ML19312D187

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Forwards site-specific Info Re Insp,Operation & Matl Composition of Low Pressure Turbines in Response to NRC .Certain Westinghouse Identified Info Withheld (Ref 10CFR2.790)
ML19312D187
Person / Time
Site: Rancho Seco
Issue date: 03/19/1980
From: Mattimoe J
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To: Eisenhut D
Office of Nuclear Reactor Regulation
References
NUDOCS 8003210439
Download: ML19312D187 (43)
v • d • e


Text

{{#Wiki_filter:_.___ __ O ^ e. gouun SACRAMENTO MUNICIPAL UTILITY DISTRICT O 6201 S Street, Box 15830, sacramento, California 95813; (916) 452-3211 March 19,1980 Director.of Nuclear Reactor Regulation Attention: Mr. Darrell G. Eisenhut, Acting Director Division of Operating Reactors U. S. Nuclear Regulatory Comission Washington, D. C. 20555 Docket No. 50-312 Rancho Seco Nuclear Generating Station, Unit No. 1

Dear Mr. Eisenhut:

Your letter of February 25, 1980 requested site specific infor-mation concerning inspection, operation, and material composition of the low pressure turbines at the P,ancho Seco Nuclear Generating Station. The attachments to this letter provide the information for each item requested. Westinghouse was to have furnished to us a request and affi-davit that information identified by them as being proprietary be so identified in our submittal and the justification for nondisclosure. Due to circumstances these documents did not arrive in time for us to include them in our answer to your February 25, 1980 letter. However, Westing-house in an understanding with Mr. Ross of your office agreed that we .could send the Westinghouse request and affidavit to you when we received them and your office would honor their request for nondisclosure. In our answers to your questions we have identified the infor-mation that Westinghouse has told us it considers proprietary. Also, we have supplied similar data sheets minus the proprietary information that can be placed in the public document room. Please contact us if you have any additional questions. Sincerely yours, b.b. h J. J. Mattimoe Assistant General Manager and Chief Engineer Sworn' to and subscribed before .me this --/7 ( day of March,1980 -6

49i OFFICIAL SEAL l

4 PATRICIA K. GEISLER NOTAAY FUCUC CAUFORNIA y! e 0"sl M &fa My Commma Emptres Novemtar 22,1983

                          • "'*g*6'6*f 6* *6

PN / AN -ELECTRIC SYSTEM SERVING MORE TH AN 600,000 IN THE HEART OF CALIFORNIA

n.m, n,-w - - ~,, --~ ~- ~ 'W ' ).. z, J.r l-- 1 I }. ATTACHMENT NO. 1 4 { :. SITE SPECIFIC GENERAL QUESTIONS \\j. 1 k. h 4 1 5 J. - 4; +- h. t>- f'.t-1' f I 1o N-I 1(t 1: f I 4 r. be kr L'.-- %4r >urg;;,; > , _ ~,..,,.

ATTACHMEN[NO.l.

SITE SPECIFIC GENERAL-QUESTIONS 1; LRequest (lA)

Provide?informatio'n-on type offturbine. Response: The' unit consists.of one tandem compound four flow, three casing condensing,1800 RPM turbine utilizing 44 inch _last row - -blades in each low pressure element. The. low pressure' element is ' designated ~as a Building' Block 281. ~2.--Request (18)- Number of hours of operation for each LP turbine at time of last turbine' inspection;or if not inspected, postulated to turbine inspection. Response: During the 1977 refueling botn. low pressure turbines were inspected. LAt that time both-turbines.had operated 8091.6 hours. During the 1978 refueling the No. 2 low pressure turbine,was inspected. c The total number of hours of operation on each low pressure turbine at that time was 16'215.8 hours. It is planned to inspect both low. pressure' turbines during:the 1981 refueling. 3. Request (lC) Number of. turbine' trips and overspeeds. . Response: Trips due to(Surveillance Procedures-12 Trips due to Other Tests 4 ' Trips due_to-Reactor Trips 17 Trips due to Normal. Shutdowns-36 -Total 69 There were no trips due'to overspeed. -4. Request'(IDl) I !Give the-type'of material including material specifications for each disc.- L -Response: The type lof material is Ni-Cr-Mo-V steel similar to ASTM-471. -The minimum-yield strength for each disc is given in Section B of Enclosure No. 1. '

5. -Request (102)

~ l 'Give tensile property data for each disc. . Response:: Tensile' properties-data of tests taken from the disc hub are ,given.in Section 8 of Enclosure No..l. ? Data obtained from rim material are presented in Section C of_ Enclosure No.1. c ~... ._,ey., + .r-

ll,y +- / L6. IRequest (103) ~ Give toughness property data including fracture appearance transition ~ ~ temperature:and upper energy and : temperature for each disc. ' Response: ' Toughness properties.are also presented in Sections B:and C

of Enclosure. No. l.

As described 'above,.SectionLB contains hub proper-- ties:and Section C contains rim _ properties. Upper shelf energy is not ~ presented.when_it.is the same as room energy properties. 7.-_ Request (ID4) ~ ~ .Give keyway temperature for.each disc. Response: The keyway temperature is -presented in Section Gl-of Enclosure No. _1. This'is the~ calculated temperature two inches from the exhaust-face' of:the disc' at the-bore during full load operation with all moisture' separator reheaters functioning. 8.' Rsquest (105)1 Calculate the keyway crack size for turbine time in "B" above. . Response: :The calculated keyway crack size at:

1) The.19_78 refueling with 16,215.8 hours is given in Section;G3~of Enclosure No. 1.

-2)- The.1980 refueling'with 23,508.9 hours is given in Section G4 of Enclosure No. 1.

3) The 1981 - refueling with an estimated 31,428 hours has an. estimated -

crack-size ~as given in Section'G5 of Enclosure No. 1. 9. Request'(ID6)~ For each disc give critical. crack size'.

Response: ~ The critical crack size at 1800 RPM and at designated over -

speed is presented in Section F'of Enclosure No. 1. l. ' 10. Request (ID7) Give the ratio of calculated crack size to critical crack size. > Response:1 'The ratio of calculated crack size to critical size until the--1980-refueling'is:given in Section'G6 of Enclosure No. 1. The -calculated l crack-size for operation until the 1981 refueling is given - in Section G7 of. Enclosure No. 1. - 1.1. : ? Reques t ' (108) ' (Give the crack growth rate.for~each' disc. ' 2-

?. -i

y.

L Res3onse_: LThe crack growth rate' for each disc is given in Section G2 ~ of Enclosure No.il,- Ll2. Request (ID9[ LCalculate bore and-keyway stress at operating design and at design over-1 speed. Response; The: bore' tangential stress at 1800 RPM and at design over - speed are-presented.in;Section E of Enclosure No. 1. The: values pre-Esented -include the-stresses due.to shrink fit and centrifugal force loads only. Additional analyses to. include' thermal stresses and pressure stresses are-being made, but are not presently available; ^

13. Request (1010)

Give the calculated Kic. data for each disc. Response: The fracture toughness,1Klc, of.each disc is calculated from .the Charpy V-notch and tensile data..The-values, presented in Sections 'B and C of Enclosure No. -1 are calculated at the. upper shelf temperature cor room temperature, whichever gives the lower result.

14. Request (1D11)
Give the yield strength for each disc.

Response: 1The minimum yield strength for each disc is presented in Section B-of Enclosure No. 1. 15. Request (II) Provide-details of the results.of any completed inservice inspection of -LP turbine rotors, including areas examined, since issuance of an -operating license. For each indication ~ detected, provide details of-the location.of the crack, its. orientation, and size. -Response: Enclosure No. 2 gives inspection data-for.- the 1977 inspection ' of low pressure turbine, Nos c 1 and 2. ' Enclosure'No. 2A gives inspection data for the 1978 inspection-of low pressure turbine No. 2.

