ML19326B853: Difference between revisions
StriderTol (talk | contribs) Created page by program invented by StriderTol |
StriderTol (talk | contribs) StriderTol Bot change |
||
| (2 intermediate revisions by the same user not shown) | |||
| Line 12: | Line 12: | ||
| document report number = NUDOCS 8004180590 | | document report number = NUDOCS 8004180590 | ||
| package number = ML19326B844 | | package number = ML19326B844 | ||
| document type = REPORTABLE OCCURRENCE REPORT (SEE ALSO AO | | document type = REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER), TEXT-SAFETY REPORT | ||
| page count = 4 | | page count = 4 | ||
}} | }} | ||
=Text= | =Text= | ||
{{#Wiki_filter: | {{#Wiki_filter:.__ | ||
m | m | ||
('O 1-Reportabic Occurrence Report No. 50-313/76-25 2. | |||
Report Date: 9/27/76 3. | |||
Occurrence Date: 8/31/76 4 | |||
Facility: | |||
('O | Arkansa? Nuclear One-Unit 1 Rursellv11.a, Arkansas 5. | ||
Identification of Occurrence: | |||
1- | Leak in "B" decay heat discharge line. | ||
d 6. | |||
Conditions Prior to Occurrence: | |||
Steady-State Power Reactor Power 0 | |||
MWth llot Standby Not Output 0 | |||
MWe i | |||
Steady-State Power | Cold Shutdown X | ||
Cold Shutdown | Percent of Full Power 0 | ||
Refueling Shutdown | *5 i | ||
Refueling Shutdown Load Changes During Routine Power Operation i | |||
Routine Startup i. | |||
Routine Shutdown | Operation Routine Shutdown | ||
} | |||
] | Operation | ||
] | |||
Other (specify) 7. | |||
Description of Occurrence: | |||
At 0420 hours on 8/31/76, an approximate 2 gpm leak was discovered in the heat affected zone of the boss to line weld for DH-1019. | At 0420 hours on 8/31/76, an approximate 2 gpm leak was discovered in the heat affected zone of the boss to line weld for DH-1019. | ||
The crack was in the 10" discharge line downstream of decay heat. | The crack was in the 10" discharge line downstream of decay heat. | ||
]l | ]l cooler E3SB. | ||
;j | ;j g 9 0418 a | ||
Attachuent "C" l | |||
g 9 0418 | !! arch 23,1976 NSP-10, Rev. 4 Page 2 of 4 1 | ||
a | |||
Attachuent "C" l | |||
I | |||
~ | |||
~ | |||
s s | |||
Reportable Occurrence Report No. | |||
50-313/76-25 | |||
) | |||
8. | |||
Designation of Apparent Cause ol' Occurrence: | |||
) | |||
Design Procedurc Manufacture Unusual Service Condition including Environmental Installation / | |||
Design | Construction Component Failure Operator Other (specify) | ||
Construction | X The probable cause of the crack was excessive vibration. | ||
Operator Other (specify) | |||
The probable cause of the crack was excessive vibration. | |||
b t | b t | ||
s 9. | |||
Analysis of Occurrence: | |||
s | |||
The leak was confined to the Reactor Auxiliary Building; hence, there wa._no hazard to the health and safety of the public. | The leak was confined to the Reactor Auxiliary Building; hence, there wa._no hazard to the health and safety of the public. | ||
Attachment "C" March 23, 1976 NSP-10, Rev. 4 Page 3Of4 l | |||
Attachment "C" March 23, 1976 | |||
I | I | ||
.v. | |||
w | |||
,h | |||
~ | |||
m | m l l, | ||
+- ' | |||
l l, | Reportable Occurrence Report iio. | ||
50-313/70-25 10. | |||
Corrective Action: | |||
Reportable Occurrence Report iio. | |||
The repair was made by removing r. 2 ft. section of the schedule 10.p.iping and replacing with new section. | The repair was made by removing r. 2 ft. section of the schedule 10.p.iping and replacing with new section. | ||
!j | |||
!j | |||
,i - | ,i - | ||
11. | |||
. | Failure Data: | ||
Cracked welds reported in Reportable Occurrence Report 50-313/74-2, 76-10, and 76-24. | |||
