05000336/LER-1993-014

LER 93-014-00:on 930714,discovered Surveillances Procedures Had Not Been Performed within Specified Time Intervals Due to Insufficent Planning.Missed Surveillances Immediately performed.W/930813 Ltr

ML20056D831
Person / Time
Site:	Millstone
Issue date:	08/13/1993
From:	Criscone J, Scace S NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
LER-93-014, LER-93-14, MP-93-642, NUDOCS 9308180109
Download: ML20056D831 (4)

LER-2093-014,

Event date:
Report date:
3362093014R00 - NRC Website

text

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J NZRTHEAST UTILITIES *=' o"* " ' S * " S" "' S """ " " * " * " .

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( ' y ' Ene'esI$tIeNervIcel*N.rany HARTFORD. CONNECTICUT 06141-D270 N:rineast Nstw Energy Company (203)E 55-5000 August 13, 1993 i MP-93-642 Re: 10CFR50.73(a)(2)(i)

U.S. Nuclear Regulatory Commission -

Document Control Desk Washington, D.C. 20555 ,

Reference:

Facility Operating License No. DPR-65 Docket No. 50-336 Licensee Event Report 93-014-00 Gentlemen: .

This letter forwards Licensee Event Report 93-0014-00 required to be submitted within thirty (30) days pursuant to 10CFR50.73(a)(2)(i). Specifically. Technical Specification surveillances were not performed within the required interval.  :

Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY ,

FOR: Stephen E. Scace l Vice President - Millstone Station  !

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BY: Harr( y ? .y .. s Millstone nit x

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SES/JLC:cic ,

Attachment:

LER 93-014-00 cc: T. T. Martin, Region 1 Administrator P. D. Swetland, Senior Resident inspector, Millstone Unit Nos.1, 2 and 3 G. S. Vissing NRC Project Manager, Millstone Unit No. 2 I

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TITLE (4)

Technical Specihcanon Surveillance Not Performed Within Required Time Interval i EVEtc DATE (5) ( F A NuMPE; sm l RE POAT DATE (71 OTwE A F AOt ? TIE S NVOL VE D iP i F AO'UTY f=AME S uONw oAv vtAR vEAR LT  ;

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TE.f P"ONE NUVEE D NAME AREA CODE John L Criscione, Semor Encineer, ext. 4M 4 2l0l3 4l4l7l-l1l7l9l1 COVDLETE ONE UNE rDA E ACH couPONEN FAiURE DE SCRBE0 IN TwS REPOAT c13,  ;

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On July 14,1993, at 1200 hours0.0139 days <br />0.333 hours <br />0.00198 weeks <br />4.566e-4 months <br />, wnh the plant m Mode 1.100% power level, it was d:scovered that surveillance procedures SP 2$05C-1, " Post incident Recirculauon System Operability TestJ and SP 2610F-1, .

"PORY Block Vahe Operabihty Test," had not been performed within the spcified time mterval m accordance I with Technical Specihcanon 4.0.2. SP 2605C-1 senbes the Facihty 1 post mcident recirculation f an can be started by the operator from the Comrol Room and that it operates for at least 15 minutes. SP 2610F-1 venfies that the block vahe can operate throuch one complete tyde of full travel and valve posinon indicanon Is

' available m the Contro! Room. These quarterly surveinance procedures are reqmred to be conducted every 3 t months, not to exceed a maumum of 115 days ((92 days + 25c) c = 115 days). SF 2605C-1 and SP 2610F-1 i I had been previously performed on March 1,1993. Upon d:scovery of the missed surveillances, they were ,

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1. De cnpimn of Event  :

On July 14.1003 at 1200 hours0.0139 days <br />0.333 hours <br />0.00198 weeks <br />4.566e-4 months <br />, wnh the plant in Mode 1.1009 power level it was discovered that suneillance procedures SP 2t30SC-1. " Post incident Recirculanon System Operabihty Test, and SP 2610F-1. PORY Block Vahe Operabiht) Test." had not been performed wnhm the specified ume interval m accordance wnh Technical Specification 4.0.2. SP 260SC-1 verifies the Facihty 1 post incident rearculation fan can be staned by the operator from the Control Room, and that it operates for at least 15 minutes, SP 2ts10F-1 senfies that the block valve can operate through one complete cycle of full travel and vahe posinon mdicanon is available m the Comrol Room. These quanerly surveillance procedures are required to be conducted esen 3 months. not to exceed a maximum of 115 days ((92 da3 s + 259) = 115 day s). SP 260SC-1 and SP 2610F-1 had been previously performed on March 1.

