Danoo Posted July 5, 2014 Share Posted July 5, 2014 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??? Quote Link to comment Share on other sites More sharing options...
munirabbasi Posted July 7, 2014 Share Posted July 7, 2014 Contact to BTS Quote Link to comment Share on other sites More sharing options...
Danoo Posted July 11, 2014 Author Share Posted July 11, 2014 Enjoy in BTS Quote Link to comment Share on other sites More sharing options...
tinyclark Posted July 12, 2014 Share Posted July 12, 2014 Sounds like a bad ECA to me. Quote Link to comment Share on other sites More sharing options...
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