CAATransltrfirstPage(RIGHT> - May 15/09 1 

Rolls-Royce Deutschland Ud & Co KG 

Eschenweg 11, Dahlewltz 

15827 Blankenfelde- Mahlow 

Germany 

Tel: +49 (0) 33-7088-1944 

Fax: +49 (0)33-7086-3276 

I Rolls-Royce 

P U B L C A T 0 N T R A N S M T T A L 

The technical Information contained In thls document Is approved under the authority 

of EASA Design Organisation Approval No. EASA.21J.065. 

TAY SERIES PROPULSION SYSTEM SERVICE BULLETIN 

ALERT 

This document transmits Revision 1 of Non-Modification Service Bulletin 

TAY-72-A1696. 

~: If the Initial Issue of this Non-Modification Service Bulletin is already 

incorporated, no further Operator action is required with this Revision. 

Oocyment History 

Non-Modification Service Bulletin Revision Status 

Ini-ti'al Issue Dec . 8/06 

Non- Modification Service Bulletin Reyisjon 1 

Remove 

All pages of the 

Non-Modification 

Service Bl:Jl teti'tf. 

Incorporate 

Pages 1 to 11 of the 

Non-Modification 

s~fr'\iiC e suneHn. 

Reason for change 

To change the 

C?_mp ~ ~11~~ .. c~ r .. o~ ~he Non-Modification 

Service Bulletin from 

RECOMMENDED to ALERT 

and to include some 

minor editorial 

changes. 

ALERT T A Y -72-A 1696 

Transmittal - Page 1 of 1 

RETAIN TIM I.ETTER OF TRANSMITTAl.- CHE~ THAT ALL PREVIOUS TRANSMITTIII..S HAVE BEEN INCORPORATED 

If •"Y havo not t>oen rooolvod ploa$G 0<1Vise1ho Publlc.rldon Servl.:os ll<lpotlmer1! 111 1M lol:o.Mng lddrosa: 

Roi<· Aoyc41)1c. PO 8cnc 31. Oert>y OE24 88.1. Eng'-'d or r>-rnal- adnni)Ublic.dcn royce com C Adls-~ O<Moclllanr! Ud & Co l<G (oale oc 111>0110) Pnrru!Oin Groat Bnta1t1. 

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Rolls-Royce Deutschland Ltd & Co KG EMP Key Service Bulletin Decision Proforma 

1 Is this SB the subject of an airworthiness directive? 

2 Does this SB affect safety? 

3 Does this SB affect reliability? 

(Will it reduce service disruption and/or improve on-wing engine life?) 

4 Does this SB provide a performance enhancement? 

5 Does this SB reduce cost of ownership? 

(Will It reduce shop vlslt costs?) 

6 Is the effect on performance significant? 

7 Is the SB covered by campaign action or is the SB the subject 

of a previous wor1d wide communication? 

8 Does the SB address a service problem, which affects most operators? 

9 Does the SB remove the requirement for routine inspection and/or is 

the cost of embodiment realised in a reasonable period of time? 

Decision EE-9: Comments/Justtficatlon: 

Teamleader I authorised Person 

10 Key SB 

11 No Key SB 0 

Recommended Level of Rework 

(8R715 only) 

L1 0 L2 0 L3 0 

First Engine SerlaUNo.: 

Refer to the NMSB. 

joate to EE-9: 27.02.2012 

Yes 0 goto 10 

No H._go to 2 

Yes ~~oto 10 

No go to 3 

Yes 0 go to 7 

No 0 g_o to 4 

Yes 0 go to 6 

No 0 goto 5 

Yes 0 go to 9 

No 0 goto 11 

Yes 0 go to 9 

No 0 goto 11 

Yes 0 go to 10 

No ·0 go to 8 

Yes 0 go to 9 

No 0 goto 11 

Yes 0 go to 10 

No 0 goto 11 

Name: 

Date: 

Verification PC-32: Comments (If different verification to EE-9 discuss with EE-9): 

Teamieader 

·· Key

I 

-SB

authorised 

· ······

Person) 