Section of pipe had same heat number of 800201. | |||
I I | |||
I l | |||
Attachment "C" March 23,1976 NSP-10, Rev. 4 Page 4 of 4 w- | |||
--,..py-qs,w | |||
Cracked welds reported in Reportable Occurrence Report 50-313/74-2, 76-10, and 76-24. Section of pipe had same heat number of 800201. | ,y- | ||
* I | ,y y | ||
w | |||
-y y | |||
-m, | |||
-m | |||
8 UCENSEE EVENT REPORT CONmat 8tOCx:1 1 | |||
I I | |||
I l | |||
l casase paar au amoumao =PoemaTem 1 | |||
8 I | |||
(]t l A l/ll Al AI MI ll | |||
"*""l' | |||
' v'"J' | |||
?v'n*' | |||
uCENSE NUM8ER T | |||
u 10101-1010101 ol ol-l ol o l I vl / II l/ I tl lol31 1 | |||
7 89 14 15 25 28 30 31 32 TPE 00CxtT NUMBER EVENT CATE REPORT CATE CATEGORY 01 con T l l | |||
I W I I. I lo l sl ol-l ol 71 i l2 I I ci f l 11/ l 71 tl I ol4121717l(I 7 8 57 58 59 SO 81 68 89 74 75 80 EVENT OFSCRIPTION O | |||
l 0 % v lsu (olN s $ a d a us u a - l P er l< | |||
Ifeouev N Eu 4= l. a I | |||
war 7 89 80 W I h er, w> | |||
09 e s+ | |||
ob | |||
+ l | |||
* N e 12 1" O E m ** wnf I | |||
a | |||
~2. es u o 7 89 80. | |||
1 04 I O A - (04 4. | |||
*w l $ a e oCCuvs+= rei vt MF e ** Y t $ i% | |||
1 v un ue 7 89 80 | |||
[ | |||
O5 l ce - 1 o /r v-1 to -in/7 c-i o a d re-) is/,z1v TL,, | |||
4., | |||
I | I | ||
[ | |||
Oe I s e e_ v,'e. | |||
e l lo o r e o f a e,. | |||
( So In ht-2 r ) | |||
l 7 89 80 7 89 p,.lg 80 Y:E | |||
*Yo*E E | |||
O f | |||
C CouPcNENT CooE vmATcN E Icifl [FJ Lp-l M al M a l a i LA' IPl414I91 lul 4 | |||
f 7 89 10 11 12 17 43 44 47 48 CAUSE DESCRPTION | |||
@l f% t.. U. | |||
e..c. | |||
u, a s e n e.cr;ve v A..,:o w Two J. s I | |||
7 89 80 09 i seentou of ceted le to a :- :- | |||
Oe I s e e_ v ,'e . | |||
lo o | |||
r e o f a e ,. | |||
80 | |||
Y:E | |||
CouPcNENT CooE | |||
CAUSE DESCRPTION | |||
09 i seentou of ceted le | |||
v e n tu el. | v e n tu el. | ||
P:s :-. | |||
P:s :-. | t, o d I | ||
45 | 7 89 | ||
PERSONNEL EXPOSURES NUM8ER | ~' | ||
PERSONNEL INJURIES NUMBER | / | ||
80 | |||
( | . t.. - | ||
oC enn 1a r I | |||
TYPE | (m ! L ea ST 4 POWER OTHER STATUS O COVERY CSCOVERY OESCRIPTICN | ||
7 89 | [GJ l olo lo i I NA I | ||
LkJ l | |||
A/4 I | |||
11 7 8 9 | |||
10 12 13 44 45 46 80 AMOUNT OF ACTMTY LCCATION OF RELEASE A | |||
0 0 W | |||
L2] LEASE l NA l | |||
l NA l | |||
12 7 8 9 | |||
10 11 44 45 80 PERSONNEL EXPOSURES NUM8ER TvPE DESCRtPTION 13 Iof clo I l el I | |||
#A I | |||
7 89 11 12 13 80 PERSONNEL INJURIES NUMBER CdSCRIPTION 1010101 I | |||
NA I | |||
14 7 89 11 12 80 OFFSITE CONSEQUENCES ui NA I | |||
7 89 80 | |||
( | |||
LOSS OR DAMAGE TO FAC:LITY TYPE CESCRIPTION I | |||
I I | |||
7 89 10 80 PUBUCITY 17 I Md i | |||
7 89 80 | |||
((N)I ADDITIONAL FACTCRS | |||
#A I | |||
l l | |||
W89 80 l | |||
19 I I | |||
O a s :<. { H | |||
\\u;II;< ~ r PnCNg;% I)1 H-992 NAue: | |||
va......,}} | |||
Latest revision as of 08:50, 31 December 2024
| ML19326B853 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear |
| Issue date: | 09/27/1976 |
| From: | David Williams ARKANSAS POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML19326B844 | List: |
| References | |
| NUDOCS 8004180590 | |
| Download: ML19326B853 (4) | |
Text
.__
m
('O 1-Reportabic Occurrence Report No. 50-313/76-25 2.
Report Date: 9/27/76 3.
Occurrence Date: 8/31/76 4
Facility:
Arkansa? Nuclear One-Unit 1 Rursellv11.a, Arkansas 5.
Identification of Occurrence:
Leak in "B" decay heat discharge line.
d 6.
Conditions Prior to Occurrence:
Steady-State Power Reactor Power 0
MWth llot Standby Not Output 0
MWe i
Cold Shutdown X
Percent of Full Power 0
- 5 i
Refueling Shutdown Load Changes During Routine Power Operation i
Routine Startup i.
