ML20029C146
| ML20029C146 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 02/12/1988 |
| From: | Tomlinson E NRC |
| To: | Calvo J NRC |
| Shared Package | |
| ML20029C132 | List:
|
| References | |
| FOIA-90-361 NUDOCS 9103260277 | |
| Download: ML20029C146 (5) | |
Text
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,Y ([g 1 g 3pg VEMORANDUM FOR: Jose A. Calvo FROM: E. 8. Tcelinson
SUBJECT:
$1F PLAN 1 10VR WITH Attached is a descri;3 on-of the events trhich occurred pr rt and during the 1 tour of $1P Unit i W b lt should be noted that elieved the icentity confiden 141 prior to the $5AT of eny $equire %n.ent to r:a'ntti r site tour cr W g ] ~ ~ The attacbec cescription includes the rati n le 'for the actions telcn by the $561 with respect to the site tour an concerns.
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t-iHilillM C'F LHM S I LM 10 AhD W G 7gg l0UR OF STP Uhl12 VITH FMGh ). In eraretion for the tr*specti $1P during the week of E M m C the SSAT was ir>terviewing by telephone lo obtainTore specific inf omaticn regarding the inets cual s concerns. Marranged the irde rvie,5 ar.d g rovi the $$AT with the nur.ber of the allegitions associated with each 2. M arrange for a telephcre intery th M g &- allegations concerns as stated ~ also prorded a list c ten on gi ' y The allegations are listed below (by four digit number on y 41er.g with a brief surration of the concern: [ Festeners were re.aed from Westinghouse switchgear end replaced with non Vestinghouse festentr$. SIP design is such that access to equipcera f or t.ainter.ar.ce is difficult. Eechtel ranagement is not resportsive itM concerns regarding accessibility to equipe4nt f or r, air.tenance. HYAC welds are not in accordance with specification because the specifications are confusirm, flexible conduit bend radius had been violated in seven cases, five of which had been accepted by the SIP /Ht&P SAFETEAM. Interference with remote valve extensions. Additional radiation protection should be provided at the LWPS stal water panel. Foor rar.agec4nt with regard to procuring and processing festeners. Seventy-two cases of accessibility prcblems for equipc4nt raintenance, repair. zanual shutdown. gage reading. The RCP loops instrur4ntation lines have only one valve but L should have two. 3. i MEME s interviewed by tele one on DJritig the ntervief - @ discussed erns in eral teres, but provided no specifics with respect to an concerns. id not respord to SSAT r.emb estions re r.g what syster.s an omponents were associated vi concerns, and where these systems /ccepone ere located. Instead _ _ stated that@% ould 'show" the 55AT e me
o2 The 55AT egreed to tenthyESP2 Mon a plant coricerns on a pinot touhlM r teur for i day to silet to she g he 55Al[ % oncerns. The tetr des teriethely set up for k . 2,d 4 Subsequent to the telerhone interview withM seitral other (I] vere intt.rvi ed by telephone. With the additional information prev 4ded by other , as well as infortation obtained on site. the SSAT i concerns. The results g t".. N 1 w/ 5 are as follows: {giEM - 1he 55A1 concluded that these two allegations addressed the sere basic issue; 1.e.. design concerns relating to accessibility of equipcent for r.ainterance. repair, r.anual operation, etc. The SSAT further concluded that these allegations eddress concerns of a sic.ilar, if not identical. nature 'which were investigated and dispositier.co by hKC Region ly or the $1P StFL1EAM. It was dect(td that the 51 AT would review the allegations previously ir.,estigated to deterr.ine if there were any significant safety issues raised. The $$AT review is still in progress. At the conclusion of the investi-getion, the SSAT will deterr.ine if these allegations r.eed to be addressed further. Ifie SSAT con luded that this allegation is a subset of allegations Ir.suf ficient specificity has been provided for the 55AT to conduct an investigation of this allegation. Hcwever, any technical r.atter conveyed by the a lecation vil)_ be covered as part of the resiew of allegations n Q. This allegation deals with minieurr, bend radius in flexible condult. The 55A1 reviewed each of the seven such instances referred to the SAFE 1EM for investigation. including irspecting . the five cases dispositioned by the S.AFETEAM as acceptable. The 55AT agreed with the SAFETEM findings. In addition, the $5AT inspected several hundred other flexible ccnduit installations during the sit 4 visit. The 55A1_ concluded that the issue of flexible concuit bend radius was adequately co d and that. in the absence-of any additiona specificity frce nothi further coule be gained froc This allegation deals with the adequacy of HVAC welds. The sane concern was raised by several other allegers and the SSAT rake a neric issue out of HVAC velding. The SSAT concluded tha oncern would be addressed as part of the gener c issue, and that there was no advantage to addressing it independently. {PM This allegation addresses interference with remote valve exten. sions which the SAFE 1EAM determined to be acceptable. The SSAT deterrnined that the interference w corrected egardless of the SAFE 1EAM dispositon. Therefore, neern was resolvec. and no benefit would be d ved from N'k
