# B.T. 139-307

REMOVE A494AE3EOOE0570X FLEXIBLE HOSE (PRESSURE SYSTEM 1) 

## I AND RELATED D ECALS \



## F\./0

Page 26 of 47 DETAIL A BEFORE MODIFICATION 

## Figure 9 HYDRAULIC POWER SUPPLY (SYSTEM 1) REF. ,---



### HYDRAULIC PULSATION DAMPENER REF

### INSTALL AVV004PFE6E44E0484X FLEXIBLE HOSE (PRESSURE SYSTEM 1) AND RELATED DECALS



## D**~** 

# B.T. 139-307

HYDRAULIC POVVER SUPPLY (SYSTEM 1) REF.



# / FWD

DETAIL A AFTER MODIFICATION 

## Figure 10
Page 27 of 47

# B.T. 139-307

FWD TRANSMISSION RODASSY REF.

FWD TRANSM ISSION RODASSY REF.



## Page 28 of 47 VIEWD CLAMP BLOCKASSY LOCATION ON TRANSMISSION ROD ASSY 

## (WAS)

3G2910A18831 CLAMP BLOCK ASSY REF.


## VIEWD CLAMP BLOCK ASSY LOCATION ON TRANSMISS ION ROD ASSY 

## (BECOMES)

Figure 11 260 215 100

180 UPPER ROD END REF.

HYDRAULIC PULSATION DAMPENER REF.HYDRAULIC POWER SUPPLY (SYSTEM 2) REF.



# ~ 

# FWD POWER CONTROL MODULE REF .


## DETAIL B BEFORE MODIFI CA TION 

## Figure 12 

# B.T. 139-307

REMOVE A494AE3EOOE0424X FLEXIBLE HOSE (PRESSURE SYSTEM 2) AND RELATED DECALS



## Page 29 of 47

# B.T. 139-307

HYDRAULIC POWER SUPPLY REF.

# ~ 

# FWD
POWER CONTROL MODULE REF.



## Page 30 of 47 

## DETAIL B AFTER MODIFICATION 

## Figure 13 INS TAL L AW004PFE5E68E0430X FLEXIBLE HOSE (PRESSURE SYSTEM 2) AND RELATED DECALS

# ~~~

### REMOVE A366A3E22C STUD ADHESIVE MS21919WCH12 CLAMP NAS1149C0332R WASHER MS21042L3 NUT NAS1149C0332R SPACER
AUXILIARY HYDRAULIC POWER SUPPLY REF .

REMOVE A494AE3EOOE0580X F LEXIBLE HOSE (PRESSURE AUX. SYSTEM 2) AND RELATED DECALS 

### Q.TY 1 ) Q.TY 1 

# B.T. 139-307

# g~~**~** 

# )N QTY1 

# cQs

DETAIL C HYDRAULIC PULSATION DAMPENER REF. BEFORE MODIFICATION 

## Figure 14 Page 31 of 47

# B.T. 139-307

AUXILIARY HYDRAULIC POWER SUPPLY REF.



## Page 32 of 47 INSTALL AW005PK08C ELBOW

HYDRAULIC PULSATION DAMPENER REF. 

### DETAIL C AFTER MODIFICATION 

## Figure 15

### HYDRAULIC POWER SUPPLY (SYSTEM 1) REF.

HYDRAULIC POWER SUPPLY (AUX ILIA RY SYSTEM) REF. REMOVE A494AE3EOOE0570X FLEXIBLE HOSE (PRESSURE SYSTEM 1) AND RELATED DECALS 

# B.T. 139-307

REMOVE A494AE3EOOE0570X FLEXIBLE HOSE



## VIEW 

# LHSiDE (PRESSURE AUX. SYSTEM 2) AND RELATED DECALS
POWER CONTROL MODULE REF.



## BEFORE MODIFICATION 

## Figure 16
Page 33 of 47

# B.T. 139-307

HYDRAULIC POWER SUPPLY (SYSTEM 1) REF.



## Page 34 of 47 INS TALL AW004PFE6E44E0484X FLEXIBLE HOSE AND RELATED DECALS



### VIEW LH SIDE AFTER MODIFICATION 

## Figure 17 INSTAL L AW004PFE6E18E0324X FLEXIBLE HOSE AND RELATED DECALS

### HYDRAULIC POWER SUPPLY (SYS TEM 2) REF.

POWER CONTROL MODULE REF.



