ML17238A745: Difference between revisions
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DANCE, VOF REGION 3 COMP(IANCE REGARDING A WIRING ERROR UNCOVERED IN THE LPtI LOGIC, TO .SPRAY.tHr .* .). ',, | DANCE, VOF REGION 3 COMP(IANCE REGARDING A WIRING ERROR UNCOVERED IN THE LPtI LOGIC, TO .SPRAY.tHr .* .). ',, | ||
CONTAINMENT UNDER ACCODENT CONDITIONS. | CONTAINMENT UNDER ACCODENT CONDITIONS. | ||
"THE WIRING ERROR WAS-DISCOVERED.~T 15:00 HRS. ON 3/7/7~ 'WHILE .CONDUCT! | "THE WIRING ERROR WAS-DISCOVERED.~T 15:00 HRS. ON 3/7/7~ 'WHILE .CONDUCT! | ||
NG A 'MONTHLY SURVEILLANCE TEST. T~E ERROR WOULD NOT HAVE BEEN NOTED EXCEPT THAT *-AT THE TIME OF THE SURVEILLANCE A LPCI SYSTEM LOW-FLOW .SWITCH WJSI.,,,,... | NG A 'MONTHLY SURVEILLANCE TEST. T~E ERROR WOULD NOT HAVE BEEN NOTED EXCEPT THAT *-AT THE TIME OF THE SURVEILLANCE A LPCI SYSTEM LOW-FLOW .SWITCH WJSI.,,,,... | ||
| Line 30: | Line 29: | ||
*1NITIALL~ REVIEWED THE PROOLEM IT ~AS FELT TO BE A 30-DAY NOTIFICATION BECAUSE THE LPdI SUB-SYSTEM WAS ALWAYS OPERA~LE. TH EFFECT OF THIS WIRING ERROR WAS ONLY TO PROHIBIT PERMISSIVE 1 TO SPRAY THE DRY WELL WITH GREATER THAN 2/3RDSr CORE HEIGHTH. THIS FUNCTION IN SPITE OF TH WIRING ERROR COULD HAVE BEEN PERF-OMED BNEX . , ._ . | *1NITIALL~ REVIEWED THE PROOLEM IT ~AS FELT TO BE A 30-DAY NOTIFICATION BECAUSE THE LPdI SUB-SYSTEM WAS ALWAYS OPERA~LE. TH EFFECT OF THIS WIRING ERROR WAS ONLY TO PROHIBIT PERMISSIVE 1 TO SPRAY THE DRY WELL WITH GREATER THAN 2/3RDSr CORE HEIGHTH. THIS FUNCTION IN SPITE OF TH WIRING ERROR COULD HAVE BEEN PERF-OMED BNEX . , ._ . | ||
BMN~~Bl$S $WITCH . | BMN~~Bl$S $WITCH . | ||
W P ~ORDEN PLATYCPP HRS OF REGION 3 RPT ON NOT VOF. LPCI 15:00 ~/7/72 LPCI 3/8/72. 30 LPCI 2/3RDS '*; , | W P ~ORDEN PLATYCPP HRS OF REGION 3 RPT ON NOT VOF. LPCI 15:00 ~/7/72 LPCI 3/8/72. 30 LPCI 2/3RDS '*; , | ||
231A EST | 231A EST | ||
~ | ~ | ||
. :r> | . :r> | ||
| Line 41: | Line 38: | ||
:t> | :t> | ||
~ | ~ | ||
~ | ~ | ||
-*. -4 S2'D:;vo | -*. -4 S2'D:;vo | ||
::on-1 ::t ;:o f"-Oo USAEC HQS GnJN nr.= | ::on-1 ::t ;:o f"-Oo USAEC HQS GnJN nr.= | ||
oi-1"'1 :E: . fT'I | oi-1"'1 :E: . fT'I | ||
("") .,, | ("") .,, | ||
:Cl:* :z | :Cl:* :z | ||
| Line 62: | Line 57: | ||
0 | 0 | ||
..q-00 | ..q-00 | ||
*~ | *~ | ||
* ..;;!' .. | * ..;;!' .. | ||
-*~"~- ( | -*~"~- ( | ||
**~. | **~. | ||
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r ........... . | r ........... . | ||
*-*t' | *-*t' | ||
~,,,J | ~,,,J | ||
.>.~ | .>.~ | ||
'*...,;; '~ ~}} | '*...,;; '~ ~}} | ||
Revision as of 12:03, 4 February 2020
| ML17238A745 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 03/13/1972 |
| From: | Worden W Commonwealth Edison Co |
| To: | Morris P US Atomic Energy Commission (AEC) |
| References | |
| Download: ML17238A745 (2) | |
Text
MSG.NR 330 TLXA290 PC209
- 50-249 Q NNC447 CCH 073NN130447>PD WU JOL 0742P EST03/13/72 ZCZC 2*NL PD TDJL MORRIS ILL 13 DR PETER A MORRIS DIRECTOR DIVN ON REACTOR LICENSING US ATOMIC ENERGY COMM WASHDC 20545 BT .
DPR-25 DRESDEN NUCLEAR POWER STA~ION UNIT 3 .
THIS WILL CONFIRM CONVERSATION AT 16:00 HRS. THIS DATE WITH H.
DANCE, VOF REGION 3 COMP(IANCE REGARDING A WIRING ERROR UNCOVERED IN THE LPtI LOGIC, TO .SPRAY.tHr .* .). ',,
CONTAINMENT UNDER ACCODENT CONDITIONS.
"THE WIRING ERROR WAS-DISCOVERED.~T 15:00 HRS. ON 3/7/7~ 'WHILE .CONDUCT!
NG A 'MONTHLY SURVEILLANCE TEST. T~E ERROR WOULD NOT HAVE BEEN NOTED EXCEPT THAT *-AT THE TIME OF THE SURVEILLANCE A LPCI SYSTEM LOW-FLOW .SWITCH WJSI.,,,,...
ALSO* OUT OF CALIBRATION.-* THIS SET-UP A CONDITION
'DIFFERENT THAT THAT NORMALLY FOUND DURING TH SURVEILLANCE TEST.
THE WIRING ERROR WAS CORRECTED ON 3/8/72. -
THIS INCIDENT WAS* NOT REPORTED SOONER BECAUSE WHEN THE STATION
- 1NITIALL~ REVIEWED THE PROOLEM IT ~AS FELT TO BE A 30-DAY NOTIFICATION BECAUSE THE LPdI SUB-SYSTEM WAS ALWAYS OPERA~LE. TH EFFECT OF THIS WIRING ERROR WAS ONLY TO PROHIBIT PERMISSIVE 1 TO SPRAY THE DRY WELL WITH GREATER THAN 2/3RDSr CORE HEIGHTH. THIS FUNCTION IN SPITE OF TH WIRING ERROR COULD HAVE BEEN PERF-OMED BNEX . , ._ .
BMN~~Bl$S $WITCH .
W P ~ORDEN PLATYCPP HRS OF REGION 3 RPT ON NOT VOF. LPCI 15:00 ~/7/72 LPCI 3/8/72. 30 LPCI 2/3RDS '*; ,
231A EST
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