·· -·· ·-

Name~-:5. ~ 

~te: ·· U>hJ liz ... No KeySB 0 ..- J 

Verify Level of Rework 

(8R715 only) 

L1 0 L2 0 L3 0 

(Rerum sheet to the Se<voce Butlelin Group) 

Verification PC-31: Comments: 

(Teamieader I 

Fleet BUSiness Manaaerl 

Name: 

KeySB 0 

Date: 

No KeySB 0 

~haroe ~21g TIM 17l!! & !1~ l!!llxl 

(T eamleadet I 

Fleet Business Manager} 

Chargeable 0 

Non chargeable 0 VA 19-0256 issue 2008-07 July 2003 (Inform the SeMCe Bunetltl G<oop abOvt deCision 

t: !: 

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BodyFirstPageCRIGHT) - May 15/09 20001 

fFil II® TAY PROPULSION 

SYSTEM 

SERVICE BULLETIN 

ENGINE - TURBINE NOZZLE CASE ANP VANES-Hp AND LP - INSPECTION OF THE BOLTS WHICH ARE 

INSTALLED IN THE LPT STAGE 1 STATIC AIR SEAL AND OF THE BOLTS WHICH ARE INSTALLEp IN 

THE HPJ STAGE 1 AIR SEAL SUPPORT - NON-MOQlFICATION SERVICE BULLETIN 

1. Plaonjnq Information 

A. Effectivity 

(1) Gulfstream IV. 

Jay 611-8 Engines. 

For Engine Serial Numbers 16245, 16256, 16417, 16418, 16584, 16585, 

16639, 16640, 16701, 16702, 16813, 16814, 16853, 16854, 16879, 16880, 

16898, 16905, 16906, 16911, 16923, 16935 and 16936. 

Modules M04100AA, M04101AA, M04102AA and M04103AA (Combustion and HP 

Turbine Module> and Modules M05100AA, M05101AA, M05102AA and M05103AA (LP 

Turbine Module) . 

B. Concurrent Reauirements 

None. 

C. Reason 

It has become apparent that bolts, which are installed in the Low Pressure 

<LP) turbine stage 1 static air seal and in the High Pressure (HP) turbine 

stage 1 air seal support, have not been subject to a complete quality 

inspection. For this reason, bolts with reduced material properties may have 

been installed. Reduced material properties can result in a release of bolt 

parts. The release of the bolt parts does not have any effect on the engine 

function and operation but can cause damage to other engine parts. In order to 

prevent damage to other engine parts an inspection of these bolts is recommended~ ... · · ·· ·· · · · · 

Revision 1 of this Non-Modification Service Bulletin has been issued to change 

the Compliance category of the Non-Modification Service Bulletin from 

RECOMMENDED to ALERT. 

D. Description 

This Non-Modification Service Bulletin includes the procedure for the 

inspection of the bolts which are installed in the LP turbine stage 1 static 

air seal and of the bolts which are installed in the HP turbine stage 1 air 

seal support. 

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Dec . 8/06 TAY-72-A1696 1· 

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© Rolls-Royce Deutschland Ud & Co KG 

Page 1 of 11 

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E. Comoljance 

ALERT 

BodyPage<LEFT) - May 15/09 20002 

TAY PROPULSION 

SYSTEM 

SERVICE BULLETIN· 

This Non-Modification Service Bulletin must be accomplished on engines not 

later than 5500 cycles since the last engine shop visit completed before 08 

Dece11ber 2006. ~_/ / / 

F. Aoproval 

,./( ~ _.v.:::::Z-C-z ~~-~ .?./"

C('-

" ... ~ 

The technical content of this document is approved under the authority of EASA 

Design Organisation Approval No. EASA.21J.065. 

G. Manpower 

Estimated Man-hours: 

(1) In Service 

Not applicable. 

<2> At Overhaul/Shop Visit 

Applicable (Hours not affected). 

H. Materjal Price and Availability 

This is a technical document not a quotation; any prices in this 

Non-Modification Service Bulletin are given in good faith without engagement. 

The prices listed within the Material Information are at the year of 

Non-Modification Service Bulletin issue. 

