ML20029C310
| ML20029C310 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 03/21/1991 |
| From: | Woodard J ALABAMA POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9103270148 | |
| Download: ML20029C310 (2) | |
Text
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'Aubama Powce dorn;wiy L s' H
., y a l% 40 ineren Center Parnav:
Post Ottce Box 129$ _
ILmyn0 ham. A!armia as201 E"' leicphone 20b f68 5086L m
Alabamalhver vcee,esm + m oca, March 21, 1991 Fariev Project p g g,g,g g
10CFR2.201 Docket No. 50-364 U.=S. Nuclear Regulatory Commission LAttentions-Document Control Desk
-Vashington,'D.
C.- 20555.
SUBJECT:
Reply.to a Notice of Violation
'J.-M. ftriey Nuclear Plant NRC Inspection of Decembet 29, 1990 - February 13, 1991 RE:
Report Number 50-364/90-36
-Dear Sir
.a This. letter refers t'o' the : violation cited in-the subject inspection -
- report. 4 The violation states:
Technical: Specification 6.8'.1 requires that applicable written procedures; recommended-in Appendix A of-Regulatory Guide (RG) 1.33, Revision-2,-1978Jshall be-established,-implemented and i
. maintained.
~'
Contrary,to:theiabove, complete and detailed writtenLinstructions-
- e vere not_in place-for maintenanceJpersonnel to repair a pressure operatod! relief valve?(PORV).1 On December 31,'1990,= this lack,of;
- complete'and' detailed. instructions,:resulted:in-an-inadvertent automatic actuation of.the PORV at=approximately 1730 psig-rath_er 7
than Lthe recommended opening'setpo. int of approximately 2285' psig.:
-:This' caused atsubsequent RCS depressurization of-approximately-100 psigiduring plant heatup. ; Isolation of the relief path was Lattained.by prompt operator action and'the. closure'of the' i
- associated =PORV block valve.e s
Haintenance;Vork-Request VR-213581,: required that the. valve actuator for PORV 445A, be removed, repaired, reinstalled, and-
~
F returned to service. The instruetions:that were provided -as part of the work request, failed to provide suffid ent guidance to assure.that actuator sprir.g tension"vas properl adjusted.for
-the valve to open at the. recommended setpoint.:
~
- This-isLa' Severity !.evel'IV violation (Supplement _I).
It should be notedithat;the actual PORV: opening setpoint.is 2335 psig-
-andinotn2285 psig as stated in the: violation.
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Admissicn or Denial.
The above violation occurred as described in the subject report.
Reason for Violation 4
This violation was caused by personnel error.
I&C personnel did not adequately
' check the calibration setpoint to ensure proper-PORV operation. A contributing cause vas--that the work sequence of the MVR for removing and reinstalling the actuator did not provide _setpoint information.
?
Corrective Action Taken and Results Achieved Spring tension was. properly-adjusted on PORV 445A.
Corrective Steps To Avoid Further Violations
- 1. 'All I&C personnel-vill be reinstructed to ensure proper calibration and
- setpoints are used :vhen performing maintenance on air operated valve-actuators.
- 2. 'The Daily. Planning Group has been instructed to include detailed
- instructions for removing, reinstalling and calibrating air operated valve
-actuators.-
. 3.
I&C procedure FNP-0-IMP-444.1 has beer, enhence' ' to include instructions. for d
removing, reinstalling'andLcalibrating air operated vsive actuators. The Pressurizer'PORV is included in this reocedure.
LDate of-Full-Compliance 9-
' March'30, 1991 Affirmations:
- I affirm that this response is true and.completeJto.the besi of my knowledge,
'information, and belief. _-Tne information contained-ir. this letter-is not considered ~to-be-of a proprietary nature.
Respectfully submitted, ALABAHA'POVER COMPANY r
~D. Voodard~
-JDV/BHV maf5-18 cct.
-Hr. S.;D..Ebneter
- -Mr. S. T. Hoffman Mr. G..F. Maxwell w
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