Emergency and role equipment

FOR TRAINING PURPOSE ONLY Malaysian Institute of Aviation Technology

AJD21603 ROTORCRAFT SERVICING, MAINTENANCE & ROLE EQUIPMENT

WEEK 14:

EMERGENCY AND ROLE EQUIPMENT

SABRI OMAR 1


LESSON OBJECTIVE AND OUTCOME

OBJECTIVE:

– GAIN KNOWLEDGE ON THE PURPOSE OF EMERGENCY AND ROLE EQUIPMENT FITTED TO HELICOPTER

OUTCOME:

– DESCRIBE THE PURPOSE AND FUNCTION OF EMERGENCY AND ROLE EQUIPMENT FITTED TO HELICOPTER

© Allen Peter Diman 2


INTRODUCTION• IN THIS LESSON, WE WILL TOUCH ON THE TOPIC OF

SAFETY EQUIPMENT FIITED TO AIRCRAFT & HELICOPTER IN PARTICULAR. AMONG THEM ARE;

1. LIFE JACKETS2. LIFE RAFTS3. FIRST AID KIT & EMERGENCY AXE4. EMERGENCY FLOATATION EQUIPMENT.5. PORTABLE FIRE EXTINGUISHER6. FIRE AND SMOKE DETECTION SYSTEM



INTRODUCTION (CONT)WE WILL DISCUSS EACH OF THE ITEM IN THE FOLLOWING AREAS;

PRINCIPLE OF OPERATION

COMPONENTS

APPLICABLE MAINTENANCE ACTIONS

FOR ITEMS THAT YOU’VE COVERED IN OTHER SUBJECT SUCH AS A/C CABIN – THEY WILL BE PRESENTED FROM A HELICOPTER POINT OF VIEW.



LIFEJACKETSLifejackets or life vests are mandatory on airplanes travelling over water (in which case they consist of a pair of air cells (bladders) that can be inflated by triggering the release of carbon dioxide gas from a canister - one canister for each separate cell.

Or the cells can be inflated "orally" that is by blowing into a flexible tube with a one-way valve to seal the air in the cell



Some of the inflatable life jackets also react with the salt/fresh water, inflating them.

The latest generation of self triggering inflation devices, however, respond to water pressure when submerged and incorporate an actuator known as a "hydrostatic release".

Regardless of whether manually (pull cord) or automatically triggered, a pin punctures the cartridge/canister and the CO2 gas escapes into the sealed air chamber.

The air chambers are always located over the breast, across the shoulders and encircling the back of the head. They may be inflated by either self-contained carbon dioxide cartridges activated by the pulling of a cord, or blow tubes with a one-way valve for inflation by exhalation.



EXAMPLE OF CREW LIFEJACKET

Designed specifically for pilots and aircrew to be worn over flight suits, the MSV971 is an inflatable flotation cell integrated into a survival vest. Providing a full 37 lbs of buoyancy, the inflatable cell - available in manual inflation - is comprised of two independent chambers, separated by a fully integrated floating baffle system. This provides for an orally inflated reserve chamber in the event that the primary chamber becomes damaged. .



Each vest is lightweight - approximately 3 lbs unloaded - and contains specific pocket requirements for stowage of survival items such as rations or lights. It is made with a Nomex fire resistant cover and mesh for high durability. As well, each vest is integrated with a lifting harness for over-water rescue by helicopter, and contains a buddy line and SOLAS emergency whistle

Key Features:

1. Manual inflatable flotation cell

2. Survival vest contains specific pockets for stowage of survival gear

3. Made with Nomex fire resistant fabric and mesh

4. Dual chamber system for emergency oral inflation in the event of damage to one chamber

5. Integrated lifting harness

6. Waist and chest adjustment straps

7. Buddy-line and SOLAS whistle



MAINTENANCE OF

LIFEJACKETS

LIFE JACKETS WHICH HAVE BEEN USED FOR DEMONSTRATION SHOULD BE RETURNED AS IF THEY WERE TIME EXPIRED.CLEANING IS CARRIED OUT USING WARM WATER AND RECOMMENDED SOLVENT. LEAKS MAY BE DETECTED BY IMMERSION IN WATER

PRESSURE TESTING IS CARRIED OUT IAW MANUFACTURER'S INSTRUCTIONS WHICH TYPICALLY WOULD REQUIRE INFLATION TO A GIVEN PRESSURE THEN, AFTER SPECIFIED TIME, CHECKING THE PRESSURE HAS NOT FALLEN BEYOND LIMITS.

THIS IS FOLLOWED BY SIMILAR TEST INVOLVING A LONGER INFLATION PERIOD BEFORE CHECKING ANY PRESSURE DROP.



INSPECTION FOR CONDITIONWHILST INFLATED THE JACKET IS INSPECTED FOR DISTORTION AND DAMAGE AND ANY MARKING NECESSARY TO INDICATE DEFECTS MUST BE MADE USING WHITE CHALK ONLY.IF THE LIGHT IS OPERATED BY A DRY CELL, THE BATTERY MUST BE REPLACED EVERY 6 MONTHS.MANY ARE POWERED BY A WATER ACTIVATED CELL & HAVE AN INDEFINITE LIFE PROVIDED NO ACTIVATION HAS TAKEN PLACE DUE TO INGRESS OF WATER.



A VISUAL MEANS OF CHECKING THIS IS OFTEN PROVIDED.THIS TYPE OF CELL IS ELECTRICALLY TESTED BY CONNECTING A RESISTANCE TESTER ACROSS THE CELL TERMINALS & OBTAINING A SPECIFIED READING, E.G 5 MEGAOHMS MIN.ALL TYPES OF LIGHTS TOGETHER WITH THEIR CIRCUITS ARE CHECKED FOR CONTINUITY USING A SLAVE 1 ½ VOLT BATTERY.CO2 CYLINDERS ARE CHECKED FOR CORRECT CONTENTS BY WEIGHING AND ARE “LIFED” USUALLY 10 YEARS



FUNCTIONAL CHECKAFTER THE MAINTENANCE HAS BEEN COMPLETED THE JACKET SHOULD BE INSPECTED TO SEE THAT ALL EQUIPMENT HAS BEEN PROPERLY FITTED & THAT ALL AIR HAS BEEN EXPELLED.ON SOME TYPES THIS IS CARRIED OUT BT FITTING A DEFLATION KEY TO THE MOUTH VALVE; AFTER DEFLATION THE KEY MUST BE REMOVED.THE JACKET IS THEN FOLDED IAW MANUFACTURER'S MANUAL BEFORE PUTTING IT BACK INTO VALISE & SECURING THE FLAP.NEXT DUE INSPECTION MUST BE ATTACHED TO THE LIFE JACKET.

ALLEN PETER DIMAN 12


LIFERAFTS



INFLATED LIFERAFT



LIFERAFT



FEATURES

Manufactured from light-weight, high-visibility polyurethane proofed nylon fabric.A range of stowage options available to suit any situation.Fully reversible.Available in sizes 7, 10 and 14 person

All lines must be suitably stowed and secured to prevent entanglement during launching/inflation of a life raftMooring Line. A non-rotting mooring line at least 20 feet in length must be attached at one end to one end of the raft, with the remainder of the line held flaked to the carrying case. The mooring line must be capable of keeping the raft, loaded to maximum rated capacity, attached to a floating aircraft, and not endanger the raft or cause the raft to spill occupants if the aircraft sinks. The line may be equipped with a mechanical release linkage.


CONTENTS


LIFE RAFT LAUNCHING EQUIPMENT

A parachute ripcord grip and retaining pocket must form the primary inflation control.

The ripcord grip or the attached static mooring line must be provided with means for attachment to the aircraft.

If the ripcord grip is designed to attach to the aircraft, its strength may not be less than that of the static mooring line. The position of the ripcord grip must be standardized.

A sea anchor, or anchors, or other equivalent means must be provided to maintain the raft, with rated capacity and canopy installed, on a substantially constant heading relative to the wind and have the ability to reduce the drift to 2 knots in 17 to 27 knot winds


SEA ANCHOR


EMERGENCY INFLATION

Means readily accessible to occupants of the raft, must be provided to manually inflate and maintain chambers at minimum operating pressure. Manual inflation valves, with a non-return opening adequate for the size and capacity of the inflation means, must be located to permit inflation of all chambers. The location must take into consideration occupancy of each side of reversible raft.The inflation means and valves must have provisions to prevent inadvertent removal and loss when either stowed or in use.

The color of the liferaft's surfaces, including the canopy surface, visible from the air must be an International Orange-Yellow or an equivalent high visibility color.


LIFERAFT’S COLOUR


OTHER EQUIPMENTSLIGHTSGrasp Line. A grasp line, meeting the size and strength requirements for the lifeline, must be provided with sufficient slack for use by liferaft occupants to steady themselves when seated an the liferaft deck with their backs to the main flotation tube(s). PADDLESURVIVAL PACK THAT INCLUDE RATIONSSURVIVAL INSTRUCTIONFIRST AID KIT



HELICOPTER FLOATATION SYSTEM



WEIGHT OF THE MRH/MGB CAUSED THE AIRCRAFT TO TOPPLE


OPERATION OF THE HELICOPTER FLOATS


HELICOPTER FLOATATION SYSTEMHELICOPTER FLOATATION IS DESIGNED TO ASSIST THE HELICOPTER TO FLOAT IN THE EVENT OF WATER DITCHING.IT'S BASICALLY CONSISTS OF 3 COMPONENTS: FLOAT BAG, FLOAT BOTTLE & CONTROL SWITCHFLOATATION SYSTEM IS MANDATORY IF THE HELICOPTER IS REQUIRED TO FLY OVER THE WATER FOR CERTAIN NAUTICAL MILES. THIS REQUIREMENT CAN BE FOUND IN THE MCAR.WILL NOT AFFECT OTHER COMPARTMENTS.NORMALLY MADE FROM URETHANE COATED NYLON,THE FLOAT BAG IS NORMALLY MANUFACTURED INTO FEW COMPARTMENTS. IF 1 COMPARTMENT LEAK IT PROVISION TO INFLATE THE FLOAT BAG MANUALLY FOR LEAK CHECKING MAINTENANCE.THE FLAOT BAG CAN BE PERMANENTLY ATTACHED OR ARE FITTED AS REQUIRED BASIS.



FLOAT BOTTLE

FLOAT BOTTLEFLOATATION SYSTEM USUALLY USE HELIUM GAS AS A MEDIUM OF INFLATION.THIS GAS IS USUALLY STORED IN INDIVIDUAL BOTTLES FOR LH & RH RESPECTIVELY.INFLATION TIME: 2 TO 3 SECONDS.MAINTENANCE: WEIGHING, VISUAL & HYDROSTATIC TEST.

ACTIVATION SYSTEMFLOATATION SYSTEM CAN BE ACTIVATED MANUALLY AS WELL AS ELECTRICALLY.MANUAL SWITCH IS NORMALLY LOCATED AT CYCLIC STICK WHILE THE ELECTRICALLY ACTIVATED SWITCH IS NORMALLY LOCATED AT COLLECTIVE LEVER.MAINTENANCE: CHECK THE PYROTHECNIC SWITCH AT SPECIFIC INTERVALS.


HOW IS IT BEING ACTIVATED?


ACTIVATION SWITCH AD HANDLEACTIVATION SWITCH AD HANDLE



EUROCOPTER AS 355 EMERGENCY FLOATATION SYSTEM OVERVIEW


AFTER DITCHING, THE EMERGENCY FLOATATION SYSTEM IS DESIGNED TO MAINTAIN THE AIRCRFAT AFLOAT THUS ENABLING THE EVACUATION OF CREWMEMBERS & A/C RECOVERY

THE INSTALLATION CONSISTS OF FLOAT ASSEMBLIES, SECURED LATERALLY TO THE LANDING GEAR SKIDS & FITTED WITH AN INFLATION SYSTEM & A CONTROL UNIT

EACH FLOAT ASSEMBLY COMPRISES:

A SUPPORT CONSISTING OF A TIGHT TUBE, USED AS MANIFORD.

A CASING FOR FLOAT LANDING GEAR (DEFLATED & INFLATED)

FLOAT LANDING GEAR SECURED TO THE SUPPORT. THE FLOAT IS DIVIDED INTO 5 INDEPENDENT COMPARTMENTS.

A LANDING GEAR REINFORCEMENT STRUT


A BOTTLE (INFLATED WITH HELIUM) HELD BY CRADLES BENEATH THE FLOOR OF EACH LATERAL BAGGAGE COMPARTMENT.

THE BOTTLE IS FITTED WITH AN ELECTRICALLY-CONTROLLED HEAD COMPRISING A PRESSURE GAUGE, A FRANGIBLE SAFETY DISK, A FILING VALVE & AN OPTIONAL FIRING MECHANICAL CONTROL.

INSTALLATION CONTRO SYSTEM CONSISTS OF:

1. A PUSH-BUTTON (ARMING SWITCH)

2. PUSH-BUTTON ON PILOT-COLLECTIVE LEVER TO FIRE THE CARTRIDGE.

3. WIRING ASSEMBLY

4. DUAL POWER SUPPLY


FLOAT LANDING GEAR/FLOAT BAG

ARMING SWITCH

ACTIVATION SWITCH ONCOLLECTIVE LEVER


SUPPORTCASING REINFORCINGSTRUT

SUPPORT

CASING

FLOAT BOTTLE


FIRST AID KIT

NO DCA APPROVAL RQD.ROLLER BANDAGES, TRANGULAR BANDAGES, ADHESIVE PLASTER, ABSORBENT GAUZE, COTTON WALL (OR WOUND DRESSINGS IN PLACE OF THE ABSORBENT GAUGE & COTTON WOOL) BURN DRESSING, SAFETY PINS.

HAEMOSTATIC, BANDAGES OR TOURNIQUETS, SCISSORSANTISEPTICS, ANALGESIC AND STIMULANT DRUGS,SPLINTS & HANDBOOK OF FIRST AID KIT,

NORMALLY INSPECTED EVERY 12 MONTHS FOR CONDITIONS AND ANY EXPIRY ITEMS.



CONTENTS OF FIRST AID KIT

Emergency and role equipment

Engineering

Transcript of Emergency and role equipment