ML19310A459: Difference between revisions
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
||
| Line 54: | Line 54: | ||
/2/0/ /N/ (44) / NA ///////////// | /2/0/ /N/ (44) / NA ///////////// | ||
NAME OF PREPARER W. R. CARTWRIGHT PHONE (703) 894 5151 _ | NAME OF PREPARER W. R. CARTWRIGHT PHONE (703) 894 5151 _ | ||
p -_ | p -_ | ||
| Line 68: | Line 66: | ||
Scheduled Corrective Action The failed RTD will be removed from the system during the next cold shutdown (Mode 5 condition) and repaired or replaced as required. | Scheduled Corrective Action The failed RTD will be removed from the system during the next cold shutdown (Mode 5 condition) and repaired or replaced as required. | ||
Actions Taken to Prevent Recurrence No further actions required at this time. | Actions Taken to Prevent Recurrence No further actions required at this time. | ||
L l | L l | ||
E | E | ||
-}} | -}} | ||
Revision as of 09:32, 1 February 2020
| ML19310A459 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 06/11/1980 |
| From: | Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML19310A457 | List: |
| References | |
| LER-80-007-03L-02, LER-80-7-3L-2, NUDOCS 8006170587 | |
| Download: ML19310A459 (2) | |
Text
m U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK / / / / / / / (1) (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)
/0/1/ /V/A/N/A/S/1/ (2) /0/0/-/0/0/0/0/0/-/0/0/ (3) /4/1/1/1/1 (4) / / / (5)
LICENSEE CODE LICENSE NUMBER LICENSE TYPE CAT
! /L/ (6) /0/5/0/0/0/3/3/9/ (7) /0/5/2/1/8/0/ (8) /o/6/1/1/8/o (9)
UR DOCKET NUMBER EVENT DATE REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES (10)
/0/2/ / During Mode 3 operation, a channel in the Tave Protection Loop 2 failed in /
/0/3/ / the high direction. The failed channel (TE-2432D) was placed in the trip /
/0/4/ / mode. Redundant channels remained operable, therefore the. health and safety /
/0/5/ / of the general public were not affected. This item is reportable pursuant /
[0/6/ / to T.S. 6.9.1.9.b. /
/0/7/_ / /
/0/8/ / /
SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE
/0/9/ /I/A/ (11) /E/ (12) /X/ (13) /I/N/S/T/R/U/ (14) LE/ (15) g/ (16)
SEQUENTIAL OCCURRENCE REPORT REVISION LER/R0 EVENT YEAR REPORT NO. CODE TYPE NO.
(17) REPORT NUMBER /8/0/ /-/ /0/0/7/ L\/ /0/3/ /L/ /-/ /_0/
ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRD-4 PRIME COMP. COMPONENT TAKEN ACTION ON PLANT METHOD HOURS SUBMITTED FORM SUB. SUPPLIER MANUFACTURER
/C/ (18) /D/ (19) /Z/ (20) /Z/ (21) /0/0/0/0/ (22) g/ (23) /N/ (24) /N/ (25) /R/3/6/9/ (2G CAUSE DESCRIPTION AND CORRECTIVE ACTIONS (27)
/1/0/ / The cause of the failure is not known at this time. The failed RTD was /
/1/1/ / removed from service and an installed spare (TE-2432C) was placed in /
/1/2/ / service. A Maintenance Request was submitted for the removal and /
/1/3/ / examination of the failed RTD during the next Mode 5 unit operating /
/1/4/ / condition. /
FACILITY METHOD OF STATUS % POWER OTHER STATUS DISCOVERY DESCRIPTION (32)
/1/5/ /C/ (28) /0/0/0/ (29) / NA / (30) DISCOVERY
/A/ (31) / OPERATOR OBSERVATION /
ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY (35) LOCATION OF RELEASE (36)
/1/6/ /Z/ (33) /Z/ (34) / NA / / NA /
PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION (39)
/1/7/ /0/0/0/ (37) /Z/ (38) / NA /
PERSONNEL INJURIES NUMBER DESCRIPTION (41)
/1/8/ /0/0/0/ (40) / NA /
LOSS OF OR TYPE DAMAGE TO FACILITY (43)
DESCRIPTION
/1/9/ /Z/ (42) / NA / l ISSUE ESCRIPTION (45) 0 NRC USE ONLY
/2/0/ /N/ (44) / NA /////////////
NAME OF PREPARER W. R. CARTWRIGHT PHONE (703) 894 5151 _
p -_
e s -
Virginia Electric and Power Company North Anna Power Station, Unit #2
Attachment:
Page 1 of 1 Docket No. 50-339 Report No. LER 80-007/03L-0 Description of Event On May 21, 1980 during Mode 3 condition, the operations personnel noticed that the Tave Protection Channel Indicator (TE 2432D) failed high. The protection channel was placed in the trip mode. This item is reportable pursuant to T.S. 6.9.1.9.b.
Probable Consequences of Occurrence The consequences of this event were limited because the affected cnannel was placed in the tripped condition and the remaining redundant channels were available and functioning properly. As a result, the health and safety of the public were not affected.
Cause of Event The cause of this event is not known of this time. The failure will be determined when the RTD is removed during the next Mode 5 condition.
Immediate Corrective Action The failed RTD was disconnected from the circuit and an installed spare was connected, tested and placed in service.
Scheduled Corrective Action The failed RTD will be removed from the system during the next cold shutdown (Mode 5 condition) and repaired or replaced as required.
Actions Taken to Prevent Recurrence No further actions required at this time.
L l
E
-