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1 МИНИСТЕРСТВО ТРАНСПОРТА РОССИЙСКОЙ ФЕДЕРАЦИИ (МИНТРАНС РОССИИ) ФЕДЕРАЛЬНОЕ ВОЗДУШНОГО (РОСАВИАЦИЯ) АГЕНТСТВО ТРАНСПОРТА Ленинградский проспект д. 37 Москва ГСП Телетайп Тел. (499) Факс (499) emai1: r2v3bjl{in!! Д C fr"г C /.j/ J "'.!D. 1'7:1L Oд /? HaNQ: _ от _ Руководителям межрегиональных территориальных управлений воздушного транспорта Руководителю ГосНИИ ГА Направляю Вам аварийный сервисный бюллетень компании Eurocopter одобренный авиационной администрацией Франции для вертолетов Eurocopter AS350 и AS550 дляруководства. Приложение: Аварийный сервисный бюллетень NQ дляas350 NQ дляas550 на 19 листах Заместитель начальника Управления поддержания летной годности воздушных судов В. В. Кудинов Захаров В. Д. е499) [оплг МТУВТЦР Ilвход.N От.. J'j.. Ей2071' На истах i Приложение на_листах _._ I МТУ8ТЦР ФАВТ Вход. NQ dи. От Т:?_ 20/7;./ На Ut./J. листах I Приложение нti_ Листах I.._J

2 ..._. г f A L. SUBJECT: TIME LIMITS MAINTENANCE CHECKS EnginetoMGB coupling For the attention of Check of the hydraulic ритр drive bearing оп single hydraulic helicopters АТА: 63 AlRCRAFТ Verslon(s) NUMBER CONCERNED CMI MllltalY АSЗ ВВАВВВ1В2ВЗD L1 AS А2С2СЗU2 Revision No. Date of issue Revision О Revision Revision Summary: Check of 1he condi1ion of the hydraulic pump drive pulley bearing POST МОD оп single hydraulic helicopters. Reason for last Revision: The purpose of Revision 2 of this ALERT SERVICE BULLETIN is 10: reduce the 1ime limit for 1he first check о' p01entially indented bearings from 155 flying hours to 90 flying haurs make the гетоуаl о' hydraulic pump drive assembiies mandatory if they аге equipped with а potentially indented bearing in order to replace i1 modify the checking procedure far the bearing Ьу introducing а spring balance check cancel 1he periodic check еуегу 25 flying hours [ог helicopters with а hydraulic pump drive assembiy support whose P/N is followed Ьу the letter "V". Compliance: EUROCOPTER renders compliance with this ALERT SERVICE BULLETIN mandatory except for paragraph 3.0. Revision О Revision "..."..' This document is available оп the internet: J.'/\'!.1I\'.АlЛосолtег.:;.

3 I I р 1. PLANNINGINFORMATION 1.А. EFFECTIVIТY 1.А.1. Hellcoptersllnstalled eq ulpment Single hydraulic helicopters (РАЕ МОО ОР3346 ог ОР3082) which embody modification (new hydraulic ритр drive) and аге equipped with а hydraulic ритр drive assembiy indicated in paragraph 1.А.2. 1.А.2. Noninstalled equlpment НОТЕ1 Re(er to the aircraft individual ювовсиоп record (МОй record) and the aircraft log book to identi(y the actual configuration о( the helicopter. НОТЕ2 Modification is proposed as а retrofit оп AS350 he!icopters through Service Bulletin No а/ Hydraulic ритр drive assembiy P/N 350А equipped with а potentially indented bearing. The potentially indented bearings аге thase with а Serial Number (S/N) lower than ог equal to except for those bearings whose S/N is listed in the Аrшsшdiх. ы Hydraulic ритр drive assembiy P/N 350А equipped with а nonindented bearing (Serial Number (S/N) higher than ог listed in the Аррепфх) and whose Part Number (P/N 350А ) far the ритр support is not followed Ьу the letter "V" ASSOCIATED REQUlREMENТS 1.С. Not app/icabie. REASON НОТЕ3 The hydraulic рumр drive assembiies whose риmр support PIN is (o//owed Ьу the letter "V" аге not concerned Ьу this мея: вгюлсе воиепн. EUROCOPTER has Ьееп informed of several cases of hydraulic ритр drive belt failure caused Ьу seizure of the hydraulic ритр drive pulley bearing. These events took place оп hydraulic ритр assembiies POST МООО For helicopters with а single hydraulic system loss of the hydraulic ритр creates а loss of hydraulic assistance leading to ап increase in loads оп the flight controls and а landing as soon as possibie in compliance with the Flight Мапиаl (FLM).. Revision О Revision This document is available оп the internet: Page 2/19 "''''IW.euroqopter.comiiecl1!'ub

