ML18110A880
| ML18110A880 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 06/16/1977 |
| From: | Schmidt A Florida Power & Light Co |
| To: | Moseley N NRC/IE, NRC/RGN-II |
| References | |
| LER 1977-335-26 | |
| Download: ML18110A880 (7) | |
Text
Nh5 RM 195 (2-78 f U.S. NUCLEAR REGULATORY CO
.~ATION DOCKET NUMBER So-TO:
~ g. MOS ELEY FROM: FLORDIA POWER
& LIGHT CO MIAMI, FLRODIA A.D. SCHMIDT NPC DISTRIBUTION FDR PART 50 DOCKET MATERIAL 6/16/77 DATE RECEIVED 7/ll/77 FILE NUMBE R INCIDENT REPORT DATE OF DOCUMENT ETTE R RIG INAL QCOPV 0 NOTOR I2 E D
~C LASS IFIE 0 PROP INPUT FORM NUMBER OF COPIES RECEIVED l
S I'Qm~M DESCRIPTION LICENSEE EVENT REPORT FOR R.0.8 77-26, ON 5/16/77 CONCERNING A SYSTEM UNDERVOLTAGE CO OCCURRING WITH THE SUBSEQUENT LOSS OF ALL FOUR REACTOR COOLANT PUMPS (RCP'S)
ENCLOSURE ITION (1P
& 2P) ga NQT REMOVE PLANT NAME:
ST. LUCIE i/
1
.SAB ACKNOWLEDGED NOTE:
IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J, COLLINS BRANCH CHIEF:
W 3 CYS FOR ACTION LIC ASST0' CYS ACRS CYSUKLDXHG S NT FOR ACTION/INFORMATION NRC PDR I & E 2
MIPC SCHROEDER/IPPOLITO HOUSTON NOVAK/CHECK GRIMES INTERNALD ISTRIBUTION BUTLER HANAUER TEDESCO/MACCARY EISENHUT BAER SHAO VOLLMER/BURGH KREGER/J ~ COLLINS LPDR:
TIC:
N EXTERNALDISTRIBUTION CONTROL NUMBER 77 1 93O4' 0
NRC FORM 19B {2.76)
. O. BOX 013100, MIAMI, FL 33101 Q~Ihi i CZ FLORIDAPOWER 5 LIGHTCOMPANY June 16, 1977 PRN-LI-77-188 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 igpgIItgpIII Dppkpt FIla
Dear Mr. Moseley:
REPORTABLE OCCURRENCE 335-77-26 ST.
LUCIE UNIT 1 DATE OF OCCURRENCE:
MAY 16, 1977 OFF-SITE POWER 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, A. 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) 771930410 PEOPLE... SERVING PEOPLE
~i 1
CONTROL 8LOCK:
lCENSEE EVENT REPORT (PL -
SE PRINT ALLREQUIRED INFORIItIATIDN)
IUCENSEE NAME 01 F
iL S
L S
1 0
- 7 89 14 15 LCENSE TYPE 1
1 1
25 26 UCENSE NUMBER 0
0 0
0 0
0 0
0 EVENT TYPE
~o 30 31 32 REPORT REPORT CATEGORY TYPE SOURCE
~o 1 CON'T~
L L
7 8
57 58 59 60 EVENT OESCRIPTION
~
DOCKET NUMBER EVENT DATE REPORT DATE 0
5 0 0 3
3 5
0 5
1 6
7 7
0 6
1 6
7 7
61 68 69 74 75 80 in man a
ri due to i di rb es a
7 89
~0 3 s stem undervolta e condition occurred with the subse uent loss of all four reactor 7
89 80 Qp41 7
89
[oasj 7
8 9 tOOI 7
8 9 SYSTEM CAUSE CODE CODE COMPONENT CODE
[oczI ~zz
~c z
z z
z z
z 7
8 9 10 11 12 17 CAUSE OESCRIPTION Loss of normal RCS flow was caused 0
a d
FAME COMPONENT SUPPUER COMPONENT MANUFACTURER Z
9 9
9 er ff-N 48 b
a loss of off-site ower'oss of off-site ower 80 METHOD OF DISCOVERY A
44 45 46 44 45 NA NA 7
8 9 Qg was associated with a FP&L rid disturbance.
7 8 9
[iioj 7
89 FACIUTY STATUS 4C POWER OTHER STATUS Log Loco oo lI NA 7
8 9
10 12 13 FORM OF ACTIVITY COATENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY G~H LzJ LzJ NA 7
8 9
10 11 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION
~>> ~oo z
7 8 9 11 12 13 PERSONNEL INJURIES NUMBER DESCRIPTION
~4 ~oo 7
89 11 12 DISCOVERY DESCRIPTION NA LOCATION OF RELEASE NA 80 80 80 80 80 80 PROBABLE CONSEQUENCES EZ I
NA 7
8 9 LOSS OR OAMAGE TO FACILITY TYPE DESCRIPTION
~L Generation ca acit interru ted durin loss of off-site ower.
7 89 10 PUSLICITY Q1 7 Media covera e and FPL ress release on Ma 16 1977.
7 89 AOOITIONAL FACTORS Q~ I See a
e two for continuation of Event Descri tion.
7 89 80
~80 80 7
89 NAME. M. A. Scho man PRONE.
305 552-3802 CPO 44l 4 44Ti
c r'+vc-
RRPORTABL'E OCCURRENCE 335-77-26 LICENSEE EVENT REPORT PAGE TWO Event Descri tion (Continued)
- lost, and a natural circulation RCS cooldown re-commenced.
Approximately 1 to 1-1/2 hours later, off-site power was restored, the RCP's were re-started, and a
reactor heatup commenced.
The plant was restored to a normal configuration within'he time limits specified by the PSL Technical Specifications.
This was the first occurrence of this type associated with a grid disturbance, and is being reported under PSL Technical Specifications 3.4.1 and 3.8.1.1.
(335-77-26)
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