ML20129H045
| ML20129H045 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 04/05/1985 |
| From: | Parsons R CAROLINA POWER & LIGHT CO. |
| To: | Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| CON-NRC-343, CON-NRC-83-103, CON-NRC-84-333, CON-NRC-85-103, REF-PT21-85, REF-PT21-85-271-000 157, PT21-85-271, PT21-85-271-000, NUDOCS 8506070451 | |
| Download: ML20129H045 (4) | |
Text
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CNLL Carolina Power & Light Company
,we n n.nu blE.dMx9108 didwMl, N.C. 27562 April 5,1985 Dr. J. Nelson Grace NRC-343 United States Nuclear Regulatory Commission Region 11 101 Marietta Street, Northwest (Suite 2900)
Atlanta, Georgia 30323 CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT 1936 - 900,000 KW - UNIT 1 C. H. BETTIS OPERATIORS ON RUSKIN - SUPPLIED HVAC DAMPERS, ITEM 157
Dear Dr. Grace:
Attached is our final report on the subject item which was deemed reportable per the provisions of 10CFR50.55(e) and 10CFR, Part 21, on May 22,1984. With this report, Carolina Power and Light Company considers this matter closed.
If you have any questions concerning this matter, please do not hesitate to contact me.
Yours very truly, R. M. Parsons Project General Manager Completion Assurance Shearon Harris Nuclear Power Plant RMP/bs Attachment cc:
Messrs. G. Maxwell /R. Prevatte (NRC-SHNPP)
Mr. R. C. DeYoung (NRC) 451 95040 8506070.oen o,,o A
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-q CAROLINA POWER &' LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT UNIT 1 FINAL REPORT G. H. BETTIS OPERATORS ON RUSKIN-SUPPLIED HVAC DAMPERS NCR-83-103 NCR-84-333 ITEM 157 March 29, 1985 REPORTABLE UNDER 10CFR21 AND 10CFR50.55(e)
IBMD-DISC 9-OS4
SUBJECT:
Shearon Harris Nuclear Power Plant Unit 1 G. H. Bettis operators, Purchase Order NY-435205 on Ruskin-supplied HVAC dampers ITEM :
The following demper tag numbers are affected by this condition. Dampers with an asterisk (*) were added later due to additional research by the vendor.
AR-D3-1 AV-D78SA-1 CV-D5SA-1*
AV-D15SA-1 CV-D7SB-1*
CV-D1SB-1*
FL-D35 SA-1-4 AV-D79SB-1 CV-D4SA-1*
FL-D36SB-1-4 FL-D9SB-1-4 CV-D6SA-1*
FL-D37 SA-1-4 FL-D11SA-1-4 CV-D8SA-1*
FL-D38SB-1-4 FL-D12SB-1-4 CV-D9-1*
AV-D82SA-1 FL-D21SA-1-4 CV-D10-1*
AV-D83SB-1 FL-D22SB-1-4 CV-D11-1*
AV-D36SA-1 FL-D5SB-1-4 CV-D12-1*
AV-D87SB-1 FL-D8SA-1-4 CV-D13-1*
AR-D4-1 FL-D4SA-1-4 CV-D14-1*
AV-D9SA-1 CV-D3SA-1*
CV-D1SA-1*
CB-D2SB-1 CV-D2SB-1*
SUPPLIED BY :
Ruskin Manufacturing Company NATURE OF DEFICIENCY:
The following condition was discovered as a result of some Bettis operators failing a vendor in-house operational test: According to Bettis, some of the internal seals (made of ethylene propylene) in the operators become swollen, apparently due to absorption of the internal lubricant (Mobil Grease 28). This swelling increases friction within the operator. This increased friction may result in increased operator actuation time beyond that required for design conditions.
DATE PROBLEM WAS CONFIRMED TO EXIST:
Based on a copy of a telex from Ruskin to Ebasco dated December 2, 1983 (received approximately December 5, 1983), which indicated a 10CFR21 reportable condition concerning Bettis actuators, the condition was determined to be potentially reportable on December 20, 1983. Also, site-generated NCR-83-103 on December 28, 1983 and NCR-84-333 on February 10, 1984 were issued.
DATE PROBLEM REPORTED:
Mr. K. V. Hate' notified the NRC (Mr. A. Hardin) on December 21, 1983 of a potentially reportable item per 10CFR21 and 10CFR50.55(e).
IBMD-DISC 9-OS4
7 li DATE PROBLEM REPORT _ED (CONT 'D) -
On May 22, 1984, CP&L (Mr. K. V. Hate') notified the NRC (Mr. D. Myers) that the December 21, 1983 potentially reportable item had been evaluated and found to be reportable per 10CFR21 and 10CFR50.55 (e).
SCOPE OF
. PROBLEM:
The following safety-related HVAC systems / areas are affected:
A.
RAB Electrical Penetration Area B.
' C.
RAB Mechanical Penetration Area D.
RAB H&B Penetration Area E.
RAB Charging Pump Area
.F.
RAB Valve Callery G.
RAB Pipe Tunnels and Charging Pump Areas Exh.
System H.
FHB Normal Exhaust System I.
FHB Normal Supply System J.
FHB Loading Area K.
Containment Fan Cooler System SAFETY IMPLICATION:
Should the dampers fail to operate within the required actuation time,-areas may not properly isolate and airborne contaminants may not be controlled as intended.
REASON DEFICIENCY IS REPORTABLE: Chould the dampers fail to operate within the design time limit during anticipated accident conditions, the radiological releases may exceed the 10CFR100 guidelines.
CORRECTIVE ACTION:
Dampers affected have been reworked by replacing the seals and lubricant with the recommended replacement seals and lubricant (E. P. Seals and Molykote 44).
Testing and documentation required to close this item is now complete.
PREVENTIVE MEASURES:
Ruskin, in conjunction with G. H. Bettis, recensends that future nuclear qualified actuators be built with Molykote 44 lubricant and EP seals.
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