ML17252B038

Letter Confirming a 05/15/1974 Conversation Concerning Main Steam Area Temperature Switches Being Out of Calibration - Dresden Unit 3

ML17252B038
Person / Time
Site:	Dresden
Issue date:	06/04/1974
From:	Stephenson B Commonwealth Edison Co
To:	James Keppler US Atomic Energy Commission (AEC)
References
Download: ML17252B038 (2)

Text

UNITED STATES ATOMIC ENERGY COMMISSION

DIRECTORATE OF REGULATORY OPERATIONS REGION Ill 799 ROOSEVELT ROAD TELEPHONE GLEN ELLYN, ILLINOIS 60137 (312) 858-2660 A. RO Inspection Report No~

Transmittal Date Distribution: Distribution:

RO Chief, FS&EB RO Chief, FS&EB RO:HQ (5) RO:HQ (4)

DR Central Files L:D/D for Fuels & Materials Regulatory Standards (3) DR Cen.tral Files Licensing (13) RO Files RO Files B. RO Inquiry Report No.

Transmittal Date

Distribution: Distribution:

RO Chief, FS&EB RO Chief, FS&EB RO:HQ (5) RO:HQ DR Central Files DR Central Files Regulatory Standards (3) RO Files Licensing (13)

RO Files

c. Incident Notification From: Commonwealth Edison Co. Docket No. 50-249

.

(Licensee & Docket No. (or License No.)

Transmittal Date June 4, 1974 Distribution: Distribution:

RO Chief, FS&EB RO Chief, FS&EB

---

RO:HQ (4)

Licensing (4)

RO:HQ (4)

L:D/D for Fuels & Materials nR Central tiles DR Central Files RO Files RO Files

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GLEN ELLYN IL 60137 *

SUBJECT:

DPR-25 DRESDEN NUCLEUR POWER STATION UNIT 3.

THIS WILL CONFIRM A CONVERSATION WITH F MAURA OF YOUR OFFICE

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AT 1045 HOURS THIS DATE CONCERNING MAIN STEAM AREA TEMPERATURE Sw!TCHES BEING OUT OF CALIBRATIN 5/15/75 THE CALIBRATION OF THESE SWITCHES WHICH IS REQUIRED EACH REFUELING OUTAGE WAS COMPkETED BY THE INSTRUMENT MACHINES! ALL 16 OF THE SWITCHES WERE FOUND TO HAVE SET POINTS GREATER THAN THE 200 DEGREE FARENHEIT ALLOWED BY TABLE 3.2.1 OF THE

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sF-1201 TrE-sHI NIACL SPEC IF !CAT I 0 N. THE SW ITCHES WERE REC AL !BRA TED

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10 TRIP AT 180 DEGREE FARENHEIT PLU OR MIUS 5 DEGREE FARENHEIT L B B STEPHENSON SUPER~NTENL DRESDEN

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'-~* NUCLEUR POWER STA COMMONWELATH EDISON CO R R I MORRIS IL NNNN c

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MAY 2 0 1974 (t) SF-1201 (RS-611)