The air conditioning panel was located on the bulkhead aft of the crew door.
Three main fuel cells are installed aft of the cabin bulkhead and two feed cells are under the cabin floor.
The aft compartment extended from the wing rear beam to a point forward of the aft pressure bulkhead of the fuselage.
Eventually I settle for entering the aft hold and follow the propshaft tunnel forward to the engine-room bulkhead .
I had assumed this to be from the deck above, but on reflection it could easily have been the bulkhead separating the stoke hold from the coal bunkers.
To their credit the builders have used bulkheads that are watertight between the hull and cabin soles to divide the boat into three separate compartments.
Improper support can cause the hull to distort, causing cracked bulkheads , engine misalignment or broken stringers.
The engine room, its bulkheads and ballast tanks were flooded and its starboard decks were awash.
One industry source said that the airlines and the two big manufacturers Boeing and Airbus will discuss fixing bulletproof barriers to bulkheads , separating the pilot's cabin from the rest of the plane.
As the students repair leaks from damaged bulkheads the hull can be progressively flooded with water and rolled through 20 degrees, just like a ship at sea.