# ASB No. AS355-26.00.10

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This document is available on the Internet: www.airbushelicopters.com/techpub 

### Civil version: NP



# ALERT SERVICE BULLETIN

SUBJECT: FIRE PROTECTION - E ngine fire extinguishing system

Crossed connection in the distribution sy stem of the engine fire extinguishers
Corresponds to modification 073990



### Revision No. Date of issue

Revision 0 2015-07-02



### Summary:

The purpose of this ALERT SERVICE BULLETIN is to: - restore configuration of the position of the squibs on each of the fire exti nguishers in line with the control buttons. - supersede ALERT SERVICE BULLETIN 26.00.09.



### Compliance:

Compliance with this ALERT SERVICE BULLETIN is mandatory. For the attention of

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### 1. PLANNING INFORMATION

1.A. EFFECTIVITY

1.A.1. Helicopters/Installed equipment

Helicopters POST MOD OP-3931 (Installation of A rrius 1A1 engine fire extinguishing system) but

PRE MOD 073990.



### NOTE

Refer to the Individual Inspection Record (or RIC AMS) and aircraft log book to identify the actual modification status of

the aircraft.

1.A.2. Non-installed equipment

- RH medium equipped pipe P/N 355A59-0608-00 - RH short equipped pipe P/N 355A59-0607-00 - LH medium equipped pipe P/N 355A59-0602-00 - RH nozzle pipe P/N 355A59-0604-00 - LH nozzle pipe P/N 355A59-0603-00 - LH nozzle pipe P/N (variant: hoist capable) 355A59-0617-00



### 1.B. ASSOCIATED REQUIREMENTS

Not applicable.



### 1.C. REASON

During an inspection of the engine fire extinguishing sys tem, the technician found that the LH discharge system of the fire extinguishers was connected to t he RH engine compartment and the RH discharge system was connected to the LH engine compartment.

Consequently, in case of fire in one of the engine com partments, the pilot, by pressing the fire extinguishing buttons corresponding to the engine compartment on fire, activates the discharge of the fire extinguishers in the other engine compartment.

Pending a modification to the fire extinguishing subs tance distribution system, Airbus Helicopters had requested, through ALERT SERVICE BULLETIN 26.00.09, the crossed connection of the position of the squibs on each of the fire extinguishers so that the firing control buttons corres pond to the relevant engine compartments.

This modification (073990) being defined, Airbus He licopters requests, through this ALERT SERVICE BULLETIN to restore configuration of the position of the squibs on each of the fire extinguishers in line with

the control buttons and modi fy the discharge system.

This ALERT SERVICE BULLETIN supersed es ALERT SERVICE BULLETIN 26.00.09.

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### 1.D. DESCRIPTION

This ALERT SERVICE BULLETIN consists of: - Restoring configuration of the squibs to match the new positioning of the fire extinguisher discharge heads. - Removing the label located on the instrument panel or the yellow adhesive located on the pipes, added

during compliance with ALERT SERVICE BULLETIN 26.00.09. - Installing new discharge system pipes.



### 1.E. COMPLIANCE

1.E.1. Compliance at the works

Helicopters/installed equipment:

Not applicable.

Non-installed equipment:

Not applicable.

1.E.2. Compliance in service

The works must be performed on t he helicopter by the operator.

Helicopters/installed equipment:

Comply with paragraph 3. of this ALERT SERVICE BU LLETIN, no later than within 12 months as from receipt of this ALERT SERVICE BULLETIN, issued on the date mentioned in page footer.

Non-installed equipment:

The components mentioned in § 1.A.2. mu st be scrapped without exceeding 12 months.

Building up spares stocks related to compliance with this ALERT SERVICE BULLETIN is left to the operator's initiative.



### 1.F. APPROVAL

Approval of modifications:

The information or instructions relate to modifi cation 073990 which was approved on May 8, 2014 by the EASA for helicopters of civil versions subj ect to an Airworthiness Certificate.

