Brief Description: Started service bulletin rework activity
Completed steps 5-10 of service bulletin. Airplane is still under construction so portions related to inspections for cracking due to flight are not applicable. I did look to see if there were any signs of cracks and found none.
Step 5: Using the dimensions in Figure 8 marked then center punched the six AN426 rivet locations shown into the WD-1207 Stabilator Horn. Step 6: Loosened the aft two bolts attaching the WD-1207 Stabilator Horn to the Stabilator Assembly. Centered the HS-01232 Stabilator Horn Doubler beneath WD-1207 per Figure 8. Step 7: Match-Driledl #30 and clecoed the HS-01232 Stabilator Horn Doubler shown in Figure 8 to the HS-1211 Spar Cap. Step 8: Drilled #40 the six locations marked on the WD-1207 Stabilator Horn into the HS-01232 Stabilator Horn Doubler and HS-1211 Spar Cap. Marked the top face and orientation of the HS-01232. Removed WD-1207 and HS-01232. Cleaned any drill shavings from between the parts. Machine countersunk the six #40 hole locations on the bottom face of the HS-01232 for the rivets called out in Figure 8. Step 9: Riveted the HS-01232 to the WD-1207 and set aside. Step 10: Repeated Steps 5-9 for the WD-1208 Stabilator Horn and remaining HS-01232.
