ML17255A830
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Eng i neer i ng Change Prin t D ate: 08/31/20 17 EC Numbe r : .....,, Fac ili ty : Type/Sub-t ype: 0000366685 00 7 B Y R O PEV Exelon. Topic From Pane l EVAL DETA I LS TIM E l OO 1.0 I SS UE ID E N TIF ICATION: L ast Updated By : L ast Updated Date: Te x t Status Page: 1 BYRV B 07/0 1/2009 UNLOCKED T i t l e: O P E VAL 07-006 , AUX FEED TUNNEL COV ER S I NSTALLAT I ON 1.1 IR #: 653093, 620080 , 789344, 783811 , 792213 and 790 4 28 1.2 Op E val #: 07-006 Revi sion: 67 Genera l Informa t i on: 1.3 Affected S t ation(s): Byron 1.4 Unit(s): 1 and 2 1.5 System: DS 1.6 Componen t(s) A ff ected: Un i t 1 and 2 Aux. Feed Tunnel F l ood Sea l s. 1.7 Deta i led desc r i ption of what SSC is degraded o r t he noncon f orm i ng condi t i on , by w h a t means and when fi rs t d i scovered, and extent of condi ti on f or a ll sim i l arly a f fected SSCs: T he f l ood seal covers and suppor t e l ements f or Aux. F eed Tunne l s (1/2DSFS006/07/08/09) do not meet the design bas i s requ i rements f or thei r as i nstal l ed con f igu ra tions for H i gh Energy Line Brea k (H E LB) load i ng. Th is cond i t i on has been identif i ed in I R's 653093 and 620080. Fu r the r eva l uation as documented i n E C 366723 (Attac h men t-A) i ndicates tha t a HELB pressure o f 17.7 ps i on the s ubje ct covers and suppo rting e l ements wou l d be acceptab l e for the sys tem Operabi li ty Ev al uat i on. T his cond i t i on i s app li cable to a l l o f t he covers f or t he Aux. F eed t unne l s as inc l uded i n the AEL o f t h is EC. Rev is i on 1 shows CA's #1 and 2 as CO MP LET E and adds CA's #3 th rough 10. T he new CA's w ill track comp l et i on of EC's f or each M S I V Rooms fl ood sea l s and completion o f the WO's to mod i fy t hem per the E C's. The re are no changes to the ope r abi li ty determ i nation or eng i neer i ng suppo rt. Rev is i on 2 shows CA's #3 and 4 as CO MP LET E and rev i ses the due dates f or CA's #7 and 8 for i nsta l lat i on o f U-1 t o 06/06/08. Instal l at i on o f U-1 was p l anned f or the f i r st week o f May , 2008, but was not per f ormed due to concerns tha t the work co u ld not be comp l eted w i th i n the allowed LCOAR time and may have to be moved into outage B1R 16. I R 76 4 527 was wr i t ten documenting these concerns, and ATI 76 45 27-02 t o Des i gn En g i neer i ng i s trac ki ng re sol uti on, due 0 5/30/08. T herefore , i t i s expected tha t CA's #7 and 8 may req u i re extension aga i n once these concerns have been worked out and new installation dates can be determined. Rev is i on 3 addresses the impact o f an i ss ue (I R 789344, Ref 2.5.3.13) assoc i ated with t he d i scovery t hat p l ates i nsta l l ed next t o the MSIV room vent i l ation fan discharge dampe r s, that were assumed to be blow-out plates by the pressur i zat i on ca l cula ti on , were i n f ac t blank-of f plates, not b l ow-out panels. The vent area assumed in Referen ce 2.5.3.1 0 was 51.3 f t2 per M S I V room. Furt her rev i ew by Engineer i ng resu l ted i n I R 790 4 28 (Re f 2.5.3.18) t hat doc u ments the potentia l for i nsu ffi cient ma r g in w i th respect to A F F SO s tr uct ura l in te gri ty. Revis i on 3 a l so addresses u s i ng Eng i neer i ng Change Print Da te: 08/31/20 17 EC Number : .....,, Fac il i ty : Type/Sub-t ype: 0000366685 