Approval of this document:

The technical information contained in this AL ERT SERVICE BULLETIN Revision 0 was approved on July 1, 2015 under the authority of EASA Design Organization Approval No. 21J.056 for helicopters of civil versions subject to an Airworthiness Certificate.

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### 1.G. MANPOWER

For compliance with this ALERT SERVICE BULLETIN, Airbus Helicopters recommends the following personnel qualifications:

Qualification:

2 Mechanical Technicians,
1 Avionics Technician,

1 Pilot.

Time for the operations is indicated for reference, for a standard configuration.

Time for the operations:

22 hours approximately for Mechanical Technicians, 1 hour approximately for the Avionics Technician, 1 hour approximately for the Pilot.

The estimated helicopter downtime is approximately 3 days.



### 1.H. WEIGHT AND BALANCE

Not applicable.



### 1.I. EFFECT ON ELECTRICAL LOADS

Not applicable.



### 1.J. SOFTWARE MODIFICATION EMBODIMENT RECORD

Not applicable.

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### 1.K. REFERENCES

The documents required for compliance with this ALERT SERVICE BULLETIN are as follows:

MCS: 26.20.00: Engine fire extinguishing

MET: 12.00.00.308: Hydraulic reservoir draining and filling MET: 21.20.00.401: Heating or demisti ng valve - Removal - Installation MET: 24.00.00.301: Electrical ge neration: General instructions MET: 25.63.00.401: Removable comp onents : Removal - Installation

MET: 26.20.00.401: EXTINGUISHING: Squibs - Removal - Installation MET: 26.20.00.402: Cowling fire extinguishing cyli nders (double head): Removal - Installation MET: 26.20.00.403: Safety covers of push-buttons: Removal - Installation MET: 26.20.00.404: Supports and pipes (MOD OP3931): Removal - Installation MET: 26.20.00.601: Fire extinguishing system: Check

MET: 29.00.00.301: General inst ructions for hydraulic power MET: 53.00.00.403: MGB and engine cowlings: Removal - Installation

MET: 60.00.00.301: General inst ructions - Mechanical system MET: 71.06.00.401: Engine: Removal - Installation

MET: 76.20.00.401: Removal - Installation - Fuel shut-off valve ball controls

MET: 76.20.00.501: Fuel shut-off valv e ball controls: Adjustments and tests MET: 79.06.00.401: Oil system equipment: Removal - Installation

MTC: 20.02.01.102: Identificati on of electrical equipment MTC: 20.02.01.103: Installation of pipes

MTC: 20.02.01.402: Installation of "ARSAERO" unions

MTC: 20.02.01.408: Installation of BNAé cylindrical couplings MTC: 20.02.05.404: Joining by bolts and nuts

MTC: 20.02.05.406: Installation of wide-band jubilee clip clamps MTC: 20.02.06.402: Safetying with lockwire MTC: 20.02.07.401: Bonding procedure MTC: 20.02.07.402: Bonding proced ure applied on metal structure MTC: 20.04.01.402: Cleaning of removed individual parts with liquid solvents MTC: 20.05.01.222: Application of PR 1771 B2 sealant MTC: 20.07.02.211: Storage, handling and installation of pyrotechnic devices

ALERT SERVICE BULLETIN: 26.00.09.



### 1.L. DOCUMENTS AFFECTED

The modification will be integrated in the following manuals: - Illustrated Parts Catalog (IPC), - Maintenance Manual (MET).

These documents will be issued at a later date.



### 1.M. INTERCHANGEABILITY OR MIXABILITY OF PARTS

Interchangeability:

Pipes PRE and POST MOD 073990 are not interchangeable.

Mixability:

Mixability of pipes PRE MOD and POST MOD 073990 is prohibited.

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### 2. MATERIAL INFORMATION

2.A. MATERIAL: PRICE - AVAILABILITY - PROCUREMENT

For any information concerning modification kits and/or components or for assistance, contact the Sales and Customer Relations Department.

