ML18144A704
| ML18144A704 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 12/28/1976 |
| From: | Florida Power & Light Co |
| To: | Moseley N NRC/IE, NRC/RGN-II |
| References | |
| PRN-LI-76-313 | |
| Download: ML18144A704 (3) | |
Text
P. O. BOX 013100, MIAMI, FL 33101
'qQ FLORIDA POWER & LIGHTCOMPANY December 28, 1976 PRN-LI-76-313 Mr. Norman C. Moseley, Director, Region II Office of Inspection and Enforcement U.
S. Nuclear Regulatory Commission 230 Peachtree
- Street, N. W., Suite 818 Atlanta, Georgia 30303
Dear Mr. Moseley:
REPORTABLE OCCURRENCE 335-76-45 ST.
LUCIE UNIT 1 DATE OF OCCURRENCE:
NOVEMBER 28, 1976 SHUTDOWN COOLING FLOW The attached Licensee Event Report is being submitted in accordance with Technical Specification 6.9 to provide 30-day notification of the subject occurrence.
Very truly yours, D. Schmidt Vice President Power Resources MAS/cpc Attachment cc:
Robert Lowenstein, Esquire Director, Office of Inspection and Enforcement (30)
Director, Office of Management Information and Program Control (3)
8 9 CONTROL BLOCK:
UCENSEE NAME 14 15 UCENSE NUMBER 0
0 0 0 0
(P EASE PAINT ALLREQUIRED INFORMATION)
UCENSE EVENT TYPE TYPE 4
1 1
1 1
~03 26 30 31 32 REPOT REPORT CATEGORY TYPE SOURCE 1 CONi'
~L L
8 57 58 59 60 DOCKET NUMBER 0
5 0 0 3
3 5
l 61 68 69 EVENT OATE l
2 8
74 75 REPORT OATE 80
,EVENT OESCRIPTION 2
Durin lant heatu
, the Low Pressure Safet.
In'ection (LPSI um s were 8 9 3
sto ed when s stem ressure had been raised above 250 sia.
The LPSI 8 9 80 4
um s which are also used for shutdown coolin SDC were sto ed 8 9 5
because the maximum ressure for shutdown coolin s stem o eration is 8 9 6
268 sia.
Transition to the Reactor oolant Pum s
RCP's wa de a
80 80 8 9 SYSTEM CAUSE COOS COOS COMPONENT COOE
~CFAPUMPXX 8 9 10 11 12 17 CAUSE OESCRIPTION T
fi min t ran it'o PAME COMPONENT SUWIJER CCMPONENT MANUFACTUAEA B
5 8
0 47 time imi was x e d N
80 8 9
~
80 on the 6.9 KV buses which revented o erations ersonnel from immediatel 8 9 startin RCP's.
0 erations ersonnel have been instructed on the 80 OTHER STATUS AMOUNT OF ACTIVITY N A RQ3ABLE CONSEQUENCES 8 9 LOSS OR OAMAGE TO FACILITY TYPE OESCRIPTION z
89 10 PUBUCITY 8 9 AOOITIONAL FACTORS 8 9 FACIUTY FO'of ACTIVITY COATENT RELEASEO OF RELEASE
~z
~z 8
9 10 11 PERSONNEL EXPOSURES NUMSER TYPE DESCRIPTION PERSONNEL INJURIES OESCRPTIOh 000 8 9 11 12 METHOO OF OISCOVERY 44 45 46 44 45 N A N A N/A OISCOVERY OESCRIPTION I.OCATION OF RELEASE N A 80 80 80 80 80 80 8 9
~
io
'o an s
D seri tion.
80 8 9 NAME. M. A. Scho man PHONE. 305 552-3779 80
Reportable Occurrence 335-76-45 Licensee Event Report Page Two Event Descri tion (Continued) because the 6.9 KV buses from which they receive power were de-energized.
The 6.9 KV buses were energized and the RCP's were started, but the transition from SDC to RCP operation exceeded the fifteen minute time limit of Technical Specification 3.4.l.
Similar occurrences which involved ex-ceeding the time allowed for transition from SDC to RCP operation were described in Reportable Occurrences 335-76-6, 335-76-40, and 335-76-4l, however, this was the first such occurrence caused by the 6.9 KV buses being de-energized.
(335-76-45).
Cause Descri tion (Continued) importance of ensuring proper initial conditions at the beginning of plant evolutions.