ML19326B618
| ML19326B618 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 03/14/1973 |
| From: | Phillips J ARKANSAS POWER & LIGHT CO. |
| To: | Jennifer Davis NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML19326B616 | List: |
| References | |
| IEB-72-03, IEB-72-3, NUDOCS 8004160394 | |
| Download: ML19326B618 (2) | |
Text
['-_)
~
,f" j
H GLPIN G BUILD ARKANSAS
)
J A R K AN S A S P OW E R & LIG HT C f'M P A NY STM Avenue ANo PINE STFleer
- PINE BLUfEP, AAKANSAS 71601 (5013534-1330 March 14,1973
-l Mr. John G. Davis, Director Directorate of Regulatory Operations - Region II United States Atomic Energy Commission 230 Peachtree Street, N.W. - Suite 818 1
Atlanta, Georgia 30303 7
REFERENCE:
RO:II 50:313 DRO Bulletin No. 72-3 Limitorque Valve Operator Failures i
Dear Mr. Davis:
The following information is submitted as requested in DRO Balletin No. 72-3, "Limitorque Valve Operator Failures", dated December 4,1972.
s Our investigation reveals that there are seventy-five (75) operators y/
which are Limitorque models SMB-00 or SMB-000 and may have been manufactured between 1969 and mid-1971. These operators are associated with valves which In-are installed, or scheduled to be installed, in the following systems:
termediate cooling water, circulating water, service water, reactor coolant, decay heat, emergency feedwater, main steam, makeup, sampling, reactor build-ing spray, core flood, and chemical addition.
We have corresponded with the Limitorque Corporation through our Architect Engineer and NSSS supplier and have received their cooperation in identifying operators that may contain defective torque switches and supplying the required replacement switches. In addition, Limitorque has provided a field representa-tive to instruct AP&L personnel involved in replacement activity.
Some replacement switches have already been installed and other operators' will be examined for replacement as replacement switches are received and systems are turned over from Construction. All required operators will be examined and switches installed as necessary prior to the conclusion of pre-operational testing.
Yours truly,
/:
')f. /.
- )L
.%sfj, 9
{
s
/
('
'J. D. PEILLIPS
-m Vice President & Chief Engineer
[
')
'w/
JDP: NAM:mb 8{}u4iGOM ph, usuaan uiooLe sours umiries overeu l
ram,~.,~,s.ron owneo a
fb MAY 21 B73 Letter from Arkansas Power and Light Company dated 12/27/72.
Letter from Arkansas Power and Light Company dated 1/23/73.
' Letter from Arkansas Power and Light Company dated 3/14/73.
Regulatory Operatior.s Bulletin No. 72-3 e'
DISTRIBUTION:
~
!!. D. Thornburg, RO HQ (4)
Diractorate of Licensing (4)
DR Central Files PDR Local PDR NSIC OIS, OR
,e i
k WLp W I g
g e
pg eh g
,m
- e es a *.,-
A k
--