XX

TRANSLATION OF 

BOLLETTINO TECNICO N° 119-47

The technical content of this document is approved 

under the authority of DOA nr EASA.21J.005. 

DATE March 29, 2012

REV.

 xxxxxxx 

Compliance with 

this bollettino is: 

 XX Page 1 of 6

SUBJECT: LEFT AND RIGHT PILOT DOORS WINDOW BONDING.

REASON: Provide the necessary instructions to bond the window and the relevant 

seal to the window frame of the left and right pilot doors.

HELICOPTERS AFFECTED:

All the Agusta A119 and AW119MKII helicopters up to S/N 14781 

included. 

NOTE

The pilot doors assy P/N 109-0360-01-163/-

164 at stock, are affected with this Bollettino. 

COMPLIANCE:

Within the next 50 (fifty) flight hours after the receipt of this Bollettino and 

however within and not later than September 30, 2012.

DESCRIPTION:

One AW119MKII helicopter owned by Agusta has lost the pilot door 

window during a test flight. No injuries to the occupant or damages to the 

helicopter occurred. 

The investigation revealed that the event was caused by the incorrect 

information reported in the manufacturing job card, that did not require 

the bonding of the seal both to the window and to the door structure. 

This Bollettino is issued in order to verify the left and right pilot doors 

window installation and provide the necessary instructions to recover the 

conformity in case the seal is found not bonded.

The instructions contained in this Bollettino are prescribed as a 

precautionary measure to prevent any occurrence to the helicopter and 

its occupants.

MANDATORY

An appropriate entry should be made in the aircraft log book upon accomplishment.

If ownership of aircraft has changed, please, forward to new owner.

AgustaWestland S.p.A

Via Giovanni Agusta, 520

21017 Cascina Costa di Samarate (VA) Italy

Tel.: +39 0331 229111 - Fax: +39 0331 229605/222595
B.T. 119-47 

Page 2 of 6 

REQUIRED MANPOWER:

Estimated 2 (two) manpower hours are required for compliance with this 

Bollettino. 

WARRANTY:

Within the calendar terms mentioned at point “Compliance”, the parts 

required to apply the present Bollettino shall be supplied on a free of 

charge basis by AgustaWestland upon Customers request, except for 

consumable materials. 

Upon application of this Bollettino, Customers are requested to submit to 

AgustaWestland Warranty Administration the Technical Bulletin 

Compliance form, attached to this Bollettino duly completed in all its 

parts, and relevant W.M.M. (Warranty Claim/Maintenance Work 

Order/Malfunction Report). 

All removed parts have to be returned to AgustaWestland after received 

relevant RMA (Return Material Authorization). 

REQUIRED MATERIALS:

The following material is required for compliance with this Bollettino: 

SPECIFICATION DESCRIPTION Q.TY

999-1700-49-101G Seal filler 4,5 m 

In addition the following consumable materials are required for 

compliance with this Bollettino: 

SPECIFICATION DESCRIPTION Q.TY

199-05-152 Adhesive RTV732 A.R. 

TY I CL 2 (cod. 900003249) 

TT-N-95 Aliphatic Naphtha A.R. 

TY 2 (cod. 531055030) 

Commercial Masking tape A.R. 

Commercial Soap solution A.R. 

SPECIAL TOOLS: 

N.A. 

WEIGHT AND BALANCE CHANGES: 

N.A. 

REFERENCES:

A119/AW119MKII Maintenance Manual. 

PUBLICATIONS AFFECTED: 

N.A. 
B.T. 119-47 

Page 3 of 6 

COMPLIANCE INSTRUCTIONS:

(See figure 1) 

1. Prepare the helicopter on ground for a safe maintenance, 

disconnect any power supply. 

2. In accordance with the procedures given in the A119/AW119MKII 

Maintenance Manual remove the pilot doors. 

3. Position the left pilot door on the work bench. 

NOTE

In order not to damage the window put on 

the work bench a protective sheet. 

4. With reference to figure 1 check the door to verify the presence 

of bonding between seal (3) and window (4) in the junction area 

of the seal (internal and external side). 

If there’s presence of bonding perform steps 21., 22., 23. and 24. 

of this Bollettino. 

If there’s no presence of bonding perform step 5. and following of 

this Bollettino. 

5. With reference to figure 1 pull the seal filler (2) then remove it 

from the seal (3). Discard the seal filler. 