Airbus Helicopters Etablissement de Marignane

Direction Ventes et Relations Client

13725 MARIGNANE CEDEX

FRANCE



### NOTE 1

On the purchase order, pl ease specify the mode of transport, the destination and the serial numbers of the

aircraft to be modified.



### NOTE 2

For ALERT SERVICE BULLETINS, order by:

Telex: HELICOP 410 969F Fax: +33 (0)4.42.85.99.96.



### 2.B. INFORMATION CONCERNING INDUSTRIAL SUPPORT

Not applicable.



### 2.C. MATERIAL REQUIRED FOR EACH HELICOPTER/COMPONENT

Kits or components to be ordered for one helicopter or one assembly:

Key Word Qty New

P/N Item Former

P/N Instruction

Fire extinguishing

pipes crossed

connection kit including: 1 355A07-3990-071

Pipe, equipped, LH 1 355A59-0601-01 1 Pipe, equipped, RH 355A59-0608-00 Scrap Pipe, equipped, RH 1 355A59-0607-01 2 355A59-0607-00 Scrap Pipe, equipped, LH 1 355A59-0602-01 3 355A59-0602-00 Scrap

Pipe, nozzle, RH 1 355A59-0604-01 4 355A59-0604-00 Scrap

Pipe, nozzle, LH 1 355A59-0617-01 5 355A59-0603-00

or 355A59-0617-00 Scrap

# ASB No. AS355-26.00.10

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This document is available on the Internet: www.airbushelicopters.com/techpub Material to be ordered separately:

As per Work Cards and Tasks mentioned in this ALERT SERVICE BULETTIN and list below:

Key Word Qty New

P/N Item Former

P/N Instruction

Nut 3 ASN52320BH050N 6

Products to be ordered separately:

As per Work Cards and Tasks mentioned in this ALERT SERVICE BULETTIN and list below:

Key Word Qty Product P/N CM Item

Lockwire AR EN3628-0,8 8

Sealant AR PR 1771 B2 9

The products can be ordered separately from the INTERTURBINE AVIATION LOGISTICS company.

Website: http://www.interturbine.com Telephone: +49.41.91.809.300

AOG: +49.41.91.809.444



### 2.D. MATERIAL TO BE RETURNED

Not applicable.

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### 3. ACCOMPLISHMENT INSTRUCTIONS

3.A. GENERAL

- Read and comply with general instructions conc erning electrical power generation as per MET

Work Card 24.00.00.301. - Read and comply with the general instructions for hydraulic power as per MET

Work Card 29.00.00.301. - Read and comply with the general instructions concerning mechanical assemblies as per MET

Work Card 60.00.00.301. - Read and comply with instructions for identificat ion of electrical installations as per MTC

Work Card 20.02.01.102. - Read and comply with instructions for installation of pipes as per MTC Work Card 20.02.01.103. - Read and comply with instruct ions for installation of "AR SAERO" unions as per MTC

Work Card 20.02.01.402. - Read and comply with instructions for installation of BNAé cylindrical couplings as per MTC

Work Card 20.02.01.408. - Read and comply with general instructions for joining by bolts and nuts as per MTC

Work Card 20.02.05.404. - Read and comply with instructions for installation of wide-band jubilee clip clamps as per

MTC Work Card 20.02.05.406. - Read and comply with instructions on safetying with lockwire as per MTC Work Card 20.02.06.402. - Read and comply with the bonding procedure as per MTC Work Cards 20.02.07.401 and 20.02.07.402. - Read and comply with instructions for cleaning remo ved detail parts with liquid solvents as per MTC

Work Card 20.04.01.402. - Read and comply with instructions for use of PR 1771 B2 sealant as per MTC Work Card 20.05.01.222. - Read and comply with instructions for storage, handl ing and installation of pyrotechnic devices as per

MTC Work Card 20.07.02.211.



