ML17334B183

LER 88-001-00:on 880106,Tech Spec 3.3.3.10 Discovered Not Met for 871230-880106 Due to Discovery of Incorrect Lineup for Radiation Monitor VRS-2500.Caused by Personnel Error. Flow Restored to Monitor & Lineup verified.W/880129 Ltr

ML17334B183
Person / Time
Site:	Cook
Issue date:	01/28/1988
From:	Lauren Gibson, Will Smith INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
LER-88-001, LER-88-1, NUDOCS 8802030470
Download: ML17334B183 (6)

Text

REGULATOR'NFQRMATIQN DISTRIBUTION 'TEM (RIDS)

A(>C ESS I QN N BR 8802030470 DQC. DATE: 88/01/28 NOTARIZED: NO DOC hET g FACIL: 50-316 Donald C. Cook Nuclear Poeer Planti Unit 2i Indiana 8c 0500031:

AUTH. N*ME AUTHOR AFFILIATION GIBSON Indiana Michigan Poeer Co. ( formerly Indiana h Michigan El ~

SMITHS'. G. Indiana Michigan Poeer Co. ( formerly Indiana ~c Michigan cj RECIP. NAME RECIP IENT AFFILIATION

SUBJECT:

LER 88-001-00: on 871230'ncorrect sample valve lineup for VRS-2500 auxiliary bldg vent radiation monitor discovered resulting in failure to meet Tech Spec 3. 3. 3. 10 criteria.

Caused bg personnel error. Procedure changed. W/880129 ltr.

DISTRIBUTION CODE: lE22D COPIES RECEIVED: LTR ~ ENCL / SIZE:

TITLE: 50. 73 Licensee Event Report (LER)i Incident Rpti etc.

NOTES:

RECIPIENT CQP IES REC IP IENT CQP IES ID CODE/N*ME LTTR ENCL ID CODE/NAME LTTR ENCL PD3-3 LA 1 PD3-3 PD 1 1 W I GG INGTQl 3, D 1 INTERNAL: ACRS MICHELSON ACRS MOELLER

• EOD/DQA 1 1 AEOD/DSP/NAS 1 1 AEOD/DSP/RQAB I 2 *EQD/DSP/TPAB 1 1

• RM/DCTS/DAB 1 DEDRO 1 1 NRR/DEST/*DS 1 0 NRR/DEST/CEB 1 1 NRR/DEST/ELB 1 1 NRR/DEST/ I CSB 1 1 NRR/DEST/MEB 1 NRR/DEBT/MTB 1 1 NRR/DEBT/PSB 1 1 NRR/DEBT/RSB 1 1 NRR/DEST/SGB 1 1 NRR/DLPG/HFB 1 1 NRR/DLPG/GAB 1 1 NRR/DOEA/EAB 1 1 NRR/DREP/RAB 1 NRR/DREP/RPB NRR/ >cst, I.s., epproxfmerefy fifteen tfnplecpcce rypervtittsn linn/ (18)

On January 6, 1988, at 1310 hours0.0152 days <br />0.364 hours <br />0.00217 weeks <br />4.98455e-4 months <br />, it was discovered that the sample valve lineup for VRS-2500, Unit 2 Auxiliary Building Vent Radiation Monitor, was incorrect. As a result of the incorrect lineup Technical Specification 3.3.3.10 Table 3.3-13 Section 3a was not met for continuous noble gas monitoring from December 30, 1987 to January 6, 1988.

The apparent cause of this event was cognitive personnel error. The chemistry technician involved did not restore the valves to their normal alignment after obtaining weekly grab sample off VRS-2500 on December 30, 1987 as per procedure. P I

After discovery of incorrect ya'lve lineup on January 6, 1988) proper flow was restored to VRS-2500 and 'the,'valve lineup was verified correct (completed at 1320 hours0.0153 days <br />0.367 hours <br />0.00218 weeks <br />5.0226e-4 months <br />).

The chemistry technician 1'ntvolved was counselled and the sampling procedure was changed to require indyepeI1dent verification of the proper valve alignment at VRS-2500.

88020304 80128 PDR ADOCK 0> 0003i PDR 8

NRC Form Srw (94)3)

NRC Form 355A U.S. NUCLEAR REGULATORY COMMISSION (943)

LICENSEE EVE REPORT (LER) TEXT CONTINUATIO i APPROVED OMS NO. 3150M)04 EXPIRES: 8/31/88 FACILITY NAME (1) DOCKET NUMBER (2) LER NUMBER (5) PACE (3)

SEQUENTIAL AEVISION DONALD C. COOK NUCLEAR PLANT YEAR NVMBBA NVMBBA UNIT 2 p 5 p p p 3 16 88 0 0 1 0 0 0 2 pF0 4 TEXT //P/Ar/ro Specs /4 roFI(rior/ Iroo /R/O/oo/NRC Fo/rri 3//SA'4/ (IT)

Conditions Prior to Occurrence Unit 2 at 80 percent reactor thermal power.

