ML19260D559: Difference between revisions
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
||
Line 33: | Line 33: | ||
34 l0 0 l0 3/ 40 l l Ylg 41 l Nlg lZ Q lZlZl lZg 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h | 34 l0 0 l0 3/ 40 l l Ylg 41 l Nlg lZ Q lZlZl lZg 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h | ||
] i o l The cause of the event was attributed to personnel error in that someone apparently l i i l placed the fiberglass in the damper just to block a cold draft. The fiberglass was l | ] i o l The cause of the event was attributed to personnel error in that someone apparently l i i l placed the fiberglass in the damper just to block a cold draft. The fiberglass was l | ||
[ i ; 7 g l immediately removed. No specific group or individual could be singled out for blame, l | [ i ; 7 g l immediately removed. No specific group or individual could be singled out for blame, l | ||
, 3 ltherefore, a memo was distributed to all station personnel, security, and project l | , 3 ltherefore, a memo was distributed to all station personnel, security, and project l | ||
~ [i ja i jmanagement to warn against further blockage. l 7 8 9 80 STA 5 *.PCWER OTHER STATUS is O RY QlSCOVERY DESCRIPTION | ~ [i ja i jmanagement to warn against further blockage. l 7 8 9 80 STA 5 *.PCWER OTHER STATUS is O RY QlSCOVERY DESCRIPTION | ||
~ M Wh !1 l 0 l 0 lhl NA l l B l@l coutument operator on rounds l ACTIVl1 V CO TENT RELEASED CF PELEASE AVOUNT OF ACTIVITY LOCATION Oc RELEASE i li c I bJ @ LzJ@ Na I i N^ l 7 8 3 10 ti 44 45 80 PERSONNEL E XPO^.URES NU'/3ER TVPE DESCRIPTION ' | ~ M Wh !1 l 0 l 0 lhl NA l l B l@l coutument operator on rounds l ACTIVl1 V CO TENT RELEASED CF PELEASE AVOUNT OF ACTIVITY LOCATION Oc RELEASE i li c I bJ @ LzJ@ Na I i N^ l 7 8 3 10 ti 44 45 80 PERSONNEL E XPO^.URES NU'/3ER TVPE DESCRIPTION ' | ||
1 LLDJ ' ' | 1 LLDJ ' ' | ||
l 01 of ol@l | l 01 of ol@l zl@l '' | ||
NA l | |||
zl@l '' | |||
NA | |||
, tRSONNii.'imuLS . | , tRSONNii.'imuLS . | ||
n4 3 ,co | n4 3 ,co NevsE R oESCaiPfiONh - | ||
NevsE R oESCaiPfiONh - | |||
V | V | ||
-_ E I8 of o ol@l NA I 7 9 11 12 80 LOSS OF OR OAV AGE To FACILITY 43 TYPE DESCniP'80N v | |||
-_ E I8 of o ol@l | * 110 l 9 M 8 9 10 60 D | ||
* t2 o isguffhl | |||
NA I 7 9 11 12 80 LOSS OF OR OAV AGE To FACILITY 43 TYPE DESCniP'80N v | |||
* 110 l 9 M | |||
8 9 10 60 D | |||
t2 o isguffhl | |||
[N ESCPIPTION NA l lllllll[ll ll l] | [N ESCPIPTION NA l lllllll[ll ll l] | ||
7 g 9 to 68 63 80 . | 7 g 9 to 68 63 80 . | ||
DVR 80-008 g,yggy,ggg,ggg mMM C. Nd ' | DVR 80-008 g,yggy,ggg,ggg mMM C. Nd ' | ||
PHONE: $ | PHONE: $ | ||
TOLEDO EDISON COMPANY DAVIS-BESSE NUCLEAR POWER STATION UNIT ONE SUPPLEMENTAL INFORMATION FOR LER NP-33-80-06 DATE OF EVENT: January 12, 1980 FACILITY: Davis-Besac Unit 1 IDENTIFICATION OF OCCURRENCE: Ventilator fire damper blocked open with fiberglass insulation Conditions Prior to Occurrence: The unit was in Mode 1, with Power (MWT) = 2764, and Load (Gross MWE) = 923. | |||
