10.18.7 The following tests and inspections should
                           be carried out weekly:
                        
                        
                        
                        
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                                 .1 all survival craft, rescue boats and launching
                                 appliances should be visually inspected to ensure that they are ready
                                 for use. The inspection should include, but not be limited to, the
                                 condition of hooks, their attachment to the lifeboat and checking
                                 that the on-load release gear is properly and completely reset;
                              
                              
                              
                            
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                                 .2 all engines in lifeboats and rescue boats should
                                 be run ahead and astern for a total period of not less than 3 min,
                                 provided the ambient temperature is above the minimum temperature
                                 required for starting and running the engine. During this period of
                                 time, it should be demonstrated that the gear box and gear box train
                                 are engaging satisfactorily. If the special characteristics of an
                                 outboard motor fitted to a rescue boat would not allow it to be run
                                 other than with its propeller submerged for a period of 3 min, a suitable
                                 water supply may be provided;
                              
                              
                              
                            
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                                 .3 lifeboats, except free-fall lifeboats, should
                                 be moved from their stowed position, without any persons on board,
                                 to the extent necessary to demonstrate satisfactory operation of launching
                                 appliances, if weather and sea conditions so allow; and
                              
                              
                              
                            
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                                 .4 the general alarm system should be tested.