16. : Request (III)'

Provide: the nominal water chemistry conditions for.each LP turbine and Ldescribe~anyj. condenser _inleak. ages or other significant changes in second-tary water chemistry to this point in its operating life. Discuss the.-

occurrence-offeracksiin any'given-turbine as.related to history of'

. secondaryy water chemistry in the unit. 'a

~ 't h r. a j c %f m n ~ % m ,n i: Response - J.a.[NominallW5terFeedwaterChemistryforBothTurbines ~ I Oct6ber 1976 ' January 1980

phi >

9.4' .Hydrazine,-ppb _ 22 Cation Conductivi.y, 0.1; TotalTIron, ppb. 4.5-t Jumho/cm Silica,rppb' . (10- .#~ ' ~ . Total Solids, ppbi 120 LChoride, ppb ~ . 41 l Sodium, ppb. <3 Dissolved Oxygen, ppb

4. 5 tb. 'N6minal Steam Generator Steam Chemistry-

~ [ 10ctober~.1976 - January 1980.' OTSG "A" 0TSG "B" 9.3: 9.3 pH1 0;l 0.1 Cation. Conductivity, umho/cm ~ Dissolved Oxygen,-ppb-( 5

4. -

iSilica,. ppb 1 <10 <.10 Sodium,Lppb < 3 <. 3 ' Iron, ppb l _ (10 (10 Chloride,zppb- <1 <, 1 c. 0n' March 25,J.1977~there was a condenser tube 11eak.

d. : At this time-ai. correlate of water chemistry with cracks cannot be made.

~- 217. ' Request (IV)" If 'your: plant has not been -inspected, describe your proposed schedule Land approach.to? ensure thatiturbine cra'cking does; not. exist in your-turbinek - Response:. :During the 1981 refueling outage regular. inspection plus-t ~ keywaycand rotor inspection will'be-made~~on both low; pressure turbines. ~ ~ The: bases-for: waiting Luntil the 1981 refueling _:is that: the' ratio ~of- = calculated crack: size.toLcritical' crack-size is below'one:for each disc. (SectionlG7;:of: Enclosure No.1). 'j -18. : Request,(V)- If your plan _t has.been; inspected-and: plans to' return or has returned to w" (power!with cracks, provide your proposed. schedule for the next. turbine ^ inspection and the-basis for; this inspection' schedule. q

pesponse
Does-not[ apply;to' Rancho Seco.

^ c;. 3, = t 5Indifate whetherlansanalysis and evaluation regarding turbine missiles ~ ~ n x ~ ] 7', ,;; ;.7 p I c.4 3 f y 7 -,,-n-, .-u.

fi,1 '? L 1have:been performed-for your. plant"and provided to'the staff. If such can; analysis and evaluation has.been performed and reported, please provide: appropriate references 'to-the available. documentation.- In the . event:that such' studies have not been made,-consideration should be. given to. scheduling such an. action. Response::iWestinghouse is sche'duled to provide missiles ;energieszby the - end of. April'1980 and the P value:by June or July'1980.- -Based on:this information, a decision wil' be-.made to perform an analysis and evalua-tion :to Regulatory: Guide.1.115, 3 4 Y 5 t

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o. CHEntSTRv C

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2 surrLIERI plDyALE MCPNNST4LL .b,c.e

3. CUST0MERI 5 MUD.

3 Tese IKSil le TeSe IK$1l b afl0N OV IT N NU IT 5 '~~h' NO, 'TN6587~~' ~~~ ~ ~ ~ k k'IDEGerl ~'~ ~5 AT I' 10E G'e F I - Se Refe IMPACTIFTeLSel 6. R T. IMPACTIFT LBel

9. UeSe IMPACT TEMP.
7. U.S.

IMPACT TEMP. (DEGeFI IDEGeFI 10e UeSe IMPACT ENGe.. Se_Ue5.~lMPACT ENG... _. IFieLeel IFfeLe l e lie UeSe KIC 9 Ue5. KIC ..._ _.. ___.. 1K51e50RillNell __ %.__. lE51*50RTl!Nelg.___..___ De CHEMISTET b R b,c.e _ - MO h,c e V. .b g.m _. _.. _ .N b,c.e.. 51. .b,c. .P C y ,c.e -.. ] b,c.e. -___ NI.. 4, c. _ __. A S. b, c.e- --. 5 8 b,c e 5N-h,c,e. A L._ b,c.m -_ CU hea 1. b_e e Ee DONE STAESS ' ~ - Fe"CRACE QATA .~ $ PEED IRPHI STRESS -' b,c.e f b,c.e le is00-last ,,e,,,, f 9V.1;R s!'ggg.! g, Yu,., i l ".__....2,'2160slical_..lK58l..._. atC 9 =.93_ E 2e G ' SERVICE DATA b,c.e " ' ' ' - ~ ~ ~ ~ ~ le TEnce MgTAL TEMPe HUR EDEGeFI 'l

2. OPER. ESTIMATED MAX DA/DT IIN/HRI

- ~- m_....._.. ..~.._2___._ Te . e._. ^, g _ _.. .ID e 3 0201100902 . [ LP TURBINE DISC INFORMATION a, L Ai-UNIT IDENTIFIC ATicN ~ ~~ ' ' ' ~~~ ~ - S e 'N AT E R I A L' P R OP E R T I E S. l HUS I' '~ " ~ ~ ' - ~ C'eN ATERI AL PROPERTIE5"lRINI 3 b.l TD le BulLOING SLOCK 288 8 TTPE IMlwe v S. I alK a ~ 2 UNIT RANCHO SECO sl ~ 2 SUPPLIE$t BEfMLEMEN S L - 'tr, c.e 3 CUSTOMERI' " SMUO. ' ' ~ ' " 3 'TISe IKSil. - - - -b ic.e l e YeSi tKstl I g ueTese EKSil 2e UeTeSe IK$il 9 LPs 4EN 5 ELON6Aftch

3. ELONGATION 5 LOCAfl0N i-UlPn0.

Tums 3-- it-ElihnEGer r - It41It7DEser. 4:":I:1:HEI'US**' i: 5:I: 1:;iEI'UdP' IDEG IDE4eF1 (MPACT,FI ~ ~ - ~ ~ ' ' ' ~ Sed S'e' IMPACT'[NGe~ 7...,..... 10 e' U e'S e [NGe IFTetsel Irt.Ls.3 Ile Uese KIC

v. Ues. KIC mSt sqlRt(IMall __

1xs195tRIL1511_.d l De CHEMISTRY C MN St P CR MO V - -- 3 -] b,c.e -{ - ] b,c.e - [- ]b,c.e- [. 'b;'c e- -[, 3biete--[- ]tgere---{- -] tme -- NI $8 $N AL PU 5 [. gb,c.c Al ytr;c;e q pe;e 7 ]tr;cin ] p g, 3o,c,. g go,c,. ' ' " ' ' CRACK Onia E,'s0RE STRESS . STRESS ' ~ r e -~ SPEED IRPNI l ] **** A = g n = 0 5_, vERSPg peft b,c.e to A=CR=0Ph400RPMht g S00 2e 160 l l 20 s,I Se SERVICE DATA' r l *

  • 1: 2Hf a Alli"AAt9NI9744f '._'."..'

.3 Estimated _ftax. Crack Size _1978 _ - 4. Estimated Max Crack size 1980 5. Estimated Max track size 1981 6. A-ACR-0P A-ACR-OS 7 A-ACR-OP A-ACR-05 g g _ y 7-_-

'lj ....m ~ ..,.. _ ~ ( l .. l - p@ l .... _ -.. -. _ -. ~. -.

