ML17289A812
| ML17289A812 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 08/16/1992 |
| From: | Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Miller L NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| NUDOCS 9208260304 | |
| Download: ML17289A812 (4) | |
Text
(4~gR Rjcy P0 Cy 0 Q
<<**+"
Docket No. 50-'397 UNITED STATES NUCLEAR REGULATORYCOMMISSION REGION Y 1450 MARIALANE WAI NUT CREEK. CAUFORNIA94596-5368 AUG >6 egg~
MEMORANDUM FOR:
L. F. Hiller, Jr.,
Team Leader WNP-2 Augmented Inspection Team FROM:
SUBJECT:
J.
B. Hartin, Regional Administrator AUGMENTED INSPECTION TEAM CHARTER POWER OSCIl LATIONS AT WASHINGTON NUCLEAR PLANT 2 After being briefed on the August 15, 1992 power oscillation event at Washington Nuclear Plant 2 (WNP-2),
NRC senior management determined that an Augmented Inspection Team (AIT) inspection should be. conducted at MNP-2 'to determine the circumstances and evaluate the significance of the event.
You have been designated as the AIT Team Leader.
Enclosed is the charter for the AIT which delineates the scope of this inspection.
The inspection is to
, be conducted in accordance with NRC Manual Chapter
- 0513, Inspection Manual Chapter
- 0325, and Inspection Procedure 93800.
Enclosure:
(1)
AIT Chapter CC:
J. Taylor, EDO J. Sniezek, EDO W. Bateman, EOO T. Hurley, NRR H. Virgilio, NRR B. Boger,NRR C. Rossi, NRR A. Chaffee, NRR T. quay, NRR F. Hiraglia, NRR W. Russell, NRR iy/
in Regional Adm istrator J.
Richardson, NRR A. Thadani, NRR B. Grimes, NRR J.
- Roe, NRR E. Jordan, AEOD D. Ross, AEOD B. Faulkenberry, RV G. Cook, RV R. Scar ano, RY K. Perkins, RV D. Kunihiro, RY 92pa~~p p5QQQ397
- 4. papain PDR
@DOCK p
'iE-/d
lil
'J t
fi
AUGMENTED INSPECTION TEAN CHARTER WASHINGTON NUCLEAR PLANT 2 POWER OSCILLATIONS ON AUGUST 15, 1992 The Augmented Inspection Team (AIT) is to perform an inspection to accomplish the following:
1.
Develop a complete sequence of events and description of the power oscillations which occurred on August 15, 1992.
In addition, develop a
sequence of events and description of the plant reactivity anomalies which occurred during the plant startup from the most r'ecent refueling outage.
2.
Identify those equipment failures, human performance errors, procedural deficiencies, and quality assurance deficiencies that contributed to these events.
In making this analysis, specifically include the following:
a.
Determine what procedures the licensee had implemented to avoid and mitigate power instability, and assess the adequacy of these procedures.
b.
Review the core fuel loading and rod patterns in effect during the event.
Review the most recent core reload safety analysis to determine whether the predicted areas of flow instability were properly calculated.
Assess whether these areas were contributing causes for the events.
c.
Review the operating status of the recirculation flow control system.
Assess whether the operation of the components in this system were contributing causes for the events.
d.
Review the operating status of the turbine control system.
Assess whether the operation of the components in this system were contributing causes for the events.
e.
Assess the operating crew's performance during and subsequent to each event.
6.
Evaluate the effectiveness of the licensee's investigation of these events.
7.
Determine the root causes of the power oscillation event, from equipment, personnel, and organizational perspectives.
8.
Assess the adequacy of the licensee's notification of other agencies of both of these events.-
Inspection Procedure 93800 "Augmented Inspection Team Implementing Procedure" and Hanual Chapter
- 0325, "Augmented Inspection Team" -provide additional administrative guidance which will be used by the AIT.
f