Dimpled F-1201P firewall spacers, corresponding screw holes in F-1201A upper firewall & nutplate Riveted nutplates as called out Machine countersunk F-1201H upper firewall doubler for nutplate rivets Dimpled upper firewall doubler & upper firewall for #8 screws Riveted nutplates & 1201H upper firewall doubler to upper firewall as called out Clamped & match drilled F-1201J & K cowl hinges, disassembled & deburred Machine countersunk upper firewall doubler Clecoed cowl hinges to upper firewall doubler & riveted as called out Dimpled & riveted nutplates to upper firewall as called out Riveted nutplates to F-1201R antenna shelf Riveted antenna shelf to upper firewall
Riveting nutplates & upper firewall doubler to upper firewall
