Brief Description: F1204D center section aft bulkhead
Completed step 2 page 20-03. Aligned the F-1204D center section aft bulkhead to F-1204 center section assembly while being clecoed to the F-1276 bottom skin. Match drilled #30 73 holes per Figure 1. Drilled 2 - #11 holes in two places per Figure 3 – page 20-04.
