ML20215E617
| ML20215E617 | |
| Person / Time | |
|---|---|
| Site: | Pilgrim |
| Issue date: | 10/07/1986 |
| From: | Ebneter S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Lydon J BOSTON EDISON CO. |
| Shared Package | |
| ML20215E619 | List: |
| References | |
| NUDOCS 8610150403 | |
| Download: ML20215E617 (2) | |
See also: IR 05000293/1986024
Text
-
.
October 7, 1986
Docket No. 50-293
Boston Edison Company M/C Nuclear
ATTN: Mr. James M. Lydon
' Chief Operating Officcr
800 Boylston Street
Boston, Massachusetts 02199
Gentlemen:
Subject: Inspection Report No. 50-293/86-24
This refers to tne special safety inspection conducted by Mr. G. Napuda of this
office on August 4-8, 1986 at Pilgrim Power Station, Plymouth, Massachusetts
and your Braintree, Massachusetts Corporate Offices of activities authorized by
NRC License DRP-35 and to the diccussions of our findings held by Mr. Napuda
with you and other members of your staff at the conclusion of the inspection.
Areas examined during this inspection are described in the NRC Region I
Inspection Report which is enclosed with this letter. Within these areas, the
inspection consisted of selective examinations of procedures and representative
records, interviews with personnel, and observations by the inspector.
Within the scope of this inspection, no violations were observed.
The reactor coolant recirculation pump trip equipment must be designed to perform
its function in a reliable manner as required by 10 CFR 50.62.
During this inspec-
tion, the inspectors reviewed the failure history of the recirculation pump motor
i
generator (MG) field breakers which was documented in failure and malfunction
report numbers85-003, 85-013,85-017, 85-157 and 85-165. Similar problems have
been discussed in NRC inspection reports 50-293/83-09, 85-03, 85-14 and 86-21.
The repetitive failures of these breakers call into question the reliability of
.
these devices and if they meet 10 CFR 50.62.
Further, the repetitive failures are
!
indicative of ineffective corrective actions and an inadequate trending program.
It is our understanding that the most recent MG breaker failure (F&MR 86-157) is
undergoing fr.ilure analysis by your staff.
Please provide the results of the
failure and your proposed corrective action to this office .when the results
become available.
Sincerely,
Or icinal Signed By:
Stewart D. Ebneter, Director
Division of Reactor Safety
Enclosure: NRC Region I Inspection Report Number 50-293/86-24
0FFICIAL RECORD COPY
IR PILGRIM 86-24 - 0001.0.0
Boloiso
11/29/80
49
861007
G
0500o29a -
f
I
%C\\
J
.
.
Boston Edison Company M/C Nuclear
2
cc w/ encl:
L.-0xsen, Vice President, Nuclear Operations
A. E. Pedersen, Station Manager
Paul Levy, Chairman, Department of Public Utilities
Edward R. MacCormack, Senior Regulatory Affairs and Program Engineer
Chairman, Board of Selectmen
Plymouth Civil Defense Director
J. D. Keyes
The Honorable E. J. Markey
Senator Edward P. Kirby
The Honorable Peter V. Forman
Sharon Pollard
Public Document Room (PDR)
Local Public Document Room (LPDR)
Nuclear Safety Information Center (NSIC)
NRC Resident Inspector
CommonwealthofMassachusetts(2)
bec w/ encl:
Region I Docket Room (with concurrences)
Management Assistant, DRMA (w/o encl)
Section Chief, DRP
W. Raymond, SRI, Vermont Yankee
T. Shediosky, SRI, Millstone 1&2
H. Eichenholz, SRI, Yankee
P. Leech, LPM, NRR
PA0 (2) SALP Reports Only
Robert J. Borcs, DRSS
,
d
_
RS
R
S
R
. RS
"
uda
E en
Be'ttenhausen
9//fl/86
9////86
9//f/86
0FFICIAL RECORD COPY
IR PILGRIM 86-24 - 0001.0.1
09/18/86
.
f
.
t
!
l
-
. .