For availability of spares, contact: 

Rolls-Royce pte 

Customer Account Manager 

Spares Support Group 

Derby 

Great Britain 

I. Tooljng Price and AvajlabilitY 

New tools are not required. 

J. Industry Support Information 

None. 

Dec. 8/06 

ERR Revision 1 

TAY-72-A1696 

Page 2 of 11 

© Rolls-Royce Deutschland Ltd & Co KG 

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Weight and Balance 

(1) Weight Change 

None . 

(2) Moment Arm 

No effect. 

(3) Datum 

ES2540 (PPS100) . 

Electrical Load Data 

TAY PROPULSION · SYSTEM 

SERVICE BULLETIN 

The aircr aft electrical load is not affected by this Non-Modification Service 

Bulletin. 

M. Software Accomplishment SummarY 

Not appl icable. 

N. References 

<1> Engine Manual - E-TAY-1RR, Chapters 72- 0Q-41, 72-00-52, 72-41-20 and 

72- 52- 10. 

0. Other Publicati ons Affect ed 

None . 

P. Interchangeability of Parts 

... . ...... No-t- ~Hected ·· · ............... ... ... · • • 0 . .. . • •••• ••••• ········· ... . .. ... .. .. .. . 

Dec. 8/06 

ERR Revision 1 ©Rolls_-Royce Deutschland Ud & Co KG 
BodyPage CLEFT) - May 15/09 20004 

2. Ma t eria l Informa tion 

A. Par ts to be Reolaced 

!PC New 

Fig/Item Part 

No . No. 

72- 41- 21 

01-535 EU10956 

01-550 BLT4937 

72-52-10 

01- 470 AS21910 

01-520 AS21909 

B. Ex g~ Ql !: Pi!f.:U 

TAY PROPULSION SYSTEM 

SERVICE BULLETIN 

Unit Pr ice 

<US 

Dollars> 

$ 25 .00 

s 43.00 

$ 13.50 

$ 12. 50 

Qty 

Per 

Eng. 

20 

24 

16 

8 

Key Wo rd 

Bolt 

Bolt 

Bol t 

Bolt 

Old 

Part 

No. 

EU10956 

BLT4937 

AS21910 

AS21909 

Instructions/ 

Dispositions 

{1) 

(1) 

(1 ) 

(1 ) 

Ref er to the related Manua l tasks given i n the Accomplishment Instruction of 

t his Non-Modification Service Bu lletin. 

C. I nstruction/Disposition Codes 

• 

(1) The replacement of the used part with t he new part is based upon the 

inspection result which has been found out duri ng the inspection 

instructed i n t his Non-Modification Service Bullet in. 

Dec . 8/06 

ERR Revisi on 1 

TAY-72-A1696 

Page 4 of 11 

© Rolls-Royce Deutschland ltd & Co KG 
BodyPage(RIGHT) - May 15/09 20005 

It TAY PROPULSION 

SYSTEM 

SERVICE BULLETIN 

3. AccomPlishment Instryctjon 

A. General 

(1) Obey all the WARNINGS and CAUTIONS in the procedures that are referred 

to. 

(2) Consumable Materials 

(a) Refer to the related Manual tasks given in this instruction. 

(3) Tools and Equipment 

<a> Refer to the related Manual tasks given in this instruction. 

B. Remove the Low Pressure CLP) turbine module fro• the engine (Refer to the 

Engine Manual, Chapter 72-00-52, TASK 72-00-52-000-000). 

C. Do an inspection of the bolts <72-52-10, 01-470> and (72-52-10, 01-520) which 

are instal led in the LP turbine stage 1 static air seal <72-52-10, 01-460) 

(Refer to Figure 1> 

<1> Do a visual inspection of the 16 bolts <72-52-10, 01-470) that attach the 

LP turbine stage 1 static air seal <72-52-10, 01-460> and the diaphragm 

interstage seal (72-52-10, 01-455) to the LP turbine stage 1 Nozzle Guide 

Vane <NGV) and air seal support <72-52-10, 01-440) 

