ML18110A887
| ML18110A887 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 04/29/1977 |
| From: | Schmidt A Florida Power & Light Co |
| To: | Moseley N NRC/IE, NRC/RGN-II |
| References | |
| LER 1977-335-24 | |
| Download: ML18110A887 (4) | |
Text
P. 0, BOX 013100, MIAMI, FL 33101 FLORIDAPOWER 8 LIGHT COMPANY April 29, 1977 PRN-LI-77-128 Mr. Norman C. Moseley, Director, Region II Office of Inspection and Enforcement U.
S. Nuclear Regulatory Commission 230 Peachtree
- Street, N. W., Suite 1217 Atlanta, Georgia 30303
Dear Mr. Moseley:
REPORTABLE OCCURRENCE 335-77-24 ST.
LUCIE UNIT 1 DATE OF OCCURRENCE:
APRIL 15, 1977 TECHNICAL SPECIFICATION 3.1.3.4 The attached Licensee Event Report is being submitted in accordance with Technical Specification 6.9 to provide prompt notification of the subject occurrence.
Very truly yours, A. D. Schmidt Vice President Power Resources MAS/cpc Attachment cc:
Robert Lowenstein, Esquire Director, Office of Inspection and Enforcement (40)
Director, Office of Management Information and Program Control (3)
I 0
CONTROL 8LOCK:
UCENSEE I
NAME F
L S
L S
1 0
89 14 15 LCENSE NUMBER 0 0 0
0 0
0 0 0
25
/PL E PAINT ALLREQUIRED INFORMATION]
LCENSE EVENT TYPE TYPE 4
1 1
1 1
~01 26 30 31 32 REPORT REPORT CATEGORY TYPE SOURCE 1 CONT~,
T
~L 8
57 58 59 60 EVENT DESCRIPTION 0
ven REPCRi DATE 0
4 2
9 7
7 61 68 69 J
74 75 80 OOCIIET NUMBER EVENT'ATE 0
5 0 0 3
3 5
0 4
1 5
7 7
8 9 80 conservative.
The Specification re uires a
CEA dro time of less than or 8 9 80 e ual to 3.3 seconds however the value used in the final accident anal is 8 9 80 was 3.0 seconds.
This has had no safet si nificance because the measure 8 9 60 drop times have all been well below 3.0 seconds (about 2.4 seconds max.).
8 9 PRME SYSTEM CAUScr" COMPONENT CQQE CODE CQMPQNENT COOK RPPUGl E
~E z
z z
z z
Lzf 8 9 10 11 12 17 43 CAUSE DESCRIPTION e
n view of the St. Lucie Unit C M?CNENT h4AiIUFACIUAER Z
9 9
9 47 1 Technical S ecifications showed 80 8 9 80 that the current CEA dro time s ecification is nonconservative with 8 9 res ect to the accident anal sis.
The correct limit of 3.0 seconds has OTHER STATUS QQ~LE CONSEQUENCES 9
LOSS OR DAMAGE TO FACILITY E
DESCRIPTION
~z 9
10 PUBLICITY 89 FACIUTY STATUS POWER E
~lp O
NA 9
10 12 13 FOAM OF ACTIVITY CONTENT RELcKASEO OF RELcASE AMOUNT CF ACTIVITY
~z
~z NA 9
10 11 PERSONNEL EXPOSURES NUMBER TYPc OESCRI?T.
N bd
@Lan Lil PERSONNEL INJURiES NUMBER OESCRI?TION hie~
METHOD OF DISCOVERY OIS QVERY OESCIh?TION d
Notified b NSSS Vendor 44 45 46 LOCATION OF RELEASE NA 44 45 NA NA NA NA 80 80 80 80 80 80
~80 ADDITIONAL FACTORS 4
f continuation of Event Descri tion and Cause Descri tion.
80
REPORTABLE OCCURRENCE 335-77-24 LICENSEE EVENT REPORT PAGE TWO Event Descri tion (Continued)
'This was the first reportable occurrence at St. Lucie Unit 1
involving a nonconservative specification on CEA drop time.
(335-77-24)
Cause Descri tion (Continued) been instituted administratively.
A proposed Technical Specifica-tion amendment will be submitted to the NRC to request a formal change correcting Specification 3.1.3.4.
4
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