Drop the mast
Sorry for the delay, but we just returned from a week on Lake Erie.As a profesional firefighter/paramedic and former rope/vertical rescue instructor, I have no problems with hights or working on ropes. However, when given the choice between going aloft while someone who may not be used to doing so holds my life by the rope in their hands, on equipment that may be aging, worn, exposed to deteriorating sunlight for prolonged periods, and otherwise abused, or taking an hour & half to drop the mast and work in comfort and safety, I would choose the later.We keep our 23.5 on the trailer, so stepping and unstepping the mast everytime we sail is routine. It takes us about 30 minutes to rig and 45 to unrig and prep for towing. Dropping the mast for such a repair should not be a problem.While you are repairing the light, you might as well check the conntacts for corrosion and the wiring at the top of the mast for cracked and dried out insulation. I've found that the contacts both on the bulb holder and at the deck plug to be more of a problem than blown bulbs.Rob"Kinship"