<a> Examine the heads and the visible threads of the bolts <72-52-10, 

01-470) for discoloration and oxidation and record the results of 

the inspection in the Accomplishment Form on page. 11 

[1] If there is any bolt (72-52-10, 01-470> found brown or with a 

rough oxidized surface, replace the 16 bolts <72-52-10, 

01-470), P/N AS21910 <Refer to the Engine Manual, Chapter 

. ... 72.~52,1.0, TASK .. -72-52-'f.0-000-000· and··TASK ~52""'t0•400:.:.0QO> · 

<2> Do a visual inspection of t he eight bolts <72-52-10, 01-520) that attach 

the air static outer intersta~e seal <72-52-10, 01-510> and the air 

static inner interstage seal <72-52-10, 01-550) to the LP turbine stage 1 

static air sea l <72-52-10, 01-460) 

<a> Examine the heads and the visible threads of the bolts <72-52-10, 

01-520) for discoloration and oxidation and record the results of 

the inspection in the Accomplishment Form on page 11 

[1] If there is any bolt (72-52-10, 01-520) found brown or with a 

rough oxidized surface, replace the eight bolts <72-52-10, 

01-520>, PIN AS21909 (Refer to the Engine Manual, Chapter 

72-52-10, TASK 72-52-10-000-000 and TASK 72-52-10-400-000). 

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© Rolls- Royce Deutschland Ltd & Co KG 1

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TAY PROPULSION SYSTEM 

SERVICE BULLETIN 

D. Remove the combustion and High Pressure (HP) turbine module from the engine 

<Refer to the Engine Manual, Chapter 72-00-41, TASK 72-00~41-000-000). 

E. Do an inspection of the bolts <72-41-21, 01-535> and <72-41-21, 01-550> which 

are installed in the HP turbine stage 1 air seal support (72-41-21, 01-500) 

<Refer to Figure 2> 

(1) Do a visual inspection of the 20 bolts (72-41-21, 01-535> that attach the 

air seal retainer (72-41-23, 03-750>, the air sealing sleeve ring 

<72-41-21, 01-530) and the HP turbine stage 1 atr seal support (72-41-21, 

01-500> to the HP turbine bearing support assembly <72-41-22, 02-185) 

(a) Examine the heads and the visible threads of the bolts (72-41-21, 

01-535) for discoloration and oxidation and record the results of 

the inspection in the Accomplishment Form on page 11 

(1J If there is any bolt (72-41-21, 01-535) found brown or with a 

rough oxidized surface, replace the 20 bolts (72-41-21, 

01-535>, P/N EU10956 {Refer to the Engine Manual, Chapter 

72-41-20, TASK 72-41-20-000-000 and TASK 72-41-20-400-000). 

<2> Do a visual inspection of the 24 bolts <72-41-21, 01-550) that attach the 

HP turbine stage 1 air seal (72-41-21, 01~545) and the HP turbine stage 1 

air seal support <72-41-21, 01-500) to the HP turbine bearing support 

assembly <72-41-22, 02-185> 

(a) Examine the heads and the visible threads of the bolts (72-41-21, 

01-550) for discoloration. and oxidation and record the results of 

the inspection in the Accomplishment Form on page 11 

[1J If there is any bolt (72-41-21, 01-550) found brown or with a 

rough oxidized sudace, replace the 24 bolts <72-41-21, 

01-550), PIN BLT4937 (Refer to the Engine Manual, Chapter 

72-41-20, TASK 72-41-20-000-QOO and TASK 72-41-20-400-000> ~ .. , ...... ......... .. .................................. ................. .. . ······ ····· ... ... ..... ············ ..... ......... ············· · 

F. Ins·tall the combustion and HP turbine module on the engine <Refer to the 

Engine Manual, Chapter 72-00-41, TASK 72-0.0-41-400-000). 

G. Install the LP turbtne module on the engine {Refer to the Engine Manual, 

Chapter 72-00-52, TASK 72-00-52-400-000) . 

H. Make sure that the work area is clean and clear of tools, equip!nent and other 

unwanted materials. 

I. Complete the Accomplishment Form on page 11 and send it to Rolls-Royce 

De·utschland, Service Engineering. 

J. A record of accomplishment is required. Rolls-Royce Deutschland suggests to 

put an entry into the engine log book. 

