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ALERT
TRANSLATION OF
BOLLETTINO TECNICO N° 109SP-032
The technical content of this document is approved under the authority of DOA nr EASA.21J.005.
DATE August 05, 2011
REV. xxxxxxx
Compliance with this bollettino is:
ALERT Page 1 of 6
SUBJECT: INSPECTION OF THE LEFT ELEVATOR ASSY P/N 109 -0200-02-803 AND RIGHT ELEVATOR ASSY P/N 109-0200-02-804.
REASON: Introduce an inspection to the subject elevators to verify the presence of cracks on the upper skin.
HELICOPTERS AFFECTED:
All the Agusta AW109SP helicopters.
COMPLIANCE:
For those left elevator assy P/N 109-0200-02-803 and/or right elevator assy P/N 109-0200-02-804 having less than 400 (four hundred) flight hours:
at reaching of 400 (four hundred) flight hours within and not later than 30 (thirty) flight hours and subsequently each 50 (fifty) flight hours.
For those left elevator assy P/N 109-0200-02-803 and/or right elevator assy P/N 109 -0200-02-804 having more or equal than 400 (four hundred) flight hours:
within and not later than 3 0 (thirty) flight hours after the receipt of this Bollettino and however within and not later than November 30, 2011, and subsequently each 50 (fifty) flight hours.
DESCRIPTION:
A case of fracture of the left elevator along the riveting of the upper skin to the fourth rib has been reported on an A109S helicopter.
The performed investigations have revealed that the fracture reported on the elevator is due to fatigue.
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 .
An Company Via GiovanniAgusta, 520 21017 Cascina Costa di Samarate (VA) Italy T el.: +39 0331-229111 - Fax: +39 0331-229605/222595
B.T. 109SP-032
Page 2 of 6
The left and right elevators installed o f the A109S helicopter s are very similar to the left elevator assy P/N 109-0200-02-803 and right elevator assy P/N 109-0200-02-804 of the AW109SP helicopters.
This Bollettino is issued in order to provide the necessary instructions to perform a visual inspection with a 5÷10 magnification lens to verify the presence of cracks on the upper skin of the left elevator assy P/N 109- 0200-02-803 and right elevator assy P/N 109 -0200-02-804, in correspondence of the riveting of the upper skin to the fourth rib.
In case of doubt about the presence or absence of cracks are also given instructions to carry out an inspection penetrant.
REQUIRED MANPOWER:
Negligible.
In case of liquid penetrant inspection 1 (one) hour for each elevator assy.
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 Agusta upon Customer’s request, except for consumable materials.
Upon application of this Bollettino, Customers are requested to submit to Agusta Warranty Administration the Technical Bulletin Compliance form, attached to this Bulletin duly completed in all its parts, and relevant M.M.I.R. (Maintenance Malfunction Information Report).
REQUIRED MATERIALS:
The following materials could be required for compliance with this Bollettino:
P/N DENOMINATION Q.TY 109-0200-02-803 Left elevator assy 1 109-0200-02-804 Right elevator assy 1
The following consumable materials are required for compliance with this Bollettino:
SPECIFICATION DENOMINATION Q.TY TT-N-95 type 2 Aliphatic Naphtha A.R.
(code 531055030) Commercial Gauze A.R.
(code 590164695)
SPECIAL TOOLS:
The following special tools are required for compliance with this Bollettino:
P/N DENOMINATION Commercial 5÷10 magnification lens P6R Penetrant ARDROX 9PR5 Solvent ARDROX 9D1B Developer ARDROX
B.T. 109SP-032
Page 3 of 6
P/N DENOMINATION Commercial Fine-pointed brush Commercial White light source of at least 1000 lux Commercial Soft brush
WEIGHT AND BALANCE CHANGES:
N.A.
REFERENCES:
0B-A-AMP-00-X Maintenance Publication.
