Dear, I have a question regarding AN/APN-59 Wxr Radar problem. I m facing a flying deffect since 1 week.
"RADAR STAB FUCTION IS U/S. ANTENNA PAINTS GROUND WITH STAB SWITCH ON."
When i worked on this deffect i observed that after 30 minutes of STAB operation, the gyro of CN-221 (Stab Data Gen) became un-balanced in roll aprroxmiately 10 degrees. After verifying the aircraft wiring i found that ROLL ERECT information wire was broken from the plug. I soldered it back. Next i put the system ON and checked AC voltage on TB-3 and 21 in J/Box-2. 115VAC remained available till the STAB DATA energized. When it energized said voltages dropped to 433 mVAC. Here i am confused, i think 115VAC should not drop to 0 but it should be 35VAC after the energizing of STAB DATA GEN. If it is so then what i should do next???