### 3.B. OPERATIONAL PROCEDURE

- For helicopters which complied with ALERT SERVICE BULLETIN 26.00.09 and which embodied

modification 355A088608.00 (these helicopters have the crossed connected squibs), comply with paragraphs 3.B.1., 3.B.2.a., 3. B.2.b. and 3.B.2.c.1., 3.B.3.

- For helicopters which only complied with paragraph 3.B.2. of ALERT SERVICE BULLETIN 26.00.09 (these

helicopters have a label on the instrument panel), co mply with paragraphs 3.B. 1., 3.B.2.a., 3.B.2.b., and
3.B.2.c.2., 3.B.3.

- For helicopters which did not comply with ALERT SERVICE BULLETIN 26.00.09, comply with paragraphs

3.B.1., 3.B.2.a., 3.B.2.b., 3. B.2.c.2. (not including removal of the label from the instrument panel) and 3.B.3.

# ASB No. AS355-26.00.10

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This document is available on the Internet: www.airbushelicopters.com/techpub 3.B.1. Preliminary steps

- On control panels "5 ALPHA 1" and "5 ALPHA 2", ma ke sure that push-buttons "FIRE EXT 1" and "FIRE

EXT 2" are not pressed. - Disconnect all electrical supply sources as per MET Work Card 24.00.00.301.

- Install suitable access means. - Remove MGB-engine cowlings as per MET Work Card 53.00.00.403. - Disconnect the VHF antenna connector "28R" and remove the rear cowling. - Remove and/or open all cowlings, panels, doors and all equipment to allow adequate access to the various

work areas. - Remove, if necessary, the hoist arm as per MET Work Card 25.63.00.401. - Remove the engine exhaust pipes as per MET Work Card 71.06.00.401.

- Disconnect the ball controls of the fuel shut-off va lve near the valve as per MET Work Card 76.20.00.401.

- Remove the median and rear firewalls. - Drain the lubricating system of the LH and RH engines. - Remove the lubricating system outlet pipes of the engine as per MET Work Card 79.06.00.401. - Remove the P2 system pipes at the engi ne outlet as per MET Work Card 21.20.00.401.

RH side transmission support platform P2 system pipe to be

removed

Lubricating system outlet pipe

to be removed Ball control to

be removed

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This document is available on the Internet: www.airbushelicopters.com/techpub LH side transmission support platform

- For helicopters POST MOD OP1684, which previously drained the hydraulic system, disconnect the return

pipe of the ground power receptacle system.

Combiner gearbox viewed looking forward P2 system pipe to

be removed

Lubricating system outlet pipe

to be removed Ball control to

be removed

Return pipe of the ground power receptacle system to be

disconnected

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This document is available on the Internet: www.airbushelicopters.com/techpub 3.B.2. Procedure

3.B.2.a. Removal of the fire extinguishing system

3.B.2.a.1. Removal of clamps and electrical harnesses (Figure 1)

- Remove the squibs as per MET Work Card 26.20.00.401. - Remove nuts (o), washers (m) and (n), bolt s (p), clamps (j) and spacers (k) located on the

transmission support platform (Detail B). - Remove bolts (q), washers (h), (m) and (n), clam ps (j) and spacers (k) located on the rear structure

floor (Detail C). - Mark the routing of harnesses (w) and (x) (not show n in figure 1) on nozzle pipes (e) and (f) (see photo

below). - Remove clamps (v) (not shown in figure 1) that a ttach harnesses (w) and (x) (not shown in figure 1) to

nozzle pipes (e) and (f) (see photo below).

Reinforcement of the rear transmission bearing

- Retain nut (o), washers (h), (m) and (n), bolts (p) and (q), clamps (j) and (v) and spacers (k).

