ML18227A438

From kanterella
Jump to navigation Jump to search
Letter Transmitting Licensee Event Report, Low Level in Refueling Water Storage Tank in Unit 4 Occurred on 2/14/1976 in Accordance with Technical Specification 6.9.2 to Provide Prompt Notification
ML18227A438
Person / Time
Site: Turkey Point  
Issue date: 02/26/1976
From: Schmidt A
Florida Power & Light Co
To: Moseley N
NRC/RGN-II
References
PRN-LI-76-33
Download: ML18227A438 (10)


Text

U.S. NUCLEAR REGULATORY COMI ION

~I-

~a

~NRC FORM 195 I2-70)

NRC DISTRIBUTION FoR PART 50 DOCKET MATERIAL DOCKET I'I UMBER 50-251 FILE NUMBER INCIDENT REPORT TOI N.C. Hoseley FROM:

Flordia Power 8 Light Co.

Miami, Flordia A.D. Schmidt DATE OF DOCUMENT 2-26-76 DATE RECEIVED 3-9-76 OLETTE R I7lIORIGINAL OCOPY O NOTOR IZE D SUNCLASSIFIED PROP INPUT FORM NUMBER OF COPIES RECEIVED DESCRIPTION Ltr. trans the following.......

ENCLOSURE RO ¹ 76-2, on 2-14-76, concerning Low Level in Refueling water storage Tank.;....-

t' Cy. Recieved)

PLANT NAME: Turkey Point ¹ 4 NOTE:

IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J COLLINS SAFETY RANCH CHIEF:

W 3 CYS FOR ACTION ear FOR ACTION/INFORMATION ENVIRO LIC. ASST:

W/

'CYS RS CYS arras ENT TO LA INTERNALDISTRI BUT!ON I&E 2

CHROEDER/IPPOLITO VAK CHECK

>AS EDE CO MACCA IAO LLMER BUNCH FR OL NS R:

iamb, or EXTERNAL DISTRIBUTION CONTROL NUMBER IC 2363 NRC FORM 1BB (2-76)

O.

J

~Af 0

~

~

I l

I:

~

~ ~

Qh 8 C,

y

'I

. BOX 3100 MIAMI,FLORIDA 33101 CZ y

4*y 8

FLORIDA POWER 5 LIGHT COMPANY February 26, 1976 PRN-LI-76-33 I

4 1--

iT il Mr. Norman C. Moseley, Director, Region II Office of Inspection and Enforcement U.

S. Nuclear Regulatory Commission 230 Peachtree

Street, N. W., Suite 818 Atlanta, Georgia 30303

Dear Mr. Moseley:

REPORTABLE OCCURRENCE 251-76-2 TURKEY POINT UNIT 4 DATE OF OCCURRENCE:

FEBRUARY 14, 1976 LOW LEVEL IN REFUELING WATER STORAGE TANK 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. Schmidt Vice President Power Resources MAS/jn Attachment cc:

Jack R.

Newman, Esquire Director, Office of Inspection and Enforcement (40)

Director, Office of Management Information and Program Control (3) 236'ELPING BUILD FLORIDA

~,

~

,4

LIIIlIOBEE EVENT REPORT

. CONTROL BLOCK

1 UCENSEE NAME

@01]

F L

T P

S 4

0 7

89, 14 15 REPORT REPORT CATEGORY TYPE SOURCE

~0100NT~

T 0

5 7

8 57 58 59 60 61 EVENT TYPE UCENSE TYPE 0

4 1

1 1

25 26 30 EVENT OATE 0

2 1

4 7

6 LICENSE NUMBER 0 0 0

0 0

0 0 31 32 DOCKET NUMBER 0 0 2

5 1

REPORT DATE 0

2 2

6 7

6 80 68 69 74 75 (PLEASE PRINT ALLREQUIRED INFORIVIATION)

EVENT DESCRIPTION Qo I Durin a routine eriodic check performed in accordance with Operating Procedure 7

8 9I 0204.2 a s ecial test a e was used to determine the actual water level in the 80 7

89

~04 Refuelin Water Stora e Tank.

The tank was found to contain 316,800 80 allons which 7

8 9 80 S

f a io Concurrent 7

8 9 SYSTEM CAUSE CODE CODE COMPONENT COBE

[ogy] ~Zp B

T N

5 T

R 0

7 8 9 10 11 12 17 CAUSE DESCRIPTION

'~ 6 At the time of the occurrence PRME COMPONENT SUPPLER COMPONENT MANUFACTURER B

0 4

0 N

Y 43 47 48 the control room a

e read 323,000 gallons.