Dec. 8/06 TAY-72-A1696 

ERR Revision 1 ~ Rolls-Royce Deutschl~nd Ltd & Co KG 

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TAY PROPULSION 

SYSTEM 

SERVICE BULLETIN 

Inspection of the bolts (72-52-10, 01-470) and (72-52- 10, 01-520> which are 

installed in the LP turbine stage 1 static air seal <72-52-10, 01-460) 

Figure 1 <Sheet 1 of. 2> 

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Dec. 8/06 TAY-72-A1696 1_., 

ERR Revision 1 Page 7 of 1 1 [-

© Rolls-Royce Deutschland Ltd & Co KG :.

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BodyPage(LEFT) - May 15/09 20008 

TAY PROPULSION · SYSTEM 

SERVICE BULLETIN 

NOTE: SOME DETAILS NOT SHOWN 

FOR CLARITY. 

01 - 510 

NOTE: ALL IPC AG/ITEM 

--NUMBERS ARE 72-52- 10. 

01-472 

(16 off) 

/ .~ 

01-460 

/ . 

~ 01-522 

(8 off) 

01-440 

Inspection of the bolts <72-52-10, 01-470> and (72-52-10, 01-520> which are 

installed in the LP turbine stage 1 static air seal <72-52-10, 01-460) 

Figure 1 (Sheet 2 of 2) 

Dec. 8/06 TAY-72-A1696 

ERR Revision 1 

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TAY PROPULSION 

SYSTEM 

SERVICE BULLETIN 

SECTlON THROUGH VEAllCAL CENTER UNE 

Inspection of the bolts <72-41- 21, 01-535> and <72-41-21, 01-550) which are 

installed in the HP turbine stage 1 air seal support <72-41-21, 01-500) 

Figur e 2 (Sheet 1 of 2> 

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Dec. 8/06 TAY-72-A1696 1:· ERR Revision 1 Page 9 of 11 :·:: 

© Rolls-Royce Deutschland Ud & Co KG ~~i 

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BodyPage(LEFT) - May 15/09 20010 

TAY PROPULSION 

SYSTEM 

SERVICE BULLETIN 

NOTE: SOME DETAILS NOT --SHOWN FOR CLARITY. 

NOTE: ALL IPC FIG/ITEM - - NUMBERS ARE 72-41-21 

UNLESS IDENTIFIED 

DrFFERENTL Y. 

01-550 

(24 off) 

01- 535 

Inspection of the bolts <72-41-21, 01-535) and (72-41-21, 01-550) which are 

installed in the HP turbine stage 1 air seal support (72-41-21, 01-500) 

Figure 2 (Sheet 2 of 2> 

Dec. 8/06 · TAY-72-A1696 

ERR Revision 1 

© Rolls- Royce Deutschland Ltd & Co KG Page 10 of 11 

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TAY PROPULSION SYSTEM 

SERVICE BULLETIN 

AIRCRAFT SIN OPERATOR ACCOMPliSHMENT DATE 

ENGINE SIN TIME SINCE NEW (TSN) CYCLES SINCE NEW (CSN} 

INSPECTION OF THE 16 BOLTS (72-52-10, 01-470) 

AtN BOLT HAS BEEN FOUND BROWN? YES 0 NOD 

IF YES, QUANTITY OF BROWN BOLTS: I 

AtN BOlT HAS BEEN FOUND WITH A ROUGH YES 0 NOD 

OXIDIZED SURFACE? IF YES, QUANTTTY OF BOLTS WITH A 

ROUGH OXIDIZED SURFACE: I 

INSPECTION OF THE EIGHT BOLTS (72-52-10, 01-520) 

ANY BOLT HAS BEEN FOUND BROWN? YES D NOD 

IF YES, QUANT1TY OF BROWN BOLTS: ~ AtN BOLT HAS BEEN FOUND WITH A ROUGH YES 0 NO 0 

OXIDIZED SURFACE? IF YES, QUANTITY OF BOLTS WTTH A 

ROUGH OXIDIZED SURFACE: I 

INSPECTION OF THE 20 BOLTS (72-41-21, 01-535) 

