Brief Description: QB Inspection Section 13 Main Spar
1342 - 1542
QB wings were purchased.
Verified every step referenced in the slow build wing plans, Section 13.
Noted fhe following steps incomplete:
13-3.9 Enlarge 9/32" hole in spar web and install snap bushing.
This pass through hole is for the stall warning wiring, installed rubber grommet in original 9/32" hole.
13-4.6 Drill and tap the AEX Tie Down for 3/8"-16 threads reference wing tie down ring.
Enlarge hole in skin to 1/2" for hole clearnce., debur and smooth. Final drill AEX using 5/16" bit, prep for thread cutting. Tap AEX 3/8"-16 to a depth of 1 1/4".
13-5.1 Run 1/4" drill through large single hole in aileron bellcrank bracket.
As these brackets are installed and have minimal drill clearance, removed brackets. Final drill required holes using 1/4" drill. Install brackets, torque AN3 bolts to 23 in/lb, apply torques seal, 8x.