4 ". For this reason EUROCOPTER has decided to reduce the time limit between checks оп the bearing. The check is to ье carried out еуегу 25 flying hours instead of the 150 Ilying hours ог 12 months (the first limit reached is applicabie). 'П addition а new procedure for checking the bearing has Ьееп defined. Consequently EUROCOPTER makes compliance with the new bearing check time limit mandatory. Revision 1 II deterioration is lound during the check 01 the bearing it is now possibie to replace only the bearing Ьу returning the hydraulic pump drive to EUROCOPTER ог опе 01 its DIevel approved centers. Revision 2 Investigations have shown that some bearings were marked during assembiy 01 the hydraulic pump drive assembiy (indentation phenomenon). This indentation тау cause premature damage to the bearing. The potentially indented bearings have Ьееп identilied and аге indicated in paragraph l.а.2.а. Furthermore these investigations have underlined the risks 01 seizure for bearings whose dimensional tolerances сап lead to а high level of preioading. 'П these conditions the checking procedure for the bearing has Ьееп improved through the introduction о а load check using а spring balance. Consequently EUROCOPTER makes the removal of hydraulic pump drive assembiies mandatory if they аге equipped with а potentially indented ог heavily preioaded bearing in order to replace it. Revision 2 о' this ALERT SERVICE BULLETIN affects compliance with the previous revisions. т.п DESCRIPТlON Compliance with this ALERT SERVICE BULLEТIN consists in introducing: а new bearing check time limit at 25 flying hours [ог hydraulic pump drive assembiies equipped with а potentially indented bearing а new procedure for checking the bearing. Compliance with Revision 2 о' this ALERT SERVICE BULLETIN consists in: reducing the time limit for the first check о potentially indented bearings 'гот 155 flying hours to 90 flying hours. making the removal о' hydraulic pump drive assemblies mandatory " they аге equipped with а potentially indented bearing im proving the checking procedure for the bearing Ьу introducing а spring balance check cancelling the periodic check every 25 flying hours юг hydraulic pump drive assembiies equipped with а nonindented bearing whose average checking value оп the spring balance is lower ог equal to 6 N (1.348 Ibf). Revision О Revision Page 3/19 " ThiS document is available оп the iпtегп"е'.._w=." 1. A\aV А81'". '

5 I':"'$>.;'_ 1 1.Е. COMPLIANCE. 1.Е.1. Compllance at the works Not applicabie. 1.Е.2. Compliance In servlce The work оп the helicopter is to ье pertormed Ьу the operator. Helicopters/installed eguipment: Refer to the flow chart below. НОТЕ4 The beaгing is а component which must Ье monitored in opeгation (OТL) гefer to the helicopter documents to find its S/N. If in doubt the SIN сап Ье checked direct/y оп the beaгing. Revision О Revision This document is available оп the internet: Page 4/19 IN"w.elirocQ{)ter.com/(ec'ww

6 1.А.2.а. Potentially indented bearing. (S/N :0; ехсерт the S/Nos. listed in the АPIеГ1фХ). 1.А.2.Ь. Nonindented bearing (S/N> or listed in the APPSl1di:<). Вearing specified in paragraph 1.А.2.а. ог unidentifiabie Оп receipt of revision 2 identify the S/N and the Ьеагiпg's number of FH Bearing specified in paragraph 1.А.2.Ь. s; 90 flying NO YES s; 155 flying hours? hours? YES 1'1\ т= 1 at the latest at within 1О flying hours 165 flying following receipt of revision at the latest at hours 2 without exceeding flying flying hours since the last hours check of the bearing. 1 Comply with paragradh З. up to 3.В.2.Ь. (included). I Ir Bearing + Bearing specified in Interpretation of the results; paragraph I+specified in Spring balance load value 1.А.2.а.ог paragraph 25 flying 1.А.2.Ь. unidentifiabie I hours I + + s; 6 N > 6 N (1.348IЫ) > 12 N s;6n >6N (1.348IЫ) and (2.697IЫ) (1.348IЫ) (1.348IЫ) s; 12 N (2.697 'ьп Complywith i Comply with Qgrggrgphs at 400 flying hours l2aragraghs.b.2.q nq ава ог at the latest Ьу З.В.2.С and March (the 1 first limit reached is Mark the pump applicabie) support assembiy as YES S; Marc/i рег 2iaragriaph З.Q. ОА ? I l NO Replace the bearing as рег paragriaph ; End of compliance with this ALERT SERVICE BULLETIN J Revision О Revision

