ML20011A817
| ML20011A817 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 10/28/1981 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8111030249 | |
| Download: ML20011A817 (16) | |
Text
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TENNESSEE VALLEY AUTHORITY I
CH ATTANOOGA. TENNESSEE 374ol 400 Chestnut Street Towea II October 28, 1981 v\\
W Mr. Harold R. Denton, Director
/
C Office of Nuclear Reactor Regulation
=
U.S. Nuclear Regulatory Commission fl0VO 21981* R Washington, DC 20555
,...nume commum
~
Dear Mr. Denton:
~.p..
In the Matter of the
)
Docket Nos. 50-25 P. h Tennessee Valley Authority
)
50-260 50-296 On September 30, 1981, we met with representativts of your staff to discuss the impact of the workload resulting from NRC requirements at Browns Ferry Nuclear Plant. As discussed in this meeting, we have recently completed our review of onsite manpower predictions at Browns Ferry necesaary to meet all current NRC commitments for the next two years. The purpose of our review was to integrate tal the necessary work into a unified program of maximum effort that will in fact minimize safety concerns as promptly as possibl3.
The following is a list of enclosures which provide the resulte of our review. These enclosures were discussed in detail with your staff in the September 30 meeting. - Basis for Schedule Review - Manpower Allocations Before Deferralo Enclo9ure 3 - Effects of Modifications on our Operating Units
- - Criteria Utilized to Develop Proposed Deferments l - List of Commitment Items Scheduled for Completion During the Next Two Years - Cosmitments Proposed for Deferral Beyond the Next Two Years A, 7B & 7C - Proposed Schedule & 9 - Manpower Summary After Deferral 0 & 11 - Effect of the Deferrals on the Next Outages for Units 3 and 2 4-8111030249 811028 PDR ADOCK 05000259 P
pgg An Equal Opportunity Employer
I
)
2 Mr. Harold R. Denton October 28, 1981 As we have previously indicated, the modification requirements at Browns Ferry for the next two years are very extensive and require 9xtremely high manpower levels. The effects of this workload were discussed in detail in the September 30 meeting and are delineated in P iced on this fact and the above described review, we request your a;.., val of our proposal % outlined in Enclosures 7A,.7B, and 7C. We must emphasize that our schedule through October 1983 is already super-saturated. Any new NRC requirements requiring modification completion during this time will require slipping an item already scheduled for completion in this timeframe beyond October 1983 or moving the new requirements out beyond October 1983 Upon receipt of your concurrence, we intend to maintain our schediile with you as a "living document." Our ultimate goal would be to work closely with you to integrate all future NRC requirements into our schedule and provide you w!th quarterly updates of our schedules. New deferments may then be requested based on integrating new NRC requests, commitments, or regulations into our existing schedule.
We will make every possible effort to meet the schedules outlined in the enclosures. However, many things can happen that may impact these schedules. Such things as equipment procurement problems, undefined or changing design scopes, and unit outages could positively or negatively-effect our future schedules. We will inform you of any such problems and q
if necessary we will request schedule adjustments on a case by case 5
basis.
We beliqve that the integrated process described above will be very beneficial to TVA and NRC. Your cooperation in this matter will be greatly appreciated. We will be glad to meet with yot: to discuss-theso matters at your convenience.
Very truly yours, TENNESSEE VALLEY AUTHORITY l)Vl L. M. Mills, Manager Nuclear Regulai,1on and Safety Subscribefl.and sworn to ef e
me t is c28% ay of
_ 1 d
1981.
14l'GM AOddA4 /
' Notary ublic My Commission Expires k
1.
/
Enclosures l
cc: See page 3
n.
. Mr. Harold it. Denton October 28, 1981 cc:(Enclosures):
Mr. Victoc Stello, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC. 20555 Mr. James P. O'Reilly,: Director Office of Inspection and Enforcement -
U.S.-Nuclear Regalatory Commission Region II - Suite 3100 101 Marietta Street i
Atlanta, Georgia 30303 l
.I l
3
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i k
j i
h 5
i
ENCLOSURE 1 BASIS FOR SCHEDULE REVIEW TVA AND NT.C HAVE IDENTIFIED NEGATIVE TREPDS IN SAFELY MANAGING THE AMOUNT OF WORK CURRENTLY BEING PERFORMED
\\
AVAILABILITY OF QUALIFIED TECHNICAL AND MANAGERIAL SUPPORT COMPLEXITY OF SCHEDULE - MULTIPLE CRITICAL PATHS 1
+ - <.
e m ewa,
~-
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TOTAL CRAFT DNs!TE IN ADDITION TO 1600 -
PLANT MAINTENANCE FORCES (PRESENT L 1500-.
1400-T0aus 1300--
- U2C4 1200-C
' '~ ~
. g3[q liAINTENANCE &
g PLANT IMPROVE!4ENTS J.
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9 DESIRED MAXIMUM
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700- I CRAFT MANPOWEP.
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,e 200-100-1 2 3 4 5 6 7 h 9 10 11 12 234567891011 12 2345678910 11 12 1981 1982 1983 1984 fu mlS - YEARS
r ENCLOSURE 3 EFFECTS OF EXECUTING PRESENT SCHEDULE ON OPERATING UNITS SINCE NRC COMMITMENTS TAKE TOP PRIORITY, AVAILABILITY /
RELIABILITY, PERSONNEL SAFETY, NEEDED PREVENTATIVE MAINTENANCE, AND OTHER PLANT MAINTENANCE PROGRAMS'ARE TAKING SECOND PLACE AND ARE BEING DEFERRED.
