ML18227A508
| ML18227A508 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 05/13/1977 |
| From: | Schmidt A Florida Power & Light Co |
| To: | Moseley N Office of Nuclear Reactor Regulation |
| References | |
| LER 251-077-02 | |
| Download: ML18227A508 (7) | |
Text
U.S. NUCLEAR REGULATORY COM ON
[I2-76)
NRC DISTRIBUTION FQR PART 50 DOCKET MATERIAL DOCKET NUMBER QO-< S FILE NUMBER INCIDENT REPORT
,TO: Mr. Norman C. Moseley FROM:
FPL Miami, Fla.
33101 A.D.Schmidt DATE OF DOCUMENT 5-13-77 DATg RjfEJPPD ETTE R j5OR IGINAL QCOPV CI NOTOR IZE D NC LASS IF I E D PROP INPUT FORM NUMBER OF COPIES RECEIVED S/c wN Ltr trans the following:
, (lp)
ENCLOSURELic. Event Report 772-2 on 4-15-77 concerning failure ofthe boric acid transfer pump....'.
(2P)
(1 cy encl rec'd)
PLANT NAME:
Turkey Pt Uni.t 4 M.CggQ+Lg@
. Bo NOT RE~oyg DHL 6-24-77 NOZE:
IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J~
COLLINS BRANCH CHIEF:
W 3 CYS FOR ACTION LIC ASST,:
W YS ACRS CYS HORBXNG S NT FOR ACTION/INFORMATION REG FIL DR I,&.E 2
MIPC SCHROEDER/IPPOLITO HOUSTON NOVAK/CHECK GRIMES BUTLER HANAUER TEDESCO/MACCARY EISENHUT BAER SHAO VOLLMER/BURGH KREGER/J COLLINS INTERNALDISTRIBUTION LPDR0 TIC:
N EXTERNALDISTRIBUTION CONTROL NUMBER NRC FORM 195 (2-7B)
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FLORIDAPOWER & LIGHTCOMPANY May 13, P
1977 7-'1'44 '"
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 251-77-2 TURKEY POINT UNIT 4 DATE OF OCCURRENCE:
APRIL 15, 1977 BORIC ACID TRANSFER PUMPS The attached Licensee Event Report is being submitted in accordance with Technical Specification 6.9.2 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) n i
f1'l PEOPLE... SERVING PEOPLE
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. 'ENSEE EVENT REPORT CONTROL UCENSEE NAME 01 F
L T
P S
.7 89 BLOCK:
1 (PLEABE PRINT ALLRMUIRED INFORIVIATION)
UCENSE EVENT LICENSE NUMBER TYPE TYPE 4
0 0
0 0 0
0 0
0 0
4 1
1 1
1
~03 14 15 25 26 30 31 32 REPORT REPORT CATEGORY TYPc SOURCE
~
OOCKET NUMBER I001]OON'T~
L
~L 0
5 0
0 2
7 8
57 58 59 60 61 EVENT DESCRIPTION
~0 2 When both Unit 3 and Unit 4 are o eratin
~ EVENT DATE REPORT OATE 5
1 0
4 1
5 7
7 0
5 1
3 7
7 68 69 74 75 80 Technical S ecification 3.6.c.2 re uires at 7
8 9
, ~80
[ODQ least three o erable boric acid transfer BAT um s.
For a roximatel 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br /> 7
8 9 7
8 9
[oas]
80 ri fro 0
.m.
on A ril 15 to 2:30
.m.
on A ril 17 onl two BAT 80 w
o rab e.
Te hnical S ecification 3.6.d.2 ermits one of the three re uired 7
8 9 80 IE3~
7 8 9 SYSTEM CAUSE COOE COOE COMPONENT COOE
[oo7I ~PC
~E P
U M
P X
X 7
8 9 10 11 12 17 CAUSE DESCRIPTION Qg The o eratin histor of the t e
FRME COMPONENT SUFPUER N
CCMFONENT MANUFACTLRER C
3 0
0 44 47 N
48 um currentl installed shows a hi h incidence of 80 7
8 9
[OD9]
r a
80 7
8 9 Qg thermal insulation of the um motor and 2
thrust imbalance caused b
an external OTHER STATUS AMCUNT OF ACTIVITY NA PROBABLE CONSEQUENCES Q~g 7
89 LOSS OR DAMAGE TO FACILITY TYPE OESCRIPTION
~z 7
89 10 PUBLICITY 7
89 FACXlTY STATUS 9C POWER I011I LgJ
~oo 7
8 9
10 12 13 FORM OF ACTIVITY COATENT RELEASEO OF RELEASE OH L~J Lil 7
8 9
10 11 PERSONNEL EXPOSURES NUMBER TYPE OESCRIPTION Qg ~oo
~z 7
89 11 12 13 PERS'ONNEL INJURIES NUMBER DESCRIPTION Q4] ~0 7
89 11 12 McTHOO OF OISCOVERY 44 45 46 NA NA OLOCOVERY OESCRIPTION NA-LOCATION OF RELEASE NA 80 80 BD 80 80 80 7
89 ADDITIONAL FACTORS
~18, p
for o i ua io of Fve t Des ri tion 7
8 9 e
i io 80 7
89 NAME M. A. Scho man 80 CPO Se'I
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REPORTABLE OCCURRENCE 251-77-2 LICENSEE EVENT REPORT PAGE TWO EVENT DESCRIPTION (Continued)
The sequence of events was as follows:
(1)
At 9:30 p.m., 4/15/77, the 4A and 4B BAT pumps failed to start for normal makeup.
Concentrated boric acid supply was available to Unit 4 via the 3A and 3B BAT pumps.
(2)
At 3:30 a.m., 4/16/77, the 4A BAT pump was test run satisfactorily after preliminary investigation and returned to operable status.
The 4B BAT was isolated for major maintenance.
(3)
At 2:30 a.m., 4/17/77, the 4A BAT pump tripped on thermal overload and was declared inoperable.
(4)
The 4B BAT pump was rebuilt and returned to operable status at 2:30 p.m., 4/17/77.
CAUSE DESCRIPTION (Continued) equalizing line (used for pump thrust balance) becoming blocked by boric acid crystals.
,A design change for installation of a different type pump is currently under review.
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