7 Noninstalled eguipment: а/ If the Serial Number (S/N) о' the hydraulic pump drive assembiy bearing is indicated in paragraph 1.А.2.а. (potentially indented bearing): Веюге installation and at the latest Ьу March return the hydraulic pump drive assemblies as рег paragl'aph 2.0. of this ALERT SERVICE BULLETIN. ь/ If the Serial Number (S/N) of the hydraulic pump drive assembiy bearing is indicated in paragraph 1.А.2.Ь. (поп indented bearing): I 1.F. Before installation check the bearing as рег Qar'agraph 3.В.2.Ь.. If the average load value оп the spring balance is higher than 6 N (1.348 Ibf) replace the bearing as рег Dагаагарп 2.0. of this ALERT SERVICE BULLETIN. APPROVAL Approval Not applicabie. Арргоуаl о modi'ications: о this document: The technical in'ormation contained in this ALERT SERVICE BULLEТIN Revision Оwas approved оп February under the authority о EASA Design Organization Approval No. 21J.056 'ог helicopters о civil versions subject to ап Airworthiness Certi'icate. The technical in'ormation contained in this ALERT SERVICE BULLETIN Revision Оwas approved оп February under the prerogatives о the recognition о design capability FRA21J002DGA [ог French Government helicopters. The technical information contained in this ALERT SERVICE BULLETIN Revision Оwas approved оп February Ьу the EUROCOPTER Airworthiness Department 'ОГ export military versions. The technical in'ormation contained in this ALERT SERVICE BULLETIN Revision 1 was approved оп June under the authority о EASA Design Organization Approval No. 21J.056 [ог helicopters о civil versions subject to ап Airworthiness Certificate. The technical information contained in this ALERT SERVICE BULLETIN Revision 1 was approved оп June under the prerogatives of the recognition of design capability FRA21J002DGA for French Government helicopters. The technical in'ormation contained in this ALERT SERVICE BULLETIN Revision 1 was approved оп June Ьу the EUROCOPTER Airworthiness Department [ог export military versions. 8w Revision О Revision

8 . The technical information contained in this ALERT SERVICE BULLEТIN Revision 2 was approved оп November under the authority of EASA Design Organization Арргоуаl No. 21J.056 [ог helicopters of civil versions subject to ап Airworthiness Certificate. The technical information contained in this ALERT SERVICE BULLETIN Revision 2 was appгoved оп November under the prerogatives of the recognition of design capability FRA21 J002DGA tor French Government helicopters. The technical information contained in this ALERT SERVICE BULLETIN Revision 2 was approved оп November Ьу the EUROCOPTER Airworthiness Department юг export military versions. 1.G. MANPOWER Р' For?mliane with this ALERT SERVICE BULLETIN EUROCOPTER recommends the following personnel.f quаllflсаtюпs. Qualification: 1 Mechanical Technician. шthe time for the operations is given (ог information purposes [ог а standard configuration. Time 'ог operations: approximately 2 hours....." I. 1.Н. WEIGHT AND BALANCE. Not applicabie EFFECТ ON ELECТRICAL LOADS Not аррйсао'е. 1.J. SOFТWARE MODIFICATION EMBODIMENТ RECORD Not applicabie. 1.К. REFERENCES I The documents required (ог compliance with this ALERT SERVICE BULLETIN аге as tollows: АММ: : Geneгal Mechanics Systems General safety instгuctions Mechanical assembiies АММ: : MGB/Engine Coupling Аетоуа/ MGB/Engine coupling АММ: : MGB/Engine Coupling Installation MGB/Engine coupling АММ: Ь: MGB/Engine Coupling Inspection criteria Hydraulic pump drive belt POST МОО МЕТ: : Rotors General General instructions МЕТ: : Main rotor drive MGB Engine coupling: Аетоуаl Installation МЕТ: : Main rotor drive EngineMGB coupling: Condition check МТС: : Joining Joining Ьу bolts and nuts МТС: : Safetying and locking assembiies Safetying with lockwire МТС: : Safetying and locking assembiies Safetying with lockplates МТС: : Safetying and locking assembiies Safetying with cotter pins МТС: : Safetying and locking assembiies Safetying with Loctite compound МТС: : General rules applicabie to aircraft Monitoring of parts in operation marking service life customization Revision О Revisio n page7/1j..... ;. This document j"':"' is available оп the internet. =IN.и..'М'"".""е..I=;гос"""qp=tе"г.""с()ш..ГГUC1л"".ес""IW""ub...:I!!!lllfi'.....

