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MONTHYEARML19320B5301980-06-12012 June 1980
Forwards IE Bulletin 80-14, Degradation of BWR Scram Discharge Vol Capability. Written Response Required
Project stage: Other
ML19336A4181980-08-27027 August 1980
Responds to Items 1 & 2 of IE Bulletin 80-17,Suppl 3, Failure of Control Rods to Insert During Scram at Bwr. Procedures Implemented to Require Listed Functional Tests After Each Scram Event Prior to Return to Power
Project stage: Other
ML19343A3771980-09-11011 September 1980
Informs NRC That Acceptance Criteria for All Startup Physics Tests Have Been Met
Project stage: Request
ML20008E0511980-09-11011 September 1980
Responds to IE Bulletin 80-17,Suppl 1, Failure of 76 of 185 Control Rods to Fully Insert During Scram at Bwr. Updates Status of Planned Installation of Continuous Level Monitoring of Scram Discharge Vol
Project stage: Other
ML19338G0501980-10-21021 October 1980
Proposed Changes to Tech Specs 3.3.C,4.3.C & Tables 3.2.C & 4.2.C Re Scram Discharge Vol Vent & Drain Surveillance & Control Rod Block Scram Discharge Vol Limit Switches
Project stage: Request
ML19338G0281980-10-21021 October 1980
Application for Amend of License DPR-46,changing Tech Specs 3.3.C,4.3.C & Tables 3.2.C & 4.2.C,in Response to IE Bulletin 80-14, Degradation of BWR Scram Discharge Vol Capability. Class III Fee Encl
Project stage: Request
ML19353A2671980-11-24024 November 1980
Notifies of Installation of Equipment to Meet Requirements of NRC 801002 Confirmatory Order Re Monitoring Scram Discharge vol.Float-type Level Switches & Ultrasonic Equipment Installed.Description Encl
Project stage: Other
ML20003B3911981-01-0909 January 1981
Order for Mod to License DPR-46,designing Automatic Dump Sys to Be Independent of Air Pressure Instrumentation for Manual Scram
Project stage: Other
ML20041G3411982-03-0404 March 1982
Amend 77 to License DPR-46,changing Scram Discharge Vol Vent & Draining Valve Surveillance & Limiting Conditions
Project stage: Other
ML20041G3481982-03-0404 March 1982
Notice of Issuance & Availability of Amend 77 to License DPR-46
Project stage: Other
ML20041G3441982-03-0404 March 1982
Safety Evaluation Supporting Amend 77 to License DPR-46
Project stage: Approval
1980-08-27
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STATE LQA8000431 August 27, 1980 Mr. Karl V. Seyfrit, Director U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region IV 611 Ryan Plaza Drive Suite 1000 Arlington, Texas 76011
Subject:
IE Bulletin No. 80-17, Supplement 3 Failure of Control Rods to Insert During a Scram at a BWR
Dear Sir:
This letter is written in response to items 1 & 2 of Supplement 2 to IE Sulletin.No. 80-17.
1.
Cooper Nuclear Station's scram discharge volumes are connected to the instrument voleme by two inch piping. We have procedures in effect that:
Require an immediate manual scram on low control rod drive air a.
pressure at 10 PSI above the opening pressure of the scram outlet valves, b.
Require an immediate manual scram in the event of:
1)
Multiple rod drift alarms 2)
A marked increase in the number of control rods with high temperature alarms 2.
We have implemented procedures to require a functional test with water of the instrument volume level alarm. rod block, and scram switches af ter each scram event before returning to power.
i soloca o 06
!
