I thought the FARs explicitly prohibited the transponder.

Jim Weir wrote:

Ron, Ron, Ron...

What happened to your mantra from years past...

The transponder connected to the #1 circuit breaker
The circuit breaker connected to the battery bus
The battery bus connected to the #2 circuit breaker
The circuit breaker connected to the landing light

So you are simply troubleshooting the landing light circuit, yes?

{;-)

"Ron Natalie"
shared these priceless pearls of wisdom:

-
-In addition to the certification issue, the transponder is excluded from the
-owner maintenance.

Jim Weir (A&P/IA, CFI, & other good alphabet soup)
VP Eng RST Pres. Cyberchapter EAA Tech. Counselor
http://www.rst-engr.com

--
--Ray Andraka, P.E.
President, the Andraka Consulting Group, Inc.
401/884-7930 Fax 401/884-7950
email
http://www.andraka.com

"They that give up essential liberty to obtain a little
temporary safety deserve neither liberty nor safety."
-Benjamin Franklin, 1759