ML20154P963
| ML20154P963 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 09/30/1988 |
| From: | Beck J TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| CP-87-064, CP-87-64, TXX-88717, NUDOCS 8810030246 | |
| Download: ML20154P963 (1) | |
Text
b M
MM Log # TXX-88717 File # 10110 C
C 903.3 Ref. # 10CFR50.55(e) 1UELECTRIC wn.=J.c September 30, 1988 U. S. Nuclear Regulatory Commission Attn:
Document Control Desk Washington, D. C.
20555
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET N05. 50-445 AND 50-446 DESIGN BASIS TORNA00 (OBT) ANALYSIS FOR SAFETY-RELATED EQUIPMENT SDAR: CP-87-064 (SUPPLEMENTAL REPORT)
Gentlemen:
On January 20, 1988, TU Electric letter logged TXX-88086 notified you of a deficiency involving the pressure relieving capacity of the tornado venting devices on Units 1 and 2.
Specifically, the existing Design Basis Tornado (DBT) analysis does not include sufficient documentation to show conclusively that safety-related equipment is qualified for the differential pressures (negative pressure transient) expected during the DBT.
The latest report on this issue was logged TXX-88618, dated August 10, 1988.
The purpose of this report is to revise the corrective action implementation schedule for this issue.
The DBT equipment evaluation for Unit 1 (corrective action item 2 of TXX-88086) has been rescheduled for completion by November 30, 1988. A schedule for any Unit I rework which may result from that evaluation will be provided at that time.
The OBT equipment evaluation for Unit 2 and any modifications will be completed prior to fuel load for Unit 2.
Very truly yours, W. G. Counsil By: h d a b y-J4hn W. Beck-Vice President, Nuclear Engineering CBC/mlh c-Mr. R. D. Martin, Region IV Resident Inspectors CPSES (3) 8810030246 880930 M22 PDR ADOCK 05000445 S
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