  1. k o

. ~. _ -. 1 l -to a : 02s18001o2 '? =-- I* LP TURBINT DI.C IMr0RMATION ,!.,1I.. ~~ ~ 3 MATERIAL PROPERTIES (Hust' ~ C. MATERIAL PROPERTits~tRIMI A.~uMIT 'IDENi.trtCAfl0N e. TE

8. BulLDING LO K 243 I tvPE hw n C

i,., sai. v.s. t _. 2. tw T _ RANCuo sECO et. 2 suPet:ER: nioyALE MEP E_asfALL ~

s. CusionER:

snuo. 3 vas. essis ' b,c.e . v.s. tusig" b,c,e 2:LEEAfi... LE. 2 EclAltrl82 ';: FilAllTli. 7, 2 -- -i t"Ilf T of..r ---- - -i.:.419 h oc,.n- !C trflif'... T..... T. v.s. in,ACrir,... R.r. i .,. R.v. nPAC,irr.t... ,ACr ACT 1E.. . u.s. star. io. u.s. iJiif 4.A.. -- --.. o.sr Jitt4.A.. rr.t.. ii.u...xilrv.t ...v.s. n tESIs.4RTl1N.ll. .._._... _. _ _ 1E.S l!SSRTillfalt t JI ) O. CHEMISTRY [^Y ~ ']~b c.e j {) "j b,c.e { ]6.c.e [. b,cf ' [M0 5 r CR -~~ '-{C ] b,c.e -{MN J b,c.e b,c.e I A6s s Al - ~F~,c.e ~ [CU ]b.c.e L Tb,c.e - S E" ] 5', c'~,e- ~{.N~ ]b,c.e ..'g - { 88 1 -]-bic,e-As T tr,cse ' { L

r. CRACIC OAIA E. EDRE sTRE.1 SPEED (APnl sTRE.S 800 RPnt g

{ ]b,c.e . l a s t f...._. l ' '_*

  • YE A5P_EE9L155b
2. A.CR.0PA?tR=05 3

___ e. 2 4 40 L12ils t __ l . 8800 -l. _ sst i* ] G. sERvlCE DATA

  • ,]

I $ EN$4A D'$A ChD $$5/ .0EE.rl b,c.e 'd )

3.-- Es t imated Max-Creek -Si re 1978 - - -- - --

4. Estimated Max Crack Sire 1980 5 Estimated t'ax crack sire 1981 .- 6. A-ACR-OP A-ACR-OS 7 A-ACR-OP A-ACR-05 I

~ - a. - I . +. ID e 3.0283100902 LP TURetNE DISC INFORMATION . n, ~ AT'UNTT*10ENTIFICafl0N'--~ ~ Be~ MATERIAL PROPERTIES IMUSF ~' ~~ ~ Ce >AftRIAL~ PROPERTIES ~lRINI ~ ~ ~ ~~ ~; le SulLDING SLOCK. 281 le TTPE _De c.* TO IMike T.Se [- J IKSlll SUPPLIER!I SETMLEMEM STEEL i~

2. UNIT RANCMO SECO s). '
  • 2e ToS.~lK

[ %Q~~'~ '~ " bC'*le a 2 U.T.S. SllIKSil 73 IKS U.5.

3. CUSTOMERT~' SMU0e'

~~ 3e T.S. IK5tl 9e LPs I ge 8

5. LOCAfl0M

$EN Se ELONGAfl04 3e ELON6ATION 9 Rea DISCe 3 6 ReA. se,'FATI 80EG.FI 6,7EST Mo. YW6450 7 rA T T713 E s e r I~ ~-- S e i Fe 8 Refe IMPACTIFT.L es Refe IMPACTIFTeL&ol 4 '.. t 9e UeSe IMPACT TEMPe T. U.S. IMPACT TEMP. I ., I IDEGeF9 (DCGeFI

e..
10. U e S e"~ I M P A C T E N 6 e "~ ~

Go IfeS7~1NPACT ENGe (FT LSet-IFfeb8.) lie U.Se Kit to Ues..KIC ,_,_.. 1K $ D StR U I N ell LES.leS4RTilNe)J 2., _ _ - De CNEMISTRT C MN St P CR MO V- ~~~ ^~ { ' ] b,c.e " ~ {, jb~,c~,7 ~ ' [ ] b,c~,~e~~ { ~ b,c.e " ~[ J,7..e~ ~ T. 'Ib.c.e T b.c.e j 9 A Sp SN AL CU S - h, Mg [ f.c.e { 'J37c7 '~] J .c,e { ]b,c.e t_' ,]b,c.e [ ] b,c.e

1. -

jb c.e T E. SORE STRESS .~ Fe. CRACK DATA ' SPEED IRPNI STRESS f b r- ~1b.c.e le A-CR.OSl5!EORPMdlI$4!I i l,c.e A=CR-OP $l5000860 1830:1 llNl ,1_,______;______._ 2e RSPEE Se SERVICE DATA 1: ES HAAil:"AAt'! N i'774 4 f " M ] -.-3.---Est imated.Mau Crack -Si re -1978- ~ -- -- - - - ~ - - - - - 4 Estf ooted Max Crack Size 1980 p

  • ~

5 Est! mated Max Crack Sire 1981 .... _.. 6. A-AC R-OP. .A-ACR-OS g 7 A-ACR-OP A-ACR-05 g o / e 4

= n- ...n-- l. g... .... ~....

  • q.

_. +. _ ID-8'I.02sl100902 .e .'..../ -:._..a LP TURSINE 015C INFORMATION ,e 't, ~~ .. h G'* UNIT IDENTIFICATION ~"Se MATERIAL PROPERTIES (HUSl Ce MATERIAL' PROPERTitS lRIMi~ le SUILDING.8 LOCK 2el le ( { g g,10 ~ _ 2. UNIT . RANCHO SECO el

2..,5uPP L I E R I MIOV ALg HEPPENST ALL j***'le

.f** W. ve e 'lE!ill 3. CUSTOMERI SMU0e 3e YeSe ( K H I I -- K5tl ze U. 5e Kzli g.. 9e LPs I go VeTese

5. LOCAfl0N GEN S ELONGATION 3e EL NGATION 1:-44 r0E..P r ---

- 4: 4 Ah 40E..r --- - hiHf'NO. T...,0 Rete IMPACTIFToLSel A. R.T. IMPACTIFT.LSel se To Ue5. IMPACT TEMPe

7. Uo5e IMPACT TEMPe

{jQg. g,g[Ge g_ -. _ _, y g.__g M [* y (FfeLSol (FTeLSet ,e U.S. Kit lle UeSe Klc .._..._..__. tKS l! 3 e R T t ! N a11_ (KS l e50RT E.INe i l. t' De CHEMISTRY-he ab.c.e LY ~ ~ 7 b.c.e ~ ~ - - - ~ ~ ' --~T - ',) b c. e' ' {MN " 1 b.'c'.~e' ~ {St ~ ] b'.c~e' { j b'.c.e ' { jb,c.e'~]MO E P CR

.x NL AS SS SN-AL CU 3

L T 6.c.e L '- ili.*ii =~~-- C JE'.c.e L J E'c-e~~' t ~~~ Ib.c.e E 7 b c.. T- ]b.c.e a P PMI' ' STRESS ~ ~ ~ ' " ~ ' ~ ~ ~ ~ ~ ~ ~ ~ - - b,c.e le A CR=0P 18 0 RPMI GIN b c.e e,h800l40.1129si ....lKSI K 51 __2e_A!CRe0 t)V R$PEC0] J l e (" '6e SERVICE 0ATA i'j. - - f ** $A $4 hD $/ i !" Estimated Man-Crack Sire 1978... 4. Estimated Max Crack Size 1980

5. ' Estimated Max track size 1981 d

. 6. A-ACR-OP-A-ACR-05 7 A-ACR-OP A-ACR-05 o / ( f d ~. _ _.... _ _ ~

3-.. le.e 1 0201800902 [I LP TURBINE DISC INFORMAfl0N. I Ae' UNIT"10ENT C Afl0N "'~f ~~ ~ - ' ' Be MATERIAL PROPERTIES IMUBl~ '-~ C ' M ATER I AL' PROPERTIES '(RINI~~~~- ce TO le SUILDING CK 281 le TTPE IM No Y Se [ ] kW II i 2e' UNIT RANCMO SECO e)' ~ 2e SU PLIE MIOVALE MEP ENSTALL ~ ~ ~ ~~~~3. CUST0 MERIT SMUD, 3e' 775 4K5 I .1, c', e T.S e* ~l E S i l b*c,e e 4e Pe I 9 UeTe5. lasil e UeTese (KSIl '4 4EN 5e ELONGATION 3e ELONGATION .Se OCATION

