57501 R1 Transponder 261 Extension Harness April 02, 2024 18:56 Updated Drawing for extension cable to standard ACM transponder harness for transponders mounted in tail. 57501 R1 Transponder 261 Extension Harness.pdf 300 KB Download Related articles 57500 R6 XPNDR & GPS & ADSB 57308 R1 Flarm AT-1 Harness Advanced Control Module and Advanced Panel Install Manual 57875 R2 TCW Elev Trim Booster Harness 57504 R1 ACM to 330ES