Clecoed aft deck and spacers in place. Bolted F-812B-1 angle/control stop to rear deck. Rivet on the aft deck. Rivet F-818D-1 bellcrank rib to F-818 L & R baggage ribs. Cut and edge finished F-877B-1 battery tray angles. Edge finished F-877A-1 battery tray. Clecoed and match drilled angles to the battery tray. Match drilled all remaining #30 and #40 holes for battery tray.