14.7.1 Such means as are necessary should be provided
                           to enable the operating crew to communicate between and have access
                           to each other and with other occupants of the craft in both normal
                           and emergency conditions. Attention is drawn to 2.4.2(b).
                           
                        
                        
                        
                      
                     
                     
                     
                        
                        
                         
                           14.7.2 Provision should be made for means of communication
                           between the position from which the craft is navigated and spaces
                           where essential machinery and arrangements are accommodated, irrespective
                           of whether they are remotely or only locally controlled.