### VIEW RHSiDE BEFORE MODIFICATION 

## Figure 18 

# B.T. 139-307

REMOVE A494AE3EOOE0424X FLEXIBLE HOSE (PRESSURE SYSTEM 2 AND RELATED DECALS HYDRAULIC PULSATION DAMPENER REF.



## Page 35 of 47

# B.T. 139-307

HYDRAULIC POWER SUPPLY (SYSTEM 2) REF.

POWER CONTROL MODULE REF.



## Page 36 of 47 VIEW RHSiDE AFTER MODIFICATION 

## Figure 19 INSTALL AW004PFE5E68E0430X FLEXIBLE HOSE AND RELATED DECALS
HYDRAULIC PULSATION DAMPENER REF .

### HYDRAULIC POWER SUPPLY (SYSTEM 1) REF.

HYDRAULIC POWER SUPPLY (AUXILIARY SYSTEM) REF.

REMOVE: A494AE6E14E0348X FLEXIBLE HOSE (PRESSURE AUX SYSTEM 2) AND RELATED DECALS



## Figure 20 

# B.T. 139-307

REMOVE A494AE3EOOE0570X FLEXIBLE HOSE (PRESSURE SYSTEM 1) AND RELATED DECALS



### VIEW LH SIDE BEFORE MODIFICATION



## Page 37 of 47

# B.T. 139-307

HYDRAULIC POWER SUPPLY REF.

HYDRAULIC POWER SUPPLY REF.

INSTA LL AW004PFE6E 19E 0330X FLEXIBLE HOSE AND RELATED DECALS



## Page 38 of 47 Figure 21 INSTALL AW005PK08C ELBOW INSTALL AW004PFE5E39E0448X FLEXIBLE HOSE AND RELATED DECALS 

### A 

# /

POWER CONTROL MODULE REF .


### VIEW LH SIDE AFTER MODIFICATION

### 3G2910A18831 CLAMP BLOCK ASSY REF. HYDRAULIC PULSATION DAMPE NER REF. 

### 455 345 290

F WD TRANSM I SSION RODASSY REF . 3G2910A18831 CLAMP BLOCK ASSY REF. 180

3G2910A18831 CLAMP BLOCK ASSY REF. HYDRAULIC PULSATION DAMPENER REF.

FWD TRANSMISS I ON RODASSY REF. 

### VIEW A CLAMP BLOCK ASSY LOCAT I ON O N TRANSM I SSION ROD ASSY 

### ( WAS)


### 465 355

3G2910A18831 C L AMP BLOCK ASSY RE F. 

### VIEW A CLAMP BLOCK ASSY LOCATION ON TRANSMISS I ON ROD ASSY 

### ( BECO M ES ) Figure 22 285 145 

# B.T. 139-307

UPPER ROD END REF .

HYDRA U LIC P U LS A TION DAMPE N ER REF.



### 36 . 5

HYDRAULIC PULSATION DAMPENER REF.



### Page 39 of 47

# B.T. 139-307

HYDRAULIC POWER SUPPLY (SYS TEM 2) REF. ACCESSORY GEARBOX -\ REF.

POWER CONTROL MODULE REF. 

## VIEW RHSiDE BEFORE MODIFICATION Figure 23


## Page 40 of 47 HYDRAULIC PULSATION DAMPENER REF.



## B"'U 0>

<0

<D **~** .......

g_ **~** -...J ., <0'

c

...

**~**

1\) **~** REMOVE UPPER ROD END REF. AN3-4A BOLT

MS21 043-3 NUT

MS21919WCH9 CLAMP

MS21919WCH12 CLAMP NAS1149C0332R WASHER (Q.
STA 4596.00

8L 445 . 00

WL 3102.00 A494AE2EOOE0670X FLEX I BLE HOSE

REF. r DETAILC 500 390 346.6 l VIEWB FWD TRANSM I SSION RODASSY REF. 3G2910A18831

CLAMP BLOCK ASSY

RE F. CLAMP BLOCK ASSY LOCATION

ON TRANSMISSION ROO ASSY AN3-6A BOLT

NAS43DD3-25N SPACER

MS21919WCH9 CLAMP {RE F .) NAS1149C0332R WASHER {REF.) RE-US E EXISTING FASTENER m . -f

. **~** (,J

(0

I

(,J

0

-......!

# B.T. 139-307

MA I N GEARBOX REF. HYDRAULIC POWER SUPPLY REF.

ACCESSORY GEARBOX REF.



# c
INSTAL L AW005PK08C ELBOW POWER CONTROL MODULE REF. ; 

### VIEW RHSIDE AFTER MODIFICATION Figure 25



## Page 42 of 47 B

## ~"U !).)

<0

(!)

