ML20028D905

Proposed Tech Spec Changes Re Preservice Insp of Steam Generator Tubes

ML20028D905
Person / Time
Site:	Davis Besse
Issue date:	01/12/1983
From:	TOLEDO EDISON CO.
To:
Shared Package
ML20028D897	List: ML20028D894 ML20028D901 ML20028D905
References
NUDOCS 8301200073
Download: ML20028D905 (2)

Text

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REACTOR COOLANT SYSTEM

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SURVEILLANCE REQUIREMENTS *(Continued)

9. Preserive Inspection means an inspection of the full length of each tube in each steam generator performed

, by eddy current techniques prior to service to establish a baseline condition of the tubing. This inspection

, shall be performed prior to initial POWER OPERATION using the equipment and techniques expected to be used during subsequent inservice inspections.

, b. The steam generator shall be determined OPERABLE after completing the corresponding actions (plug all tubes exceeding the plugging limit and all. tubes containing through-wall cracks) required by Table 4.4-2 4.4.5.5 . Reports

a. Following each inservice inspection of steam generator tubes, the number of tubes plugged in each steam generator shall be reported to the Commission within 15 days,

b. The complete results of the steam generator tube inservice inspection shall be submitted on an annual basis in a report for the period in which this inspection was completed. This report shall include:

1. Number and extent of tubes inspected.

2. Location and percent of wall-thickness penetration for each indication of an imperfection.

3. Identification of tubes plugged, i

c. Results of steam generator tube inspections which fall into i' Category C-3 and require prompt notification of the Commission shall be reported pursuant to Specification 6.9.1 prior to resumption of plant operation. The written followup of this report shall provide a description of investigations conducted to determine cause of the tube degradation and corrective measures taken to prevent recurrence.

l 4.4.5.6 The steam generator shall be demonstrated OPERABLE by verifying steam generat r lev t within limits at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

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DAVTS-BESSE, UNIT 1 3/4 4-10 f Amendment No. 8,?,1 830120g Oy3 p

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4.4.5.7 When steam generator tube inspection is performed as per Section 4.4.5.2, an additional but totally separate inspection shall be performed on special interest peripheral tubes in the vicinity of the secured internal auxiliary feedwater header.

This testing shall only be required on the steam generator selected for inspection, and the test shall require inspection only between the upper tube sheet and the 15th tube support plate. The tubes selected for inspection shall represent the entire circumference of the steam generator and shall total at least 150 peripheral tubes.

4.4.5.8 Visual inspections of the secured internal' auxiliary feedwater header, header to shroud attachment welds, and the external header thermal sleeves shall be performed on each steam generator through the auxiliary feedwater injection penetrations.

These inspections s. hall be performed during the third and fourth refueling outages and at the ten year ISI.

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