ML20052F879
| ML20052F879 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 03/29/1982 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| RO-2-82-08-01P, RO-2-82-8-1P, NUDOCS 8205140081 | |
| Download: ML20052F879 (2) | |
Text
i.
rmaxraoncrv Certified By b N.
T f
/gn FBILADELPHIA ELECTRIC COMPANY
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Peach Botton Atomic Power Station 1.D. 1, Delta, Pennsylvania l
17314 March 29,1982 Mr. R. C. Baynes, Director Negion I office of Inspection and Enforcement U.S. Nuclear Begulatory Commission 631 Park Avenne King of Prussia, PA 19404 SUBJBCT: REPORTABLE OCCURRENCE - PROMPT NOTIFICATION i
i Confirming S. R. Roberts conversation with Mr. Blough, Region I, I
United States Nuclear Regulatory Commission on 3,/28/82, i
Reference:
Docket No. 50-277/278 Peach Bottom Units 2 and 3 Technical Specification
Reference:
3.9.A.2 and'3.9.B Report No.: 2-81-08/IP
'fR Occurrence Date: 3/28/82
, Identification of Occurrence:
i Diesel fuel oil storage tank inventory less than 104,0C0 gallons.
Conditions Prior to Occurrence:
Unit 2 shutdown for refueling / maintenance outage. Unit 3 operati:
at full power.
Apparent Cause of Occurrence:
Unusual usage of diesel fuel oil by the auxiliary boilers.
Still under investigation.
Analysis of Occurrence:
During the period that the fuel oil inventory was below 104,000 gallons, both off-site power sources were available and all four diesels were operable. Surveillance testing of ECCS system and diesel generators were performed in anticipation of a planned maintenance outage of the E-4 diesel generator scheduled for midnight 3/28/82. Diesel fuel oil storage tanks inventory was below 104,000 gallons for a maximum of 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. Minimum invento) reached in the diesel generator fuel oil storage tanks was approx:
mately 101,000 gallons. During this 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> period, additional
' diesel fuel was available on site in the Unit I diesel fuel oil storage tank (12,000 gallons). 21s oil was later analyzed and found to be acceptable. Eighteen thousand gallons of diesel BdON* *
- MN[6 e205140081 DR ADOCK 05000 ff#p
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l was recognized.
Based on the minor discrepancy between required and actual inventory, the additional available inventory on site and the prompt delivery of diesel fuel, safety significance is considered minimal.
Corrective Action:
During the seekend of March 27, 1982, difficulties with the auxiliary boilers resulted in operating one auxiliary boiler on 42 diesel fuel instead of 86 fuel oil.
Diesel storage tank inventory therefore decreased more rapidly than anticipated.
At 5:00 AM on March 28,1982, this high consumption was recognised, Steps were innediately taken to obtain additional oil deliveries.
These deliveries (approximately 18,000 gallons) arrived on site at.approximately 2:00 PM on March 28,1982.
By 11:30 AM steps were taken to transfer the auxiliary boiler fuel oil' supply to 96 oil thereby stopping the conquaption of l
diesel fuel, Oil delivered at 2:00 PM was analyzed and placed in storage tanks by 5:30 PM restoring inventory to well above the 104,000 gallon minimum requirements.
Very truly yours, NNY N. T. Ullrich Station Superintendent NTU:llh l
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