9 с:. гл. DOCUMENТS AFFECTED I Not applicabie. 1.М. INТERCHANGEABILIТY OR MIXABILIТY OF PARTS Not applicabie. I " Revision О Revision

10 ;._.. ' _.." ' ;' ;1!.III"!ljI 2. MATERIAL INFORMATION 2.А. MATERIAL: PRICE АУ AlLA81LIТY PROCUREMENT For апу iпfогmаtiоп сопсегпiпg the kits and/or соmропепts contact the EUROCOPTER Network Sales & Customer Relations Department. Order the required quantity (unless otherwise specified) from EUROCOPTER EtabIissement de Marignane Direction Ventes et Relations Client (ЕСА) MARIGNANE СЕDЕХ FRANCE...: НОТЕ1 Оп the purchase order p/ease specify the mode о' transport the destination аnd the seria/ numbers о' the helicopters to Ье mоdшеd. НОТЕ2 For ALERT SERV/CE BULLEТ/NS order Ьу: Те/ех: HEL/COP F Fax: +33 (0) INFORMATION CONCERNING INDUSTRIAL SUPPORT For апу information concerning damage detected оп the hydraulic pump drive bearing: Contact the EUROCOPTER Customer Service Technical Support Department: Tel.: +33 (0) Fax: +33 (0) С. MATERIAL REQUIRED FOR ЕАСН HELICOPTER/COMPONENТ Kits ог componenls 10 ье ordered for опе hеliсщ>tег ог опе assembiy: Deslgnatlon Qty New р/н Item Former P/N t Instructlons I 1. Lockwasher Cotter pin Revision О Revision СА060 EN СА060 EN Scrap Scrap page9/1.: This document is available оп the internet:.!!""mlои.\.еs:;. I'!L1'ГОС!!;!'Qj.:!#.'щtег.!.<.!..сom.шI!.!.Е:1ес!<!"I1f".JL1 :.ъill!!!ij )' i8'".:"""....

11 Material to Ье ordered separately: Designation Qty New P/N Item Former P/N Instructlons Hydraulic pump drive assembiy NR 350А А Refer to paragraph 2.D. Products to ье ordered separately:. I. I!. 2.D. Refer to the Work Cards and Tasks specified in this ALERT SERVICE BULLETIN апd the list below: Deslgnatlon Qty Product Рап Number СМ Item grease NR G355 СМ116 2 Lоwstгепgth threadiock compound NR Loctite 222 СМ621 3 Lockwire NR EN СМП6 4 The products сап Ье ordered separately from the INTERTURBINE AVIATION LOGISTICS сотрапу. Website: 1lttр:iЛv\'VW. inter1urblne.coll1 Telephone: AOG: Special tools: Designatlon aty Tool P/N or equlvalent Spring balance Off the shelf 12. MATERIAL ТО ВЕ RETURNED The replacement of the hydraulic pump drive assembiy Ьеагiпg must Ье carried out Ьу EUROCOPTER ог опе of its DIevel approved centers ассогdiпg to the procedure below. Contact the EUROCOPTER Warranty Service ог your usual contact person at the DIevel approved center. The following information MUST Ье given: Customer сопtаct details. Helicopter type and version. Number of flуiпg hours of the helicopter. Рап Number (P/N) of the hydraulic pump drive assembiy. Number of flуiпg hours of the hydraulic pump drive assembiy. Reason for removal: AS350: Соmрliапсе with ALERT SERVICE BULLETIN No AS550: Соmрliапсе with ALERT SERVICE BULLETIN No Your commercial representative will then fill in ап АМА (Rеtuгп Material Authorization). This will then Ье transferred to you and is to Ье attached to your hydraulic pump drive assembiy when it is sепt to EUROCOPTER ог the DIevel approved center. hem Rеvisiоп О Rеvisiоп