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a q.7 In-this issue.NEWjes cor.terned that, under certain i conditions.' the Tiquid Wste Proc ssing syster-(LW5) tnd 1he 9 ~~: h et t(r-Cocier t. 5ys tem (K5) cedd !.e crc ss cor rette d. Ind _ that ~ accitional radiation prctection us required of the LWS seal pirel in-the evtnt of this-cross connection.- - The 5 SAT does not considtr this to be a credible her t. and an inve$tiption tan not be justified. = {@ poor r.anagemer.oncern exprtssed in this allegation perttins to c t with reptd to purchasirg fastenera. The $5AI had listed f asteners as one of the ten prim 6ry allegations to be investigateo at 51P. One team r4mber wss assigned exclushely to investistte fasteners to a degree that went vt)) cnd or e.anspr.ent. Based or this, the 5 TAT concluded the concern wobid be t.dcressed as part of the overal) tstener investigation. Therefore there was no teeci to sddress this .isste independer.tly witt [Q This allegation eddressed the tahing in the RC loop i'nstrunn-taion lir.es. Only one vehe is installed. end is of -the opinion that two art required. This issue has bee a dressed 'indeptrfent of the 55A1 investigation and the single valve -iristtilation was found to Lt acceptable. The 55A1 cculd not fino any reason ttr Osagree with the finding. and it w6s. concluded that further iraestisetion was not warranted. - M This-is the only concern that had which the $5AT did not' teel had been addressed in sor4 r.Foer. The concern is that fasteners were ren.oved from Vestinsbeuse switchgear and T ere re ed _with f asteners not provided by Westloghcuse. h was concerned that the integrity. of.the switchpear-osures (sheet retal) ttd been coc$ror ed.- Tre SSAT wanted
- to investigate t s ccecern and invit.
po the:sita~
- to show the 55AT oncerns since d or. cou d not;
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- provide
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- 4 '. Foi cwing th onter.ns. tJb $5AT' contac ted-explaineo the new position.'and arrangeo tb lir.itfi 6 tsit- ,to.one hour. Also. ities agreed to' visit Unit 2. only. since access toL l* nit 1 is considerably siore dif ficult to obttin. and anplssue sed on-LUnit:2 could-be; subsequently addressed by-the-55AT on _ Unit 1. greed 30 the constroints imposed by' the 5 SAT anc was to infors f i s u.e. . 5.[ b rrived at the 5~TP site at approximatelykh asset and escorted by Me ers C619 and Temlimon of the SSAT. Prior to comencing the' p~1 ant tour 'as again advised that the. SSAT wanted to seeM.oncerns rel itve to (he-Westinghcuse switchgear. anc that the tour was to be limited to one hour (app'x). B 9 em 4 r---% v - 'E wr. e, e-w e-e r <---,.e-.-,w-=,,,,, vr.,r.,,,,,, w e, m wm A,an m.-e., - ec e w-e u-, ,..ee,.e m % %.c ,,.e 4a..-c w a+w+...# wm..- r
l 4 At the (c.nclusica of 19 hitroductions.{ff/5$7 Mend the 55.AT r4thr 5 prcce ed(-d to (nit ?. haggg' 5(oncern reitthe to s alving in the s($ 2,ent directly to the conteirant end ttcct tte d to si cs the 591 r - lo;? it s tra t raatic o lir.c. ~41 t t r s oa dei t t e. the g r ev a l e f t 111 contaire.ent and I;roceeded to the turbir.e l'uilding. In the turbir.e buildirMW$$ Jewed the $$Al the 13.f ky, nco-st(tty reisted switchgear ard pointed out Lor.e v.issing fasterers and sor.e indicationc of poor reinter.ance. 1he $'iAT tcirtw1 edged t tJe observeticos, but ses interested i ety re1Jted corponents. as requested to shew the
- encerns relathe to the less 1E 63 iAC swithchgehr.
ed tre $5AT to the non.stfety. Minnce of p1tr<t eies(1. but was Qriabl _to locate try saf ety relded e9ectrical e qt i pr.ent. Follcwing this. ed the $$AT to o warehouse in what presto to be a futilt se'erch for estirgbevse switchster and pvriotr.cd fasteners, The pitut tour was concluded af ter visiting the warebogse.
- 6. h M Ils ?4. irs ure the SSLT otscrvations regarding the plant tcur with Tf t 1 o1)
,o ho sa fety corcern.<, wert identified. c Fo Vestirghtvse switthscar was obstrved - rcst swit:hgear, including the 13.8)v adn 4.16kv. tre by 11L-6cv14. o lair.ed to have racy concerns. Upon request, hostver, declined to identify these concerns to (ht 55AT. or to provide the SSAT with copies pf[1 iles/ notes. {Qgain insisted upcri ghpeyj,rg the $$AT
- scrcerns,
]r the process of Scing to and returning f ece contaircent.h o iderdified seitral areas wttre access to equiprent/ccc.pontots for-purposes of reintecance and/or c;eration t,as difficult. The $$AT s c knowledge cN]corre nts. He ever, it should be noted that ,AB E hemose r 3-. J> 'g,s~ n a}}