ML20244B664
| ML20244B664 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 06/08/1989 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML20244B651 | List: |
| References | |
| 50-373-89-08, 50-373-89-8, 50-374-89-08, 50-374-89-8, NUDOCS 8906130203 | |
| Download: ML20244B664 (1) | |
See also: IR 05000373/1989008
Text
e
.
1
...
.
monthly schedule. The licensee also planned to inspect the damper
'
at the first available opportunity which appeared to be the next
i
refueling outage scheduled to commence on September 2, 1989. Work
Request (WR) L89127 and Action Item Record (AIR) 373-200-89-03401
,
were initiated for this purpose.
]
On April 19, 1989, on the first attempt to close the IVR05YA damper
.
per the reduced frequency testing, 'the damper failed to fully close
l
and was declared inoperable. -Subsequently, the damper was cycled
j
two more times with each closure occurring in 5 seconds or less.
l
The licensee issued WR 89255 to replace the solenoid valves. This
action was completed on April 19, 1989; the dampers were retested
satisfactorily and declared operable again.
Since the licensee was
4
not sure that the unsatisfactory isolation times was due to the
'
solenoids or to some other problem, they reinitiated the increased
surveillance frequency of testing to verify their continued oper-
ability.
j
On April 20, 1989, the inspectors observed bench testing of the
removed solenoid valves.
During this testing, the solenoid valves
appeared to operate normally.
In order to simulate more closely
the in use conditions (solenoids normally energized), the solenoid
l
valves were left energized over night with plans to retest on
April 21. However, on the morning of April 21, the solenoids were
inadvertently de-energized. The solenoids were then re-energized
and allowed to sit for approximately 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br />. Upon retest, the
,
solenoid valves appeared to function normally. The solenoid valves
i
were then disassembled by the licensee. While signs of some minor
residue was found inside of the valve body, nothing that would
cause the valve to fail or stick was noted. The licensee is
continuing their investigation. The completion of this investiga-
!
tion as well as resolution of questions provided by the inspector
to the licensee over this event wil' Se tracked as an open item
,
(373/89008-01(DRP)).
l
,
One open item was identified in this area.
6.
Training (41400)
The inspector, through discussions with personnel, evaluated the
licensee's training program for operations and maintenance personnel to
determine whether the general knowledge of the individuals was sufficient
for their assigned tasks.
On April 10, 1989, fifteen INP0 personnel performed a site inspection
pertaining to LaSalle's licensing requalification program. The
assessment team was on site for one week.
l
l
No violations or deviations were identified in this area.
7.
LicenseeEventReportsFollowup(937021
Through direct observations, discussions with licensee personnel, and
review of records, the following event reports were reviewed to determine
that deportability requirements were fulfilled, immediate corrective
8906130203 890608
ADOCK 05000373
7
Q
_____o