ML19352A113
| ML19352A113 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 06/21/1974 |
| From: | CONSOLIDATED EDISON CO. OF NEW YORK, INC. |
| To: | |
| References | |
| NUDOCS 8103060127 | |
| Download: ML19352A113 (1) | |
Text
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2b.
Occurrence untes v u.,o.-
i
' 3.
Fccilityy.,
Indian Point Un No.1 4.
Identification of Occurrence:
This occurrence is the, type defined by Technical Specification 6.3.A.1.b.4 and relates to loss of the l
Fast Insertion Pulser of the Nuclear Instrumentation
~
System.
S.
Conditions Prior to occurrence _:
~
Prior to and during the time of this occurrence, the reactor was operating at power levels of 55-95t j
with three loops and six primary coolant pumps in service.
I 6.
.De_scription of occurrence:
On several occasions during the pe'.iod of this i
occurrence, the electrical feed to the Past Insertion I
Pulser was interrupted due to failure of the power l
supply and/or blowing of protective fuses.
)
7.
Description of Appa_ rent cause of occurrence:
continuing investigation has not yet indicated l
any apparent cause for this problem.
8.
Analysis of Occurrence:
As indicated in earlier reports dealing with A.O. 4-1-8, which also involved the loss of the 3
Past Insertion Pulser, the safety implications of this occurrence are slight.
9.
Corre_ctive Action:
Immediate corrective 'a'ctions have, been to replace -
)
the power supply and/or fuses, as necessary, which re-l turns.the pulser to service.
Final corrective action will be based on the outcome of the continuing inves-j tigation of this problem.
10.
Notification:
Mr. Anthony Fasano of the Region I RO Office was f
notified of this occurrence by telephone at 10:45 A.M.
J l
.on June 21, 1974.
i 1
Fom /v P00R ORIGINAL
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