United States Nuclear Regulatory Commission - Protecting People and the Environment


ACCESSION #: 9711210064



memorandum



                                             November 14, 1997

                                             Indian Point Station



TO:       Paul Kinkel

          Vice President

          Nuclear Power



FROM:     Charles W.  Jackson

          Manager

          Nuclear Safety & Licensing



SUBJECT:  Preliminary Evaluation per 10 CFR Part 21 Report of Condition

          Defective MOV T-drains



A preliminary evaluation has been performed to determine if the condition

reported could create a substantial safety hazard and is thereby

reportable under 10 CFR Part 21.



The results of this preliminary evaluation indicate that the subject

condition:



     X    is reportable            is not reportable



The preliminary evaluation justifying this determination is attached.



                         Accepted:

                                   Designated Responsible Company Officer



                         Date:               Time:





November 17, 1997

Indian Point Unit No. 2

Docket No. 50-247



Part 21 - Defective MOV T-drains



Environmentally qualified MOV's to be operable, must have T-drains

installed to relieve moisture, buildup in a harsh environment following a

major accident.



While inspecting the spare motor, prior to installation, on MOV 856D, an

EQ MOV, it was found to have defective T-drains.  This was observed as an

apparent manufacturer's defect.  The T-drain, supplied by Limitorque

Inc., Lynchburg, Virginia, was not drilled through and would act as a

pipe plug rather than as a drain.  This motor had been removed from the

spare actuator for MOV 536.  The actuator had been removed from service

in 1993, rebuilt, and stored for future use.  The defective T-drains have

been removed and properly drilled ones were installed.  All the other EQ

MOV's were inspected and several were found to have similar defective T-

drains; these were also removed and properly drilled T-drains have been

installed on all EQ MOV's.



A written report of this condition will be prepared and submitted to the

NRC per 10CFR21.21.





POWER REACTOR                                 EVENT NUMBER: 33273

FACILITY: INDIAN POINT   REGION: 1           NOTIFICATION DATE: 11/17/97

UNIT: [2] [ ] [ ]        STATE: NY           NOTIFICATION TIME: 17:41[ET]

RX TYPE: [2] W-4-LP,[3]                      EVENT DATE: 11/17/97

     W-4-LP                                  EVENT TIME: 16.45(EST)

NRC NOTIFIED BY: MICHELE SAVINO              LAST UPDATE DATE: 11/17/97

HQ OPS OFFICER:  DICK JOLLIFFE

                                                  NOTIFICATIONS

EMERGENCY CLASS: NOT APPLICABLE

10 CFR SECTION:                              JACK McFADDEN,   R1      RDO

CDEG 21.21(c)(3)(i) DEFECTS/NONCOMPLIANCE

                                             MILTON SHYMLOCK, R2      RDO

                                             JOHN MADERA, R3          RDO

                                             JOSEPH TAPIA, R4         RDO

                                             VERN HODGE               NRR



UNIT SCRAM CODE     RX CRIT INIT PWR INIT RX MODE CURR PWR  CURR RX

MODE

 2     N               N        0    COLD SHUTDOWN   0      COLD SHUTDOWN





                               EVENT TEXT



- 10CFR21 REPORT OF DEFECTIVE T-DRAINS ON ENVIRONMENTALLY QUALIFIED

MOV's



INDIAN POINT UNIT 2 IS IN MODE 5 (COLD SHUTDOWN) IN A MAINTENANCE

OUTAGE.



WHILE PREPARING TO INSTALL A SPARE MOTOR ON ENVIRONMENTALLY

QUALIFIED

(EQ) MOTOR OPERATED VALVE (MOV) #MOV-856D, THE LICENSEE DISCOVERED

THAT

THE MOV HAD A DEFECTIVE T-DRAIN.  IN ORDER FOR AN EQ MOV TO BE

OPERABLE,

THE VALVE MUST HAVE A T-DRAIN INSTALLED TO RELIEVE MOISTURE BUILDUP

IN A

HARSH ENVIRONMENT FOLLOWING A MAJOR ACCIDENT.



THE T-DRAIN, SUPPLIED BY LIMITORQUE, INC, LYNCHBURG, VA, WAS NOT

DRILLED

THROUGH AND WOULD ACT AS A PIPE PLUG RATHER THAN AS A PIPE DRAIN. 

THE

LICENSEE OBSERVED THIS CONDITION TO BE AN APPARENT MANUFACTURER'S

DEFECT.



THE SPARE MOTOR HAD BEEN REMOVED FROM THE SPARE ACTUATOR FOR

#MOV-536

WHICH HAD BEEN REMOVED FROM SERVICE IN 1993, REBUILT, AND STORED FOR

FUTURE USE.



THE LICENSEE INSPECTED ALL EQ MOVs AND FOUND SEVERAL WITH A SIMILAR

DEFECTIVE T-DRAIN.  THE LICENSEE HAS REMOVED ALL DEFECTIVE T-DRAINS

AND

INSTALLED PROPERLY DRILLED T-DRAINS ON ALL EQ MOVs.



THE LICENSEE PLANS TO PREPARE A WRITTEN REPORT OF THIS CONDITION AND

SUBMIT IT TO THE NRC PER 10CFR21.21.



THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR.





*** END OF DOCUMENT ***



Page Last Reviewed/Updated Thursday, March 29, 2012