Operation Routine Shutdown
}
Operation
]
Other (specify) 7.
Description of Occurrence:
At 0420 hours0.00486 days <br />0.117 hours <br />6.944444e-4 weeks <br />1.5981e-4 months <br /> on 8/31/76, an approximate 2 gpm leak was discovered in the heat affected zone of the boss to line weld for DH-1019.
The crack was in the 10" discharge line downstream of decay heat.
]l cooler E3SB.
- j g 9 0418 a
Attachuent "C" l
!! arch 23,1976 NSP-10, Rev. 4 Page 2 of 4 1
I
~
~
s s
Reportable Occurrence Report No.
50-313/76-25
)
8.
Designation of Apparent Cause ol' Occurrence:
)
Design Procedurc Manufacture Unusual Service Condition including Environmental Installation /
Construction Component Failure Operator Other (specify)
X The probable cause of the crack was excessive vibration.
b t
s 9.
Analysis of Occurrence:
The leak was confined to the Reactor Auxiliary Building; hence, there wa._no hazard to the health and safety of the public.
Attachment "C" March 23, 1976 NSP-10, Rev. 4 Page 3Of4 l
I
.v.
w
,h
~
m l l,
+- '
Reportable Occurrence Report iio.
50-313/70-25 10.
Corrective Action:
The repair was made by removing r. 2 ft. section of the schedule 10.p.iping and replacing with new section.
!j
,i -
11.
Failure Data:
Cracked welds reported in Reportable Occurrence Report 50-313/74-2, 76-10, and 76-24.
Section of pipe had same heat number of 800201.
I I
I l
Attachment "C" March 23,1976 NSP-10, Rev. 4 Page 4 of 4 w-
--,..py-qs,w
,y-
,y y
w
-y y
-m,
-m
8 UCENSEE EVENT REPORT CONmat 8tOCx:1 1
I I
I l
l casase paar au amoumao =PoemaTem 1
8 I
(]t l A l/ll Al AI MI ll
"*""l'
' v'"J'
?v'n*'
uCENSE NUM8ER T
u 10101-1010101 ol ol-l ol o l I vl / II l/ I tl lol31 1
7 89 14 15 25 28 30 31 32 TPE 00CxtT NUMBER EVENT CATE REPORT CATE CATEGORY 01 con T l l
I W I I. I lo l sl ol-l ol 71 i l2 I I ci f l 11/ l 71 tl I ol4121717l(I 7 8 57 58 59 SO 81 68 89 74 75 80 EVENT OFSCRIPTION O
l 0 % v lsu (olN s $ a d a us u a - l P er l<
Ifeouev N Eu 4= l. a I
war 7 89 80 W I h er, w>
09 e s+
ob
+ l
- N e 12 1" O E m ** wnf I
a
~2. es u o 7 89 80.
1 04 I O A - (04 4.
- w l $ a e oCCuvs+= rei vt MF e ** Y t $ i%
1 v un ue 7 89 80
[
O5 l ce - 1 o /r v-1 to -in/7 c-i o a d re-) is/,z1v TL,,
4.,
I
[
Oe I s e e_ v,'e.
e l lo o r e o f a e,.
( So In ht-2 r )
l 7 89 80 7 89 p,.lg 80 Y:E
- Yo*E E
O f
C CouPcNENT CooE vmATcN E Icifl [FJ Lp-l M al M a l a i LA' IPl414I91 lul 4
f 7 89 10 11 12 17 43 44 47 48 CAUSE DESCRPTION
@l f% t.. U.
e..c.
u, a s e n e.cr;ve v A..,:o w Two J. s I
7 89 80 09 i seentou of ceted le to a :- :-
v e n tu el.
P:s :-.
t, o d I
7 89
~'
/
80
. t.. -
oC enn 1a r I
(m ! L ea ST 4 POWER OTHER STATUS O COVERY CSCOVERY OESCRIPTICN
[GJ l olo lo i I NA I
LkJ l
A/4 I
11 7 8 9
10 12 13 44 45 46 80 AMOUNT OF ACTMTY LCCATION OF RELEASE A
0 0 W
L2] LEASE l NA l
l NA l
12 7 8 9
10 11 44 45 80 PERSONNEL EXPOSURES NUM8ER TvPE DESCRtPTION 13 Iof clo I l el I
- A I
7 89 11 12 13 80 PERSONNEL INJURIES NUMBER CdSCRIPTION 1010101 I
NA I
14 7 89 11 12 80 OFFSITE CONSEQUENCES ui NA I
7 89 80
(
LOSS OR DAMAGE TO FAC:LITY TYPE CESCRIPTION I
I I
7 89 10 80 PUBUCITY 17 I Md i
7 89 80
((N)I ADDITIONAL FACTCRS
- A I
l l
W89 80 l
19 I I
O a s :<. { H
\\u;II;< ~ r PnCNg;% I)1 H-992 NAue:
va......,