ML19352A750
| ML19352A750 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 04/16/1981 |
| From: | Crossman W, Hubacek W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | |
| Shared Package | |
| ML19352A747 | List: |
| References | |
| 50-498-81-09, 50-498-81-9, 50-499-81-09, 50-499-81-9, NUDOCS 8106020011 | |
| Download: ML19352A750 (6) | |
See also: IR 05000498/1981009
Text
O-
U.S. NUCLEAR REGULATORY COMMISSION
OFFICE OF INSPECTION AND ENFORCEMENT
REGION IV
Report No. 50-498/81-09; 50-499/81-09
Docket No. 50-498; 50-499
Category A2
Licensee: Houston Lighting and Power Company
Post Office Box 1700
Houston, Texas
77001
Facility Name: South Texas Project, Units 1 & 2
Inspection at: Houston, Texas
Inspection Conducted: March 25-27, 1981
Inspecto.r: [# . 9 9 V9 d r o d
9//6/7/
W. G. Hubacek, Reactor Inspector, Projects Section No. 3
Date
Approved:
/
'/ 4 [# /
m.
W. A. Crossman, Chief, Projects Section No. 3
Date
Inspection Summary:
Inspection on March 25-27, 1981 (Recort tio. 50-498/81-09; 50-499/81-09)
Areas Inspected: Announceo inspection of licensee corrective action in response
to previous inspection findings and 10 CFR Part 50.55(e) items.
The inspection
involved twenty inspector-hours by one NRC inspector.
Results: No violations or deviations were identified.
-
8106 02 0 Oll
.
.
.
DETAILS
1.-
Persons Contacted
Principal Licensee Employees
- J. H. Goldberg, Vice President, Engineering and Construction
- W. N. Phillips, Projects QA Manager
-R. L. Ulroy, Houston QA Manager
. R. A. Romeo, Supervisor, Audits and Technical Services
!
- L. R. Jacobi,-Supervising Engineer, Nuclear Licensing
- R. M. McDaniel, Senior QA Specialist
,
M. E. Powell, Licensing Team Leader
S. S. Rodgers, Engineer
The NRC. inspector also contacted other licensee employees including
-;
members of the OA and engineering staffs.
- Denotes those attending the exit interview on March 27, 1981.
2.
Licensee Action on Previous Inspection Findinos
(Closed) Deficiency (50-498/79-13-A.0; 50-499/79-13-A.D): Failure to
Maintain Completed Audit Checklist in Audit Files.
The NRC inspector
observed that QAP-58, which contains requirements relative to audit
checklists, has been revised and training in the procedure reovire-
ments has been accomplished on several occasions since this finding
was identified. The most recent training of QA personnel was accom-
plished on January 12 and 15,1981. The checklist for Audit HL-60
has been corrected. Review of checklists for eight other randomly
selected audits indicated that the checklists were complete and
adequately maintained in the audit files.
This matter is closed.
(Closed) Unresolved Item (50-498/79-13-3.d; 50-499/79-13-13.d):
Inadequate Response to Findings in Audit BR-26.
The NRC inspector
observed that an amended response regarding the control of the
l
Brown & Root (B&R) training manual was considered acceptable by
Houston Lighting and Power Company (HL&P). The amended response
'
was expanded to include review of other 0A controlled manuals.
HL&P
acceptance of the response and follow up to verify implementation of
B&R corrective action were documented in HL&P letter ST-HL-BR-4750,
dated February 28, 1980.
This matter is resolved.
-2-
__
o
.
-
-
T
f
,
'
.
.
(Closed)~ Unresolved Item (50-498/79-13-3.k; 50-499/79-13-3.k): Auditor
Certifications. 'Following an unsuccessful effort to locate the missing
auditor certification records for the two terminated' employees, the
licensee reconstructed the records from information obtained from training
-
files and audit records. As recurrence control, all auditor certification
records have been microfiched and are maintained in the HL&P Records
Management System vault.
.
.
The NRC inspector was informed that HL&P Procedure OAP-5A was revised
to comply with ANSI N45.2.23-1978 and that auditor qualifications have
been reviewed and updated to ANSI N45.2.23 requirements. The NRC
inspector reviewed randomly selected certification records of twelve
personnel who participated in recent HL&P audits and found them to be
in compliance with Procedure QAP-SA.
This . matter is resolved.
,
3.
Review of Reported Construction Deficiencies
The NRC inspector reviewed licensee corrective actions taken relative
to matters reported to the NRC in accordance with the requirenents of
f
10 CFR Part 50.55(e). The following items were reviewed:
a.'
Reduced Secondary Cooling Following a Main Feedwater Line Rupture
With an Assumed Failure in the Secondary Blowdown System
Following receipt of a Westinghouse letter, dated February 20, 1980,
which informed HL&P of the potential for reduced secondary cooling
with an assumed failure in the steam generator blowdown system,
HL&P notified the NRC on February 26, 1980, that this matter was
considered to be a potential construction deficiency.
Brown & Root subsequently reviewed this matter and determined that
the postulated event could not prevent an adequate supply of
secondary cooling water from being introduced to the steam generators.