S 6,

Rose ~5e'FATf 10Eseri ~~' se sea OSSCO ' TEST'N0e TN6589 - is F A T T-8 0E 6 e r r -~ ~ - Be Refe MPACTIFTe Set 6e Re IMPAC (FTeL8el Fe Ue IMPAC TEMPe to U Se MPACT TEM e EGeFI EDEG,FI ~~~ ~~~8, D e S e.*I N CT EN6e ~UeSe~lMPAC e trieLS.I iPT L __ns g ef estT i t Ple i l..... ~to Uese KIC +. !s e Uese RIC < KSL'sep tilh11 ~ I De CHEMISTRY - P CR H V I.c.e [. ke [ ] b,c.e { T b',c',e' { ]b,c$e~( ] b,c.e' [' 1,1,e [ b NI A SS SN AL CU S + L Tb,c.e ~~{3~~R,c.e [ -]b,c.e I 7 b,c.e E 1,c.e f. ]b c.e - E d.c.e + b E. s0RE stress ~~ ^ '- ~ P. CRACK DATA ' ' ~ ~ ~ - - ~~~ '-' ~" ~ ~~ ' ' ~ - SPEED IRPMI ' STRESS b,c.e e A= R.0P. g 0 RPMgl $I { b,c.e i I l ' {,,,, ' g j500 8820t1 M

  • 0 5,, _,, R_$ P g E_

._A* 360 6e SERVICE DATA - - - ' -1:2siIAAit?AJ930i'7744f''' 0 0 s l

3 - g. I ..-.. i.. -._._ -._- - _ _. '[ ID e B D208:00,03 ^L-'.. I LP TURSINE DISC INr0mMATION i a ' AT U41f'lDENftrtCATION ~ ~ ~ ~ ~ ~ '5 MATERI.L PROPERTIES IMust' C. MAftRIAt~ PROPERTIES tRing ~ ~ I' ]J --

l. SUILSING SLOCK-208 8.

b,g, 10 ' I_

2. UNIT

_.. RANCHO SECO et _

2. SuprLicR Mlpv4Lg NgPrEN374Lg,,,
t5tari N '

lov i: Et3Altfii!" L: Et!Alifli.g", _,,b,c,e Y.S.,IKst 3-

3. CUSTOMER 8 SMUO.

3. 765. IKSal b,c.e 3:-Pittiocs.Crire4...i ---9:41?f, ore.CrirTd...i 9:llif%. T N o.. 1-- R.r. :,.r r - -- a.v. :,.ci A. ..-o.S; iJie;f rA.. - T. v.s. i.e.g p. .. v.S. : r.Cr re io.-u.S. id li4A..- n i l" '* ' _tlh u n. v.S. n t" ' t 1M. ll_ _. ,. u.S. stS11 Serf lESteSORT a De CNEMISTRY ~ SI R MO V ' ' ~ ~ ' ~ -*~ -[C _Tb,c.e [MN ]bTc~e' [ ' ] b,'c~ie ~ [P ] b,'c',e ' ~ [, [ b ' 'c','e ~~ C T 6.c.e ~ E' ' 7 Cc~. ~~" m A CU 3 [- y,c,e TAS 'J b7c-~s- -- TSe,] Cc~i"~[SN~]b D~~~{, k-Ti li e [ ] b,c.e [ ]b,c,e 1 -~~ ~ C....,,,,,Rc,RPMI STRESS r, caC# o m _..._.. 5 SPEED I

1. y160.111tst..lKS[j.

~ P** 1:- a:E::Ji3'-22"ui'If;!, } }6** d 0o t KS i E. SERVICE DATA. 5 ' ' ~ ~ 6'*

  • i: fHindf8'AdE3NitMaAf '"* 'i i
3. - Estimated. Max CrackJ12e.1978..,..

~ 'I 4. Estimated Max Crack Sire 1980 'l 5 Estimated Him Crack Size 1981 d ~ .6. 'A-ACR-OP.. A-ACR-OS ' ~ ~ ~ ~ ~ ~ ^ ' - ~ - - ' ~ ~ ~ ' ~ ~ ~ " - '-~ 7 A-ACR-OP A-ACR-05 @o b i

..Y ~* .~k i ID # I D201100903 't.{ S.'NATERIAL' PROPERTIES IMUtt'* ~ - C. M ATERT AC PROPERTIE5'IRIMI ~ LP TUR8tNE OlSC INr0RMATION .es~ UNIT ~IDEN'!IFICATION'"~'~~~~ "~ .: p. inlN. T.s. L-1 1:TE . y,, I. SUILetNG SLOCK 281

8. TTPE L.

u '2. UNIT. RANCMO SECO sl ~

2. SUPPLIEng

~ UNffE0 5~ ~~ i 5 STErL 2.'Y.5."lESiltusil '3. CUSTOMERI

  • SMUD.

~ ~

3. Y35. lxSil N,c.e t

b,c.e . U.T.S. 2 9 U.T.5 suSI) i 9e 6Ps SOV 5 EL.ON6ATsow . 8 D* S I OCAfl0N EL.ON6ATION 5.*FATT~l0EG. T'~~ ~ 3. 8 6 il5Ce 2 m A, ' I C" ~~~~7 ' T E S T Nu e IN&&E9 - ~~ 4 R A. gg i *FATT IVEG.F)' *~- R.T. InPACTIFT. 6. R.T. IMPaC trf.kS.I Us.InPACTTEnh51

7. U.S. IMPAC YEM.

5 ~ 1 a .. _.,,,. y,,,.,,,8 0, E s,, F,s, ; _,7,f,, 7,g,sp Es r,s,, - g g, ,gg g trf.Ls. art.Ls. - C.

3. U.s. KIC
9. v.s. Ett t a s s.s eRil l N. I I...

tKitfsgR.111N_.D 8 i 8" 9.' CHEMISTRT S P CR M0 T -{ ] b,c.e [ ~] b,'c.e' [t -),'c,~e [ ~] b,c.e [ ] tife',e { ~] T,~c' E ] ' ] b.c.e C MN n .p e. AL C S J B;t,~e] ]~bM,e-~~T' 3 5~,c e~ l' ] b7c','e]. ~T F"c' e -~{ V p. {-Nt AS SS SN H j b,c.e [ ]b,c.e C". E. BORE STRESS - " ~ ' ~ CRACK ~ ~ ' ' DATA ~~ ' ~~ ~ F. SPEED tRPMI STRESS T 'l: I m ii20 3 .I:lli f ].___ u 1: mmt ImW;&l'174'l f ~ '*' l'

6. SERVICE DATA

, y'. 1: EsHAAiWAAf9NP7fA4f * ". -.

j. ' ' ' '

p** _3..istimated. Max. Crack Size 1978.. - - --- d 1 ~ 4. Estimated Max' Crack size 1980

  1. f' _

5. Estimated M:x Crack Size 1981 y 6. A-ACR-OP' A-ACR-OS [ 7 A-ACR-OP A-ACR-OS g y S +..==... . + _ ,,--.~-...~, _ ....... ~ e

~ ^ ~ M w '3- ~ ~ -- y.~. v.__._. fit a 3 02s1100903-LP TURsINE DISC.INFORMATION i G 0h* T' 10EsiflF IC Afl0N--'~~"~~ -~~~ - - '~ ' e." M A f t # 1 A L' P R O P E R T I E S ' I M u s ~ ~ ~ C. M AT E R I A L P R OP E RT I E S I R I M i ---- ~ ~ ~ ' /.. -8. SU.'LDING BLOCK. 288 i TTPE .c.* TO IRIN. Y.5. f .1 (K5118 t es 3. C U S T O.'E R I_ RANCHO SECO Rt. 3 suPrL pgyp(EHEn STEEL

2. UNIT l

l i *-

tGE.vios

!O.-

EllA!Irla!"

t.c.e j:. Et Alivl!)" ^ b,c'e SMUO. 3 Y.5. I Y. . IK53 3 - t.:. "R. r. : P.C r - - - I.:. Filh 0E..r r,...-- Ith0E..r it-f!!!'.67-1.. 9 ,. U.s. : P.Cr.E t...