12 V.. ; "''.'..VWV &.='". V.A' '/. :"1*'" I.ар_!!. I З. ACCOMPLISHMENT INSTRUCTIONS З.д. GENERДL Read and comply with the general mechanical instructions as рег МЕТ Work Card ог АММ Task Read and comply with the instructions concerning assembiy Ьу bolts and nuts as рег МТС Work Card Read and comply with the general instructions for safetying with lockwire as рег МТС Work Card З.В. OPERДTIONДL PROCEDURE Preliminary steps. : 1: I Install the access equipment. Open the MG8 cow/ings and Engine cow/ings Procedure а. Uncoup/ing of the hydraulic pump (Figures 2 and 3) Remove the Ье/. (а) from the drive pu//ey (v) of the hydrau/ic pump (Ь): (Figure 2) lubricate the threaded part of the tensioner (k) with grease (2) cut and remove the /ockwire /oosen the nut (т) remove and scrap the то pins (р) loosen the пшв (q) without removing them remove and discard the pin (w) /oosen the nut (u) without removing it u5ing the nut (п) reduce the tension in the be/t (а) if necessary remove the bo/t5 (t) and пшв (q) in order to faci/itate the separation of the be/t (а) pivot the hydrau/ic pump pu//y a5sembiy 50 that the be/t (а) is separated from the pu//ey (v) in5ta// the bo/t5 (t) in order to maintain the hydrau/ic pump pu//ey as5embiy. Uncoup/e the pu//ey (v) from the hydrau/ic pump (Ь): (Detai/ А Figure 3) cut and remove the /ockwire from the screws (с) remove the screws (с) and lockwashers (d) scrap the lockwa5hers (d) remove the cover (е) and e/astic coupling (f) remove the screw (g) and washer (h) remove the coup/ing shaft (i). Revision О Revision

13 .. '. I 3.В.2.Ь. Checkinq the bearinq (Figures 1 and 5) 6 CAUTION WAIT FOR 1 HOUR MINIMUM AFТER SТOPPING ТНЕ HYDRAULIC PUMP BEFORE CARRYING OUT ТНЕ FOLLOWING CHECKS. 6 CAUTION FOR BEARINGS WHICH REACH ТНЕ LIMIT OF БОа FLYING HOURS OR 24 MONTHS CARRY OUT ТНЕ СНЕСК BEFORE GREASING ТНЕ BEARING. Using а mirror and а light source visually check the leaktightness of the hydraulic pump drive bearing: (Figure 1) confirm the good condition of the 'ф seals (г) of the four regreasing orifices: loss of grease due to wear tear ог cracking of the lips confirm there аге по runs of rust оп the lip seals (г) confirm there аге по traces of overheating (brown coloring) of the inner ring of the bearing confirm the good condition of the sealing flanges (s): по distortion impacts wear tears cracks ог loss of grease Figure 1 Perform а sensitive check of the hydraulic pump drive bearing:. Ьу rotating it manually (over several fuh turns) check there аге по friction points brinelling ог noises from the bearing Revision О Revision

