ML18227A430
| ML18227A430 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 06/25/1976 |
| From: | Schmidt A Florida Power & Light Co |
| To: | Moseley N NRC/RGN-II |
| References | |
| PRN-LI-76-164 | |
| Download: ML18227A430 (7) | |
Text
NRC FoRM 195 I2-76I TOI Mr,'Norman C, Moseley FROM:
Florida'Power- & Light Company Miami, Florida A. D, Schmidt U.S. NUCLEAR REGULATORY C SION A
NRC D ISTR I BUT ION Fo R PART 50 DOC KET MATER IAL DOCKET NUMBER 50-251 FILE NUMBER INCIDZFZ REPORT DATE OF DOCUMENT 6/25/76 DATE RECEIVED 7/6/76 KLEVTER OORIGINAL SCOP Y DESCRIPTION ONOTOR IZED
@UNCLASSIFIED PROP INPUT FORM ENCLOSURE NUMBE R OF COP I ES RE CE IVE D No original Ltr.. trans the following:
Licensee Event Report
(
6/12/76 concerning the of the boron in]ection acid storage tank were limit.
RO 50-251/76-5) on boron concentration tank and the "B," Soric below the, tech spec (1-P)
ACKNO EDGED (2-P)
DO NO RL'MOVE PLANT NAME:
Turkey Point 04 NOTE:
IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY
-TO KREGER/J.. COLLINS KgÃCH CHIEF W
CYS FOR ACTION LIC..ASST.:
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FOR ACTION/INFORMATION 7
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FLORIOA PO'AER 5 LIGHT CO>.TRACY
'June 25, 1976 PRN-LI-76-164 Mr.'orman C. Moseley, Director, Region II Office of Inspection and Enforcement
~
U. S. Nuclear Regulatory'ommission 230 Peachtree
- Street, N. Wot Suite 818 Atlanta, Georgia 30303
Dear Mr. Moseley:
REPORTABLE OCCURRENCE 251-76-5'URKEY POINT UNIT 4 DATE OF OCCURRENCE:
JUNE.12, 1976 LOW BORON CONCENTRATION
.The attached Licensee Event. Report is being submitted in
'accordance with Technical Specification 6.9.2 to provide
. prompt notification of the subject occurrence.
Very truly yours,
~ A. D. Schm'idt Vice President Power Resources MAS/cpc Attachment POCKETED NIIIIEI 4ItL )IS>6=,
U:5 ~ NVCIEAR RECIlihTDRT COMMIEE ID'IaII EocIIon v,
cc:.
Jack R.
Newman, Esquire Director, Office of Inspection Director, Office of Management
..Program Control (3) and Enforcement'(40)
Information and
. ~~i@O
. 6'784 HITLPING BUILD FLORIDA
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CONTROL BLOCK:
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'ICENSEE NAME gij Ez'p s
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,7 89
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LICENSE NUMBER 0 00000,'0 (P~ PAINT ALLAEQLIIAEDINFORMATION/
UCENSE EVENT TYPE TYPE 0
1 1
1
~01 25 26 30 31 32 REPORT AEPOAT CATEGORY TYPE'OURCE
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57 58 59 60
~ p EVENT'ESCRIPTION
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OOCKET NUMSEA 68
~ EVENT OATE REPORT OATE 0
6 l 2
7 0
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6 2
5 7
6 69 74 75 80 tha the bo on concentration of the boron 7
8 9 80 IOO~]
in ection tank BIT and the "B" boric acid stora e tank (BAST) were 7
89 toad]
below the Technical Sp'ecification limit of 20,000 ppm.
~
80 This had 7
8 9 7
8 9 l006 Re ortable Occurrence 251-76-4.
80 7
's discussed in 80 C'orrective action was to initiate a 7
8 9 SYSTEM CAUSE CODE COOS COMPONENT Rl L$J~H E
V A L
- 7 8 9 10
.11 12 CAUSE DESCRIPTION Qo g
[ Dilution of the Unit COOE E
X PRME COMPONEs4T SUPPLER 17, 43 COMPONENT MANUFACTURER D
02
.5 44 47 VIOLATE)N 80 4 BIT was caused by inleakage from the RNST via the 7
8 9 toOj9 BIT inlet and outlet isolation valves.
Since the BIT was bein re-60 7
8 9
~10 80 Il A
a s
diluted.
OTHER STATUS A
PROB44IBLE CONSEQUENCES Qs]
7 89 LOSS OR OAMAGE TO FACILITY TYP OESCAPTION z
7, 89 10 PUBLICITY 7
89 7
89 pig 7
8 9
10 12 13 FORM OF ACTIVITY COATENT RELEASED OF AELEASE AMOUNT OF ACTIVITY KG~
Lzl L~J N/A 7
8 9
10 11 PERSONNEL EXPOSURES NUMSEA TYPE OESCRIPTION t"g ~I JgJ Z
7 8 9 11 12 13 PERSONNEL INJURIES NUMSER OESCAIPTION f47 LoaooJ
'7 89 11 12 METHOO OF OLSCOVEAY 45 46 N A N
N A N A OISCOVERY OESCRIPTION N A LOCATION OF RELEASE N/A 80 80 80 80 80 80
= 80
~80 AOOITIONAL FACTORS" Eee' e
- 2. for continuation of Event Descii tion and Cause Description; 7
89 60 7
89
'M. A. Scho man PHONE. 305 552-3779 80 CFO 4A'I ~ E ~ 7
0 REPORTABLE OCCURRENCE 251-76-5 LICENSEE EVENT, REPORT PAGE TWO
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Event. Descri Cion '(cont'inued) shutdown in accordance with Administrative Procedure 103.8 and to commence adding a concentrated boric acid solution to the tanks.
The boron concentration of the tanks, was returned to within specification and normal operation was resumed.
('251-76-5).
Cause Descri tion (continued)
I f
Maintenance was performed on the inlet isolation valves to stop
. the leakage.
Leakage past the outlet isolation valves was stopped by isolating the leakoff line from those, valves.
, Similar cases of BIT dilution have occurred, however, this was the first, occurrence attributable directly to leakage past the isolation valves.
.Also, a situation in which cross dilution occurred between a BIT and a BAST was previously discussed in report 251-75-12.
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