00 7 BYR O PEV Exelon. Page: 2 dynam i c loading fa c t o r s (DLFs) on the FSO suppo rting str u c tu re concrete expans i on anchors. (Reference 2.5.3.2 4) Revi s i on 4 shows CA # 11 as Comp l ete. New FSO covers w il l be i nsta ll ed per the CA's cu rren tly ass i gned, using a bounding pressure assumption. CA # 1 1 created several i nter i m AC I T s to comp l ete a new mass and energy release ana l ys i s and a steam tunnel p re ssu riza t i on ana l ys i s. I t a l so c rea ted a new CA #12 to veri f y tha t the new FSO cover des i gn has res t ored t he required fa c t ors o f safety pr i or to c l os i ng th i s Op Eva l. Revis i on 5 extends t he due dates o f CA's #7, 8, 9, and 1 0 to 03/31/09 and CA #1 2 to 0 4/10/09. I t also adds a requirement t o CA #12 to determ i ne i f the Bl ow-out pane l TCCP's can be rem oved or must be made permanent. There are no technica l changes. The most re cen t p l an had been t o per f orm the Un i t 2 modi f i ca t i ons i n B2R 1 4, and the Unit 1 mod i fi ca ti ons the f ol l ow i ng month. However, a management dec i sion was made t o not per f orm the Un i t 2 work as o r i gina l ly p l anned due t o resources. The work was SCRF'd ou t of B 2R1 4. Rev i s i ons requ i red to the mod E C's are not comp l eted to suppor t the work. This i s due in part t o NRC Gener i c Letter 08-0 1 on gas vo i ding concerns. There is i nformation as we ll tha t the EC's wi ll prov i de a product tha t wi ll not chal l enge LCO t i me to perform the work on l ine. The fir s t oppo r tun i ty to perform th i s work i s i n March 2 009. MRC approved t h i s extens ion on 9/30/08. Revis i on 6 shows CA's 7, 8 , 9, 10, and Comp Action #4 as Comp l ete. These act i ons insta ll ed the fina l AF tunne l cove r s and TCCP's to change the b l ank-o ff p l ates t o b l ow-ou t pane l s. I t adds CA #13, wh i ch w i l l t rack mak i ng the Blowout panel TCCP's permanent modi fi cations. Comple t i on o f this CA w i ll al l ow c l osure of th i s Op Eval. Revis i on 7 shows CA's 1 2 and 13 as comp l ete. I t a l so rem oves the " Comp l ete to Close E C" checkmar k i n Pa sspo r t for TCCP EC 371279. TCCP EC 371279 installed temporary AF tunnel covers. To i nsta ll some o f t he brac i ng support i ng the temporary cover i nstallat i on , a sound-powered phone condu i t was cut. The temporary cove r and brac i ng has been phys i ca l ly removed , but E C 371279 is re main i ng open because the condu i t has not yet been repa i red o r permanent l y accepted as-is. E C 3672 11 has been i nit i ated and assoc i ated t o E C 371279 to repair the condu i t or accept i t's current cond i t i on permanent l y. Becau se t he conduit i s appropr i ately sea l ed, i t does not i mpact the ab i lity of t he AF Tunne l Covers t o per f orm their functi on , and thus E C 371279 is not re quired to be comp l eted in o r de r to close this Op Eval. 2.0 EVALUATI ON: 2.1 Describe the sa fe ty fun c ti on(s) or safe ty support function(s) o f the SSC. As a m i nimum the f ollow i ng should be addressed, as app li cab l e, i n describ i ng the SSC safe ty or safe ty support f unct i on(s): -Does the SSC rece i ve/i nitiate an RPS or ES F actuat i on s i gna l? No, the cover's function i s to protect the Aux. Feed Tunne l from flood i ng and protect the equ i pment fr om adverse load i ng. I t i s a pass i ve component. -I s the SSC i n the ma i n flow path o f an E CCS or suppor t sys tem? No, the covers are l oca ted in MSIV r ooms. -I s the SSC used t o:
Eng i neer i ng Change Print Da te: 08/31/20 17 EC Number : .....,, Fac ili ty : Type/Sub-t ype: 0000366685 007 B YR O PE V Exelon. Mainta i n reactor coo l ant pressure boundary i ntegr i ty? No. Sh u tdown the reactor? No Mainta i n the reactor in a sa f e shutdown cond i tion? No. Page: 3 i n Prevent or mit i gate the consequences o f an accident that cou l d re su l t o ff site exposures comparable to 10 CFR 50. 34 (a) (1), 10 CFR 50. 67 (b) (2), or 1 0 C F R 100.1 1 gu i de l ines, as appl i cable. Yes. The cover protects the valves (1/2A F 013A-H) l oca te d ins i de the tunnel f r om any har sh env i ronment. -Does the SSC prov i de re qui re d support (i.e., coo li ng, l ubr i cation, etc.) to a TS required SSC? No. -I s the SSC used t o provide i solat i on between sa f ety t rain s, or between sa f ety and non-sa f ety t i es? No. -I s the SSC requ i red t o be opera te d manual l y to m i t i gate a des i gn bas i s event? No. -Have a l l sa f ety f unct i ons descr i bed in TS been i nc l uded? Yes Have a l l sa f ety f unct i ons o f the SSC re qu i re d dur i ng norma l ope ra t i on and poten tial accident cond i tions been i nc l uded? Yes -I s the SSC used t o assess condit i ons f or E mergency Act i on Levels (E ALs)? No. 2.2 Descr i be t he f ollow i ng, as applicab l e: (a) the effect o f t he degraded or noncon f orm i ng cond i tion on the SSC safe ty function(s)
- The concern is t hat the covers and support i ng e l ements do not mee t the des i gn bas i s for H E L B l oad i ng. However, it does meet the operab ili ty requ i rement for the H E L B l oading, wh i ch is dete rmined to be an acceptab l e l oad i ng , wh i ch i s documented in EC 366723 (Attachment
-A) The i nappropriate assumpt i on (addressed by Rev 3 o f thi s Op Eva l) tha t the blan k off p l ates re li eve pressure wou l d result in h i gher MS I V r oom pressure potent i ally making the AF FSO i noperab l e. (b) any requ i remen ts o r comm i tmen t s established for the SSC and any cha ll enges to these; The covers are designed to stay in p l ace for des i gn l oading and p r otect the tunne l f rom f lood i ng o r any othe r harsh env i r onment. Ba sed on des i gn calcu l ations , the support members for the cover do not meet the design bas i s requ i rements f o r H E LB load i ng , however , the ope rabil i ty c r i ter i a f or the f a i ling componen t of the cover support i s met, wh i ch are the concrete expans i on anchors tha t mounts the cover plate suppor t members on t he conc re te wa l l. This evaluation show i ng operab ili ty acceptance i s con tained i n E C 366723 (Attachment
-A) . (c) the circumstances o f the degraded/noncon f orming cond i tion, i nc l ud i ng the possib l e fa il ure mechan i sm(s); The possib l e fa il ure mechan i sms i s over l oad of the p l ate o r suppo r ting elements. This wou l d allow a s tea m water m i xture to fl ow t o the area con taining the AF013s. A l t hough the va l ves are o f the same type and have sim il ar ma i ntenance as env i ronmental l y qua li fied valves, the AF013s are not environmenta l ly quali fi ed. There f ore t he harsh env i ronment could cause the valves to f a i l. (d) whether t he po ten t i a l fa il ure