AC 20-64 CHG 1 Appendix 6 10/26/73 Page 37 88/S8600 CRACKS UNDER SKATE ANGLE AT ATTACHMENTS
• 88/58-620 REPAIR 88/S8-665 PREVENTIVE DOUBLER INSTALL NACELLE FILLET ATTACHMENTS WING UPPER SURFACE Reference W-7, page 12 W-10, page 14 W-25, page 22 FIGURE F-12.
Appendix 6 Page 38 AC 20-64 CHG 1 10/26/73 88/ S8-620
PLANK SPLICE SEALING 88/58-606
FUEL ACCESS DOOR
LAND CORROSION FIGURE F-13. WING UPPER SURFACE Reference W-8, page 12 W- 10, page 14
AC 20-64 CHG 1 Appendix 6 10/26/73 Page 39 50C24i0 DOUBLER INSTALLATION WITH FYTENSION AT PLANK 3 - 4 BECAUSE OF DANT 6 FIGURE F-14. WING UPPER SURFACE Reference W-9, page 14 W- 15, page 16
Appendix 6 AC 20-64 CHG Page 40 10/26/73 00/CR_61G DOUBLER INSTALLATION FILLET REMOVED 885B-665 DOUBLER INSTALLATION (IN PROGRESS) FIGURE F-15. WING UPPER SURFACE tererence W-9, page 14 N- 25, page 22
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