1. U.s. : P.Crir P1 R.v. i P.

P. C Ea. 40EG. 3 80C e I _ . 30 Ues.' IMP.CT ENG... _, e. ' U.~$~.~.I MP A C. LS e l NG. IFT.LS.1 - trf 8 II. U.S. KIC

9. U.S. Kit E K5 l eSSR Tj l N e l I.....

.,,,._...___ _. _. _ E S115 eR T 11N. u

9. CHEMISTRY

[. C ] b.c.e - [ ]_b.c.e [ .lb.c.e {, 3 b.c.e [ ~j b c,'e [ h. _,,. y _ lb.c.e .... N N 58 P CR MO [ ce ja Ts.c.e, ,CU _ _,,_ 3 .. r ...58 _,..._._ A L T r. c.. _J S. l b,c.e t ~ lEc.._ 5N. 7_6.c.e E. NI [ .jb.c.e [ jb.c.e L e t. E. DORE STRESS

r. CRACK OATA...

~ F 5r<<= 'aral 5'Rr55 ~ 4" 3. Is00 gK5il b,c.e

1. a.CR.ep gle00 RPM i N.3 7 b.c.e 2.

A?CR*01_tDVER.5PEL _LN a t I 1* *

29. 2840_.L12058..lKSI L,___

a [.. d

4. SERVICE DATA 1: 2ifia.il5"A.19N19faAf

'.'l ( i --3 r- -Es t imeted -Man Crack-S t re-1978 -- - - ---- - -- l*' 4. Estimated Max Crack Sire 1980 d Estimated Max Crack Size 1981 A-ACR-0P A-ACR-OS 7 A-ACR-OP A-ACR-OS ] o 8 O

'~ ._._ _ _.. ~. _...,.. . - ~.. . l l 30 e : 02e3300g03 l-LP TURetNE DISC INFORMATICN A-UNIT ~10ENTIFICAfl0N. ' S e"M ATERI AL PROPERYlES IMUSI'.e" 'Ci MATERIAL PROPERTIES IRINi~ ~ ~' ~ le SUILOlNG BLO K 288

3. TYPE

, b,c 70 C IMIN. Y.Se f . 4KSjil e -Se UNIT R ANCMO SECO s) -

2. SUPPLIERg M10 TALE MEPPENSTALL
3. CUSTOMERI '~~ SMU0 e 3

T35. IK5tl ~'- ' b,'c*e l. YeSe tKS$1 be

9. LPs 2'

ge UeTese quSil 2e UeTeSe IK333

5. LOCATION 60V
5. ELON6Afl0N
3. ELONGATION 5.e R.AT ATI ~t 0CG. I Rete g

7e_0ISLs. et 1 '~ 6, raff~10E6erl~'~~ - TEST NG. TNeles re 8 Refe IMPACTtFfettet A. Ref. IMPAC IFfeLBel 9 UeSe lMPACT TEMPe 7 U.S.:IMPaC TEMP. IDEG (DEG,F3 ~ ~ ~ ~ " - ~ ~~ ~ ~ ~ ' " ' 10 UeSe~ IMPACT,FI ENG.

  • ~"'Ge'U'.S~o~lMPACT'ENGf ~~~

IFTeLSel tFTeLSel II. Uese KIC 9e U.S. KIC _ Lits t e s tR f l J M e l l..__. LK11!1 TRILL!s i t,__ s 'De CwEntsTRT tE '1 b,c.e -[ 3 5,E,e - [ y,E,e [ J b,c.e L lb.c.e 3b,c, ] b,c.e ' e a se A cu s T b,c.e { 's ] Cc.e f jb,c.e {su~ ] b,c.e ('t NI jb,c.e L .lb.c.e T jb,c.e [ 5 PEED IRPMI STRESS Fe CRACK OATA E,-SORE STRESS '~ ~' y, issil ~ lb,c.e 2e_.A.s... 10Ja n,,,di,174!i b,c.. .E.. , i, 1.e is00 i 20 8 Ks .su i.0 Go SERVICE DATA ~ g 1: EstfAAT W AAV9 N T'"iA 4 f * 'I e 3.Istimated Hax. Crack.51ze.1378..... 4. Estimated Max Crack Size 1980 5 Estimated Max Crack Sire 1981 d 6. A-ACR-OP A-ACR-OS 7 A-ACR-OP A-ACR-05 o A av-

], l (" [- . -.... _... - ~. _ _ _ _. In a 1 02el10090h t' LP TURSINE DISC INr0RMATION 'l A." UNIT"10ENTIFICATION ~~T~~~'~ 5." MATERIAL *PROPERTIts INUSI' '" ~ C. M ATERI AL 'PROPERTits"t RIMI ~~ ~ ~ ~ ' ~ To ,l. BUILolNG SLOCK 208.

l. TTPE fMIN. Y 5.

1 b(k l 2.' UNIT ... RANCN0 SECO si:

2. SuPPLgt

[penLg MEP N5 TALL, '*;*I"8I ... _ _., ^ b**** j' RO Alifl!l" SMUD. 3 135. IESIS 'g:.CUgTOMER8 30T 2: RisitTI:2" 6** t8cAfiON 3: 2- - - 9:-Elih orsvr i - - - - - -- 2: Pithoc..ri-- ( f:-flif',.. TN.42i

e. u.T.

n,AcTi ..i A. R. in,Ac i s.: R nPacT.

i. u.

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18. u.s. KIC T. u.s. KIc-

~ ___1KS! sSORY I IL j l_ . _ 1KSIS$3RJ(INtil. _,_

0. cNen 5TRT g

~, ~'~ ~ ~~ T T b,c.e' [ ~ ] b,cTe ~ ~ [',, jb,'c.e [ l b,'c', e [ - ' b,c,J -[, ; Tb,c.e t.- Jo,c.e AL _ _CM. 5 __S N. 3__c.e M8 ______S B [ .. _ b,c.e [._ _45] b,c.e (~ [ L 3 b,c.e (_ } b,c.e .L lbc.e }b,c.e .] SPEta IRPM, . STRESS F. CR A Cit DATA, _,.__,_____,__ __,_,, _._En 90RE STRESS lb,c.e lb,c.e . A=cm.0P '].ge00'160t13A1)..__grSt{...._f _ p. __ ..A?CR=95 ..EoRPMhl$gY. i t RSPEt 1 e. K51 y 6.'5ERVICE DATA 1: HIIAAlli'AJ'. m ol'.774 4 f I* 'I o[6** o t \\ l i i i l l

  • * * '++
  • j

~ .g-_.......,..-..... - - - -., ~. -... - - - - .... a -..... _. _, -10 e 1 0201100909 LP TURRINE DISC INFORMATION. - {' A,'~UN I T~1 BEETIF'I gKATION' ~~~ ts' MATERIAL' PROPERTIES ~lMutI~ ~ ~~' - C. MATERIACPROPERTIES IRINI le BUILOING SLO 288 le yQ g. ] gc4,TD 2, UNff RANCHO SECO el

2. SUPPLIER MI0 vat,g HEPPEse5 fall
3. ' CUS T OMER I'~~~ SMUO.

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9. U.f.

IMPACT TEMPe

7. U.S.

IMPACT TEMP. S.