It was also determined that the design of the isolation valve cubicle
prevented interactions between the feedwater lines and secondary blow-
down lines which could cause reduction of secondary cooling to an
unacceptable level. The HL&P Incident Review Committee which met on
March 26,1980, concurred with the B&R evaluation and determined that
this matter was not reportable under 10 CFR Part 50.55(e). The NRC
was notified on March 27, 1980, that the evaluation revealed that
there was no associated safety concern.
Based on review of records and discussions with licensee represen-
tatives, the NRC inspector concurred with the licensee's evaluations
and had no further questions regarding this matter.
e
-3-
_
. .
.
-
,
b.
Unqualified Operator for the Turbine Driven Auxiliary Feedwater
Pumps
Following a meeting of the Incident Review Comittee. HL&P notified
the NRC on April 10, 1980, that the moter operators on the trip and
throttle valves for the Auxiliary Feedwater Pumps for STP, Units 1
and 2 were not qualified to Class'IE reouirements. This condition
was identified by B&R following the delivery of the Turbine Driven
Auxiliary Feedwater Pumps to the STP site.
It was determined that
this condition could affect the proper operation and safety function
of the Auxiliary Feedwater Systems. Corrective action will be
accomplished by replacement of the unqualified motor operators with
Class IE motor operators prior to plant startup. The defective
valves have been returned to the turbine supplier and are presently
awaiting the availability of qualified replacements. The final
report on this matter was submitted to the NRC on May 7, 1980.
Based on review of records and discussions with licensee represen-
tatives, the NRC inspector concurred with the licensee's evaluation-
of this matter and the proposed replacement of the unqualified
motor operators.
c.
Breakdown in the Ouality Program - Procurement Cycle of Purchased
%terials
On June 13, 1980, HL&P notified the NRC of a breakdown in the quality
program for the procurement cycle of purchased material and equipment.
The breakdown was identified by a Vendor Control Program initiated by
B&R to study the effectiveness of prior vendor coordination and
surveillance activities following failure of the B&R OA Vendor
Surveillance Program to detect inadequate documentation of welder
certification at a Category I steel supplier's facility.
A controlled release procedure was initiated at the STP site on
June 16,1980, to provide quality control verification of required
records for efety-related materials and equipment prior to release
by Quality Engineering to Construction.
Technical Reference Document (TRD) 7A700GP007, " Vendor Control
Program for Safety-Ralated Equipment and Materials," has been issued
and establishes the basis and provides instructions for reviewing
and investigating the adequacy and control of the STP Vendor Program.
The TRD addresses the elements and activities intended to ensure
that procured engineered equipment and services meet quality
comitments contained in STP procurement, quality assurance, and
i
licensing documents. One hundred sixty-six purchase orders for
safety-related engineered equipment will be reviewed in accordance
with the TRD. This review is expected to be completed by December 1,
1981.
This matter will be reviewed during future IE inspections.
-4-
,
.
..
d.
Safety Injection System Emergency Sump Piping Design
On October 25, 1979, HL&P notified the NRC of a design deficiency-
in the Safety Injection System (SIS) containment emergency sump
piping design. .It was determined that the one quarter inch seal
weld between the sump liner and the process pipe was not sufficient
to carry the design loads.
If left uncorrected, failure of the weld
joint would create stresses in the associated recirculation isolation
valve that would exceed the design criteria and could adversely affect
the operation of the valve.
This deficiency will be corrected by anchoring the process pipe
to the guard pipe outside the Containment Building and adding an
expansion joint to the process pipe inside the emergency sump.
Recurrence control will involve reverification of designs issued
prior to January 1979, when a revised design. verification procedure
was implemented.
The licensee submitted a final report on June 30, 1980, and provided
additional information on August 22, 1980, in response to a request
by the NRC.
.
This matter will remain open pending further review by IE durina a
!
future inspection.
4.
Review of B&R Corrective Action in Response to HL&P Audit Findings
During review of records of HL&P Audit BR-26 of the B&R QA Department
conducted in June 1979, the NRC inspector observed that a Significant
Discrepancy (3s defined in HL&P procedures) identified during that
audit had not been corrected despite repeated efforts by HL&P OA to
resolve the problem. Correspondence in the-audit file indicated that,
although six separate corrective action responses had been received
from B&R, four of which were acceptable, none of the acceptable
responses were satisfactorily implemented by B&R, On February 23,
1981, this matter was referred by HL&P QA to upper HL&P management
for resolution.
This matter is considered unresolved pending review of the adequacy
of B&R corrective action during future IE inspections.
5.
Unresolved Items
,
Unresolved items are matters about which more information is required
in order to ascertain whether they are acceptable items, violations,
or deviations. One unresolved item disclosed during the inr#ection
is discussed in paragraph 4.
-5-
.
. ,
_
-.
.
i
- '
.;
r?
'().
- *
ll
6.
Exit Interview.
v.
The NRC inspector met with licensee representatives (denoted in
paragraph 1) on March 27, 1981. The NRC inspector sumarized t'.e
purpose and ccope of the inspection aild the findings.
-
'
.l
!
l
l
i
!
,
!
!
-6-
.
.
-
__
- .
-.
_
-_-___ -_
..
. .
.
._