ML20137M280

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Proposed Change to Tech Specs,Removing Sections 4.2.7,4.2.8, Table 4.2-1 & Supporting Bases Re Structural Integrity of RCS Boundary & Reactor Internals
ML20137M280
Person / Time
Site: Arkansas Nuclear Entergy icon.png
Issue date: 09/03/1985
From:
ARKANSAS POWER & LIGHT CO.
To:
Shared Package
ML20137M252 List:
References
NUDOCS 8509130185
Download: ML20137M280 (1)


Text

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  • 4.2.3 The structural integrity of the reactor coolant system boundary shal_1 be maintained at the level required by the original acceptance standards throughout the life of the station. Any evidence, as a result of the tests outlined in the Table 15-261 of Section XI of the code, that defects have developed or grown, shall be investigated.

4.2.4 To assure the structural integrity of the reactor internals throughout the life of the unit, the two sets of main internals bolts (connecting the core barrel to the core support, shield and to the lower grid cylinder) shall remain in place and under tension. This will be verified by visual inspection to determine that the welded bolt locking caps remain in place. All locking.

caps will be inspected after hot functional testing and whenever the internals are removed from the vessel during a refueling or maintenance shutdown. The core barrel to. core support shield caps will be inspected each refueling shutdown.

4.2.5 Sufficient records of each inspection shall be kept to allow comparison and evaluation of future inspections.

4.2.6 Surface and volumetric examination of the reactor coolant pump flywheels will be conducted coincident with refueling or maintenance shutdowns such that during 10 year intervals all four reactor coolant pump flywheels will be examined. Such examinations will be performed to the extent possible through the access ports, i.e., those areas of the flywheel accessible without motor disassembly. The surface and volumetric examination may be accomplished by Acoustic Emission Examination as an initial examination method. Should the results of the Acoustic Emission Examination indicate that additional examination is necessary to ensure the structural integrity of the flywheel, then other appropriate NDE methods will be performed on the area of concern.

Bases The surveillance program has been developed to comply with the applicable edition of Section XI and addenda of the ASME Boiler and Pressure Vessel Code, inservice Inspection of Nuclear Reactor Coolant Systems, as required by 10CFR50.55a, to the extent practicable within limitations of design, geometry and materials of construction.

Amendment No. 22,28,22,# ,77 77 9M 8@ga

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