6. Hold the window (4) externally to make sure that it does not fall 

down. 

7. Carefully push the window (4) outboard. Remove the window (4) 

and the seal (3) from the door structure (1). 

8. Remove the seal (3) from the window (4). 

9. Clean the window (4) and the seal seat on the door structure (1) 

with a clean cloth moistened in the TT-N-95 TY 2 Aliphatic 

Naphtha. Dry the cleaned area with the clean cloth. 

10. Clean the seal (3) with a clean cloth moistened in the TT-N-95 

TY 2 Aliphatic Naphtha. Dry the cleaned area with the clean 

cloth. 

11. Check the seal (3) for absence of damages. 

12. Install the seal (3) on the window frame of the door structure (1). 

NOTE

The tight grove of the seal (3) engages the 

door structure (1) (ref. figure 1 section A-A). 
B.T. 119-47 

Page 4 of 6 

13. Install the window (4) in the seal (3) previously on the window 

frame of the door structure (1), by means of a suitable plastic 

spatula. 

CAUTION

Perform the operation carefully to avoid 

damaging the seal. 

14. Apply the masking tape along the entire perimeter of the window 

(4) and of the door structure (1) near the seal (3) to prevent the 

same from being soiled with adhesive in the subsequent 

operation. 

15. On the external side of the door, bond the edges of the window 

(4) in the groove of the seal (3) with the 199-05-152 TY I CL 2 

adhesive (RTV732 or equivalent). 

NOTE

Clean any adhesive squeeze out with a 

clean cloth immediately. 

16. Bond the edges of the door structure (1) in the groove of the seal 

(3) with the 199-05-152 TY I CL 2 adhesive (RTV732 or 

equivalent). 

NOTE 1

Clean any adhesive squeeze out with a 

clean cloth immediately. 

NOTE 2

Leave adhesive to cure at room 

temperature for at least 24 hours. 

17. Repeat steps 14., 15. and 16. on the internal side of the door. 

18. Cut the seal filler P/N 999-1700-49-101G at a length of 2060 mm. 

19. Install the new seal filler (2) above mentioned, in the related 

groove of the seal (3) as follows: 

19.1 Apply a solution of soap and water with a brush into the groove 

where you must install the seal filler (2). 

19.2 Keep one end of the seal filler (2) in its position with your hand. 

19.3 Carefully put the seal filler (2) in the related groove of the seal (3) 

by hand. 
B.T. 119-47 

Page 5 of 6 

20. Remove the masking tape from the window (4) and from the door 

structure (1). 

21. In accordance with the procedures given in the A119/AW119MKII 

Maintenance Manual reinstall the left pilot door. 

22. Repeat steps from 3. to 21. for the right pilot door. 

23. Return the helicopter to a ready to flight condition. 

24. Record compliance with this Bollettino in the helicopter log book. 
B.T. 119-47 

Page 6 of 6 

FIGURE 1
Note: 

Remarks:

Informazioni: 

Information:

Al fine di gestire le varianti alla configurazione base, in relazione all’emissione del Bollettino Tecnico, preghiamo di voler compilare il presente modulo in tutte le sue parti e spedirlo all’indirizzo sopra indicato. Si ringrazia per la gentile collaborazione data. 

We request your cooperation in filling this form, in order to keep out statistical data relevant to aircraft configuration up-to-date. The form should be filled in all 

its parts and sent to the above address. We thank you beforehand for the information given.

MODULO APPLICAZIONE BOLLETTINO TECNICO

TECHNICAL BULLETIN COMPLIANCE FORM

Data: 

Date:

Numero: 

Number:

Revisione: 

Revision:

Prego spedire a questo indirizzo: 

Please send to the following address: 

AGUSTAWESTLAND S.p.A. 

CUSTOMER SUPPORT & SERVICES - ITALY

PRODUCT SUPPORT ENGINEERING DPT.

Via del Gregge, 100

21015 Lonate Pozzolo (VA) - ITALY 

Tel.: +39 0331 664600

Fax: +39 0331 664684

Telefono: 

Telephone:

Fax:

Data Applicazione B.T.: 

B.T. Compliance Date:

Denominazione Cliente ed Indirizzo: 

Customer Name and Address:

Modello Elicottero 

Helicopter Model S/N

Matricola 

Tail Number

Ore Totali 

Total Hours

Ore D.U.R. 

T.S.O.