ML20011A985
| ML20011A985 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 10/22/1981 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8111030462 | |
| Download: ML20011A985 (2) | |
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TENNESSEE VALLEY AUTHORIT'(j CH ATTANOOGA. TENNESSEE 374of
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~ October 22, 1 1
BLRD-50-438/81 BLRD-50-439/81-33 Mr. James P. O'Reilly, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Region II - Suite 3100 101 Marietta Street Atlanta, Georgia 30303
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - GENERIC IMPLICATIONS OF FAILURE TO IMPLEMENT DESIGN CRITERIA IN DESIGN DRAWINGS - BLRD-50-438/81-30, BLRD-50-439/81 SECOND INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector R. V. Crlenjak on April 1, 1981, in accordance with 10 CFR 50.55(e) as NCR BLN QAB 8101. This was followed by our first interim report dated May 1, 1981. Enclosed is our second interim report. We expect to submit our next report by January 26, 1982.
If you have any questions concerning this matter, please get in touch with R. H. Shell at FTS 857-2581.
Very truly yours, TENNESSEE VALLEY AUTHORITY
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L. M. Mills, Manager Nuclear Regulation and Safety Enclosure cc:
Mr. Victor Stello, Jr., Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission ko>f 7
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4 ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 GENERIC IMPLICATIONS OF FAILURE TO IMPLEMENT DESIGN CRITERIA IN DESIGN DRAWINGS BLRD-50-438/81-30, BLRD-50-439/81-33 10 CFR 50.55(e)
SECOND INTERIM REPORT Description of Deficiency Various electrical functional control logic diagrams (FCLD's) and other design drawings do not adequately reflect design criteria requirements.
Nanconformance reports are initiated when a drawing discrepancy is found, and as a result there have been several nonconformances written (BLN BLP 8003, BLN BLP 8010, BLN BLP 8101, and BLN BLP 8106). These design discrepancies are discovered when reviewing designs to make revisions.
Interim Progress Bellefonte Design Project has submitted the following schedule of FCLD's to be reviewed including start and finish date. This list is implemented in the critical path management (CPM) scheduling:
4 Activity Number System Start Finish 2GWO900CD HP heater & vents sys 01JUN81 03DEC81 2GWO900KE ERCW 26JAN81 21APR81 2GWO900CV Condenser vacuum (off-gas) sys 01JUN81 07SEP81 2GWO900RF HP fire protection sys 010CT80 29MAY81 2GWO900VA Aux bldg trained areas & vent sys 07APR81 23JUL81
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2GWO900VE Aux bids trained area air cond 30dAR81 07JUL81 2GWO900VH Reactor bldg vent & purge sys 14APR81 10AUG81 2CWO900VK Control bldg ESF environmtl cond 010CT80 19APR81 20WO900NV Makeup and purification sys 02 MAR 81 10SEP81 2GWO900ND Decay heat removal sys 15DEC80 16JUL81 2GWO900KC Component cooling system 01JUL81 25SEP81 2GWO900KD Control rod drive clg wtr sys 01JUN81 11AUG81 2GWO900VC Aux bldg common area environmental 02FEB81 02NOV81 control sys Errors found during this review will be documented in accordance with the requirements of Division of Engineering Design engineering procedure EN DES-EP 1.26, "Nonconformances - Reporting and Handling by EN DES."
Revisions made to design drawings as a result of this design review will be coordinated with the responsible TVA organizations.
Evaluation of results obtained from reviewing the above list will determine any' additional design review needed. Presently there are no generic implications concerning other TVA plants.
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