ML19095A770
| ML19095A770 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 02/27/1975 |
| From: | Stallings C Virginia Electric & Power Co (VEPCO) |
| To: | Moseley N NRC/RGN-II |
| References | |
| 441 | |
| Download: ML19095A770 (2) | |
Text
VIRGINIA ELECTRIC AND POWER COMPA RICHMOND, VIRGINIA 23261 February 27, 1975 Mr. Norman C. Moseley, Director Office of Inspection and Enforcement United States Nuclear Regulatory Conrrnission Region II - Suite 818 230 Peachtree Street, Northwest Atlanta, Georgia 30303 Docket Nos. 50-280 License Nos. DPR-32
Dear Mr. Moseley:
Pursuant to Surry Power Station Technical Specification 6.6,B.1, the Virginia Electric and Power Company hereby submits forty (40) copies of Abnormal Occurrence Report No. AO-Sl-75--,05.
The substance of this report has been reviewed by the Station Nuclear Safety and Operating Committee and will be placed on the.agenda for the next meeting of the System Nuclear Safety and Operating Committee.
Enclosures 40 copies of AO-Sl-75-05 cc:
Mr. K.. R. Goller Very truly yours, i/J. )!)/( d7<PLL, :-v~
C. M. Stallings Vice President-Power Supply and Production Operations 2632.
F
. -w1" CONTROL BLOCK:.,
1 LICENSEE NAME
@E]!v!A!slP!sl 1!
7 8 9 14 15 CATEGORY REPORT TYPE.
REPORT SOURCE DOCKET NUMBER EVENT DATE EVENT TYPE I o ! 1 I 31 32 REPORT DATE
@Iii CON'T I I
- I L!J ~ 1015 IO l~lo 121 8 101 1012111417151 1°1 2 12 15 17 15 1 7
8 57 58 59 60
~
68 69 74 75 80 EVENT DESCRIPTION
@lfil !During periodic calibration tests the pressurizer pressure comparator was found to 7
8 9 lo!31 I have drifted out of calibration.
7 8 9 The trip setpoint was 1818 psig instead of 1875 joj41 I psig as required by Technical Specification 3.2.
The comparator was replaced.
7 8 9 1°151 7
8 9 fQTh]
7 8 9 SYSTEM CODE
@El Ir !A I 7
8 9 10 CAUSE CODE w 11 CAUSE DESCRIPTION COMPONENT CODE I I I N I s I Tl R I u I 12 17 PRIME COMPONENT SUPPUER L!J 43 COMPONENT MANUFACTURER IHI O I 1 1 5 1 44 47 VlOLATION l!J 48
~ j Hagan computer systems model 118 signal comparator A56Y 4111082-001 had a component 7
8 9 joj9! l failure causing setpoint to drift.
7 8 9
~
7 8 9 FACILITY STATUS
% POWER OTHER STATUS fil]
LJ I I I 7
8 9
10 12 13 FORM OF ACTIVITY CONTENT rn RELEASED LJ OF RELEASE LJ I AMOUNT OF ACTIVITY 7
8 9
10 11 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION ITeJ I I I LJ 7
8 9 11 12 13 PERS'ONNEL INJURIES NUMBER DESCRIPTION EE I I I I 7
8 9 11 12 OFFSITE CONSEQUENCES
.ETul 7
8 9 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION
~- LJ 7
8 9 10 PUBLICITY E0 7
8 9
. ADDITIONAL FACTORS METHOD OF DISCOVERY DISCOVERY DESCRIPTION I LJ 44 45 46 I
LOCATION OF RELEASE 44 45 I
80 I
80 I
80 80 80 I
80 I
80 80 80 80 80 80 80 80 80
~
7 89~------------------------------------------=!
.BO
[iliJ 7
89 80 E. M. Sweeney, Jr.
771 3748 (8
)
NAME=-------------------- PHONE:
04 GPO 8 81
- e tl7