EXTENDED PERIODS OF WORKING EMPLOYEES EXCESSIVE OVERTIME LEADS TO A DETERIORATION IN Eh?LOYEE ALERTNESS RESULTING IN MORE PERSONNEL ERRORS.
PLANT STAFF'S PARTICIPATION IN MODIFICATION RELATED ACTIVITIES PLACES ANNADDITIONAL BURDEN ON PERSONNEL MANY TIMES TO THE DETRIMENT OF THE OPERATION OF THE UNITS.
THE HIGH LEVEL OF WORK ACTIVITY IMPOSES A NEAR IMPOSSIBLE PROCEDURAL, TESTING, AND MAINTENANCE CHANGE PREPARATION LOAD AS WELL AS ADDITIONAL TRAINING (OVER 1100 OPERATING PROCEDURE CHANGES WERE MADE LAST YEAR).
~
LARGE NUMBERS OF EMPLOYEES RESULT IN INCREASED SECURIT7; HEALTH PHYSICS, AND CA DEVIATIONS AS WELL AS LER S.
AVAILABILITY REDUCTIONS.
PERFORMANCE OF MODIFICATIONS ON OPERATING UNITS TO MEET SCHEDULES INCREASE PROBASILITY OF CHALLENGES TO REACTOR PROTECTION AND SAFETY SYSTEMS.
OPERATIONS PEOPLE REQUIRED TO OPERATE THE UNIT CANNOT SUPPORT THE MAGNITUDE OF THE MODIFICATION EFFORT IN PROGRESS.
6
ENCLOSURE-4 TVA CRITERIA FOR COMMITMENT SCHEDULE REVIEW 1)
THE TECHNICAL DESIGN (STATE-0F-THE ART, NRC CR~ITERIA, AND PHYSICAL DESIGN EFFORT), MATERIAL DELIVERY, AND PHYSICAL IMPLEMENTATION CANNOT SUPPORT THE REQUIRED COMPLETION DATE.
'N 2)
THE WORK ACTIVITY'CAN BE DEFERRED WITHOUT ADVERSE EFFECT ON NUCLEAR SAFETY.
3)
THE REMAINING WORK ACTIVITIES WERE REVIEWED TO DETERMINE THOSE ACTIVITIcS WHICH COULD BE WORKED WITHOUT SIGNIFICANTLY AFFECTING OUTAGE DURATION AND MANPOWER REQUIREMENTS.
G e
r,-
+.
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ENCLOSURE 5 NRC COMMITMENTS SCHEDULED FOR COMPLETION WITHIN THE NEXT TWO YEARS (OCTOBER 1981 - OCTOBER 198.')
NUREG-0737 REQUIREMENTS II.K.3.15 MODIFY BREAK DETECTION LOGId II.F.1.6.A REPLACE 0 /H2 SAMPLE RETURtl PUMPS 2
IN PANELS25-336 AND -337 II.E.4.2.6 CONTAINMENT ISOLATION DEPENDABILITY MISCELLANE0US COMMITMENTS CONTROL ROOM CEILING IILE FLAMMABILITY UNDERVOLTAGE MODIFICATIONS lE BULLETIN 79 02 AND 70-14 (INSPECTIONS AND INITIAL DEFICIENCIES)
IpRUSINTEGRITYMODIFIC6TIONS (tXCEPT ATTACHED PIPING)
IE BULLETIN 79-27 SUPPRESSION POOL IEMPERATURE MONITORING SYSTEM (NUREF-0661)
LPCI MODIFICATIONS VARIOUS SECURITY MODIFICATION COMMITTED BY TVA LETTER OF JUNE 12, 1981, TO NRC
ENCLOSURE 6 CATEGORIES OF PRGPOSED-DEFERMENT COMPLETIONS CRITERIA I:
UNDEFINED SCOPE, IECHNICAL DESIGN OR MATERIALS INCOMPLETE II.B.3 POSTACCIDENT SAMPLING II.E.4.1 DEDICATED H2 PENETRATIONS
[
II.F.1.1 ACCIDENT MONITOR II.F.1.2 INSTRUMENTATION NOBLE GAS /l0 DINE MONITOR II.F.1.3 CONTAINMENT HI-RANGE MONITOR, II.F.1.4 CONTAINMENT PRESSURE II.F.1.5 CONTAINMENT WATER LEVEL
'II.K.3.13 RCIC AUTO RESTART III.A.1.2 UPGRADE f"ERGENCY SUPPORT i
CRD SYSTEM (IE BULLETIN 80-17)
' ANTICIPATED TRANSIENT WITHOUT SCRAM (ATWS)
MODIFY REACTOR PROTECTION SYSTEM IE BULLETIN 79-01B CRITERIA II:
NO ADVERSE AFFECT ON NUCLEAR SAFETY FOR WHICH COMPLETION WOULD CAUSE ADVERSE MANPOWER IMPACTS CRD RETURN LINE N0ZZLE CRACKING (NUREG-0619) i FW N0ZZLE CRACKING (NUREG-0619)
YARD UNWATERING EVACUATION ALARMS (IE BULLETIN 79-18)
RWCU LINE CONNECTION TO FW LINE A 4
TEMPERATURE INDICATION ON FEEDWATER N0ZZLES EIGHT-HOUR EMERGENCY LIGHTING (APPENDIX R)
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