ANY BOLT HAS BEEN FOUND BROWN? YES D NOD 

IF YES, OUAN1TTY OF BROWN BOLTS: I 

ANY BOLT HAS BEEN FOUND WITH A ROUGH YES D NOD 

OXIDIZED SURFACE? IF YES, QUANTITY OF BOLTS WTTH A 

ROUGH OXIDIZED SURFACE: I 

INSPECTION OF THE 24 BOLTS (72-41-21, 01-550) ... .. ............. ···· ··- . .... ... ······ ..... ........................... . . . ....... ... . .... ...... ...... 

ANY BOLT HAS BEEN FOUND BROWN? YES 0 NO 0 

IF YES, QUANTITY OF EU~OWN BOLTS: I 

ANY BOLT HAS BEEN FOUND WITH A ROUGH YES 0 NO 0 

OXIDIZED SURFACE? IF YES, QUANTITY OF BOLTS WTTH A 

ROUGH OXIDIZED SURFACE: I 

.. 

PLEASE SEND THE COMPLETED ACCOMPLISHMENT FORM TO ROLLS-ROYCE DEUTSCHLAND, 

SERVICE ENGINEERING, F.AX: + 49 (0) 33 70861212 OR 

E-MAIL: RRD.SBFEEDBACK@ROLLS- ROYCE.COM (SUBJECT: TAY-72- A1696). 

Accomplishment Form 

Dec. 8/06 

:-.\ TAY-72-A1696 ~-- ERR Rev i si on 1 

© Rolls-Royce Deutschland Ltd & Co KG 

•••• 11 of 11 ~ 

:.: 

Rolls-Royce Deutschland 

Ltd & co KG Service Bulletin Approval Form 

Service Bulletin Number TAY-72-A1696 Revision No.: 1 

ENGINE- TURBINE NOZZLE CASE AND VANES H::-::P~A':"":N~D=-:-L=---­

INSPECTION OF THE BOLTS WHICH ARE INSTALLED IN THE 

LPT STAGE 1 STATIC AIR SEAL AND OF THE BOLTS WHICH 

ARE INSTALLED IN THE HPT STAGE 1 AIR SEAL SUPPORT -

Service Bulletin Title NON-MODIFICATION SERVICE BULLETIN 

Engine Deslgnatlon(s) _T.;..a;;,;,y(...6.;..1.;..1;...-.;..8 __________________ _ 

Engine Serial Nos. affected Refer to paragraph 1.A. of the Non-Modification Service Bulletin. 

Source material used Information supplied by EE-9 (D.McCaffrey). 

Author 

Quality Check 

(external company only) 

Service Bulletin Group 

Service Engineer 

Group Leader 

Service Engineering 

Chief Service Engineer 

(only tor NMS&) 

Engineering/Specialist 

(e .g . Screse. Design. Non-Oealtlle<M! Inspection 

St>eciolil1 or Clllel) 

Customer Operations 

(only If Von--unlls ore aJfectod or9R700 spares pri= ore ~Sled) 

Service Operations On-Wing 

.Ser:v.Jc& Operatk>ne Off-Wing 

Service Business Team 

Engine Assembly 

eve 

($8 GrOUP lor 585 / SeMele Er~~~neemg tor N!.IS&) 

Aircraft Manufacturer 

<or:IY tor F.AR25 sec) 

Airworthiness Office 

B. Clarke 

(Name) 

S. Griffiths 

(Name) 

Name 

Approval 

24.02.12 

(Date) 

24.02.12 

(Date) 

EE-lf3 

-AliA-

-J\l {A-

-AltAService Bulletln Group 

~ (Signature) 

' 

~- Cu (Sign!4ature) & 

Date 

WP No.: 209246 

Tllll Service Bulletin Is approved for publication In aecordanee with VA1!Hl137. 

Technical Lead SBs I 

Dept: ManagerTDS Name: ------------------------------------------ -----------------

Signature : ----------------------- Date:----------

0 (Rolls-Royce DeuLSChland 2010) see VAI9.01J7 10003437:2010·1 1-23 

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