i s time dependent and whether the cond i t i on w i ll cont i nue to degrade and/or w i ll the potentia l consequences Eng i neer i ng Change Print Da te: 08/31/20 17 EC Number : .....,, Fac il i ty : Type/Sub-t ype: 0000366685 00 7 B YR O P EV Exelon. Page: 4 i ncrease; The poten tial fa i lure i s not time dependent. The cond i tion wil l not con t i nue t o degrade and the potentia l consequences w il l not i ncrease. (e) the aggregate effect of the degraded or noncon f orming cond i tion i n l ight of other open OpEva l s: T here are curren t ly n i ne other open Op Eva l s tha t i mpact B yron Un i t 1 and 2. However, none of the se are associated w i t h the Aux. Feed Tunnel cove r, and t here is no adverse aggregate effect o f the se n i ne open Op Eva l s on t h i s issue, or v i ce-versa. 2.3 I s SSC ope rabi li ty suppor te d? Expla i n bas i s Y E S (e.g., analysis, te st, operat i ng exper i ence, eng i neering j udgment, etc.): E C 366723 (Attachment
-A) contains the evaluat i on t hat shows the cover support members wou l d meet the operab ili ty cri teria f or rev i sions of t h i s Op Eval through Rev 3. To est i ma te the i mpac t of t he reduct i on in vent area i n Rev 3 o f t he Op Eva l , Sargent and Lundy (S&L) was contacted to per f o rm study runs on each unit. These study r uns had the f ollow i ng attr i butes: -The so f twa re program used (RELAP) i s accepted by the i ndustry for this type o f ana l ys i s and i s the same software used i n Reference 2.5.3.1 0 , -S&L has an approved QA program and the so f twa re was run from a con tr o l led l oca ti on, The run s were pe rf ormed by a qua lif ied ana l yst w i th oversigh t from a sen i or eng i neer, -Input s were deve l oped with i nput f rom Byron, Bra i dwood and Corpo ra te Eng i neering. The f o l low i ng are the sign i fi cant changes t o the mode l used i n Re f erence 2.5.3.10: Cred i t was taken f or more reali st i c mass and energy re l ease, (Re f 2.5.3.21) -The vent paths f r om the MS I V room to t he Ma i n S team Tunnel were more accurately mode l ed (pressure penalty), -Cred i t was taken f or t he openings created under References 2.5.3.14 and 2.5.3.15. Cred i t was taken f or t he annular fl ow area between the MSIV f an motor and f an shroud. Note tha t no credit was taken f or the fan runn i ng. Secu ri ty bars were modeled as part i al f low obst r uction. Cred i t was taken f or f l ow path o f normally open dampers on f an discharge (afte r adjusting for the obstruction due t o thickness o f the damper blades). The model was run in an iterative manner where By ron and B r a i dwood Eng i neering discussed the effects o f the changes f o r i mpact and reasonableness w i th S&L. Based on t he S&L study runs, the peak pressure i n the MSIV room a f te r accounting f or t he above model changes was 21.7 ps i g f or Un i t 1 and 1 9.4 psig f or Un i t 2. (Re f erence 2.5.3.19) Since the pressures have changed, new dynam i c load factors were determ i ned by S&L and p r ovided in Reference Eng i neer i ng Change Print Da te: 08/31/20 17 EC Number : .....,, Fac ili ty : Type/Sub-t ype: 0000366685 007 B YR O PE V Exelon. Page: 5 2.5.3.22. Note tha t work i s in progress t o insta l l st i ffeners on the AF FSO p l ates and tha t the DLFs on l y represent the AF FSO plates pr i or t o the i nsta ll at i on of t he s tiffeners.
