05000311/LER-1982-024, Forwards LER 82-024/03L-0.Detailed Event Analysis Encl: Difference between revisions

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{{Adams
#REDIRECT [[05000311/LER-1982-024]]
| number = ML20063C367
| issue date = 04/21/1982
| title = Forwards LER 82-024/03L-0.Detailed Event Analysis Encl
| author name = Midura H
| author affiliation = PUBLIC SERVICE ELECTRIC & GAS CO. OF NEW JERSEY
| addressee name = Haynes R
| addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
| docket = 05000311
| license number =
| contact person =
| document report number = NUDOCS 8205040727
| package number = ML20063C369
| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE, UTILITY TO NRC
| page count = 3
}}
{{LER
| Title = Forwards LER 82-024/03L-0.Detailed Event Analysis Encl
| Plant =
| Reporting criterion =
| Power level =
| Mode =
| Docket = 05000311
| LER year = 2082
| LER number = 24
| LER revision =
| Event date =
| Report date =
| ENS =
| abstract =
}}
 
=text=
{{#Wiki_filter:' ' ~
O PSEG Public Service Electric and Gas Company P.O. Box E Hancocks Bridge, New Jersey 08038 Salem Generating Station April 21, 1982 Mr. R. C. Haynes                                                                      , M 19ff Regional Administrator                                                              /            .
4 USNRC                                                                              / ['
        . Region 1                                                                                                      g 631 Park Avenue
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==Dear Mr. Haynes:==
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                                                                                              %                    O L' CENSE NO. DPR-75                                                                        ^
9 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 82-24/03L Pursuant to the requirements of Salem Generating Station Unit No. 2, Technical Specifications, Section 6.9.1.9.b, we are submitting Licensee Event Report for Reportable Occurrence 82-24/03L. This report is required within thirty (30) days of the occurrence.
Sincerely yours, i
p
                                                                  . J. Midura General Manager -
Salem Operations CC:    Distribution i
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8205040727 820421 PDR ADOCK 05000311 S                      PDR t
The Energy People                                                                            g g,t  $/
jd 189 CO'M 11-81
 
Report Numbcr:    82-24/03L Report Date:      04-21-82 Occurrence Date:  03-28-82 Facility:          Salem Generating Station, Unit 2 Public Service Electric & Gas Company Hancocks Bridge, New Jersey    08038 IDENTIFICATION OF OCCURRENCE:
Boric Acid Storage Tanks and Boron Injection Tank -
Concentration Out of Specification.
This report was initiated by Incident Reports 82-064 and 82-065.
CONDITIONS PRIOR TO OCCURRENCE:
Mode 1 - Rx Power 85% - Unit Load 980 MWe.
DESCRIPTION OF OCCURRENCE:
On March 28, 1982, sample results.from Nos. 21 and 22 Boric Acid Storage Tanks (B AST' s) and the Boron Injection Tank (BIT) indi-cated the boric acid concentrations were below the specification limit of 20,000 ppm boron. At 1500 hours, Nos. 21 and 22 BAST's were declared inoperable and Action Statement 3.1.2.6.a was entered.
The BIT was declared inoperable at 1620 hours, and Action Statement 3.5.4.1 was entered.
These occurrences constituted operation in a degraded mode in accordance with Technical Specification 6.9.1.9.b.
DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:
No apparent reason for the decrease in boric acid concentration could be determined. The BAST and BIT results were consistent making it unlikely that the analyses were incorrect. Investi-gation of previous tank sample results showed no downward trend.
All previous batches were accounted for in the logs, and had been sampled with satisfactory results prior to addition.
Sample results of subsequent batches were realistic, indicating no problem with reagents or method. There was no safety injection flow into Unit 2 Reactor Coolant System during this period. All other major water sources adjacent to the boron storage system were borated to greater than 20,000 ppm.
ANALYSIS OF OCCURRENCE:
Technical Specification 3.1.2.6.a requires:
With the boric acid storage system inoperable and being used as one of the required borated water sources, re-store the storage system to operable status within 72 hours, or'be in at least hot standby within the next 6 hours and borated to a shutdown margin equivalent to at least 1%
delta k/k at 200 F.
 
LER 82-24/03L                      ,
    . s Technical Specification 3.5.4.1 requires:
With the BIT inoperable, restore the tank to an operable status within 1 hour, or be in hot standby and boraged to a shutdown margin equivalent to 1% delta k/k at 200 F within the next 6 hours.
In either case, the Technical Specifications require if the inoperable component (s) are not restored to an operable status within the next 7 days, be in hot shutdown within the next 12 hours.
CORRECTIVE ACTION:
Boric acid was added and recirculated. At 1720 hours, March 28, 1982, a sample of the BIT showed 19,950 ppm. Power reduction and preparation for entering Mode 3 were commenced in compliance with Action Statement 3.5.4.1. At 1910 hours, sample results showed the BIT boric acid concentration was within speci#ication. The BIT was declared operable, and Action Statement 3.5.4.1 was terminated. Sample results indicated that the BAST boric acid concentrations were within specification limits at 0043 hours, March 29, 1982. Nos. 21 and 22 BAST's were declared operable, and Action Statement 3.1.2.6.1 was terminated.
FAILURE DATA:
Not Applicable Prepared By    R. Frahm                F            E-f            31
                                                //Gbneral Mandger -
Salem Operations SORC Meeting No. 82-42 t
I l
f I
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