waist lobe is equipped with a snap hook. The left lobe is equipped with a D-ring. The snap hook and D-ring are used to secure the waist lobes together after inflation. Each collar lobe is equipped with a snap hook for attachment to the survival vest. Casing Assembly The casing assembly is constructed of rubber-coated nylon cloth and protects the flotation assembly.  The  casing  assembly  consists  of  the adjustable casing, an adjustable webbing belt, and the front connector assembly. The webbing belt keeper loops retain the webbing belt. They also allow attachment of the survival vest around the wearer's waist. Survival Item Pouches The survival item pouches attach to the lower casing assembly with snap hooks. The pouches contain two dye markers and two Mk 13 Mod 0 or the Mk 124 (day/night) distress signal flares. Carrying the survival item pouches is optional; however, when the pouches are not used, the dye markers and flares will be contained in the SV-2 series survival vest. FLIGHT DECK INFLATABLE LIFE PRESERVER The flight deck inflatable life preserver (fig. 11-17) is NOT a piece of aviation survival equipment. It must NEVER be substituted for an LPP or LPU life preserver. The flight deck inflatable life preserver is worn by all flight deck, aviation maintenance, and ordnance personnel. This preserver is mandatory flight deck safety equipment. The flight deck inflatable life preserver is a two-piece unit that consists of a single-compartment inflatable bladder and a cloth outer garment. The inflatable bladder is inflated by pulling the toggled lanyard that is attached to a dual CO₂  inflation assembly or by an oral inflation tube. Overinflation is prevented by a pressure-relief valve diaphragm. The bladder will support 29 pounds of buoyancy. The cloth outer garment is constructed of cotton fabric. It is available in a variety of colors used to identify the carrier/flight deck personnel occupational fields. Cloth reflective tape is sewn to each shoulder area to aid in the location of a wearer at night. Each vest is equipped with pouches that contain a distress light marker, whistle, and sea dye marker. The  shipboard  Planned  Maintenance  System (PMS) contains maintenance and inspection requirements  for  the  flight  deck  inflatable  life preserver. Q11-8. How many ways can the LPP life preserver be inflated? Q11-9. How many pounds of buoyancy will the flight deck life preserver support? Q11-10. What is the purpose of the different colors for the flight deck life preserver? LIFE RAFTS LEARNING OBJECTIVE: Identify the types of life rafts and common survival kit items. Naval aircraft that make operational flights over water are required to carry enough life rafts to carry all the assigned crew plus passengers. Life rafts are manufactured in various sizes and configurations to meet the demands of all types of aircraft. Pneumatic life rafts are compact assemblies that can be stowed in a small area. They should be stowed so they are easy to get to, preferably near an emergency exit. Never stow a life raft under other equipment or cargo or near batteries. Protect them from sources of heat such as heaters, engines, auxiliary power units, and electronic tubes. If the aircraft flight manual designates a storage place for rafts, this space should be used. Whenever possible, stow rafts in the same places in all aircraft of the same model. This allows new crewmen to know the location of the rafts, and thus avoid confusion in the event of a ditching situation. 11-12 ORAL INFLATION TUBE ANf1117 REFLECTIVE TAPE CO INFLATION ASSEMBLY 2 SEA DYE MARKER STROBE LIGHT Figure 11-17.—Flight deck life preserver.