Check alignment and clearances for part 13 (support for Part 1 (left bulkhead) and Part 2 (left air inlet floor)), mark the locations for the platenut screw holes on the left air inlet floor (Part 2) and drill for now the holes #40. Reinstall Part 13 and Part 2 on the engine and match drill the previously drilled holes in Part 13. Install the platenuts.
