AC 20-64 CHG 1 10/26/73 Appendix 6 OUTBO 88/58-633 WING ATTACH FITTING INSPECTION DE-BURR ACCESS HOLES CRACK FIGURE F-24. WING INTERNAL STRUCTURE Reference W-16, page 18
AC 20-64 CHG 1 Appendix 6 10/26/73 FRON 88/SB-638 NACELLE ATTACH, PLATE INSPECTION. PLATES, LOWER SURFACE, INB. AND OUTS. INBOARD NACELLE 167 88/SB-670 REMOVE BOLTS FOR WEB AND SPAR CAP CRACK INSPECTION .
FIGURE F-25. WING EXTERNAL STRUCTURE Reference W-18, page 18 W- 27, page 24
AC 20-64 CHG 1 Appendix 6 10/26/73 Page 51 88/SB-670 REMOVE BOLTS FOR WEB AND SPAR CAP CRACK INSPECTION
NACELLE ATTACH PLATE INBD 88 / 58-638 NSPECTION 88/5B-682 REMOVE BOLTS WEB AND SPAR FRONT SPAR CK FIGURE F-26. WING EXTERNAL STRUCTURE Reference W-18, page 18 W-27, page 24 W- 31, page 26
AC 20-64 CHG 1 Appendix 6 10/26/73 88/58-639
MLG RIB FOOT CRACK (TYPICAL CRACK IN RADIUS) 88/SB-503 (REFERENCE)
MIG RIB FOOT ANGLE REINFORCEMENT
FACTORY INSTALLED
MAIN LANDING GEAR RIB
UPPER SURFACE PLANK *4
DOME RIB W. S. 155
COSTILLA E DOMO FIGURE F-27. WING INTERNAL STRUCTURE Reference W-19, page 18
AC 20-64 CHG 1 Appendix 6 10/26/73 Page 53 88/SB-652 INSPECT THESE AREAS FOR CRACKS FROM RIVET HOLES
OUTBOARD NACELLE PLANT
ATFACHMENTS AT NACELLE FILLET INBOARD NACELLE 88/SB-649 FIGURE F-28. WING UPPER SURFACE Reference W-20, page 20 W- 21, page 21
Appendix 6 AC 20-64 CHG 1 Page 54 10/26/73
INBD NACELLE AREA 88/58-669 PORTION OF INSPECTION AREA 88/S8-653 CRACKS AT ATTACHMENTS THRU THIS AREA PLANK 12 FWD FIGURE F-29. WING LOWER SURFACE Reference W-22, page 20 W- 26, page 24
AC 20-64 CHG 1 10/26/73 Appendix 6
CENTROID RISERS (REF) SKATE ANGLE (REF) 88/58-669 CLEAN AND INSPECT LOWER SURFACE BETWEEN WS 157 AND WS 219 PLANK * 4 PLANK / 3 PLANK 71 FIGURE F-30. WING LOWER SURFACE Reference W-26, page 24
Appendix 6 AC 20-64 CHG 1 Page 56 10/26/73 88/SB-675 INSPECT FOR CRACKS INBOARD AND OUTBOARD OF SKATE ANGLES ACROSS PLANKS 2, 3, AND 4
SKATE ANGLES INBORAD NACELLE
INBOARD, FIGURE F-31. WING UPPER SURFACE Reference W-28, page 24
AC 20-64 CHG 1 10/26/73 Appendix 6 PLANK 49 FWD PLANK 48 ne 15008 1304 THROWE PLANK 47
• FILLET ATTACH HOLES CORROSION INSPECT BOTH SIDES OF SPLICE FROM PLANK #1 THRU
FUSELAGE · 3 FIGURE F-32. WING UPPER & LOWER SURFACE Reference W-30, page 26