3.B.2.a.2. Removal of fire extinguish ing system pipes (Figures 1 and 3)

- Cut and remove the lockwire on the side of check valves (g) and on the side of exhaust nozzles (y)

and unions (z) (DETAIL D Figure 1). - Disconnect and remove nozzle pipes (e) and (f) (DETAIL A Figure 1). - Scrap nozzle pipes (e) and (f). - Remove, if necessary, union (z) and nozzle (y) of the firewall (DETAIL D Figure 1).

- Cut and remove the lockwire on the side of t he fire extinguishing cylinders (DETAIL A Figure 1). - Disconnect pipe (c) on the side of the RH cylinder and pipe (a) on the side of the LH cylinder (DETAIL

E Figure 3). - Remove pipes (a) and (c) fitted with check valve (g). - Disconnect pipe (d) on the side of the RH cylin der and pipe (b) on the side of the LH cylinder. - Remove pipes (b) and (d) fitted with check valve (g). - Cut and remove lockwire of check valves (g) (DETAIL A Figure 1). - Disconnect and scrap pipes (d) and (b) and remove check valve (g). v

v

e f w

x

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This document is available on the Internet: www.airbushelicopters.com/techpub 3.B.2.a.2. Removal of fire exti nguishing system pipes (Continued)

- Disconnect pipes (a) and (c) and remove check valve (g).



### NOTE 1

Identify pipe (a), using a felt pen, before removal in order not to confuse it with pipe (d).

- Scrap pipe (c). - If necessary, blow removed pipe (a) with dry air. - Retain pipe (a) and check valves (g).



### NOTE 2

Put a blanking plug on each end of pipe (a).

- Remove the fire extinguishing cylinders as per MET Work Card 26.20.00.402.

3.B.2.b. Installation of fire exti nguishing system pipes (Figure 2)



### NOTE 3

Only remove blanking plugs when you connect pipes.

3.B.2.b.1. Check of check valves

- Manually press each valve (for memory 2 pistons per check valve). - Make sure pistons correctly move back to their seats as soon as thrust is released. - Visually check that there is no corrosion on the seats and pistons.

3.B.2.b.2. Installation of nozzle pipes (Figure 2)

- Install unions (z) and nozzles (y) of the firewall, if they were removed in paragraph 3.B.2.a.2.

(Detail D).



### CAUTION

PAY SPECIFIC ATTENTION WHEN POSITIONING NOZZLE PIPES (4) AND (5) ON THE

REINFORCEMENT. ANY EXCESSIVE LOAD COULD

DAMAGE THEM.

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This document is available on the Internet: www.airbushelicopters.com/techpub 3.B.2.b.2. Installation of nozzle pipes (Continued)

- Install nozzle pipes (4) and (5) on the transmission support platform (Detail A).



### NOTE 4

It is preferable to keep the packaging of nozzle pipes (4) and (5) in order to protect them when they are positioned to prevent damage to their protection. Remove their packagings, once nozzle pipes (4) and (5) are installed.



### NOTE 5

Make sure that nozzle pipes (4 ) and (5) are correctly routed along the reinforcement (see photo below).

Reinforcement of the rear transmission bearing

- Check correct positioning of dr ain orifices that must be positi oned at the lower part on the pipes. - Ensure electrical bonding as per details B and C



### NOTE 6

On nozzle pipes (4) and (5), provide for a paint free area on clamps (j) to ensure electrical bonding.

- Ensure electrical bonding of all clamps (j). - Install clamps (j), spacers (k), washers (m) and (n), and bolts (p) as per Detail B. - Tighten bolts (p) to standard torque. - Perform the sealing on washers (n) using sealant (9). - Install clamps (j), spacers (k), washers (h), (m ) and (n), bolts (q) and nuts (6) as per Detail C. - Tighten nuts (6) to standard torque. - Perform the sealing on washers (n) using sealant (9). - Attach harnesses (w) and (x) to noz zle pipes (4) and (5) using clamps (v ) (not shown in figure 2) in the

same way as the routing reco rded in paragraph 3.B.2.a. Reinforcement 4

5

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This document is available on the Internet: www.airbushelicopters.com/techpub 3.B.2.b.3. Check of the cont rol system of the fire extinguishing system (Figure 2)