On Un i t 1, two Te mpo ra ry Configuration Changes (TCC) were i nsta ll ed t o enhance a degraded bu t ope rable cond i t i on; remova l o f the b l ank o f f p l ates (Re f 2.5.3.15) and s trengthening of the AF FSO covers (Ref 2.5.3.1 6). The design of the s t if fener TCC on Un i t 1 used a peak pressure o f 20 ps i g and DLF o f 2.0 (Reference 2.5.3.20). As the TCC was be i ng i nsta ll ed, Sargent and Lundy prov i ded addit i ona l i nformat i on tha t the peak p re ssure was 21.7 ps i g , i nstead of t he 20 psig used f or the des i gn o f the T CC. (Th i s occurred due t o the paral l e l paths o f re fi n i ng t he ana l ys i s and i nsta ll ing the TCC.) The calcu l ation (Reference 2.5.3.20) used t o deve l op the f actors of safe ty f or t he TCC was reviewed; adequate margin ex i s t s to compensate f or t he i ncreased pressure and stil l assure ope rabil i ty o f the AF FSO Concrete Expans i on Anchors with a factor o f sa f ety greater than 2.0. A fin i te e l ement ana l ysis o f the p l ate itse l f shows that the plate wou l d rema i n intact (Reference 2.5.3.17). There f ore the Un i t 1 AF013s shou l d be considered operab le w i th the enhanced marg i n gained by t he tw o TCCs. For Un i t 2 the b l owou t pane l TCC has been i nsta ll ed , but Un i t 2 i s dif f erent than Unit 1 i n tw o other aspects; the tube steel stif f eners have not yet been instal l ed and the peak pressu re in t he MSIV rooms are lower. The pressures are lower due to d if ferent mass and energy re l eases resu l t i ng f rom d i fferences i n SG des i gn. These o ffset t i ng fa cto r s have been reviewed in Re f erence 2.5.3.17 and the factor o f safe ty for t he CEAs i s 1.35. This i s su f fi c i ently (but sub j ective l y) greater than 1 tha t ope rability is assured on Unit 2 by on l y c redit i ng the blowout panel TCC. The st i ffener TCC is being i nsta ll ed to increase marg i n. I f 2.3 =NO, not if y Operations Sh if t Management i nunediately. I f 2.3 = Y E S, c l early document the bas i s for the determ i nat i on. 2.4 Are compensatory and/or correct i ve act i ons requ i red? Y E S Correct i ve action i s i n place to i nsta l l mod i fi ca ti ons that would ensure fu l l des i gn bas i s compliance. Compensa t ory measures are re qu i red to ensure that f actors of safety rema i n within acceptable li mi t s. I f 2.4 = Y E S, comp l ete sect i on 3.0 (if NO , N/A sect i on 3.0). 2.5 Re f erence Documents: 2.5.1 Technical Specif i cations and Bases Sec t i on(s): 2.5.1.1 3.7.5 Aux. Feedwater System 2.5.2 UFSAR Sect i on(s): 2.5.2.1 3.6 , Attachment C3.6, Main Steam l ine B rea k i n Ma i n S team Tunnel 2.5.2.2 3.6 P rotec ti on Against Dynam i c Effect s Assoc i ated with the Pos t u l ated Break of P i ping 2.5.2.3 3.11 Env i r onmen tal Des i gn o f Mechan i ca l and Electrica l Equ i pment 2.5.2.4 15.1.5 S team System Piping Break at Zero P ower 2.5.2.5 15.1.6 S team System Piping Break at Fu ll P ower 2.5.3 Other:
Eng i neer i ng Change Print Date: 08/31/2017 EC Number : .....,, Fac ili ty : Type/Sub-type: 0000366685 007 BYR OP E V Exelon. Drwg S-895, Rev AA. Drwg S-896, Rev. u Drwg S-969 Rev. AA Drwg S-970, Rev AB Drwg S-1093, Rev. Q Drwg S-1062, Rev. x Drwg S-1502, Rev. G Drwg S-1088, Rev. H Cale. 5.6.3, Rev. 005 Cale. 3C8-0282-001, Rev. 003 IR 653093 IR 620080 IR 789344 Page: 6 2.5.3.1 2.5.3.2 2.5.3.3 2.5.3.4 2.5.3.5 2.5.3.6 2.5.3.7 2.5.3.8 2.5.3.9 2.5.3.10 2.5.3.11 2.5.3.12 2.5.3.13 2.5.3.14 EC 371272 Temporary Modi fi cation O f Damper Blankoff P l ate I n Safety Va l ve Room Roo f , Un i t 2, Rev 0 2.5.3.15 EC 371267 Temporary Modi fi cations O f B l anko f f P l ate I n Sa f ety Valve Room, Un i t 1, Rev 0 2.5.3.16 EC 371278, Aux i l iary Feedwater Tunne l Flood Sea l Covers Brac i ng (Un i t 1) For High Energy Line Break (H E LB) Loading (TCCP), Rev 3 2.5.3.17 EC 366723, Eva l uation Of Auxil i ary Feedwater Tunnel F l ood Barr i er For HELB Loads -Operab il ity Review, Rev 2 2.5.3.18 IR 790428 2.5.3.19 S&L DIT S040-BYR/BRW-8013, Ana l ysis o f L i ne Break in Lower Safety Va l ve Room, 7/1/08 2.5.3.20 Calculat i on 5.6.3.9-BYR08-068, Rev 1 2.5.3.21 IR 792213 2.5.3.22 S&L DIT S040-BYR/BRW-8012, Aux Feedwater Tunne l Operab i l i ty f or Byron and Braidwood, 7/1/08 2.5.3.23 EC 371279, Aux i l iary Feedwater Tunne l F l ood Sea l Covers Brac i ng (Un i t 2), Rev 1. 2.5.3.24 IR 783811 3.0 ACT I ON ITEM L I ST: If , through eva l uating SSC operab ili ty, it i s determined that the degraded or nonconform i ng SSC does not prevent accomp li shment o f the spec ifi ed safety funct i on(s) in the TS and the i ntent i on is to continue operat i ng the p l ant i n that cond i tion, then record be l ow, as appropr i ate, any required compensatory actions to support operabi li ty and/or correct i ve act i ons required to restore ful l qua lifi cat i on. For correct i ve actions, document when the act i ons should be completed (e.g., i rruned i ate, w i th i n next 13 week per i od, next outage, etc.) and the basis f or t i mel i ness o f the action. Correct i ve act i on t i meframes l onger than the next re f ue li ng outage are to be exp li cit l y j ust if ied as part o f the OpEva l or de fi c i ency track i ng documentat i on be i ng used to perform the corrective act i on. Correct i ve Action #1: Determ i ne scope and extent o f change (mod ifi cat i on), Get i nsta ll ation est i mate. Feed th i s i n f o to WC f or the i r ATI.
Eng i neer i ng Change Print Da te: 08/31/20 1 7 EC Number : .....,, Fac ili ty : Type/Sub-type: 0000366685 00 7 B YR O P EV Exelon. Re spons i ble Dept./S upv.: Action Due: Comp l ete Page: 7 Ba sis f or t i mel i ness o f act i on: deg ra dation concern w i th th i s issue. of t i me. There i s no t i me-dependent The due date is a reasonab l e amount Action Tra c k i ng #: 653093-03 Correct i ve Action #2: Determ i ne instal l at i on complet i on date and generate appropr i ate corrective Respons i ble Dept./Supv.: Action Due: actions. Work Cont r o l.tlllllllllllll Comp l ete Ba sis f or t i mel i ness o f act i on: deg ra dation concern w i th th i s issue. of t i me. There i s no t i me-dependent The due date is a reasonab l e amount Action Track i ng #: 653093-0 4 Correct i ve Action #3: des i gn. Complete E C 367209 for AF t unne l Respons i ble Dept./Supv.: Action Due: Complete Ba sis f or t i mel i ness o f act i on: Some t i me i s re qui re d to des i gn a change to the tunne l covers. There is no t i me-dependent degradat i on concern w ith th i s issue. Action Track i ng #: Correct i ve Action #4: des i gn. Respons i ble Dept./Supv.: Action Due: 653093-05 Complete E C 3672 1 0 for AF t unne l Complete Ba sis f or t i mel i ness o f act i on: change to the tunne l covers. Some t