05000263/LER-1997-005, :on 970408,failure to Analyze Diesel Fuel Samples within TS Required Surveillance Interval Was Discovered Due to Lack of Technical Staff Understanding. Diesel Fuel Surveillance Procedure Was Changed
| ML20148B128 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 05/05/1997 |
| From: | Parker T NORTHERN STATES POWER CO. |
| To: | |
| Shared Package | |
| ML20148B122 | List: |
| References | |
| LER-97-005, LER-97-5, NUDOCS 9705120172 | |
| Download: ML20148B128 (4) | |
| Event date: | |
|---|---|
| Report date: | |
| Reporting criterion: | 10 CFR 50.73(a)(7)(iv) 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) |
| 2631997005R00 - NRC Website | |
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F ACiUN NAME (1)
DOCKET NUMBER (2)
PAGE (3)
MONTICELLO NUCLEAR GENERATING PLANT 05000 - 26 3 1 OF 4 TITLE (4)
Feilure to Analyze Diesel Fuel Samples within the Technical Specification Required Surveillance interval l
EVENT DATE (5)
LER NUMBER (6)
REPORT NUMBER (7)
OTHER FACIUTIES INVOLVED (8) g SEQUENTIAL NEVISON F AcluTY NAME DocusT saastEn
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MONTH DAY YEAR YEAR NUMBER NUMBER MONTH DAY YEAR 06000 04 08 97 97 005 00 05 05 97
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LICENSEE CONTACT FOR THIS LER (12)
NAME TELEPHONE NUMBER (include Area Code)
I Tom Parker 612-295-1014 COMPLETE ONE LINE FOR EACH COMPONENT FAILURE DESCRIBED IN THIS REPORT (13) i
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NCR FORM 306 (4-95)
A system engineer discovered that the monthly analysis of the diesel fuel was not being performed within the required time. Samples were taken monthly as required. Samples were then sent off site for analysis. The analysis results were returned to the system engineer regularly, in approximately 3 w:eks. Surveillances are required to be completed within i25% of the surveillance interval specified in the Technical Specifications. No time requirement had been associated with receiving and reviewing the sample analyses. The operability of the emergency diesel generators was never effected by this time delay, as all analyzed samples were acceptable. The surveillance procedure will be changed to specify the review of the required analysis results prior to the surveillance being considered complete.
9705120172 970505 PDR ADOCK 05000263 S
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MONTICELI O NUCLEAR GENERATING 05000 97 005 00 2 of 4 PLANT 263 l
Description
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While operating at 100% power on April 8,1997, a system engineer discovered that the monthly analysis of the diesel fuel was not being performed within the required time.
Technical Specification 4.9.B.3.f states:
Once a month a sample of diesel fuel shall be taken and checked for quality.
Samples were taken monthly as required. Samples were then sent off site (to the NSP Chestnut Service Center in Minneapolis) for analysis. The surveillance was written so that the surveillance was considered complete after the sample was taken, but before the sample was analyzed and the analyses were reviewed. The analysis results were returned to the system engineer regularly in approximately 3 weeks, which was outside 25% of the surveillance interval specified in the Technical Specifications.
This was discovered as a result of an action taken in response to an NRC violation identified in Inspection Report #96009 (SOPI). This action committed to examine all i
surveillance procedures to determine if the procedure could be considered complete before all the required data analysis and engineering evaluations were completed. The surveillance procedure for drawing the diesel fuel sample (#0192) was reviewed. The surveillance was written so that the surveillance was considered complete prior to receiving the analysis results from the off site organization. Since the analysis is required by the Technical Specification and fulfills the purpose of the surveillance, the surveillance should not have been considered complete until the analysis results were reviewed.
Cause
Completion of this surveillance has always been incorrectly associated with taking, not analyzing, the sample every 30 days. No time criteria had been procedurally required for receiving and reviewing the sample analysis results. The cause of this event is a lack of technical staff understanding that the review of the analyses must be completed before the surveillance is considered complete.
lU.S. NUCLEAR REGULATORY COMMISSION APPROVED BY oM3 No. 3150-0104 A
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MONTICELLO NUCLEAR GENERATING 05000 97 005 00 3 of 4 PLANT 263 Analysis of Reportability j
Surveillance tests must be completed within 25% of the surveillance interval specified in the Technical Specifications. Since the diesel fuel surveillance was not completed within 25% of the monthly interval, Technical Specification 4.9.B.3.f was not being met. This is reportable per 10 CFR Part 50, Section 50.73(2)(i)(B) which requires reporting any " condition prohibited by the plant's Technical Specifications".
Safety Sionificance Results of the analyses has been satisfactory. The operability of the emergency diesel generators (Ells System Code: EK) was not affected by the delay in the performance of the analyses. This event had no adverse effect on the health and safety of the public.
Actions
Corrective Actions
i The diesel fuel surveillance procedure will be changed to require completion of the required analyses prior to considering the surveillance complete.
Preventive Actions The existing commitment associated with NRC inspection 96009 to review surveillance procedures will identify any additional surveillances that are being considered complete, prior to completion of all data / analysis.
Training associated with NRC Inspection 96009 has corrected this technical staff lack of understanding.
Failed Component identification - None Similar Events -
LER 85-019
1
.U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB NO. 31504104 N
EXPIRES 5/31/95 ESTIMATED BURDEN PER RESPONSE TO COMPLY WrfH THl3 LICENSEE EVENT REPORT (LER)
E MIr*EscAaoA'EEN EEJh TETNE EMITo"N RECORDS MANAGEMENT E6 RANCH (MNB8 7714),
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NUCLEAR TEXT CONTINUATION aEautArORv couWiSSiON. wASNiNoTON. oC 20sss.oooi. ANo TO THE PAPERWORK REDUCTION PROJECT (3150 0104). OFFICE OF MANAGEMENT AND BUDGET, WASHINGTON, DC 250 F ACOTY NAMEt1)
DOCKET NUMBE R (2)
LER NUMBER (6)
PAGE (3)
YEAR SEQUE.NTIAL REVitilON 1
NUMBFR NUMBEP MONTICELLO NUCLEAR GENERATING 05000 97 005 00 4 of 4
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PLANT 263 I
This LER addressed a diesel fuel sample that was taken and subsequently lost.
The timeliness of obtaining analysis results was not addressed.
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