jonmazz Report post Posted June 14, 2017 Good afternoon, the problem is on an 1966 HC-130P acft. We are unable to get the #2 compass within 6 degrees of the #1 compass and the INU. We have replaced every component in the system at least twice, have re-wired the power and directional wires from the flight deck to the terminal board inside the #2 RH leading edge section, and the power wires from the terminal board to the azimuth. Duruing our compass swings, we are very close to not needing adjustment on the east to west alignment on the compensator. However, the north to south adjustment is maxed out. Have been battling this issue for a few months so any help would be great! Share this post Link to post Share on other sites
tinyclark Report post Posted June 17, 2017 Do you have a flux valve simulator? If so, what does it do when connected into the system? Were the new flux valves from a depot repair facility, or did they have serviceable tags on them from a mod team. Years ago, there were many flux valves turned in by mod teams that were not serviceable. Any chance a ferrous screw or nut is installed around the flux valve, like on the connector backshell? Was there maintenance performed around the wing tip area before this started? Share this post Link to post Share on other sites
jonmazz Report post Posted June 20, 2017 Just found an improper repair that was done with ferrous rivets. Will update after we fix the issue. Share this post Link to post Share on other sites
tinyclark Report post Posted June 20, 2017 Hopefully that will do it. Share this post Link to post Share on other sites
jonmazz Report post Posted July 20, 2017 That did it! Thank you! Share this post Link to post Share on other sites
tinyclark Report post Posted July 21, 2017 No sweat. I've seen it before. We even had a whiskey compass error that was caused by a ferrous screw in the window frame. Share this post Link to post Share on other sites