- Remove the push-button covers as per MET Work Card 26.20.00.403. - Energize the aircraft electrical circ uit as per MET Work Card 24.00.00.301. - Make sure there is voltage between terminals 1 and 3, and 2 and 3 of connector "14W1", by pressing

button "FIRE EXT 1" of engine 1. - Make sure there is voltage between terminals 1 and 3, and 2 and 3 of connector "13W1", by pressing

button "FIRE EXT 2" of engine 1. - Make sure there is voltage between terminals 1 and 3, and 2 and 3 of connector "14W2", by pressing

button "FIRE EXT 1" of engine 2. - Make sure there is voltage between terminals 1 and 3, and 2 and 3 of connector "13W2", by pressing

button "FIRE EXT 2" of engine 2. - De-energize the aircraft electrical circ uit as per MET Work Card 24.00.00.301. - Install the push-button covers as per MET Work Card 26.20.00.403.

3.B.2.b.4. Check of fire extinguishing cylinders

- Check the presence of marking and identification labels. - Check the pressure recorded on the pressu re gage at the considered temperature.



### NOTE 7

Refer to the correspondence table of pressure-temperature located on the cylinder.

3.B.2.b.5. Installation of pipes and valves (Figure 3)

- On table:

 Connect, without tightening, pipes (a) and (1) to check valve (g) (SECTION F-F),

 Connect, without tightening, pipes (2) and (3) to check valve (g) (SECTION G-G), - Install pipes (a) and (1) fitted with check valve (g) and pipes (2) and (3) fitted with check valve (g) on

nozzle pipes (4) and (5) (DETAIL E). - Blow pipe (a) with dry air to make sure exhaust nozzle (y) located on the RH side properly flows. - Blow pipe (1) with dry air to make sure exhaust nozzle (y) located on the RH side properly flows. - Blow pipe (2) with dry air to make sure exhaust nozzle (y) located on the LH side properly flows. - Blow pipe (3) with dry air to make sure exhaust nozzle (y) located on the LH side properly flows. - Install the fire extinguishing cylinder s as per MET Work Card 26.20.00.402. - Make sure drain orifices are properly positioned. - Tighten all unions of pipes (a), (1), (2), (3), (4) and (5) as per MTC Work Card 20.02.01.103. - Safety the unions of pipes (a), (1), (2), (3), (4) and (5) with lockwire (8).

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This document is available on the Internet: www.airbushelicopters.com/techpub 3.B.2.c. Cancellation of ALERT SERVICE BULLETIN 26.00.09.

3.B.2.c.1. Helicopter POST MOD 355A088608.00: crossed connection of squibs (Figure 3)

- Remove the yellow adhesive from pipe (a), that was affixed during compliance with ALERT SERVICE

BULLETIN 26.00.09. - For the LH fire extinguishing cylinder:

 Install grey squib (r) on the grey firing h ead and connect connector "13W2" as per

MET Work Card 26.20.00.401 and SECTION F-F of Figure 3.

 Install yellow squib (s) on the yellow firing head and connect connector "14W1" as per

MET Work Card 26.20.00.401 an d SECTION G-G of Figure 3. - For the RH fire extinguishing cylinder:

 Install yellow squib (t) on the yellow firing head and connect connector "14W2" as per

MET Work Card 26.20.00.401 and SECTION F-F of Figure 3.

 Install grey squib (u) on the grey firing head and connect connector "13W1" as per

MET Work Card 26.20.00.401 an d SECTION G-G of Figure 3.

