ML17275A453
| ML17275A453 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 03/18/1980 |
| From: | Renberger D WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| To: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| G2-80-68, GO2-80-68, IEB-80-03, IEB-80-3, NUDOCS 8007250354 | |
| Download: ML17275A453 (3) | |
Text
Washington Public Power Supply System A JOINT OPERATING AGENCY 4~t J(j RECE<yEO P<QQ Qg I ~ Ppo K
- p. 0. Box 988 3000 Gso. wisH<Noro<<w*r R<CH<.ANo. w*sH<RoroN 99352 p<<ONE 0
March 18, 1980 G02-80-68 Docket No. 50-397 Nuclear Regulatory Commission Region V
1990 North California Boulevard Suite 202, Walnut Creek Plaza Walnut Creek, California 94596 Attention:
Mr.
R.
H. Engelken, Director
Subject:
WPPSS NUCLEAR PROJECT NO.
2 DOCKET NO. 50-397, CPPR-93 LOSS OF CHARCOAL FROM STANDARD TYPE II 2-INCH TRAY ADSORBER CELLS
Reference:
Dear Mr. Engelken:
The only 2-inch charcoal tray adsorber cells used in WNP-2 safety-related air filtration systems are contained in two emergency filter units which serve the main control room area during accident conditions.
These filter units are manufactured by the Farr
- Company, Los Angeles, California.
The charcoal adsorber cells'ssemblies for the control room emergency filter units are Farr Model NPP-1 with three cell assemblies included in each filter unit.
Two-2 inch X 24-inch X 26.75-inch charcoal trays make up each cell assembly.
Retaining screens of the adsorber trays are located inside the channel frame members and are attached to the frames with spot welds spaced approximate-ly one inch apart.
Additionally, the charcoal load will tend to force the retaining screens against the channel frames.
Visual inspection of the adsorber cells which will be installed in the control room emergency filter units is not possible since delivery of the cells has not been made.
Deficiencies noted after the adsorber cells have been received will be reported in accordance with the requirements of 10 CFR 50.55(e).
8PPQR5 S 1 Q
RH Engelken Page 2
If you have any questions, please feel free to contact me.
Very truly yours,"
DLR:HLB/dac cc:
JJ Verderber-B8R NY RC Root
-B&R Site JG Davis
-NRC Mash.
D.C.
ND Lewis
-EFSEC Olympia JR Lewis
-BPA MNP-2 FILES--
D. L.
RENBERGER Assistant Director Technology