The gage Qp I jwith makeup to the tank,,:a unit shutdown. per Administrative.Procedure 0103.8-was-80 7

8 9 80

$09 is a wide range Baile T

e PM multi-point indicator gage.

The proposed long range 80 7

89 FACIUTY STATUS POWER

~11

~E

~10 0

7 8

9 10 12 13 FOAM OF ACTIVITY COATENT RELEASEO OF RELEASE Q~g z

z 7

8 9

10 11 PERSONNEL EXPOSURES NUMBER TYPE OESCRIPTION

~B ~OO O

Z 7

89 11 12 13 PERSONNEL INJURIES NUMBER DESCRIPTION

[iran] ~oo o

7 89'1 12 PROBABLE CONSEQUENCES METHOD OF OISCOVERY OISCOVERY OESCRIPTION b

Weekly RWST level check 44 45 46 OTHER STATUS NA 80 LOCATION OF RELEASE NA AMOUNT OF ACTIVITY NA 44 45 80 NA 80 NA 80 NA 7

8 9 80

~1 0 corrective action includes the installation of a narrow range gage in the Control 7

8 9 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION t116I z

7 89 10 PUBLICITY 7

89 NA NA 80 80 80 ADDITIONAL FACTORS

~1 8 See followin a

e for continuation of Event Description and Cause Description.

7 89 80 7

89 NAME:

M. A. Scho man PHONE. 305/552-3779 80 GPO 88 I ~ 887

4.

Reportable Occurrence 251-76-2 Licensee Event Report Page Two Event Descri tion continued) initiated.

Approximately one-half hour later, the tank level was within specification.

This is the first Reportable Occurrence related to a non-conservative Refueling Mater Storage Tank level.

(251-76-2).

Cause Descri tion (continued)',

Room as a backup to the wide range

gage, and the installation of an Ashcroft test gage on each RMST as a permanent local backup to the Control Room gages.

If J.ocal gages are installed, a program will be developed to provide adequate periodic calibration.

A design review of the RWST level indicating system is being conducted to evaluate the feasibility of the proposed corrective action.

A supplementary report will be submitted if the actual corrective action is different from the proposed corrective action.

0 C

E I

Turkey Paint PI@at Pebruary I.T 2976 J K'ays:

w;auacmr QBTT 4 RSPOETEBLE ~66&CE NO'53.-7& 2s RZFUEiZM WATER STOBACR '.PK%C 'CONTEKZS BSMQ g

LCO qUABTXZT CAXSVD J.

V.

JJ E

.Taesar E

moore B. @agar P

Tucker P

HerriU.ata D. Q Haa D Q'on.

A. K. Haz (by. telac.

Fo1'Rowing are the pzeliminazy facts related to this reportaMe occurrence=

r On Saturday day shX,ft, 2/14/76 the routine periodic check of Refueling Rater Storage Tank 1evel was performed in accordance with Operating Procedure 0204.2.

Thf.s check consists of connecting a special test gage ta determine the actual tank Level and comparing tM.s vaEva to the contro3. rome indication 30 Prom tha head pressure it vas determined that the actual Ho. 4 MT contents. vere 31&,890'aZlons wMck is he1car the Tech Spec (3'.4.1.a.3.}

LCO value of 320,000 gallons.

At thM tea the control room gaga read 323,000 gallons.

I I

Mhan it was determined that the EST was balan the LCO value (9.30 a.u )

a unit shutdcnar was ixd.tiated par Adminfatrative Procedure OM3.8 and makeup to the ERST was fxd.tiatad concurrent'.

The ERST was within specification and tha Road reduction was texminated at 9:56 a.m. after a 25 HMa raductioa A. revX~ o& records. and dimcusskoa wfth operations personnel indicates makeup water was transferred to No. 4 Spent Fuel Pit from No. 4 KIST on tha Friday 2/13/7S mid shift.

He A

K. Hardin, USHRC~ has been notified of this occur anca by. telephone JKQf,:ha J.

K Ha.

P Rant. 8 x5ntandant Nzclaae

'I I

I I

COQiRV'SSF WAS Ft%SHOX rrrFOR R ORfOh rrrFDR'OUR'PA4>AH'YrrrPOR YOU)

O~ le+

0, J

k<<'

f