Removed fire extinguishing cylinders

Installed fire extinguishing cylinders Yellow Grey

Yellow Yellow

Grey

Grey a 2

1 1

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This document is available on the Internet: www.airbushelicopters.com/techpub 3.B.2.c.2. Helicopter PRE MOD 355A088608.00: label affixed to the instrument panel

- Remove the label located on the instrument panel a nd that was affixed during compliance with ALERT

SERVICE BULLETIN 26.00.09. - Install the squibs as per MET Work Card 26.20.00.401.

3.B.3. Final steps

- Install the P2 system pipes removed in paragr aph 3.B.1. as per MET Work Card 21.20.00.401. - For helicopters POST MOD OP1684:

 connect return pipe of the ground power receptacle system, RH side.

 fill and drain hydraulic reservoir as per MET Work Card 12.00.00.308. - Install the lubricating system outlet pipe of the LH engine, removed in paragraph 3.B.1.,

as per MET Work Card 79.06.00.401.

- Connect the ball controls of the fuel shut-off valv e near the valve as per MET Work Card 76.20.00.401.

- Install the median and rear firewalls. - Install the engine exhaust pipes as per MET Work Card 71.06.00.401. - Adjust the ball controls of the fuel shut -off valve as per MET Work Card 76.20.00.501. - Perform the final steps of the engine lubricatin g system as per MET Work Card 79.06.00.401.

- Connect VHF antenna connector "28R". - Install the hoist arm as per MET Work Card 25.63.00.401, if removed in paragraph 3.B.1. - Install and/or close all cowlings, panels, doors an d equipment removed and/or opened during preliminary

steps (paragraph 3.B.1.). - Install the MGB-engine cowlings as per MET Work Card 53.00.00.403.

- Remove access means. - Connect all electrical supply sources as per MET Work Card 24.00.00.301.



### 3.C. IDENTIFICATION

Identification of this document:

Record compliance with this ALERT SERVICE BULL ETIN with the revision number in the aircraft

documents.

Identification of modificati ons in the documentation:

Record embodiment of modification 073990 in the aircraft documents.

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### 3.D. OPERATING AND MAINTENANCE INSTRUCTIONS

Operating instructions:

Not applicable.

Maintenance instructions:

Compliance with this ALERT SERVICE BULLETIN renders MET Work Card 26.20.00.401 applicable, without

restriction.

The Maintenance Manual (MET) will incorporate the instruct ions mentioned in paragraph 3.B.2.b. in a further revision. After incorporation of these instructio ns in the Maintenance Manual (MET) (Work Card 26.20.00.404), refer to it.

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This document is available on the Internet: www.airbushelicopters.com/techpub 

## PAGE LEFT BLANK INTENTIONALLYASBNo. AS355-26.00.10Revision 0 2015-07-02Page 19/23This document is available on the Internet:www.airbushelicopters.com/techpubFigure 1PRE MOD 073990rstuagbcdfehjkmnoqjkmnphjkmnoq13W213W114W214W1eorfzyjqohnkmnjpkmASBNo. AS355-26.00.10Revision 0 2015-07-02Page 20/23This document is available on the Internet:www.airbushelicopters.com/techpubPAGE LEFT BLANK INTENTIONALLYASBNo. AS355-26.00.10Revision 0 2015-07-02Page 21/23This document is available on the Internet:www.airbushelicopters.com/techpubFigure 2POST MOD 073990a1gjq6hnkm9n9jpkmrs3tu254jjj84or58813W213W114W214W1zySee Fig 3See Fig 3See Fig 3ASBNo. AS355-26.00.10Revision 0 2015-07-02Page 22/23This document is available on the Internet:www.airbushelicopters.com/techpubPAGE LEFT BLANK INTENTIONALLYASBNo. AS355-26.00.10Revision 0 2015-07-02Page 23/23This document is available on the Internet:www.airbushelicopters.com/techpubFigure 3POST MOD 073990PRE MOD 073990SECTION F-FPOST MOD 073990SECTION G-GPOST MOD 073990a8g1r13W2t14W2s14W1u13W13g8288cabdfea13245gg