www.aircraftspruce. ...