10. U.s. i !,!!!'l A.. -

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18. U.s. Kit
9. U.s. zic

_.l as testR.T.IIJe ll_._ .] s E31* S t8tu tNtu j a 3 D.' CHEMISTRY SI CR MO V .C. - y b,cre -L 3 c.e - [P Jb c.. [- 1b.c.e t _ r b c.e- - [ - yb,c.e ..- b, c; e - MN b NI As se at 10 s t -{b,e.e t 7,cw {- jtr;trr --{S N joTcTe p ,g.c r---_t j o,c.e g go,c.e b b o i ' "tri!:'ile,,, snEss 5'""" I ' 1: !!!8 n 0.i tilli 1.4-- 1;i:!:::s14:22"E28,'l74!, l6** J G. SERVICE DATA '1: filiaATW4Af'3thi'tfAMI '#8 j -3: - Es tima ted-Men Creek $lse 1978 ------ -.-. --- ---. Is. Estimated Max Crack Sire 1980 5. Estimated Max Crack Size 1981 6. A-ACR-OP' A-ACR-OS 7 A-ACR-05 A-ACR-05 -.s.w .-ow

1.,. ,.-'7. T. ' _2' = .ID 8 I D281100909 LP TURGINE DISC INFORMAfl0N Ai' UNIT' IDE8if t r t C ATION "S$ MATERIAL. PROPERTIES (MU 1~~ ~ NCi MATEntAL' PROPERTIES IRINI~ ~ e TE

4. SUILDING SLOCK 288
8. TYPE r

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1. :. ".It. h 0.c.. P i - - - -- - -

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7. U.S.

IMPACT TEMP. ,,,,,,,gg;.;;,, ,,.,,,.,._,4 0 g. ;;,, __ _ _ i,..t..I ire.L..I II. U.S. KIC

9. U.S. KIC

___._tKS t eS ARTllM i t.. (13195tRft1 Main j '42 ~* 'D. CNENISTRr -._...C HN 51 f CR Y ] [ l b,c.e '[ - ]... -. [ ..3b c.e_. [ .Jb c,e [ 3b,c.e lMO lb.c.e-.--..---I. l b,c.e b,c,e mi As sa sN At CV s L I 6 c T~~l T6ce [ ] b.c",e-~ l .}b,c.e~ L' lb,c.e E 1b,c,. [ 7 b,c.. ~~~'*"Irll5E73PMI ' STRESS

r. AaACK. Daft.___._ _ _

~

1. A=CR=0P 48800 RPMI glN.

I b.c.e 1. 1000 (MSI b,c.e .. s e CR..o t.10 v_E_R s P_g Eoj __t Irv.I "..'i 2 e_2140.1139s ___.l zs t l_.._._... _ 2 s a r t l [

s. SERVICE DATA

,J N kSffAA E.'AAV'3 Doi'7ta,Hf * " 6 e-3.-Esthnsted-Mex Crack-Sire-1978 - -- --- -- 4 4. Estimated Max Crack Size 1980 5. Estimated Max Crack Sire 1981 a i i 6. A-ACR-OP A-ACR-05 7 A-ACR-OP A-ACR-05 i l i b o. an. 4 . -..... - -.. -. - _... _.. - ~. - _.. -. - - -

.+. __ ._.__..m.... y -..... [.... ~ ~ ~ ~ ~ " - ~ ~ ' ~ '~~~~ ' ~ ' " ~~~~~ ~ ~ t-10 9'I.0201100909 1 LP TURetNE DISC INFORMATION NIT ~lDENTI C A T I0ff ~" O ATERIAC PROPERTIES ~lMUel ~~ C'.~NATEA1AL~ PROPERTIES'IRIN[- ,b.c.e 70 . SUILDING B CE 288

8. TTPE.

7 enin. T.S. _ ::S ::

2. UN T'

RANCHO $E(0 sl - 2 SUPPL SEtMLgMEn S EEL' . Y.S.~l.ESI 3 T45. i CU!lTOMERT~ ~5MUO. . U.T.S It il 1,c.e U T.S. la 18 t,c.e . LPs i 2' 9 ELONGATION

3. ELON64 TION
5. fiu iOE..ri -

- 2: Pi h,0E .r. E 80 CATION SEN-L t.- filPN.. i:- .,N...,- 1

0:I:I";i!?'UA>

1:5:I:luiti'UA> ~ IOEG.F8 IDEG.F8 ~ ~ ~ ~ ^ ~ '80 'Ue5." IMPACT ENE. -~ e.U.S."TMPACT [NE." (FT.LSel (FTeLu.8 4 g. II. U.S. alC S. U.S. KIC j _LaS toSeRJ l I18.J I .1K53 *_ItilIllN_ill_.____ ~ 0. CHEMISTAT V -.. f . MN St P CR M g ] b,c','e ' ' t Jb.c.e - bE-[ ),i.e - [ jb,4,e [ -]b,c.'e ~ [ AL Cv_ S sig~ ~ b~,c.e Se As~{b.c.e { g.c.e [ 4s ] { lb.c.e [ j b,c.e L p,c.e b { .[bc.e [ - SPEttr t#PMI STRESS ~ ~ ~ ~ F. CRACK OATA ~ E. SORE STRESS ~~ ^ 1: If!8 n20 8 11111 l-7 ***'* 1:i:ER:85 I&lERSIEE&i'Ifa!, I ,..... ] G. SERVICE'04TA ~ ' ~ ~ ~ ~ ~~ h fiffAAlfPAAt<3thi'ifAAf 'ar*3' [$ 6c-1.~1s tlasted.,atax Crack. Size _1978 ___ _ _. 4. Estimated Max Crack Size 1980 6 5. Estimated Max Crack Sire 1981 6. A-ACR-OP. A-ACR-OS j 7 A-ACR-OP A-ACR-Oa ) i. ~ - -' 1

] - -..- - l. w '... 10 8'8 0281100R09 -.n. i LP TURSINE. DISC INFORMATION i. A'e' 'UN I fl 0 E N T llPICATION'~~~~~~~ ~~'~~~B$~NATERIAL PROPERTIES D uel' ~ ~ ~~ ~ ~'C4 MATERIAL PROPERTIES ~(WIMi~ le BUILDING SLOCK 288 le TTPE c 10 fMIN. Y.S. I . b(K II i 2e SUPPLIERa eglOy4LE NEP ENSTAtt

3. CUSTOMCRI._ RANCHO.SECO el-_.

3 Tes (ESlt b.c.eI e Ze. UNIT SMUO. Yose'.IKstt.. _. t.c.e 2 L58 1:0. IE. 2: "R3421Tli 3: EdAltTI !" i lb?!!P 6e -L i:- i. i h 0E..r ---1.:11th0,E.e Irf.t.oi in.. R .. RU.To : PaCTirf.tsel R.T.

i. aC to S. IMPACT TEMP.

T. U.S. IMPaC TEMP. (ofE.Fp i , IDES rs... __ p e (FfeLSel IFT.LS.8 II. U.S. KIC

9. U.S. Ett

_lESleS94Tl1Nell. _. a gil e_papy.L1lf a ll r.u So CHEMISTRY C CR V [ "]'b.c;6 ' { MN-f b,0.e' ** { S t ~ gb,c.e'[ P -]b.c.e { } b.c,~e [ NO ]b.c.~e " ~~T]6c-4 Cu 3 A L.~ ~l b.c.e p.c.e [ sis-]5c.e Sa p.T.E--[_ASD.E.e [ me [ ]b.c.e g j b c.e g .r. CRACK.04fe. _._ _ _ _ __ _ _ Ea 90PE STRESS e SPEED IRPMI STRESS. ~ I to te00 (xStp b.c.e le a.CR=ep tis 00 RPn tlN.1-b.c.e Z e. 2 L40 (1301). _.l ES I L__._

2. A-Cf!=95 195tR5 PEE 01 l.1m t L
4. SERVICE DATA

' g - I. OPER. TEMPe METAL TEMPe HUB (DEG F3 b,c.e 2e ESTIMATED MAN 04/07 (Iw/NRI ^, j . 3. --Estimated. Max Crack Size 1978 ._~ ~.. -. l 4. Estimated Max Crack Size 1980 C 5. Estimated Max track size 1981 o 6. A-ACR-0P A-ACR-05 i.. 7 A-ACR-0P A-ACR-OS g ...o 'h' $e-. +....es. .wm wg. .A. -..e_ .=_.e A-e e -

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3. TTPE.

