ML20215N399
| ML20215N399 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 10/22/1986 |
| From: | Haynes J ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| 2-SR-86-030, 2-SR-86-30, ANPP-00108-JGH, ANPP-108-JGH, NUDOCS 8611050351 | |
| Download: ML20215N399 (2) | |
Text
,
Arizona Nuclear Power Project P.O Box 52034
- PHOENIX, ARIZONA 85072-2034 ANPP-00108-JGH/TDS/JHT-96.03 October 22, 1986 g
U?
Mr. John B. Martin, Regional Administrator M
m Q
Office of Inspection and Enforcement E
to
~"
U.S. Nuclear Regulatory Commission q,
> pg Region V
?
g (3
1450 Maria Lane, Suite 210 p.,
Walnut Cre'ek, CA 94596-5368 1
o
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Unit 2 Docket No. STN 50-529 (License NPF-51)
Special Report-2-SR-86-030 File: 86-020-404
Dear Mr. Martin:
Attached please find a Special Report (2-SR-86-030) prepared and submitted pursuant to Technical Specifications 3.3-13 and 6.9 2.
This report discusses the inoperability of the Containment B1111 ding Atmosphere Particulate channel.
If you have any questions, please contact T. R. Bradish, Compliance Supervisor at (602)932-5300 Ext. 6936.
Very truly yours, J. G. Haynes Vice Fresident Nuclear Production JGH/JHT/cld Attachment ec:
- 0. M. DeMichele (all w/a)
E. E. Van Brunt, Jr.
R. P. Zimmerman R. C. Sorenson E. A. Licitra A. C. Gehr INP0 Records Center f611050351 861022 R
ADOCK 05000529 S
PDR I
qL -c /
~.
b m
2,.
n.
PALO VERDE NUCLEAR GENERATING STATION Special Report 2-SR-86-030 CONTAINMENT BUILDING ATN0 SPHERE PARTICULATE CHANNEL NOT RESIDRED WITHIN 72 HOURS.
. Docket No. 50-529~
License No. NPF-51
-This:special report is being submitted in accordance with Palo Verde Unit 2 Technical Specification Table 3.3-6,. Action 27.
At 2'210 on September 24,1986,.'Palo Verde Unit 2 was in Mode 3 (HOT ' STANDBY) when the Containment Building. Atmosphere Particulate Channel was declared inoperable 1because the channel readout was. showing no change in activity level.
Initial indications were that the~ monitor's a'ssociated computer was experiencing spurious memory losses.
In accordance with Action 27, a moveable air monitor was placed in line.
Troubleshooting of the monitor did'not indicate that.the computer was experiencing memory losses. Troubleshooting of the detector was then conducted. The-detector was determined;to be working satisfactorily.
The Containment. Building Atmosphere Particulate channel is a rate'of change monitor. 'Under certain steady state conditions the particulate channel readout may show little or no change. in activity level. - Since no deficiencies could be
'found, the particulate channel was returned to service af ter successful completion of the applicable surveillance test.
e The particulate channel was declared operable at 0730 on September 29, 1986.
l
+
l s
i
- l I
_--a,._----_--
n-_._,-
... - - -.