PUBLICATIONS AFFECTED:
0B-B-AMPI-00-P-EASA Maintenance Planning Information;
0B-B-AMPI-00-P-FAA Maintenance Planning Information;
0B-C-AMPI-00-P-EASA Maintenance Planning Information;
0B-A-AMP-00-X Maintenance Publication.
COMPLIANCE INSTRUCTIONS:
(See figure 1)
1. Prepare the helicopter on ground for a safe maintenance, disconnect any power supply.
2. Gain access to the upper side of the left elevator assy P/N 109- 0200-02-803 and accurately clean inspection area using a gauze soaked in aliphatic naphtha (ref. figure 1).
3. Using a 5 ÷10 magnification lens perform a visual inspection to verify the presence of cracks in the elevator upper skin in correspondence of the fourth rib fixing rivets line in the area shown in figure 1.
3.1 In ca se on the elevator upper skin there is NOT presence of cracks, no corrective action is required. P roceed as described in steps 4 and following.
3.2 In case on the elevator upper skin there is presence of cracks, contact the AgustaWestland, and the elevato r must be removed, in accordance with the instructions given in the 0B -A-AMP-00-X Maintenance Publication, to perform a repair.
3.3 In case of doubt about the presence of cracks on the elevator upper skin, proceed in the following liquid penetrant inspection:
CAUTION Personnel conducting the liquid penetrant inspection must be qualified in accordance with EN4179/NAS410A practise or other equivalent practise or standard.
B.T. 109SP-032
Page 4 of 6
3.3.1 If necessary clean again with aliphatic naphtha the area to inspect in order to remove the contaminants. Leave dry the aliphatic naphtha.
3.3.2 Outline the area to inspect using only tape in which the does not absorb the solvent.
NOTE The penetrant, the part to be inspected and the room temperatures shall be between 15÷45 °C.
3.3.3 Using a fine -pointed brush apply the P6R penetrant in all the area to inspect (ref. figure 1) for 30÷40 minutes dwell time.
3.3.4 Under a white light source of at least 1000 lux, remove excess penetrant firstly with a dry clean gauze and then a gauze dampened (NOT SOAKED) with 9PR5 solvent.
NOTE The solvent must never be poured directly over the area to inspect.
3.3.5 Repeat the removal of the excess penetrant with gauze dampened with 9PR5 solvent, until it was completely removed any residual background colour.
3.3.6 After complete evaporation of solvent, apply a thin uniform layer of 9D1B developer spraying it from a distance of 30÷40 cm. Prior to use shake the developer spray can for at least 1 minute.
CAUTION Accidental developer leakages require t he full clean of the part and the full re processing of the part.
3.3.7 After 10 minutes of developer dwell time, carefully check the inspection area (ref. figure 1) to interpret any red signs on a white background.
CAUTION The operator cannot wear sungl asses or photochromic lenses.
3.3.8 In case on the elevator upper skin there is presence of cracks, contact the AgustaWestland, and the elevator must be removed, in accordance with the instructions given in the 0B -A-AMP-00-X Maintenance Publication, to perform a repair.
B.T. 109SP-032
Page 5 of 6
3.3.9 After inspection, accurately clean the affected area from any used products residual with gauze soaked in 9PR5 solvent and eventually using a soft brush.
4. Repeat steps 2 and 3 for the right elevator assy P/N 109-0200-
02-804.
5. Return the helicopter to a ready to flight condition.
6. Record compliance with this Bollettino in the helicopter log book.
B.T. 109SP-032 INSPECT THIS AREA FOR CRAKS WITH 5÷10 MAGNIFICATION LENS OR WITH PENETRANT FOURTH RIB 60 mm VIEW LOOKING DOWN 109-0200-02-804 RIGHT ELEVATOR ASSY (SHOWN) 109-0200-02-803 LEFT ELEVATOR ASSY (OPPOSITE) FWD
UPPER SKIN CHORD LINE 625.0 (REF) C= FIGURE 1 Page 6 of 6
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:
AGUSTA 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.