ML19309B293
| ML19309B293 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 03/17/1980 |
| From: | Richard Bright FLORIDA POWER CORP. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| IEB-80-03, IEB-80-3, NUDOCS 8004040010 | |
| Download: ML19309B293 (2) | |
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tv Mr. J. P. O'Reilly Director U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement Suite 3100 101 Marietta Street Atlanta, GA 30303
Subject:
Crystal Riyer Unit 3 Docket No. 50-302 Operating License No. DPR-72 1.E. Bulletin 80 LOSS OF CHARC0AL FROM STANDARD Type II, 2 INCH, TRAY ADSORBER CELLS
Dear Mr. O'Reilly:
Enclosed is our response to I.E.Bulletin 80-03.
Please contact this office if you require any additional discussion concerning our response.
Very truly yours, FLORIDA POWER CORPORATION R. M. Bright Acting Manager Nuclear Support Services RMBemhF08D3 r
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General Office 320 Thirty-fourin street soutn. P O Box 14042. St Petersburg. Florida 33733 e 813-866-S151 8004040010
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RESPONSE TO I.E. BULLETIN NO. 80-03 LOSS OF CHARC0AL FROM STANDARD TYPE II, 2 INCH, TRAY ADS 0RBER CELLS Control Complex Emergency Ventilation System:
This system was examined per the appropriate section of SP-186 (Control Room Emergency Ventilation System Testing).
This proce-dure is based on ANSI N510-1975 Section 5.
No degradation was found in the housings or cells.
Auxiliary Building Exhaust Filters:
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This system is divided into four separate banks.
Two of the four banks were inspected per SP-187 ( Auxiliary Building Ventil ation Exhaust System Testing), which is based on ANSI N510-1975.
Only two of the four banks were examined because examining all banks-would have required an extended shutdown of the auxiliary building ventilation.
This would have resulted in high airborne activity levels and building evacuation.
It is felt that since no deficien-cies were found in the filters inspected in this or any other sys-tem, this inspection was adequate.
Rractor Building Purge System:
Ti e charcoal cells in this system were replaced on February 5, 1980.
This is one day before the date of the bulletin.
During filter repl acement, housings were inspected and no deficiencies were found.
After replacement was complete, applicable parts of SP-185 (Reactor Building Ventilation Exhaust System Testing) were performed as a post-maintenance test.
This included an inspection based on ANSI N510 Section 5, and a leak test based on ANSI N510 Section 12.
No deficiencies were found in inspection or testing.
Two vendors have supplied filter cells to CR-3.
They are Farr Co. and Mine Safety Appliances Co.
Construction of these cells is slightly dif-ferent than those addressed in the bulletin.
The screens are fastened to the frame by spot welds, not rivets, and the weld spacing is about one (1) inch as opposed to six (6) inches.
For this reason, we do not feel that our cells are likely to be subject to the type of failure addressed in this bulletin.
RMBemhF08D3