Life Preservers Flashcards
What mechanically inflates each cell of a life preserver?
A 28g CO2 cylinder.
How are FLU-9/P actuators activated?
Automaticly
What are the four types of life preserver inspections and the two tests?
Preflight/screening, initial installation, special, periodic.
Functional, leakage.
What is a screening inspection?
Visual inspection without opening.
When is a special inspection warranted?
When circumstances lead you to think its serviceability is questionable, or when an issue during a function test involves inflation assembly.
What percent of life preservers is tested?
5%
How often may any one life preserver be functionally tested?
No more than once a year.
During which inspection task do you weigh the CO2 cartridge?
Leak test.
During the inspection, describe what is done to any survival items that might be installed.
Inventory/inspect them.
How many and what size CO2 cartridges are located in the LPU-10/P?
1 28g cartridge per cell
What is the correct angle for the clip to engage in the buckle on the waist strap of the LPU-10/P?
90 degrees
What special inspection do you perform on cells that have hook and pile tape cemented directly to the cells?
10-12 lb pull test.
What items are you looking for when you remove the cap nut from the inflator?
Cross thread, valve core in stem, presence/condition of inflator gasket.
What is the correct inflated PSI for the start of a leak test on the LPU-10/P?
2 PSI
What position must actuation levers be placed in prior to installing serviceable CO2 cartridges?
Closed.
When do you preform a functional test on a LPU-38/P?
Before put in service/ every 4th periodic.
What is the service life of the FLU-9 B/P batteries?
3 yrs from DOM.
How do you tell whether an FLU-9 B/P inflator has automatically fired?
Presence of pin in fire indicator port.
Describe how you install the batteries into the FLU- 9 B/P.
+ 2 + & - 2 -, re-install kapton sleeve and screw sensor plug in finger tight.
What is the acceptable voltage reading for the battery test?
12.0 VDC or higher.
What do you do if you get a 0 voltage reading.
Check for proper battery installation.
What do you use to safety tie the inflator manual lever of the FLU-9 B/P?
24/4 or 16/4 surgeons single overhand locking knot.
During leakage test of the LPU-38/P what must the pressure be for each life preserver bladder?
No less than 2.5 PSI.
Explain the process if the correct pressure is below 2.5 PSI.
re-inflate.
Where do you stencil the inspection data on the LPU-38/P cell?
Back of the yellow bladders.
How do you route the cartridge retainer strap?
Around inflator assembly between the cell and the cell protector.
What type of chord and knot do you use to attach the cell to the container?
Type 1 300 lb braided nylon with square and locking knot.
Where do you position the cell protector?
Between cell and inflation assembly folded around inflation assembly before folding cell.
Where do you position the oral inflation valve prior to closing the container flaps on the LPU-10/P?
Center of container.
How do you position the ring on the oral inflation valve of the LPU-10/P when you finish folding the cell?
Closed.
IN what order do you close the flaps of the container?
Rear, bottom, top, front.
What type of thread and knot do you use to make the safety tie on the closure pin?
Size A nylon thread with surgeons and overhand knot.
What items may be needed to fold the LPU-38/P?
Packing aids, bean bags, zipper slides, and spring clamps.
For the LPU-38/P, on what side do you make the first fold?
Left side of the inflation cell assembly.
Where do you apply Vibra-TITE, and how long before installing it?
first 2 threads, let dry for 15 min.
Why does the waist strap buckle require a 90 degree angle to insert clip into slot?
Prevent advert opening during emergency.
How should the LPU-10/P shoulder adjustment straps be secured?
Through elastic keepers, up over shoulders, and through strap spacer.
How do you tack the LPU-38/P?
1 turn waxed 8/4 doubled with surgeons and locking knot.
What is the primary inflation on the adult/child preserver?
2 single inflators each with 16g CO2 cylinders.
What is the purpose of the 10 foot nylon lanyard.
Attach to D ring/ waist strap to keep kid.
What happens if you do not use deflation adapter to remove air from the A-A-50652 life preserver?
Air wont escape by just depressing mouth piece.
What components do you inspect during the survival items inspection?
Water activated light, whistle, sea die, life line.
Describe water activated light inspection.
Check lamp for continuity, and battery for voltage.
Where do you stencil the inspection data on the A-A-50652 life preserver cell?
Top left of either cell.
What is important to remember when packing the A-A-50652 oral inflation tubes.
Don’t cremp or smash while packing.
Where do you place the inflators when packing the A-A-50652 into container?
bottom of container.
What type of inspection is made by the crew member which the life preserver is assigned?
Preflight.
What is the biggest acceptable hole, cut, tear, ect.?
1/2 in.
What is the max number of patches?
2
What is the allowed overlap of patches covering damage on life preserver?
1in.
What cement must be used to secure patches to the cells of an LPU-10/P preserver?
MIL-A-5540