Description of Occurrence: On January 12, 1980 at 2200 hours, an equipment opera-tor on his rounds found fiberglass insulation stuffed into an open wall ventilator between the Water Treatment Building and the Service Water Valve Room on the 565' elevation. This ventilator was recently equippped with a three hour rated fire damper per Facility Change Request 78-083 Supplement No. 33. The fiberglass insu-lation would have prevented the damper from closing, therefore, the damper was in-operable. This entered the unit into the action statement of Technical Specifica-tion 3.7.10 which requires a fire watch be established with!r one hour. The opera-tor immediately removed the insulation returning the damper to an operable condi-tion and removing the unit from the action statement. | Description of Occurrence: On January 12, 1980 at 2200 hours, an equipment opera-tor on his rounds found fiberglass insulation stuffed into an open wall ventilator between the Water Treatment Building and the Service Water Valve Room on the 565' elevation. This ventilator was recently equippped with a three hour rated fire damper per Facility Change Request 78-083 Supplement No. 33. The fiberglass insu-lation would have prevented the damper from closing, therefore, the damper was in-operable. This entered the unit into the action statement of Technical Specifica-tion 3.7.10 which requires a fire watch be established with!r one hour. The opera-tor immediately removed the insulation returning the damper to an operable condi-tion and removing the unit from the action statement. | ||
Designation of Apparent Cause of Occurrence: The cause of this event was personnel error in that an unknown persen placed the fiberglass in the damper to block a cold air draft blowing through the area which inadvertently blocked the fire damper as well. | Designation of Apparent Cause of Occurrence: The cause of this event was personnel error in that an unknown persen placed the fiberglass in the damper to block a cold air draft blowing through the area which inadvertently blocked the fire damper as well. |
Latest revision as of 22:23, 1 February 2020
ML19260D559 | |
Person / Time | |
---|---|
Site: | Davis Besse ![]() |
Issue date: | 02/07/1980 |
From: | Chesko R TOLEDO EDISON CO. |
To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
Shared Package | |
ML19260D557 | List: |
References | |
LER-80-006-03L, LER-80-6-3L, NUDOCS 8002110415 | |
Download: ML19260D559 (2) | |
Text
(1 77)
LICENSEE EVENT REPORT CONTROL ULOCK: l I
l l l l l 6
lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI
[0 l1l l0 IH ; D l B l S l 1 l@l 0 l 0 l- l 0 l0 lN lP lF l- l0 l3 14 LICiNSEfeUP/JEH 25 l@426 l1 l1 l1 l1 l@ltl w/*I LICENaL TY PE JJ l
SM lg 7 d 3 Licc a ,;gg c<gg 15, CCUT lolil I al
[' l L l@lE 60 0 [ 5 l 0 COC ta l l 3E R 4 l 6 l@l 0 l1EVENT l - r lE T0*.bl/S bd b) l1 l2 CATE l8 l 0 l@l 0 l 2 REPORTDATE 14 15 l 0 l 7 l 8 l 0oJl@
EVENT OHCRIPTIO*J AND PROBAdLE CC';%CUENCES h o 2 l 0n January 12, 1980 at 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br />, an equipment operator on rounds found fiberglass l lolall insulation stuffed into an open wa'l ventilator between the Water Treatment Building l o a land the Service Water Valve Room. This rende ed the fire damper inoperable. This l lalsl [ entered the unit inR the action statement of Technical Specification 3.7.10. There l j o lc l l vas no danger to the health and safety of the public or station personnel. The insu- l o llation was immediately removed thus restoring the fire damper to operable status. l o 3 l (NP-33-80--06) l 7 6 9 80 SYS T E M CAUSE CAUSE COVP. VALVE CODE CODE SU8 CODE COYPONENT CODE SUSCODE SUDCOOE 1o 1 t]
9 I Al Bl@ y@ lX l@ l Xl Xl Xl Xl Xl Xl@ m
@@ lZ l@ 20 7 8
_, EVENT YE AR REPORTr.O. CCDE TYPE N h gj,gp ;l,ggg3 l8 l0 l l-l l 0l 0l 6l l/l l0l3l lL g l l 26 21 2J 24 26 27 28 D JO 31 32 ACTION FUTLuf FFMCT SHiiTDrT/!N A TT AC HY E N T P 1 rtD-4 PRIVE COYP. COVPCN E P. T TAKEh ACTQN CN PL A*.T YSTHOD HOURS SUBYiT TED FOPM aVB. SUPPLI E R Y4NUFACT qEP lJJX lgl34Il l@ lZl@
