Plea from Travis Museum

Hello, I am the Restoration Coodinator at TAFB Museum. We have to remove the Fire Bottles from our C133A. We have the manual and did find the CPU bottles but cannot find the eng. bottles. The manual says that they are in #2 & #3 pylons. We opened up the access panels aft of the eng. bulkhead but could not find them. Anyone out there that could direct us to where they are located would be a great help..... TX