i me i s re qui re d to des i gn a There i s no time-dependent degradat i on conce rn w i t h th i s issue. Action Track i ng #: 653093-06 Correct i ve Action #5: des i gn. Complete E C 3672 1 1 for AF t unne l Respons i ble Dept./Supv.: Action Due: Complete Ba sis f or t i mel i ness o f act i on: change to the tunne l covers. Some t i me i s re qui re d to des i gn a There i s no time-dependent degradat i on conce rn w i t h th i s issue. Action Track i ng #: 653093-07 Eng i neer i ng Change Print Da te: 08/31/20 17 EC Number : .....,, Fac ili ty : Type/Sub-type: 0000366685 007 BY R O P EV Exelon. Page: 8 Correct i ve Action #6: des i gn. Complete E C 3672 1 2 for AF tunne l Re spons i ble Dept./S upv.: Action Due: Complete Ba sis f or t i mel i ness o f act i on: change to the tunne l covers. Some t i me i s re qui re d to des i gn a T here i s no time-dependent degradat i on conce rn w i t h th i s issue. Action Tra c k i ng #: 653093-08 Correct i ve Action #7: 1061688. Re spons i ble Dept./Supv.: Action Due: Modify U-1 AF Tunnel covers per WO Complete Ba sis f or t i mel i ness o f act i on: change to the tunne l covers. Some t i me i s re qui re d to des i gn a There i s no time-dependent degradat i on conce rn w i t h th i s issue. Action Track i ng #: 653093-09 Correct i ve Action #8: 1061690. Respons i ble Dept./Supv.: Action Due: Modify U-1 AF Tunnel covers per WO Complete Ba sis f or t i mel i ness o f act i on: change to the tunne l covers. Some t i me i s re qui re d to des i gn a There i s no time-dependent degradat i on conce rn w i t h th i s issue. Action Track i ng #: 653093-10 Correct i ve Action #9: 1061693. Respons i ble Dept./Supv.: Action Due: Modify U-2 AF Tunnel covers per WO Complete Ba sis f or t i mel i ness o f act i on: change to the tunne l covers. Some t i me i s re qui re d to des i gn a There i s no time-dependent degradat i on conce rn w i t h th i s issue. Action Track i ng #: 653093-1 1 Correct i ve Action #10: 1061694. Respons i ble Dept./Supv.: Action Due: Mod i fy U-2 AF Tunne l covers per WO Complete Ba sis f or t i mel i ness o f act i on: change to the tunne l covers. Some t i me i s re qui re d to des i gn a There i s no time-dependent degradat i on conce rn w i t h th i s issue. Action Track i ng #: 653093-12 Eng i neer i ng Change Print Da te: 08/31/20 17 EC Number : .....,, Fac il i ty : Type/Sub-t ype: 0000366685 00 7 BYR O PEV Exelon. Page: 9 Correct i ve Action #11: Determ i ne course o f act i on to align the phys i cal p l ant and the licensing bas i s. (analys i s, physica l changes, UFSAR/l icensing c hange s etc). Create addit i ona l act i ons as requ i red. Re spons i ble Dept. /Supv.: Action Due: COM PLETE Ba sis f or t i mel i ness o f act i on: The know l edge rega r d i ng AF FSO s i s evo l v i ng. Time i s needed t o determine the best so l ut i on. There i s no time-dependent degradation concern w ith th i s issue. Action Track i ng #: 653093-13 Cor re ctive Action #1 2: After i nsta ll ation o f t he fi nal tunne l cover des i gn as documented i n CAs 653093-09, 10, 11, 1 2 , ver if y t hat the factor of sa fe ty f or a l l componen t s has been restored t o the design va l ues, t here are no ho l ds I unve r if i ed assumpt i ons assoc i ated w i th the design, and the Op Eval act i ons have been completed. If any of the se actions are not comp l ete, create