.t>-

(..)

g_ .t>-

--.J ::!! (Q

c::

(b I\)

en UPPER ROD END REF. INSTALL

AN3-6A BOLT (REF.)

MS21043-3 NUT (REF . )

MS21919WCH9 CLAMP (REF.)

MS21919WCH19 CLAMP

NAS1149C0332R WASHER (REF.)

NAS43DD3-16N SPACER

RE-USE EXISTING HARDWARE
STA 4590.00

BL 462.20

WL 3 116.00 CASE DRAIN SYS T EM 2

REF. **~** INSTALL

AN3-10A BOLT

NAS43DD3-38N SPACER

MS21919WCH9 CLAMP (REF.)

NAS1149C0332R WAS H ER (REF.)

RE-USE EXISTING FASTENER REF.

D E TAIL C NEW FIX I NG 495 FWD TRANSMISSION RODASSY

380 340 REF. 3G2910A18831

CLAMP BLOCK ASSY REF. VIEWS NEW POS ITI O N OF CLAMP BLOCK ASSY

ON TRANSM I SSION ROD ASSY OJ **~**

......

w

(0

I

w

0

.....,-oOlcoCD+>-+>-Q.+>---.J"T1<0's::;1\.)........HYDRAULICPOWERSUPPLY(SYSTEM2)REF.REMOVEA494AE3EOOE0530XFLEXIBLEHOSE(PRESSURESYSTEM2)ANDRELATEDDECALSA.........REMOVEMS21042L3NUTMS21919WCH14CLAMPNAS1149D0332JWASHERNAS1801-3-9SCREWLBEFOREMODIFICATIONm:--.......w(CIw0......."'UOl<0CD010-'-1"T1<C'r:::...en1\)<»HYDRAULICPOWERSUPPLY(SYSTEM2)REF.INSTALL\AW004PFE6E21E0550XFLEXIBLEHOSE,(PRESSURESYSTEM2)ANDRELATEDDECALSA.........INSTALLAWOOSPKOBCELBOWGENERALVIEWI;/tAFTERMODIFICATION---',....----__,_aJ.....w(0Iw0-...J

# B.T. 139-307

Pag e 46 of 47 VIEW A BEFORE MODIFICATION 

## Figure 29 A494AE3EOOE0530X FLEXIBLE HOSE (PRESSURE SYSTEM 2) REF. 

# FWD

### VIEW A AFTER MODIF ICA TION 

## Figure 30 

# B.T. 139-307

AVV004PFE6E21E0550X FLEXIBLE HOSE (PRESSURE SYSTEM 2) REF. 

# FWD 

# ..

Page 47 of 47

# '"}**~~** 

# Ag u staW estl a nd A Finmecc a nica Company Prego sped i re a questo i nd i rizzo: Data: Pl

ea se s e nd to the following address : MO DUL O AP PLI CAZ IO N E B OLLETI INO T E C N ICO D a t e: TECHNICAL BULLETIN COMPLIANCE FORM 

## A GUSTAW E S T L AN D s.p.A. Numero : CUSTOMER SUPPORT & SERV I CES · ITALY Numbe r: PROD U C T S U PPORT ENGINEERING OPT
. V i a de l Gregge
. 100 21015 Lonate Pozzolo (VA) ·ITALY Revisione: Tel.: +39 0331 664905 Revision : Fax: +39 0331 664684 Oenominazio n e Ct i ente ed lnd i rizzo: Te l efo n o : Customer Name and Address: Telephone: Fax:
Data Appl i caz i one B.T.: B. T. Compliance Date: Modello Elicotte r o S / N Matricota OreTota l i Ore D.U . R. Helicopter Model Tail Number Total Hours T.S
. O.

Note: Remarks:

ln f orm a zion i: Informat i on : AI fi n e d i gest ir e le varianti alia con fi g u raz i one base , i n re l az i one all ' emissione del Bolletti n o Tecnico , p r egh i am o d i v oler co m p il a r e il presen te modu l o i n t u tte le s u e p a rtie s pedi rl o all ' indir iz zo sopr a i n dicat e . S i r i n g r a zi a per I a gen ti le c oll a bo razi o n e data . W e re q ue st yo u r coopera t ion in f i lli ng t h is form , in or de r t o keep o u t st a t ist ical da t a re le v an t t o aircr a f t c on f i gu r ation up -to·da t e. The l orm s h ou l d be fi ll ed in a ll it s p arts and sent to the ab o ve address. W e than k y o u b e f ore h and for t he i nform a t io n g i ve n .