ML20031C463
| ML20031C463 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 09/24/1981 |
| From: | FLORIDA POWER CORP. |
| To: | |
| Shared Package | |
| ML20031C460 | List: |
| References | |
| TAC-46973, NUDOCS 8110070175 | |
| Download: ML20031C463 (1) | |
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TECHNICAL SPECIFICATION CHANGE REQUEST NUMBER 75 (APPENDIX A)
Replace page 3/41-19 with page 3/41-19 attached.
PROPOSED CHANGE Add a one-time extension of the surveillance interval for Specification 4.1.3.1.2 as Footnote 1.
Extension would allow continued operation of the unit until the refueling outage without performing the control rod exercise test.
REASON FOR PROPOSED CHANGE The control rod exercise test method requires taking the unit into manual control.
RCS pressure oscillations while in manual control are considered to be detremental to the somewhat degraded reactor coolant pump 3Al seals.
SAFETY ANALYSIS The purpose of the control rod exercise test is to verify that the control rods are movable and are, therefore, free from mechanical interference. This assures that rod insertion via the RPS will occur should it be required.
It is condidered highly unlikely that any event requiring RPS termination would occur in the less than 3 days until the unit is scheduled for refueling.
It is further.onsidered unlikely that, should the RPS be challenged, any mechanical interference would be observed. Additionally, considerable excess shutdown margin exists so that failure of several rods to insert would be required to cause loss of safety function.
No anomalors results were observed during the last monthly test, August 18, 1981, or during cycle operations / testing in general.
The potential for rod insertion problems when compared to observed seal degrada-tion is negligible. Continued ope *ation without performing the exercise test is not considered to cause any potential threat to public health and safety.
8110070175 810924 PDR ADOCK 050003 2 P
A