h lZl@
34 l0 0 l0 3/ 40 l l Ylg 41 l Nlg lZ Q lZlZl lZg 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h
] i o l The cause of the event was attributed to personnel error in that someone apparently l i i l placed the fiberglass in the damper just to block a cold draft. The fiberglass was l
[ i ; 7 g l immediately removed. No specific group or individual could be singled out for blame, l
, 3 ltherefore, a memo was distributed to all station personnel, security, and project l
~ [i ja i jmanagement to warn against further blockage. l 7 8 9 80 STA 5 *.PCWER OTHER STATUS is O RY QlSCOVERY DESCRIPTION
~ M Wh !1 l 0 l 0 lhl NA l l B l@l coutument operator on rounds l ACTIVl1 V CO TENT RELEASED CF PELEASE AVOUNT OF ACTIVITY LOCATION Oc RELEASE i li c I bJ @ LzJ@ Na I i N^ l 7 8 3 10 ti 44 45 80 PERSONNEL E XPO^.URES NU'/3ER TVPE DESCRIPTION '
1 LLDJ ' '
l 01 of ol@l zl@l
NA l
, tRSONNii.'imuLS .
n4 3 ,co NevsE R oESCaiPfiONh -
V
-_ E I8 of o ol@l NA I 7 9 11 12 80 LOSS OF OR OAV AGE To FACILITY 43 TYPE DESCniP'80N v
- 110 l 9 M 8 9 10 60 D
- t2 o isguffhl
[N ESCPIPTION NA l lllllll[ll ll l]
7 g 9 to 68 63 80 .
DVR 80-008 g,yggy,ggg,ggg mMM C. Nd '
PHONE: $
TOLEDO EDISON COMPANY DAVIS-BESSE NUCLEAR POWER STATION UNIT ONE SUPPLEMENTAL INFORMATION FOR LER NP-33-80-06 DATE OF EVENT: January 12, 1980 FACILITY: Davis-Besac Unit 1 IDENTIFICATION OF OCCURRENCE: Ventilator fire damper blocked open with fiberglass insulation Conditions Prior to Occurrence: The unit was in Mode 1, with Power (MWT) = 2764, and Load (Gross MWE) = 923.
Description of Occurrence: On January 12, 1980 at 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br />, an equipment opera-tor on his rounds found fiberglass insulation stuffed into an open wall ventilator between the Water Treatment Building and the Service Water Valve Room on the 565' elevation. This ventilator was recently equippped with a three hour rated fire damper per Facility Change Request 78-083 Supplement No. 33. The fiberglass insu-lation would have prevented the damper from closing, therefore, the damper was in-operable. This entered the unit into the action statement of Technical Specifica-tion 3.7.10 which requires a fire watch be established with!r one hour. The opera-tor immediately removed the insulation returning the damper to an operable condi-tion and removing the unit from the action statement.
Designation of Apparent Cause of Occurrence: The cause of this event was personnel error in that an unknown persen placed the fiberglass in the damper to block a cold air draft blowing through the area which inadvertently blocked the fire damper as well.
Analysis of Occurrence:
There was no danger to the health and safety of the public or to unit personnel. The Service Water Valve Room sprinkler system was operable and would tave protected any safety related equipment that may have been exposed to a fire passing through the inoperable ventilator damper.
Corrective Action: The insulation was removed from the damper at 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br /> on January 12, 1980 removing the unit from the action statement of Technical Speci-fication 3. 7.10. A memo to al.1 station personnel, security, and project management was prepared to warn about blocking fire dampers.
Failure Data: There have been no previously reportable occurrences of this type.
. t LER #80-006
<n4 4 r9 i
4