- Cut out doubler for mounting dual GSU-25 ADAHRS (air data, attitude and heading reference system) to sub-panel.
- Drilled and deburred doubler and subpanel for ADAHRS, rivets and platenuts.
- Drilled left sub panel for pitot, aoa, and static air lines to supply ADAHRS. Also drilled a few large wiring pass through holes on both sub panels.
- Drilled back up electrical bus bar to forward cockpit deck.
Backup electrical bus location:
GSU-25 in position on doubler and subpanel:
Working on doubler:
