ECMM_256914_Emergency Float

2 rue Maurice Mallet – 92130 Issy les Moulineaux – France Tel: + 33 1 41 23 23 23 – Fax: + 33 1 46 78 74 79 http://www.zodiacaerospace.com CAGE Code: F6101

EMERGENCY FLOTATION SYSTEM P/N : 200553-0

COMPONENT MAINTENANCE MANUAL WITH ILLUSTRATED PARTS LIST

This document is AERAZUR’s property. It can neither be copied nor divulged without AERAZUR’s consent.

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T-1 REV 12

AERAZUR COMPONENT MAINTENANCE MANUAL EMERGENCY FLOTATION SYSTEM

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T-2 REV 12

AERAZUR COMPONENT MAINTENANCE MANUAL EMERGENCY FLOTATION SYSTEM

RECORD OF REVISIONS MANAGEMENT OF REVISIONS: • Revision number and validity: Revision 01 Ö Revision 02 to 09Ö Revision 10 Ö Ö Revision 11 Revision 99 Ö •

Initial project distribution Project updating First distribution of manual First revision of manual 89th revision of manual

Keep this list at the beginning of the manual. When receiving a revision, insert the modified pages in the existing manual, record the revision number; write the date and the manager’s initials.

REVISION REVISION CHECKED NUMBER DATE BY REV 10 REV 11

11/81 04/08

REV 12

03/10

DESCRIPTION OF REVISION

DPG/JCL Original issue. DSE/ NFE Re-issue and complete revision of the manual. Application of ECN 00017A. “Routine inspection” precisions. DSE Addition of pressure relief valve test to section INSPECTION/CHECK

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INSERTIO BY N (INITIALS) DATE

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RR - 2 REV 12

AERAZUR COMPONENT MAINTENANCE MANUAL EMERGENCY FLOTATION SYSTEM

SERVICE BULLETIN RECORD Service bulletins

Insertion in revision number

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AERAZUR COMPONENT MAINTENANCE MANUAL EMERGENCY FLOTATION SYSTEM

LIST OF EFFECTIVE PAGES SECTION TITLE

Record of Revisions

PAGE

REV No

T-1 REV 12 Inspection/Check T-2 REV 12 RR-1 REV 12 RR-2 REV 12

Service Bulletin Record

SBR -1 REV 11 SBR -2 REV 11

List of Effective Pages

LEP-1 REV 12 LEP-2 REV 11

Table of Contents

Glossary of Abbreviations

Table of Vendor Codes

Description and Operation

TC-1 REV 11 TC-2 REV 11 Repair GA-1 REV 11 GA-2 REV 11 TVC-1 REV 11 TVC-2 REV 11 1 2 3 4 5 6 7 8 9 10

REV 11 REV 11 REV 11 REV 11 Assembly (Including storage) REV 11 REV 11 REV 11 REV 11 REV 11 REV 11

Charging/Discharging

201 REV 11 202 REV 11

Disassembly

301 REV 11 302 REV 11

Cleaning

401 REV 11 402 REV 11

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SECTION

PAGE

REV No

501 502 503 504 505 506 507 508 509 510 511 512

REV 11 REV 11 REV 11 REV 11 REV 11 REV 11 REV 11 REV 12 REV 12 REV 11 REV 11 REV 11

601 602 603 604 605 606 607 608 609 610

REV 11 REV 11 REV 11 REV 11 REV 11 REV 11 REV 11 REV 11 REV 11 REV 11

701 702 703 704 705 706 707 708 709 710 711 712 713 714 715

REV 11 REV 11 REV 11 REV 11 REV 11 REV 11 REV 11 REV 11 REV 11 REV 11 REV 11 REV 11 REV 11 REV 11 REV 11

LEP - 1 REV 12

AERAZUR COMPONENT MAINTENANCE MANUAL EMERGENCY FLOTATION SYSTEM

CHAPTER

PAGE

N°REV

Assembly (Including storage)

716 717 718 719 720

Fits and clearances

801 REV 11 802 REV 11

Special tools, fixtures and equipment materials

901 902 903 904

REV 11 Detailed Parts List REV 11 REV 11 REV 11 REV 11

REV 11 Alphanumeric Index REV 11 REV 11 REV 11

Illustrated Parts List

1001 1002 1003 1004 1005 1006

REV 11 REV 11 REV 11 REV 11 REV 11 REV 11

Detailed Parts list

1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026

REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10

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CHAPTER

PAGE

N°REV

1027 1028 1029 1030 1031 1032 1033 1034

REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10

1035 1036 1037 1038 1039 1040 1041 1042 1043 1044

REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10 REV 10

LEP - 2 REV 11

AERAZUR COMPONENT MAINTENANCE MANUAL EMERGENCY FLOTATION SYSTEM

TABLE OF CONTENTS PAGE DESCRIPTION AND OPERATION ................................................................................................. 1 TESTING AND FAULT ISOLATION............................................................................................ N/A CHARGING / DISCHARGING..................................................................................................... 201 DISASSEMBLY ........................................................................................................................... 301 CLEANING .................................................................................................................................. 401 INSPECTION/CHECK................................................................................................................. 501 REPAIR ....................................................................................................................................... 601 ASSEMBLY (INCLUDING STORAGE) ....................................................................................... 701 FITS AND CLEARANCES........................................................................................................... 801 SPECIAL TOOLS, FIXTURES AND EQUIPMENT MATERIALS ................................................ 901 ILLUSTRATED PARTS LIST .................................................................................................... 1001 DETAILED PARTS LIST ........................................................................................................... 1007

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TC - 1 REV 11

AERAZUR COMPONENT MAINTENANCE MANUAL EMERGENCY FLOTATION SYSTEM

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TC - 2 REV 11

AERAZUR COMPONENT MAINTENANCE MANUAL EMERGENCY FLOTATION SYSTEM

GLOSSARY OF ABBREVIATIONS • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

AMM APPL AR ARZ ASSY. CMM EAS ECN EFS FIG FK GA IPL LEP LOG MAS MEE MFR MSR NP P/N Qty R or REV RF or REF RR SB SBR SRU T TC

-

Aircraft Maintenance Manual Application to As Required AERAZUR Company Assembly Component Maintenance Manual Electrical Actuation System Engineering Change Notice Emergency Flotation System Figure Figure of Knots Glossary of Abbreviations Illustrated Parts List List of Effective Pages Log Card Manual Actuation System Manuel d’Entretien Équipement Manufacturer Master Servicing Recommendation Not Procurable Part Number Quantity Revision Reference Record of Revisions Service Bulletin Service Bulletin Record Shop Replaceable Unit = require its own documentation Title Table of Contents

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GA - 1 REV 11

AERAZUR COMPONENT MAINTENANCE MANUAL EMERGENCY FLOTATION SYSTEM

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GA - 2 REV 11

AERAZUR COMPONENT MAINTENANCE MANUAL EMERGENCY FLOTATION SYSTEM

TABLE OF VENDOR CODES Vendor code 80205

Name – Address NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC 1725 DE SALES N W WASHINGTON DC 20036

USA

88044

AERONAUTICAL STANDARDS FROM DEPT OF NAVY AND AIR FORCE WASHINGTON DC 10001 USA

96906

MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M USA

F0110

AFNOR (ASSOCIATION FRANCAISE DE NORMALISATION) TOUR EUROPE 92080 PARIS LA DEFENSE CEDEX 7

FRANCE

F0111

BNAE (BUREAU DE NORMALISATION DE L'AERONAUTIQUE ET DE L'ESPACE) TECHNOPOLIS 54 199 RUE JEAN JACQUES ROUSSEAU 92130 ISSY LES MOULINEAUX FRANCE

F0280

TELEFLEX - SYNERVIA 15 RUE ANTONY 94152 RUNGIS

FRANCE

AERAZUR 2 RUE MAURICE MALLET 92130 ISSY LES MOULINEAUX

FRANCE

F6101

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TVC - 1 REV 11

AERAZUR COMPONENT MAINTENANCE MANUAL EMERGENCY FLOTATION SYSTEM

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TVC - 2 REV 11

AERAZUR COMPONENT MAINTENANCE MANUAL EMERGENCY FLOTATION SYSTEM

DESCRIPTION AND OPERATION 1. General The EFS is an optional equipment. The helicopter must therefore be provided with the fittings required for the installation of the EFS, i.e., the equipment (including the electrical circuitry and the mechanical actuator assembly) permanently installed on the helicopter (FIXED PART) and the removable equipment, as required, (REMOVABLE PART) both supplied by AERAZUR. The basic EFS included in the removable part (mainly packed inflatable floats) comprise the following subassemblies: − One L/H float assembly, − One R/H float assembly, − Two inflation subsystems, − One bag (N°2) containing the requisite hardware. A. Purpose of the equipment and operation The AERAZUR EFS fitted to the helicopter is intended for use as an emergency equipment to maintain the helicopter on the surface of the water in the event of ditching. In a ditching situation, the inflation system is actuated immediately by an electrical switch by the pilot. The stored high pressure gas flows from the cylinder through the hoses to the chambers of the floats. The build-up of gas in the floats opens simultaneously the covers and the floats continue to inflate until they assume their design shape. B. General description of the EFS (see Fig. 1) Two symmetrical floats are provided to give buoyancy to the helicopter, i.e., one L/H cylindrical float and one R/H cylindrical float. Each float is attached by textile girt and patches to a manifold bar which is in turn attached to the helicopter skid, by means of fittings. NOTE : The manifold bars and theirs fittings are provided with the containers. Two helium-filled cylinders mounted on the helicopter airframe by means of clamps are fixed by airframe manufacturer mountings. Each cylinder is fitted with an inflation valve assembly, which opens rapidly when electrical power is applied to its redundant electrical fuse disc. In view of back-up operation the inflation valve is equipped with a manual control which is fitted to a mechanical actuator assembly and initiated from the cockpit. The cylinder is connected to the corresponding float by suitable banjo, couplings and supply hose assemblies. The inflation subsystems are fitted to the helicopter skid and airframe by means of multiple clamps and hardware. The fixed part comprises footstep blocks to be installed onto the front skid tube. They prevent tearing of floats during inflation. The containers are provided with hinge device and holding system with a view to holding the packed flotation assembly raised at the rear. Holding system is used when helicopter taxiing system must be carried out.

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REV 11 PAGE 1

AERAZUR COMPONENT MAINTENANCE MANUAL EMERGENCY FLOTATION SYSTEM

A

B

C

D

A. Flight configuration

C. Overhead view, flotation gear inflated

B. Ground configuration

D. Afloat

(back part of float raised = for use of taxiing system) Figure 1 – Emergency flotation system (schematic)

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REV 11 PAGE 2

AERAZUR COMPONENT MAINTENANCE MANUAL EMERGENCY FLOTATION SYSTEM

C. Characteristics (1) Total weight Qty per assy.

Description

Component weight in kg APPL. A

APPL. B

1

L/H Float assembly

22.5

1

R/H Float assembly

22.5

2

Gas cylinder assy.

- 9.01 l. APPL.A

9.2 6.2

- 9.42 l. APPL.B 1

Removable parts

2.7

1

Fixed parts (attachment fittings, clamps, hardware, electrical circuitry, mechanical actuator)

6.6

Total weight :

72.7 approx. 66.7 approx.

(2) Floats The shape of the symmetrical L/H and R/H floats is an open ended cylinder with the following dimensions: • Diameter (front).................... D =

650 mm

• Diameter (rear)..................... D =

800 mm

• Length .................................. L =

4 250 mm

• Nominal volume ................... V =

1 615 dm3 approx.

(3) Gas cylinder (refer to CMM 25-69-11 for additional information concerning the cylinder assembly) • type : composite construction pressure cylinder conforming to DOT specifications. • capacity :

APPL.A : 9.01 dm3 APPL.B : 9.42 dm3

• gas used : helium

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REV 11 PAGE 3

AERAZUR COMPONENT MAINTENANCE MANUAL EMERGENCY FLOTATION SYSTEM

2. Description A. The complete removable part (EFS) includes the following subassemblies. It may be removed when the mission assigned to the helicopter does not require flight over water. (1) L/H float assembly (see Figure 2) The L/H float assembly mainly includes an equipped float (fully packed in a textile cover assembly and attached to a manifold bar), five float supply hoses, a L/H supply hose connected to the gas cylinder banjo and two manifold bar fittings (with quick release pins onto front and rear brackets). This assembly is mounted on the helicopter skid by means of the brackets fixed at the ends of the manifold bar. It includes the following components: (a) A L/H inflatable (1) made of polyamide fabric both side coated with polyurethane. It is cylindrical in shape, with a restricted diameter at the front place. It is closed at rear end by flat end piece (globe shaped when inflated) and at front end by spherical end piece. The float is divided into five sealed chambers of equal volume, separated by means of four bulkheads made of the same fabric. 1 girt (2), 2 fastening tabs (3) and 2 bar locating tabs (4) made of polyamide-backed tape and fabric coated each side with polyurethane, are fixed to the float. The purpose of these patches is to transmit all the forces produced upon impact during ditching to the skid of the helicopter via the manifold bar (5). 16 eyelets (6) allow to fit the float with the cover assembly. Various reinforcement patches made of wear resisting film bonded along the float, are designed to protect the inflatable structure in areas subjected to fretting. Two tensioning straps (7) correctly position the inflated float against the helicopter skid. The buoyancy chambers of the float are each equipped with: − One supply coupling (8) equipped with a non-return valve, connected to the inflation system by means of a float supply hose assembly (9). − One manual inflating/deflating valve (10) designed to inflate or deflate the float externally from a source of de-oiled compressed air. − Five pressure relief valves (11) are used to limit the internal gage pressure in the rear fifth chamber to 359