1993. Upon disemery of the missed surveillances they were immediately performed.

In May 1993, an minauve was established to schedule all Techmcal Specif canon suneillances by computer. The imual result was the mcorporation of weekly and monthly survel!!ances onto the computer schedule. to be followed by quanerly and yearly suneillances. Howeser, by the time quarterly and later s .rveillances were issued and scheduled. these two particular surveillances had already passed their 250 margm for performance and were thereby missed as the on-shift Operations personnel were nm noufied of the schedule revNon.

On July 14. 1093 uhen the Operations Technician was reviewmp surveillances requ red m June, n was discosered the two suneillances had not been performed. The Shift Supenisor was notified on Juh-1J. 1003 and the suneillance immed:ateh performed.

r 11 Came af Event The cause of thn incidem was program failure. miufhcient planning. The computer generated

, sunei!!ance schedule was not validated nor schedule omasions promulgated by the miegrated team and Operauons Staff to ensure all sunei!!ances were scheduled. When the d:scovery was made that the imual  !

comptner generated schedule did not mcorporate quarterly surveillances, compensatory action was not

taken m a umely fashion to ensure these quanerly suneillances were completed wnhm the allowable 1

inten al A contributory cause was personnel error, work organization. and planning. The review of completed survei!!ances with respect to required frequency uas not done at the appropnate periodicity.

111. Anahm of Evem Per Techrocal Spenficanon 4.0 2, each sune1 Hance requirement shall be performed withm the specified time mienal wnh a maximum allouable extension not to exceed 259 of the surveillance ume mterval.

This esent n being reponed pursuant to the requirements of 10CFR50.73(a)(2)O), meident category 30 day Licensee Esern Report.

At no time was the safety of the plant at nsk due to survet!!ances were not performed wnhin the requ red mierval because the last quarterly surveillantes were sainfactority performed on March 1.1993 for SP 2605C-1 and SP 2610F-1. On Jah 14,1993. when the encovery was made these surveillances had not been performed withm the a!!awase ume mienal for the next cuarter, they were immediately -

perf ormed satisf acionly . This resulted in surveillance performance 20 days outside the allowable mierval f or the quaner, ,

Between the performance of the last quarterly suneillances and July 14.1993 performance. no  :

mamtenance or modifications were made to the applicable equipment to affect operabilnv. Therefore. it I is unEkely the equipment would hate failed to satisfy the safety related funcuorn '

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,E n ~ mue sw=,,s e w en uw aw.vw Nm surm mA s; on lY. Correctn e Action l'pon dscmery of the rmued suneillances, both were perinrmed immedtately, Suneillances due in May and June were also checked to determme if similar problems eusted. ,

To prevent recurrence, the folloump acuonc were implememed:

1. The Operations Technician has vahdated the computer generated surveillance schedule through July 1u94 to ensure ALL sunediances are 1sted.

2. An Operauons tracking system utilizmg a hst of all surveillances for a particular period is being modihed to melude independent status checks on sunedlences by the on shift Supervismg Control Operator (SCO), the Operations Assistant, and the Operanons Techmcian.

3 Other apphcable Una 2 departments reviewed this event and determmed adequate measures are in place to pres ent recurrence of this problem. Imtiauves and programs are in place to ensure proper scheduhng and verificanon of compleuon of suneillances.

4. The draft revision to Operations Department Instruction. 2-OPS-4.03, "Flowpath for Technical Specihcanon Required Sunedlances" was tersed to address changes to the process brought about by the Integrated Team irunatise to schedule Techrucal Specificanon suneillances using the P2 schedule. The ODI also includes a requirement for the Operanons Assistant to serify complenon of scheduled Techmcal Specificanon sunedlances at regular intervals.  ;

V Adinonal Inf ormation T here were no faded components associated with this esent.

Similar Esenb: !_ERN 93-001,02-001, 91-006,41-007 90-020, M-007, M-005 5

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