I've been unable to find any, readable, drawings showing the tank access covers, or which tanks had them.
Logically, only hard tanks, that extended above the waterline, would have them, Never ballast (soft) tanks. That would include After Trim Tank, Auxiliary Tanks, 1 & 2, Safety Tank, Collecting and Expansion Tanks. Probably Normal Fuel and Fuel-Ballast tanks.
I'm sorry I can't be of more help, good luck
Mike