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Figure 5-19.Rescue harness
HOIST QUICK-SPLICE PLATE

Aircrew Survival Equipmentman 2 - Aviation theories and other practices
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b. Place a piece of full-range test paper on the dampened area. Compare it to the color standard provided with the paper. The color it changes to indicates the approximate pH reading and which specific short-range test paper to use. c. Place the short-range test paper on the dampened area. Its color indicates the pH factor of the affected area. d. If acid contamination is found, the assembly must be considered nonrepairable and scrapped. e. If alkaline contamination is found, rinse the assembly in cool, fresh water until a safe read- ing is obtained. All fabric and webbing must then be carefully inspected for any sign of deteriora- tion. 3. Visual inspection. To inspect the rescue harness, examine the following: a. Harness webbing for cuts, tears, fraying, deterioration, and security of stitching. b. Front pouch and right and left pockets for cuts, tears, fraying, deterioration, and security of stitching. c. Gated D-ring and all other hardware for corrosion, distortion, sharp edges, security of attachment, and ease of operation. d. Hook and pile tape fasteners for condition and proper mating. Cleaning Clean the rescue harness as often as necessary to remove perspiration stains, dirt, and other stains that may degrade performance of the assembly. To clean a rescue harness, proceed as follows: 1. Wrap all metal fittings in heavy flannel cloth. CAUTION DO NOT SCRUB RESCUE HARNESS. 2. Soak the assembly in cool, fresh water for 2 to 3 hours to loosen any set stains. 3. Drain this water and immerse the harness in a tub of fresh water (not over 120°F). Gently agitate by hand. 4. After 5 to 10 minutes of agitating, repeat step 3. 5. Petroleum and other stubborn stains may be removed by repeated applications of a mild soap and water solution. Each application must be followed by a rinse in cool, fresh water. 239.409 Figure 5-20.—Rescue hook. 6. Hang the rescue harness on a wooden hanger until dry. RESCUE HOOK 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 rescues. Maintenance The aircrewman’s responsibility is maintenance control if equipment helicopter to inform has been immersed in salt water. Repairs or other actions required are performed by organizational-level maintenance or above. 5-20







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