Expanded the seat pan slot for the Co-pilot crotch strap and added nutplates to the ribs. Miatch-drilled the aft (F-7117B) to ribs.
Trimmed the pilot and co-pilot slots to final shape and deburred the seat pan edges.
Match-drilled the pilot seat pan for all the nutplates (both ribs and F-7117A/B components. Match-drilled f-7117B (modified) together. Riveted with AN470AD4-4 for angles. Enlarged crotch strap buckle anchor (hole for AN5-x bolt).
