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The rescue hook consists of one large hook, an adjacent small hook, and ring located at the bottom of both-hooks. A bearing assembly is attached to the upper section allowing the hook to rotate freely about its axis. The large hook supports 3,000 pounds and is used to hoist personnel. The smaller hook supports 1,000 pounds and is used to hoist equipment. The ring at the bottom supports 1,500 pounds and is also used to hoist miscellaneous equipment. Both hooks have a spring-loaded latch to prevent inadvertent release of personnel or equipment. (See figure 5-20.) The rescue hook is attached to the hoist cable and is used to assist rescue personnel in performing rescue operations from a helicopter. The rescue hook can hoist personnel and/or equipment during both sea and land helicopter rescues. Maintenance The aircrewman's responsibility is to inform maintenance control if equipment has been immersed in salt water. Repairs or other actions required are performed by organizational-level maintenance or above. All rescue hooks get a calendar inspection upon issue and at intervals to coincide with the aircraft cycle. In no case shall the intervals between calendar inspections exceed 225 days. The calendar inspection consists of the following visual inspection: 1. Inspect for missing, bent, fractured or damaged components. 2. Check hardware for security of attachment, corrosion, wear, and ease of operation. 3. Check for sharp edges and projections. Cleaning Clean the rescue hook after every immersion in salt water. To clean the rescue hook, proceed as follows: 1. Clean devices with an acceptable cleaning agent. 2. Remove all foreign objects with lowpressure air. 3. Lubricate all moveable parts of the rescue hook. Wipe off excess lubricant with a clean, dry, lint-free cloth. 4. Return the rescue hook assembly to service. HOIST QUICK-SPLICE PLATE The hoist quick-splice plate is made of 1/4-inch aluminum, 6 5/8 inches in length by 3 inches wide. The corners are rounded off and holes are grooved in places where the hoist cable rests. A stainless steel clip, 1/32 inch thick, is attached to the plate with two, 5/32-inch steel rivets. A rescue hook is attached to the plate with thimbles, swaging sleeve, and a length of hoist cable. The distance between the rescue hook and the plate is 6 inches. (See figure 5-21.) The hoist quick-splice plate is used when the hoist cable is cut or broken during a rescue operation. It is used when time is a factor and no other means are available for rescue.
Figure 5-21.-Hoist quick-splice plate. Maintenance The aircrewman's responsibility for maintenance of the hoist quick-splice plate is limited to giving it a freshwater wash. Repairs or other actions are performed by organizational-level maintenance or above. All hoist quick-splice plates are given a calendar inspection upon issue and at intervals of 225 days. The calendar inspection consists of a visual inspection for bends, corrosion, sharp edges, and projections. Cleaning You have to clean the hoist quick-splice plate after every immersion in salt water. To clean it, proceed as follows: 1. Clean with an acceptable cleaning agent. 2. Dry with a lint-free cloth. |
 
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