ML19308D434
| ML19308D434 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 08/02/1977 |
| From: | Stewart W FLORIDA POWER CORP. |
| To: | |
| Shared Package | |
| ML19308D407 | List: |
| References | |
| NUDOCS 8002280740 | |
| Download: ML19308D434 (2) | |
Text
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S Auf UCENSE NUMSEA P
TYPE l FlL'l ClR lP l3 l l0 l0 l-l0 l 0 l 0 l 0 l 0 l-l 0 l 0 l l 4 l1 l1 l1 l 1l l0l3l S9 14 15 25 26 30 31 32 TN ScN EVENT OAfE REPCRT OATE CATECCAY COCxET NUMBEA O 1 CCN'T l _ l _ l W W lo l5 lcl-l0 lq l0 l2 l l0 l7 l0 l9 l7 l7l l0 l8 l0 l2 l7 l-7 8 57 58 59 60 61 68 69 74 75 i
EVENT DESCRIPTICN gg [In mode 1 (power operation) on 9 July 1977 and 10 July 1977 preparing to add boric acid 7 89 E
g l co the makeup tank, both chemical addition pumps' 3A and 'B were found to be inoperable 7 89 L
gg l contrary to Technical Specification 3.1.2.2.
Redundancy was maintained with the HPI 7 89 E
Q l pumps and the BWST. Second occurrence of this event, refer LER 77-51 Both pumps were 7 09 (LER 77-77)
L os f restored operable by venting.
7 89 L
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CCOE COMPONENT COCE A
R VIOLATON lRlBl.]
lP l Ul Ml Pl Xl Xl lNl l Cl 3 l 0 l 0 l g
o 7 89 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION
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Oe l The pumps were believed to have been airoound. Vent valves were installed on each pump 7 89 E
o9 l to preclude recurrence. Event has not recurred since.
7 89 6
I FACUTY METHoO oF STATUS
% POWER QTHER STATUS CISCOVEAY OtSCOVERY DESCA@TCN y
[ 1l 0l 0l l NA l
l Al l
NA 78 9
10 12 13 44 45 46 E:
ACTMTV CCATENT RELEASEO OF RELEASE l AMOUNT CF ACTMTV LCCATICN OF RELEASE l Zl NA l
l NA 12 lZ l 7 8 9
10 11 44 45 6.
PERSONNEL EXPOSURES NUMBER TYPE CESCRIPTON M l0 l 0l 0l
(,Z_j l
NA 7 89 11 12 13 E.
PERSONNEL INJUAiES NUMBER DESCRPTON l
l3g l0 l 0l 0l l
NA 7 89 11 12 6:
OFFSITE CONSEQUENCES 15 l NA 7 89 0;
LOSS OR DAMAGE TO FACIUTY TYPE DESCA'PTCN dl 1
NA 7 89 10 LL PUBL!C:TY 17 l NA 7 89 UC gg290 M O ADDITIONAL FACTCRS v' 8 9 ut i9 l See Attached Supplementary Information l
7 89 ut.
W. P. Stewart NAME:
pyong: (813) 866-4159 GPO ent GC'
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SUPPLEMENTARY INFORMATION
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Report No.:
50-302/77-77 2.
Facility:
Crystal River Unit #3 3.
Report Date:
2 August 1977 4.
Occurrence Date:
9-10 July 1977 5.
Identification of Ce.urrence:
Cheuical addition pumps CAP-3A and 3B inoperable contrary to Technical Specifications 3.1.2.2.
6.
Conditions Prior to occurrence:
Mode 1 power operation.
7.
Description of Occurrence:
At 0810 on 9 July 1977 and 0815,10 July 1977 preparing to add boric acid to the nakeup tank, chemical addition pumps 3A or 3B would not deliver boric acid to the tank. The pumps were determined to be airbound and were vented on each occurrence, restoring operability.
8.
Designation of Apparent Cause:
The system was thoroughly checked and no immediate cause for the pumps being airbound was iound.
9.
Analysis of Occurrence:
This event had no safety significance as the high pressure injection pumps and the borated water storage tank were available and operable.
10.
Corrective Action:
Vent valves were installed on each pump and appear to have been effective in precluding recurrence as the event has not repeated.
11.
Failure Data:
These two occasions constituted the second occurrence of this event. Previous occurrence reported as LER 77-53.
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