AC 20-64 CHG. 1 Appendix 6 10/26/73 Page 41 88/52-62 WING PLANK SPLICE REPAIR AND SPLICE GAP SEALING ·8D FIGURE F-16. WING UPPER SURFACE Reference W-10, page 14
Appendix 6 AC 20-64 CHG 1 Page 42 10/26/73
TILLET ATI
HOLES (REF FIGURE F-17. WING UPPER & LOWER SURFACE Reference W-10, page 14 w-30, page 26
AC 20-64 CHG 1 Appendix 6 10/26/73 Page 43 88/SB-620 88/SB-685 INSPECT FOR CORROSION AROUND FASTENER HEADS AT PLANK SPLICES - FIGURE F-18. WING UPPER & LOWER SURFACE Reference W-10, page 14 W- 32, page 26
Appendix 6 AC 20-64 CHG 1 Page 44 10/26/73 88/SB-625 DOUBLER INSTALLATION LOWER SURFACE INBOARD NACELLE INSPECT THE LOWER SURFACE AT INBOARD NACELLES. IN PARTICULAR LOOK FOR CRACKS AT M. L. G. RIBFEET 98/58-669 FASTENERS PLANK + 5 FIGURE F-19. WING LOWER SURFACE Reference W-11, page 14 W- 26, page 24
AC 20-64 CHG 1 Appendix 6 10/26/73 Page 45 PLANK * 8 LOOK FOR EXTERNAL AND INTERNAL CORROSION AROUND HOLE. INTERNAL EXFOLIATION TYPE CORROSION EXPERIENCED ON WETBAY 88/SB-628 CENTROID RISER CAVITY JACKPAD HOLE AIRCRAFT.
PLANK # 7
OUTBO - FIGURE F-20. WING LOWER SURFACE Reference W-12, page 16
Appendix 6 Page 46 AC 20-64 CHG 1 10/26/73 J INBD REAR BEAM CLIP W. S. 17? AND 197 UPPER SURFACE 88/58-654 INSPECTION (TYPICAL)
CRACK TYP
REAR SPAR 88/SB-630 MLG RIB INSPECTION FIGURE F-21. WING INTERNAL STRUCTURE Reference W-13, page 16 W- 23, page 20
AC 20-64 CHG 1 Appendix 6 10/26/73 88/SB-631 CRACKS AT FUEL SIGHT GAGE (TYPICAL MLG DRAG STRUT FITTING DRY BAY AIRCRAFT HAVE COVER INSTALLED INSTEAD OF SIGHT GAGE. SAME POSSIBILI- TY OF CRACK (S) EXIST WS 193 NOTE, PLANK FIGURE F-22. WING LOWER SURFACE Reference W- 14, page 16
Appendix 6 AC 20-64 CHG 1 Page 48 10/26/73 WS 266 SIGHT GAGE 100 TO 1000 GALS
FUEL QUANTITY RANGI PULL OUT UNTIL BRIGHTNESS IN END OF STICK SUDDENLY DARKENS 88/SB-631
FUEL SIGHT GAGE OPENING
CRACK IN LEAP DOUBLER
FWD TO REPLACE EXTEND, FULLY BEFORE REMOVAL SLIP TUBE PLANK # 4 OUTBD G 0g0.
FIGURE F-23. WING LOWER SURFACE Reference W-14, page 16
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