# Agusta Bollettino Tecnico 139-085: No revision named - Rights: © Leonardo S.p.A. Filed by the FAA in regulations.gov docket FAA-2009-0168; AD 2009-15-14 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. - Document: [Agusta Bollettino Tecnico 139-085](https://openairdocs.org/service-documents/leonardo/sb-139-085.md) - Title as filed: U.S. DOT/FAA - Agusta BT 139-085 - Pages: 9 - PDF: https://openairdocs.org/files/sha256/de/76/de76fa5f2bf8ae9b1bdea57b83b0dac9b9086a262e1e2ada41e42e8ca786c684 - Page: https://openairdocs.org/service-documents/leonardo/sb-139-085/file/de76fa5f2bf8 ## Text Some pages are OCR from a scan. OCR can misread letters and numbers. Each page's text from the PDF; open the PDF at a page with #page=N. ### Page 1 BOLLETTINO TECNICO N° 139-085 The technical content of this document is approved under the authority of DOA nr. EASA.21J.005 DATE May 18, 2007 REV. / Compliance with this bulletin is: Page 1 of 8 SUBJECT: Fire Extinguisher Bottle Assy P/N 3G2620V00131 REASON: some bottles have been found with electrical receptacles installed on wrong outlet ends. HELICOPTERS AFFECTED: AB139/AW139 helicopters from S/N 31005 up to S/N 31067 (except S/N 31007) and S/N 31070, S/N 31071. NOTE Checks have to be extended to all bottles in stock COMPLIANCE: within 100 flight hours or 3 months from receipt of this Bollettino, whichever comes first. DESCRIPTION: this Bollettino is issued to provide the necessary instructions to verify the correct installation of electrical receptacles/connectors on the cartridges installed on the extinguisher bottles. REQUIRED MANPOWER: it is estimated that in order to accomplish this Bollettino 1 (one) man-hour is necessary. ### Page 2 B.T. 139-085 Page 2 of 8 WARRANTY: • If the fire bottle has to be replaced in accordance to this Bollettino Tecnico, upon request, the material shall be supplied on a free of charge basis by Agusta; • Upon application of this Bollettino, Customers are requested to submit to Agusta Warranty Administration a Maintenance Malfunction Information Report duly completed in all its parts. REQUIRED MATERIALS: P/N Nomenclature Qty 3G2620V00131 Fire extinguishing bottle assy AR SPECIAL TOOLS: N.A. WEIGHT AND BALANCE CHANGES: N.A. REFERENCES: 9 AW139 Aircraft Maintenance Publication (AMP) 9 AW139 Illustrated Tools and Equipment Publication (ITEP) PUBLICATIONS AFFECTED: N.A. COMPLIANCE INSTRUCTIONS: 1. Prepare the helicopter for a safe ground maintenance. Disconnect the battery and all the electrical power sources and/or the external power supply. 2. Put the left platform (GG-01-00), or an approved alternative, adjacent to the left side of the fuselage. Refer to Illustrated Tools and Equipment Publication (see data module n° 39-A-GG-01-00-00A-066A-A). 3. With reference to figure 1, open the access door 480BL. Refer to Aircraft Maintenance Publication (see data module n° 39-A-06-41-00-00A-010A-A). ### Page 3 B.T. 139-085 Page 3 of 8 4. With reference to figure 2, gain access to the Number 1 fire extinguishing bottle. 5. With reference to figure 3, make sure that: a. Receptacle P/N 30903914-1 is installed on outlet end P/N MS33514G12. NOTE Outlet end P/N MS33514G12 is the most distant from the central mounting lug of the bottle assy. b. Receptacle P/N 30903915-1 is installed on outlet end P/N AS4395G12. NOTE Outlet end P/N AS4395G12 is the closest to the central mounting lug of the bottle assy. 6. If the receptacles are found to be inverted, replace the defective bottle with a bottle P/N 3G2620V00131 having the receptacles in the proper position. Refer to Aircraft Maintenance Publication (see data modules n° 39-A-26-21-01-00A-520A-A and n° 39- A-26-21-01-00A-720A-A for Number 1 fire extinguishing bottle and data modules n° 39-A-26-22-01-00A-520A-A and n° 39-A-26-22-01-00A-720A-A for Number 2 fire extinguishing bottle). NOTE Bottles suspected to have the aforementioned defect are identified with S/N less than 56822B1 (bottle S/N coding is as XXXXXB1 and is located on the bottle placard shown in figure 4). 7. Report any finding related to this Bollettino to AgustaWestland Customer Support Engineering. Contact AW139 Customer Support Engineering (aw139.mbx@agustawestland.com). 8. With reference to figure 2, gain access to the Number 2 fire extinguishing bottle and repeat steps 5. thru 7. ### Page 4 B.T. 139-085 Page 4 of 8 9. Return helicopter to flight configuration. 10. Repeat steps 5. thru 7. to check the correct installation of spare bottles P/N 3G2620V00131 kept in stock. 11. Record for compliance of this Bollettino. ### Page 5 (OCR) B.T. 139-085 360AL 313AL 310AL 480BL 480AL 471AL 184BR 184AR 474BL 461 Al 462AR 473BR 473AL Figure 1 Page 5 of 8 ### Page 6 B.T. 139-085 Page 6 of 8 Figure 2 NUMBER 1 FIRE EXTINGUISHING BOTTLE NUMBER 2 FIRE EXTINGUISHING BOTTLE ### Page 7 (OCR) B.T. 139-085 ESDD5E005-0t 30903914-1 30903914-1 Conical Outlet Straight Outlet 30903915-1 CAUTION HE MOY YRUTALLATITVE Figure 3 Page 7 of 8 ### Page 8 (OCR) B.T. 139-085 PAT. NO. CHARGE DATE EXTINGUISHER FSCM 05167 IDENTIFICATION PLACARD CAUTION SERIAL NUMBER LOCATION RE EXTINGUISHER SCIENTIFIC FSCM 05167 Division AL NO. PAT. NO. 8-1-20 CHARGE DATE GROSS WT PRESSURE PSIG 70 F 3, 129, 76! L88 PAT. NO & OUTLETS CARTRIDGE WITH WITHOUT Figure 4 Page 8 of 8 ### Page 9 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 presen- te 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: AGUSTA S.p.A. VICE DIREZIONE GENERALE CUSTOMER SUPPORT Via per Tornavento, 15 21019 Somma Lombardo (VA) - ITALY Tel.: +39 0331 711100 Fax: +39 0331 711397 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. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.