Descri tion of Event On January 6, 1988 at 1310 hours0.0152 days <br />0.364 hours <br />0.00217 weeks <br />4.98455e-4 months <br />, while obtaining a weekly sample from VRS-2500, Unit 2 Auxiliary Building Vent Radiation Monitor (EIIS/IL-MON), it was discovered that the sample valve lineup (EIIS/IL-SMV), to allow continuous monitoring of the Unit 2 Auxiliary Building Vent, was incorrect. The lineup, as found, was drawing air from the 650'uxiliary building elevation not the vent stack as required. (See attached sketch). Review of data from VRS-2500 indicates this condition had existed in all likelihood, since the last time VRS-2500 was sampled on December 30, 1987. At that time, the chemistry technician involved in sampling VRS-2500 did not restore the valving to its normal alignment as required by 2 THP 6020 LAB.135. During the time period (12/30/87 through 1/6/88), when the sample lineup was incorrect for VRS-2500, continuous noble gas monitoring or 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> grab samples as required by Technical Specification 3.3.3.10 Table 3.3-13 Section 3.a was not met. Other than the Auxiliary Building Vent Radiation Monitor, there were no inoperable structures, components, or systems that contributed to this event.

Cause of Event The cause is cognitive personnel error. The valves were not restored to normal alignment after sampling VRS-2500 on December 30, 1987 is not the first occurrence regarding the failure to insure sample valves 'his are in their correct alignment. Past preventive action for LERS 316/86-027-00; 316/86-001-00; 316/83-092-00 consisted of the implementation of a verification program. In the case of VRS-2500, the verification consistedalarms of notifying the control room and remotely verifying that there were no (including a flow alarm) for VRS-2500. This practice insured that there is a sample flow after sampling but does not verify correct sample flow path.

~.

Anal sis of Event ~ 4 r I

~ i This incident is considered y'issed surveillance in that the requirement for continuous noble gas mon'ito'ring in Technical Specification CFR 3.3.3.10 Table 3.3-13 Section A was'."not met and is reportable under 10 50.73

( )(2)(')

During the time between December 30, 1987 and January 6, 1988 no gas decay tank (or other) releases were made which would cause release, via the vent NAC FOAM SBBA *U,S.GPO/1988.0-824 538/455 (943)

NRC Form 388A U.S. NUCLEAR REGULATORY COMMISSION (94)3)

LICENSEE EVE REPORT (LER) TEXT CONTINUATIO APPROVED OMB NO, 3)50&)04 EXPIRES: 8/31/88 FACILITY NAME ul OOCKET NUMBER 12) LER NUMBER (6) PAGE (3)

YEAR SEQUENTIAL IIEVIS ION D. C. COOK NUCLEAR PLANT NUMSER ). IT NUMBER UNIT 2 o s o o o3 16 88 0 0 1 0 0 03 oFO 4 TEXT //mors <<>>os /4/s///sr L rroo arST/Oo>>/I HRC %%drm 3(E(43/ (17l stack, above "normal" routine levels and therefore, we believe this event did not pose a threat to the health and safety of the public.

Corrective Action After discovery of incorrect valve lineup on January 6, 1988, proper flow was restored to VRS-2500 and the valve lineup was verified correct (completed at 1320 hours0.0153 days <br />0.367 hours <br />0.00218 weeks <br />5.0226e-4 months <br />). The technician involved was counselled as to the importance of insuring quality and procedure compliance. As preventive action a change to both 2 THP 6020 LAB.135 and 1 THP 6020 LAB.135 was written to require local independent verification of the proper valve alignment in addition to requesting Control Room personnel to verify the monitor has been returned to proper operational state.

Failed Com onent Identification None Previous Similar Events LER 316/86-027-00; Failure to Verify Sample Flow Path, Due to Procedural Deficiency, Results in a Lack of Continuous Vent Stack Tritium Monitoring.

LER 316/86-001-00; Unit Vent Effluent Tritium LER 316/83-092-00; Sample Valves at Outlet of Boron Injection Tank Left Partially Open.

NRC FORM 3SSA *U.S.GPO:1988-0.824 538/455 (94)3)

NRC Form 388A U.S. NUCLEAR REGULATORY COMMISSION (983)

LICENSEE EVE REPORT (LER) TEXT CONTINUATIO APPROVED OMB NO. 3150-0104 EXPIRES: 8/31/88

~0 1 ~ cs FACILITY NAME ill DOCKET NUMBER l2) LER NUMBER (8) PAGE (3)

SEOI/ENTIAL j~'5:. REVISION D. C. COOK NUCLEAR PLANT YEAR NUMBER '.84 NUMBER UNIT 2 osooo316 8 8 0 0 1 00 04 OF 0 4 TEXT ///Roro <<ooo /4 n /I//ror/ Iroo eo/dR/o/N/NRC FoeR 35849/ (17)

Vent Stack A, VRS-2500 I

I 650'ux. Air-B. VRS-2500 Vent Stack Configuration A reflects the as found condition. Configuration B is the correct by procedure flow path.

/

1

,/

NRC FORM SBBA RU.S.GPO:1988 0 824 538/4SS (94)3)