14 . I I Interpretation о' the results: if апу о' the aforementioned deteriorations is found replace the hydraulic pump drive assembiy as рег paragraph 3.В.4. if по deteriorations аге found measure the loads оп the hydraulic pump drive bearing using а spring balance (zz): The spгing balance used to check the tension in the be/t (а) сап a/so Ье used to measuгe the loads. Tighten to contact screws (т) (п) (q) and (u) (Figure 1) in order to immobilize the assembiy install the two screws (с) (Figure 5) оп the pulley (у) leaving some play using а piece о' lockwire create а link (х) install the link (х) between опе of the screws (с) and the hook of the spring balance (zz) position the spring balance (zz) according to Figure 5 confirm that when there is по charge the balance indicates zero. progressively pull оп the spring balance (zz) and record the maximum value displayed as soon as the pulley (у) starts to turn repeat the operation two тоге times while changing the angular position 01the pulley (у). calculate the average value from the three values: average = (value No. 1 + value No. 2 + value No. 3) 13 Interpret the results as рег paragraph 1.Е.2. 3.В.2.С. Coupling of the hydraulic ритр (Figures 2 and 3) "о. " Loosen nuts (т) (п) (q) and (и). Аетоуе the two screws (с) installed оп the pulley (у). If necessary гегпоуе the bolts (t) in order to facilitate the positioning of the belt (а) оп the pulley (у). Position the belt (а) оп the pulley (у). Install the bolts (t) if they were previously removed. Couple the hydraulic pump (Ь): (Detail А Figure 3) install the coupling shaft (i) using the screw (g) washer (h) and grease (2) safety the screw (g) using lowstrength lockwire (3) as рег МТС Work Card torquetighten the screw (g) as рег Figure 3. install the elastic coupling (f) оп the drive shaft (i) apply grease (2) to the screws (с) install the соуег (е) using the screws (с) and lockwashers (1) torquetighten the screw (с) as рег Figure 3. safety each of the screws (с) with the lockwasher (1) as рег МТС Work Card safety the screws (с) together using lockwire (4). Stretch the belt (а) оп the pulley (у): (Figure 2) lubricate the threaded part о' the tensioner (k) tighten to contact nuts (q) and (u) using the nut (п) adjust the tension in the belt (а) check the tension of the belt as рег МЕТ Work Card ог as рег АММ Task Ь torquetighten nuts (q) as рег Figure 2 safety nuts (q) using cotter pins (5) as рег МТС Work Card torquetighten the nut (u) as рег Figure 2 lock the nut (u) using the cotter pin (5) torquetighten the пш (т) as рег Figure 2 while holding nut (п) in place safety nuts (т) and (п) using lockwire (4). Revision О Revision А" TSdocument is aailabie оп the i:ternet.. AW.t1Ii i. r Page 13/1:.)'". """VI=;.".."" =e..=iгоё"""ор=t"".гсq!m"!.!t. 'mс.ю... ii!ю]шm.....

15 ....'IS " ". 3.В.3. Final steps I Close the MGB cowlings and Engine cowlings. Remove the access equipment. 3.В.4. Replacing the hydraulic pump drive assembiy (Figure 4) Remove the hydraulic pump drive assembiy as рег МЕТ Work Card ог АММ Task Return the hydraulic pump drive assembiy for replacement of the bearing Ьу sending the hydraulic pump drive assembiy to EUROCOPTER ог опе of its DIevel approved centers referring to рагаgr'эрh 2. О. of this ALERT SERVICE BULLETIN. Install the hydraulic pump drive assembiy as рег МЕТ Work Card ог АММ Task During installation of the hydraulic pump drive assembiy ensure that the tensioner yoke is correctly installed in compliance with Figure 4. з.с. IDENТIFICATION Identification of this document: Record first compliance with this document with the revision number in the helicopter documents. For hydraulic pump drive assembiies indicated in paragraph 1.А.2.Ь. whose bearing load value is lower than ог equal to 6 N (1.348 Ibf): mark the letter "V" оп the pump support after the Part Number using а permanent marker ог stamp as рег МТС Work Card (Detail В Figure 5). з.d. OPERATING AND MAINТENANCE INSTRUCTIONS Operating Not applicabie. Maintenance Instructions instructions Refer to Service Bulletin No for АSЗ50 helicopters. Refer to Service Bulletin No for AS550 helicopters.. J Revision О Revision "

16 :.L'\\ДJ. осc1l\ JVJ.а.Л1;:.L ' '. 'A.A.. ==I GЗ N.m in.ib. п I 4 k 2 I г:1l а ь u р.t. { N.m I зin.IЬ. < N.m in.ib Figure 2 Revision О Revision Page 15/1 This document is available оп the internet: INИ/w_е. t}г{хорtег.сoгn/[р'с{i{)/jь.... II!IIII[II"".' т АВ'" шlllllll[i".1""....

17 DETAIL А f. c I 2 4 I GЗ55 е 222 i 2 I г=1l I 3 36 N.m in.ib. 253 N.m sin.lb Figure 3 " Revision О Revision

18 I"S&.'.. l:!.t\ul'.1 I!.1.1dA.t:'.L..1.1U.1'11 UJ:.I". ' '.J..f.V.:Jii.;." 'V..L..J..... I " Revision О Revision Figuгe 4

19 с р v х zz DETAIL В. 8r Revision О Revision Figure 5 ".'

20 .. Ir 4. APPENDIX List of bearing Serial Numbers (S/N) lower than not concerned Ьу the mandatory replacement of the bearing: Revision О Revision Serial Numbers (S/N) / / Return to paragraph Page 19/1' Thiсосшгепт l'."1 00 "" ппегпет:._. """"_ 1.А.. '." '!I!!!!!I]')" нзi!!iiшшр'....'