Completed step 4 page 21-10 – separated F-1203B bulkhead flange parts per Figure 2. Completed step 5 – separated the F-1203D stub spar receptacle supports per Figure 3. Deburred and primed parts. Completed step 7 – per detail A drilled the 5 – 1/8holes to 7/16 (3 places) and ¾ (2 places). Removed hatched area of the 7/8 hole making it completely circular on F-1203A bulkhead. Worked on deburring of holes and edges on the F-1203A bulkhead.