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  • ' ~

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MN $3 P CR MO V " b',c.e - [ p,c ' e~.' " [ Jb",'c.e~~] ~ 7 b.c.e [ ] b, c.e * [ ' b', c.e [ ~ ] b',c.e [ .3 49 AL 58 SN Ak CW 5 L i lD* l' I '' f j Ec i i .Ib,c.e ( lb,c.e D E. SORE' STRESS ^^ - ~ ~ ~ ~ ~ ~ ' F." CRACK OATA' ' ' ~ ~ ~ ~ ' - ~ ~ - ~ - '~ SPEED IRPMI STRESS i 1:!!!8ingsi__lilli 1: i:El:l"5 l&lESS itat'lis!i I 6=- 6** 3 4 6.-S'ERVICE DATA d I*l$IIAAIED'AAN!)DI"II4pNNY'*""* S 4W D a eed .e e. e e _e e. w -. ,,,,g,,,,,,,, r

8 .C 1 LOW PRESSURE TURBINES INSERVICE INSPECTION / 5 m

a 1. t ENCLOSURE 2 J' . SEPTEMBER'1977: LOW FRESSURE T'JRBINES INSPECTION

TURBINE ROTOR #1 GENERATOR END LA. Visua1' Examination:

~ Minor pitting on Blades L-7; minor erosion in stellite and adjacent braze material L. L-1, L-2. B. HT Wet Continuous: - 1.. Linear' indications in~L-1 tenons,as follows: 6, 11, 14, 15, 18, 20, 22, 31, 32, 35, 37, 42, 47, 48 -56, 59, 67, 69, 71, 72, 75, 76,-80, 81, 83,1B5, 89, 90, 92, 93, 95, 97, 98, 100, 101, 102, 105, 113, 115, 116, 117, 123, 127, 132, 134, 137, 139, 142, 144, 151, 155, 156,1 157, 159, 160, 161, 162, 163, 167, 168, 169, 170, -171,~174, and 175. 2. Body. Steeples, Disc, and Shrouds: No indication of defects. TURBINE ROTOR #1 GOVERNOR END ' A.. ' Visual Examination: Minor pitting on Blades L-7; minor erosion in stellite and adjacent braze material L. L-1, L-2. 'B. .MT Wet Continuous 1. Linear. indications in-L-1 tenons as follows: 1, 2, 4, 7, 8, 9, 11, 112, 15, 17,--31, 33, 37, 41, 42, 44, 46, 48, 49,'51, 54, 57, 58, 60, 61, 78,' 79, 85, 87, 88, 91, 93, 96,.103, 106, 113, 115, 129, 130, 139, 140, 144, 155, 163, 165, 166, 167, 170, 171, 172, 173, a nd 175. L(NOTE: 'These blades are welded to the shroud.) 2. Body, Steeples, Discs and Shrouds: No indication' of defects. All ind ' tions _noted were either polished / ground out, repaired or no action in if that was deemed.by-engineering. . TURBINE ROTOR #2' GENERATOR END A. Visual Examination: 11'.'.: Shims. protruding between. blade root end~and disc, L Stage. 4. 222 : Minor 'erosio~n' of stellite and adjacent braze. . Shroud erosion, L' 1,~ a'dmission. side at: each segment gap. ~ L3.

4.[ Shroud'bentoutwardL-1bothendsattipofeach'segmentgap.

1(NOTE:--Resultofblade/shroudwelding.) e b w n w m v--v r

v. =5., Physical damage as follows: a. Chipped and torn stellite-Blades 56, 67, 87, 93, and'132.

b., Den't'ed_ tearing _ Blade 57 and 85.'

B.- PT - Fluorescent: 1. Stub Lash Welds:. Random porosity approximately 10% of welds. C. MT - Wet Continuous: 1. L-2, Blade #156 tenon has linear indications approximately 1/4" and 1/8'.' long as 'shown below: 2. Body, Steeples,' Discs, and Shrouds: No indication of defects. TURBINE ROTOR #2 GOVERNOR END A. Visual Examination: 1. Upset-steeple land L -stage Blade #84_ to #102 2. Shi_ms protruding between blade root end and disc, L Stage. 3. Minor. erosion of stdllite and adjacent braze. 4. Shroud erosion, L-l' admission at each segmen; gap.

5. ' Shroud bent outward L-1 both ends at tip of each segment gap.

(NOTE:. Result of blade / shroud welding.) 6.. Physical damage as follows: ~

a. _ Chipped and-torn stell'ite Blades #72,.87, 103.

.b. ; Dented tearing Blade #101. B. :PT - Fluorescent: 1..-Stub Lash' Welds:. Random. porosity approximately:10% of welds. . C.: :MTl--. Wet Continuous:

1.

Body, Steeples,- Discs, Shrouds, and Tenons: No indication of defects. ' All. indications 'noted were either, polished /groun'df out, repaired, orl. ~

no action taken if.-that was deemed appropriate by engineering.

~ S 2'- - ~ s u

l n c -ENCLOSURE 2A NOVEMBER 1978 LOW PRESSURE.TRUBINE-INSPECTION -LOW PRESSURE TURBI'NE #2-TURBINE-ROTOR --GENERATOR END A. L Stage 1-. Visual, Magnetic Particle, and Liquid--Penetrant Examination: . Blades - No indication of defects'. a Stellite.- Minor erosion (see sketch). Lashing Lug Welds - No indication of defects. B. L-1 Stage 1. Visual,' Magnetic Particle, and Liquid Penetrant Examination: Blades - Minor physical damage to Blade #164, dent on convex side. Minor physical ~ damage to Blade #168, dent on leading. edge. All_ remaining Blades - No. indication of defects. StelliteL-No indication of defects. Lashing Lug Welds - No indication of defects. Under' Shroud Welds - No indication of defects.

Shrouds Minor. erosion _,.400 long x.200 deep on inlet side, lead-ing edge.

.C. 'L-2 Stage . l '. Visual and Magnetic Particle Examination: Blades'- Minor physicalfdamage to Blade #126, dent on' leading edge in stellite. LAllIRemainingLBlades?- No. indication.of defects.

Tenons:.-[ Crack indication on #87 - 1/4"-(polished out); and on
  1. 88.-l-1/4" (polished'out).

~

All Other Tenons

~No i Adication of defects. . Stellite..Ho-indication.of; defects. L ' Shrouds .No indication of defects ~. I j 'j! '~

r i I j ~ 3 I A 7 CADE A. Be D stJCKrT NO. 8 YPlcAL .125" 5.0" .030.060" g LEADING ~ s yrlCAL 0 0 0 TRAILING JL w i i A = 1/2 INCH 8 = 191/2 INCH ) I ~ I l i l 1 i i p. n. 1 c ::.. 1- ~. _ I = . e' A - EROSION SHIELD WIDTH 8 - EROS 10N SHIELD LENGTH f As - EROSION WIDTH STAGE L. GENERATOR r TUDE 23A3563 8e - EROSION LENGTH DATE 11/23/78_ . D ' - EROSION DEPTH L - LEADING REPORT NO. HS 1 T -TRAILING j 1 ( EROSION / DEFECT LOCATION CH RT e 4 m -O b a

e s D. L-3 Stage

1.

