ML20147H682
| ML20147H682 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 03/04/1988 |
| From: | Crutchfield D Office of Nuclear Reactor Regulation |
| To: | Kirsch D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| Shared Package | |
| ML20147H688 | List: |
| References | |
| NUDOCS 8803090037 | |
| Download: ML20147H682 (2) | |
Text
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March 4, 1988 Docket No. 50-528, 50-529 DISTRIBUTION and 50-530 c6%
NRC & Local PDRS MEMORANDUM FOR:
Dennis Kirsch Director PDV Reading Divison of Reactor Safety tod Projects MLicitra Region Y JLee GHolahan FROM:
Dennis M. Crutchfield, Director Division of Reactor Projects - III, IV, Y and Special Projects Office of Nuclear Reactor Regulation
SUBJECT:
EVALUATION OF JC0 FOR PALO VERDE UNIT 1. DATED F.dRUARY 25, 1988 This memorandum confirms the telephone discussions held on March 2, 1988 of NRR (your staff (W. Wagner, T. Pelich and G. Fiore111) and representatives between E. Licitra, L. Kopp and A. Nasciantonio) regarding the subject JCO.
During the discussion we agreed that, based on the information provided with the February 25, 1988 letter, continued operation of Palo Verde Unit I presents no undue risk to public health and safety.
We have also received the licensee's letter of March 2, 1988 which confirms the information provided by T. Polich during the call regarding the source of the ball bearing found in the control rod thir.ble, original signed by Dennis M. Crutchfield Director Division of Reactor Projects - III,
!Y, Y and Special Projects Office of Nuclear Reactor Regulation ec:
G. Holahan G. Knighton T. Marsh W. Hodges L. Kopp A. Masciantonio E. Licitra R. Pate S. Richards W. Wagner T. Polich CONTACT:
M. Licitra DRSP/NRR 492-1352 0FC :UR5P/PDV
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MEMORANDifM FOR: George Knighton, Director Profect Directorate V Division of Reactor Projects !!!, IV, V and Special Projects FROM:
M. Wayne Hodges, Chie' Reactor Systems Branch Division of Engineering and Systems Technolooy
SUBJECT:
SAFETY EVALUATION OF PALO VERDE UNIT 1 JUSTIFICATION FOR CONTINUED OPERATION The Reactor Systems Branch has evaluated the Justification for Continued Operation of Palo Verde ifnit 1 in light of the reevnt inability of control element assembly (CEA) number 56 to drop during testina after the first refueling outage. The problem was deteminec to have occurred because of a ball bearing which became lodged in one of the fuel assembly guide tube posts.
The Mechanical Ergineering Branch has also assisted in the evaluation.
Two items of concern to the staff were the ability of the CEAs to scram and the possible cladding damage due to other ball bearings which may have entered the core. The first concern will be evaluated during the upcoming CEA drop tests before power operation. Any appreciable fuel cladding damage should be noticed during surveillance on the specific activity of the primary coolant required by Tech. Specs.
Therefore, based on the infomation and material presented in the attachment to the February 25, 1988 letter from E. E. Van Brunt, Jr. (Arizona Nuclear i
Power Project) to John B. Martin (NRC Pegion V), the staff agrees that the continued operation of Palo Verde Unit 1 presents no undue risk to the public health and safety and should be allowed.
M. Wayne Hodges Chief Reactor Systems Branch Division of Engineering and Systems Technology cc:
A. Thadani E. Licitra CONTACT: L. Kopp X20879
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March 2,1988 Mr. E. E. Van Brunt, Jr.
Executive Vice President. Project Director Arizona Nuclear Power Project P. O. Oox 52034 Phoenix, Arizona 85072 2034
Dear Mr. Van Brunt,
Jr.:
Subject:
Ir. ability of CEA 56 to Drop This is to acknowledge your letter of February 25, 1988, concerning the Justification for Continued Operation (JCO) of Palo Verde Unit 1.
Region V and NRR have reviewed the letter and find that it provides an acceptable justification for Unit 1 operation.
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On the basis of our review, the JC0 and Region Y's understanding of the plants readiness to operate, the NRC has no objection to continued operation of Palo Verde Unit 1.
ncerely.
F John:8. Martin Regional Administrator CC:
T. E. Murley, NRR J. M. Taylor. DE00R0 t
G. W. Knighton, hRR i
E. A. Licitra, NRR /
T. J. Polich, RV t/
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