a new co rre ctive act i on to trac k comp l etion. De term i ne i f the Bl ow-out pane l TCCP's may be rem oved or must be made permanent. I f they must be made permanent, create new co r rec t i ve act i ons to t rac k comp l etion. Respons i ble Dept./Supv.: Action Due: 0 4/10/09Comp l ete Ba sis f or t i mel i ness o f act i on: Th i s date i s t he severa l weeks after the final CA dates f or installat i on o f the FSO covers to a ll ow time to per f orm i t fo l low i ng installat i on o f the new covers. Action Track i ng #: 653093-17 Cor re ctive Action #13: En sure TCCPs 371267 & 37127 2 (Ul & U2 va l ve rooms' blow-out pane l s) are converted i nto permanent modif i cations. Respons i ble Dept. /Supv.: Action Due: 0 6/30/09Comp l ete Ba sis f or t i mel i ness o f act i on: Al l phys i cal p l ant changes to reso l ve th i s issue have been comp l eted. The b l owout panels are a l ready i nsta ll ed under TCCP's. Th i s act i on i s adm i nistrative to make them permanent. Action Track i ng #: 653093-18 Compensato ry Measure #1: Insta ll TCC f or Un i t 1 B l ank O ff Pane l s (EC 371267). Respons i ble Dept./Supv.: Action Due: Complete Ba sis f or t i mel i ness o f act i on: enhance margin t o ope rabi li ty. Complete. Action Track i ng #: N/A Perf ormed on exped i ted bas i s t o Eng i neer i ng Change Print Da te: 08/31/2017 EC Number : .....,, Fac ili ty : Type/Sub-t ype: 0000366685 007 BYR O PEV Exelon. Page: 10 Compensatory Measure #2: I nstal l TCC f or Un i t 2 B l an k O f f Pane l s (E C 371272) . Re spons i ble Dept./S upv.: Action Due: marg i n to operab i lity. Pe rfo rme d on exped i ted basis to enhance Comp l ete Ba sis f or t i mel i ness o f act i on: Complete Action Tra c king #: N/A Compensatory Measure #3: (EC 371278) I nstal l TCC f or Un i t 1 AF F SO Brac i ng Re spons i ble Dept./Supv.: Action Due: Complete Ba sis f or t i mel i ness o f act i on: enhance margin t o ope rabi li ty. Perf ormed on exped i ted bas i s t o Action Track i ng #: N/A Compensatory Measure #4: (EC 371279) I nstal l TCC f or Un i t 2 AF F SO Brac i ng Respons i ble Dept./Supv.: Action Due: Complete Ba sis f or t i mel i ness o f act i on: Perf orm i ng on exped i ted basis to enhance margin t o ope rabi li ty. Action Track i ng #: 653093-14 (In prog re ss) 4.0 SIGNATUR E S: 4.1 Preparer(s)
See M il estone I See M il estone 110 Da te I Date 4.2 Reviewer Ssee Milestone I See M il estones Date (10 C F R 50.59 screener qua li fied o r active SRO li cense ho l der) 3rd Pa rty Da te Rev i ew N/A I See M i lestones 4.3 Sr. Manager Des i gn Engg/Des i gnee Concurrence See M il estones Da te 4.4 Operations Shi f t Management Approva l See Mi l estones Da te 4.5 Ensure the comp l eted f orm i s forwarded to t he O E PM for processing and Action Trac ki ng entry as appropr i ate. 5.0 O PERABIL I TY EVA LUATION CLOSURE: 5.1 Corrective act i ons are comple te, as necessary, and t he Op E val i s ready f or c l osu re I See M il estones Da te (O EPM)
Eng i neer i ng Change Print Date: 08/31/20 17 EC Number : .....,, Fac ili ty : Type/Sub-type: 0000366685 00 7 BYR OPEV Exelon. Date 5.3 5.2 Page: 1 1 Operations Shi f t Management Approva l /See Mi l estones Ensure the comp l eted form i s f orwarded to the OEPM f or process i ng, Act i on Tracking entry, and cance ll at i on of any open compensatory act i ons, as appropr i ate.