Visual and Magnetic Particle' Examination: ' Blades - Minor physical' damage to Blades #26, 30, 36, 48., 55, 58, '61, 64, and 168 (dents, polished out). Shrouds - No indication of defects. Tenons - No indication of defects. E. L-4 Stage 1. Visual and Magnetic Particle Examination: Blade's'- No indication of defects. Shrouds - No indication-of defects. Tenons - No indication of defects. - F. R3 Stage 1. V'isual and Magnetic Particle Examination: Blades'- Crack indication in Group #25, Blade #5 - 1/4" (see sketch); crack indication in Group #24, leading blade 1/2" i(see sketch). All: Remaining Blades - No indication of defects. Shrouds - No indication of. defects. Tenons - No indication of defects. G. R2 Stage 31. Visual and Magnetic' Particle Examination: Blades - No' indication of defects.- Shrouds - No indication of. defects. -Tenons - No-indication of defects. lH.- R1-Stage 6 ~~' ' 1.- Visual and Magnetic Particle ~ Examination: iBladesi 'No indication of: defects. Tenons No indication of defects. ~ Shrouds - No. indication of defects. ~ s I h vg 4 g

4 a BLADE GROUP 25 - BLADE NO. 5 J LEADING BLADE - NO. 1 4 inch long - 1/4' inch I/ above platform botm sides. Polished.030 deep.. " Indication remains. Indication ground out as [ shown 1/4 inch x 1/2 inch. s-

l..

l. ..: 2 ~. - BLADE GRO.UP ?4 - LEADING BLADE _ _

hr. i * ' :.... :::M -

=h v..- = ?r _ r u I 1/2 inch indication in blade fillet, outlet side. Polished _. 060 deep to remove indication. R3 STAGE - GENERATOR FNP Wing blade; group -LGroup No. 1 ( NOTE:. Groups counted from wing blade group in direct' ion-of rotation. ) ee.u. 8

  • 'F_

Op- -W '8- -yeau.- 9 %N W N TJt*2%*jlf*t :**.' 3;* :f*.2 "X*E'.'.M-w s.i *LO CCE u== w*.%;4 ua '.74. L, -- _.. - --9.NM N N NDN.bM N{g Emmm-. 'r-- oc.,,,.% v3m.22 >7 -- ~--

.? i!,h..

  • 8 l

s 2 74 -' TURBINE-ROTOR' 2 GOVERNOR END' A; L-Stage '!.1 Visual,' Magnetic. Particle, and Liquid Penetrant' Examination: Blades - Minor physical damage.to Blades 34 and 51 (dents, polished out). 'All Remaining; Blades - No: indication of defects. - Stellite.-Minor' erosion (see sketch). Lashing ~ Lug Welds'- No' indication of defects. - B. -L-1 Stage

1.. Visual, Magnetic' Particle, and Liquid Penetrant Examina+. ion:

- Blades"- Minor-physical damage to Blades 24, 35, and 48 (_ dent on' foil, polished'out), ~ Crack indication in Blade 92 - 5/8" in lashing lug .(polished out;-see sketch) ' Crack indication in Blade 178 - 1/2" in lashing lug (polished out, see sketch) All Remaining Blades '- No indication of defects. Stellite No indication of. defects. Lashing Lug Welds - No' indication of defects, Under Shroud Welds - No indication of defects. Shrouds ~- No irC cation of defects. C. L-2 Stage-A l1. ; V_isual.: Magnetic Particle, ~ and Liq _uid '_ Penetrant En.mination: ' ~ - Blades -. Minor physical damage-te Blades 7 10, 25, 41, 43. 101, l_05,111,and180-(dents,polishedout). - All Remaining-Blades; 'No indication of defects. ~ ~ Tenons:- No indication of defects. ' Stellite :No indication-of defects,. --Shroud 'Nol indication offdefects', A ) w - i T g 4-

c e l h / A BLADE-Ae 8e D 80CKET NO. T YPICAL 125 5.0** - .M.060' g LEADING ~ TYPICAL 0 0 TRAILING g A = 1/2 INCH B = 191/2 INCH 2

-: t:.:

t

a s-..

9"i -+ i. A - EROSICN SHIELD WIDTH -} B. - EROSION SHIELD LENGTH As - EROSION WIDTH I' STAGE L GOVERNOR _ Be - EROSION LENGTH. D -- EROSION DEPTH f TUBE 23A3663 DATE 11/23/78 L ' - LEADING. REPORT NO. RS 9 T -TRAILING. tF EROSION / DEFECT LOCATION CHART w.. .. =............ e . g 6 e e e.0,. 9 W A9 'A45o'W.7 %'g,y, m.

  • -'h"'

h eu r, e i te,1%, 'ana _ Oh,,g

n -c. t ~ F. s s b ~ ?D; -L-3 Stagei O '~ .l. (Visual and Magnetic Particle'Examinatior: Blades -iNo~ indication'of' defects.- s Shrouds No-indicat' ion of< defects. Tenonsk Crack indications;in 133, 144,-145, and 150 - 1/2" .(polished out);. (E.:L-4 Stage 1. Visual and Magnetic Particle Examination: -Blades.- No indication'of defects. - Shrouds - No indication of defects. Tenons - No indication of defects. .F.. R3 Stage- .l. Visual.and' Magnetic Particle Examination: t Blades - No indication of defects.- Shrouds - No indication of defects. ' Tenons - No indication of defects. G. R2 Stage: 1. Visual and Magnetic Particl'e Examination: - Blades : uNo indication of defects.. a Shrouds - No indication of defects. Tenons - No indication of defects. <H. Rl Stage 4

11. 'Visu'al and Magnetic Particle-Examination:

~' Blades t :No. indication' Of-defects. 1 Shrouds - Noiindicationfof. defects.- l cTenens. 'No indication of defects. 4 N w y au

~ x ^ o

f. ; y z

..a . g -. up m.r.. e, ' w:b - o . c ~ ~ r z n.. + k Qs .;y

f Ji?

r n. fY., ~ ^% ~ - =,,,.... ,3. * ' SHAFTS ~8' DISCS' s r 5 ,4 5,g ] c.

l. 'V'sual and-Macnetic PSrticleTExasination

i s ~ Y' u jShaft Are'asWNo'iindication 'o'f defects .,'( ..., -3.. '~ ' 01sc Areasi-:No: indication'of defects.. - 1 . Ya '.["7: f E 4 5 j 1 .-.r y 7 e 's,'. .+ . J.,' f f J. a d 4 n. 1'f %'M1 .y N 1 4 .-h'. F' L. 6 L I l ~ jf : '~L.- '( 4. > k l-' N'~.-.,? -L Gm ~ l Af. .e r k Y n. I p g ,s ), n ..Ll 3 s +. - ~ 4 x J' g 2.. i 4. '? I t { I,' g i 4 L e,. ? j ( 5_ 4 5 k f ' f-~ 4 r ~I 1 %. s p.,. g s

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n LH. St.ADING (GOV. ENO) ~ i.18 8 7 i 17 BLADE # 29 IN. " ". 'f BLADE SIZE .. t I] [I I] B "'TJ== 4 !f i 1/2 inch indicatiot'- r i SI'ELLITE l 7' 5./ WIRE ^ -jSTRIP '0 UTER ,j f-1 1 1 INLET O O O O ir h - Q

f A,

!k DISTANCE . INNER- -f i T TO DISTRESS WIRE i POINT IN ' INLET Ol O O O 'Q AIR, FOIL ,3 y INLET I di EDGE-

  • i*..

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t e; - -.., _. 4 l:}. } .i 9 . I x ..s. ,.J ,Y 3 w as. .........9. (,.

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.t i - ; lLH.BLADINs (GOV. END). j,: ]. 6 D 95

)

94 ..I 3 SLADE # 9 ..i - l . BLADE SIZE 29 IN. i ~ ,b ' k >. b GROU .g p l . n. STELLITE . !I l' i' STRIP { 0 UTER' h, ? f ai WIRE g L j INLdT Q Q O ,O g .s 5/8 inch

  • DISTANCC l[

INNER. .indicatia Ij TO DISTRESS WIRE POINT ' IN INLET O O O O [. Q AIR FOlt, I INLET .si. EDGE l ~ .f

u. *.

^* d ~ .,o,) ' I p. 8 e '0 CONCAVE ~ CONVEX'@ t- -}}

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