3F0485-20, Special Rept 85-01:on 850317,during Performance of Refueling Interval Surveillance,All Three Triaxial Peak Accelographs Required by Tech Specs Discovered Inoperable.Cause Undetermined.Accelographs Will Be Repaired

Special Rept 85-01:on 850317,during Performance of Refueling Interval Surveillance,All Three Triaxial Peak Accelographs Required by Tech Specs Discovered Inoperable.Cause Undetermined.Accelographs Will Be Repaired

ML20128C297
Person / Time
Site:	Crystal River
Issue date:	04/26/1985
From:	Westafer G FLORIDA POWER CORP.
To:	Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
3F0485-20, 3F485-20, 85-01, 85-1, RO-85-1, NUDOCS 8505280246
Download: ML20128C297 (2)

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... 0.. g, Power CORPOR ATION April 26,1985 3F0485-20 Dr. J. Nelson Grace Regional Administrator, Region II Office of Inspection & Enforcement U.S. Nuclear Regulatory Commission 101 Marietta Street N.W., Suite 2900 Atlanta, GA 30323

Subject:

Crystal River Unit 3 Docket No. 50-302.

Operating License No. DPR-73 Special Report No. 85-01

Dear Sir:

Enclosed is Special Report No. 85-01, which is submitted in accordance with Technical Specification 6.9.2(b).

Should there be any questions, please contact this office.

Sincerely, ,

G. R.'Westafer Manager, Nuclear Operations s

Licensing and Fuel Management AEF/feb Enclosure cc: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555 8505200246 850426 2 PDR ADOCK 0500 S

coe o$ - 2D GENERAL OFFICE 3201 Thirty. fourth street south.P.O. Box 14042, st. Petersburg, Florida 33733 813

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, _ . N SPECIAL REPORT 85-01 On March =17,1985, ' Crystal River Unit 3 was. In Mode. 6 in preparation 'for refueling. At 0930, all three triaxial peak accelographs required by Technical Specification 3.3.3 were discovered inoperable during performance of the refueling interval surveillance. The three triaxial accelographs found inoperable were:

1. - 140'0" at top of Reactor (longitudinal and transverse directions not marking '

film).

12. : 175'6" piping at top on Steam Generator (vertical and transverse directions

.not marking film).

3. 166'8" top of Borated Water. Storage Tank (vertical direction not marking film). -

- Due to the removal of the Reactor Vessel Head, which occurred at approximately 0500 on March 22, 1985, repair efforts for the Reactor Vessel Head accelograph will be delayed until after the head has been reinstalled. The repair of this accelograph is scheduled to be completed by July- 18, 1985. . The repairs of the triaxial accelographs at the top'of the Steam Generator piping and the top of the Borated Water- Storage : Tank . havel ,been delayed due to planned maintenance / modification activities being performed on _these components. The repairs of these accelographs are scheduled to be completed by May 24,1985.

The cause of the failure of all three triaxial peak accelographs could not be determined. A review of past failure indicates only one previous failure of one accelograph (occurred in 1981). _ All three accelographs will be repaired and their performance monitored for any future failures.

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