ML20003E568
| ML20003E568 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 03/31/1981 |
| From: | Baynard P FLORIDA POWER CORP. |
| To: | Eisenhut D Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737, TASK-2.K.3.17, TASK-TM 3-031-33, 3-31-33, NUDOCS 8104060284 | |
| Download: ML20003E568 (17) | |
Text
a Florida Power C 0 m P O a a r t o as March 31, 1981 File:
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Mr. Darrell G. Eisenhut, Director
't Office of Nuclear Reactor Regulation (J
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U.S. Nuclear Regulatory Commission
%,,g, Washington, D.C. 20555
Subject:
Crystal River Unit 3
.g Docket No. 50-302 n
Operating License No. DPR-72 NUREG-0737 Item II.K.3.17 Report on Outages of the Emergency Core Cooling System (ECCS)
Dear Mr. Eisenhut:
Florida Power Corporation (FPC) committed by lette dated December 15, 1980, to provide the subject report by April 1,1931.
Provided herein is FPC's response wtiich completes our actions for this Action Plan item.
The ECC systems and supporting systems included in this report are:
Core Flooding System Makeup and Purification (High Pressure Injection) System Decay Heat Removal (Low Pressure Injection) System Closed Cycle Cooling Water System Sea Water System Borated Water Storage Tank Engineered Safety Features Actuation System Emergency Diesel Generators In addition to the ECCS equipment outages for corrective or preventive maintenance as listed in Tables 1 and 2, the ECCS equipment is surveil-lance tested pursuant to and at the frequencies specified in the Surveillance Requirements of Crystal River Unit 3, Standard Technical Specifications.
The durations and details of the testing mode are governed by the Technical Specification Surveillance Requi rements (Chemical Sampling,Section XI Pump and Valve Testing, Performance Moni-toring, etc.).
The duration of ECCS equipment testing may be on the order of several minutes to a few hours, depending on the specific re-quirement.
This information is not presented as this type of testing is o
done pursuant to the CR-3 operating license.
l 81 Oh%h O 32ci mnpounn sneet sourn. P O Box 14o42. St Petersbu g. Fionda 33733 813-%6-5t51 r
1 Mr. Darrell G. Eisenhut, Director March 31, 1981 Page 2 h
Based upon our review of Crystal River Unit 3 operating records (i.e.,
Non-Conforming Operating Report) for these systems, two outage categor-ies have been prepared. Table 1 presents outages which caused an action statement of the CR-3 Standard Technical Specifications to be entered and, therefore', a Licensee Event Report (or Reportable Occurrence Report) to be prepared.
Table 2 lists those remaining outage incidents (e.g., due i.c testing or maintenance during shutdown) where the system or component was not required to be operable per the CR-3 Standard Tech-nical Specifications.
Per your request, the exact outage duration has also been provided where this informatien was available and the correc-tive action has been delineated.
Based upon our evaluation of the CR-3 ECCS outages, a cumulative outage limitation for the ECCS is not warranted.
The 1:otal outage time when 4
the ECCS is required to be operable per the CR-3 St3ndard Technical Specificaticas has been shown to be minimal when compared to the total time when the systems were required to be operable.
.Very truly yours, FLORIDA POWER CORPORATION
. - / y.at atsy Y. Baynard danager
' Nuclear Support Services Mardis(WO9)D6-2 l
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TABLE I Page 1 of 4 REPCRTABLE GCCL*RRENCES Out of Returned to Outage Reported Reason System Service Service Duration for Recoval Corrective Code Tire Date Ti e Date Hrs.
from Service Action 0645 060277 0845 060277 2
EDG 3A failed to start, rightened injector, loose injector head caused hold down BDLTS,.
EG poor fuel / air mix established periodic check of belts.
0700 092877' 47 low lube oil pressure investigation revealed caused loss of start no attributable cause for EG permissive interlock low oil pressure.
0705 122777 1839 122777 11.5 Diesel govenor plugged by disassemb!.ed and cleaned debris causing diesel govenor and servo booster-EG failure to start changed oil.
0807 010378 1338 010378 5.5 same as above same as above EG 0631111778l0640 111778 0.15 Diesel failed to start -
investigation failed to cause unknown reveal cause.
EG 0700 072479 2330 072579 39.5 Diesel exhaust and turbo-repaired gasket leaks charger manifold leaks.
EG 1136 083177 083177 4.1 CFV-11 failed to close investigation failed to cause unknown reveal cause CF 0010 082777 1249 082777 36'.6 CFT-B boron cont ntration Graph of conservation low out of spec. causing times fo r cooldown shutdown result tnt and was developed. Mixing CF
. late entry into mode 4.
and adding boron 1040 090677 1700 090677 6.3 CFT-B boron concentration REI initiated to establish low out of spec. due to a mixing method for CFT's CF stratification
4 TABLE I Page 2 of 4
REPORTABLE OCCURRENCES Out of R. turned to Outage Reported Reason System Service Service Duration for Removal Corrective Code Tine Date Time Date Mrs.
from Service Action 0900 010179 0915 010179
.25 CFT-B N2 pressure HI out of revised OP-401 to include spec. due to operator a specified precaution CF inattention 0600 102379 0920 CFV-12 failed to close investigation could not cause unknown determine cause CF functional check Sat.
declared valve operable.
1119 080380 0940 080580 46.3 CFV-11 inoperable due to replaced rotor and a failed contact rotor inspect at next outage CF for wear 1600 090778 C;0978 C FV-15 torque switch replaced switch defective CF 1000 121477 1030 121477 0.5 insulation particle fouled cleaned cabine'ts contacts in cabinet 4A ES 1145 100578 1345 100578 2
relay malfunction due to moved cables
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interference of cables ES 1100 121378 121378
.5 relay RB 3 Group 2 stuck cleaned relay due to being dirty ES 1346 011979 1546 011979 2
timer in relay in cabinet cleaned contacts SC failed l
ES due to dirty contacts 1000 021479 021479 burr on ES relay in Channel removed burr A
TABLE I Page 3 of 4 REPORTABLE OCCURRENCES Out of Ruturned to Outage Reported Reason System Service Service Duration for Removal Corrective Code Tine Date Time Date Mrs.
from Service Action 001579 cracked insulation on 4100 replaced insulation riled ES BUS.
a Part 21 report.
ES 122976 MUP-33 seized due to investigation could not ~-
operation with suction valve determine cause nor MU shut due to spurious closure repeat single valve of valve closure 030797 72 MUV-26 packing leak repacked valve Ml' 0300 072977 0430 072977 1.5 MUV-25 blew a fuse due to
.ep laced fuse interlock binding of reverse interloch freed and all ES valve MU interlocks were checked.
1600 08077S 081079 MUP-1B discharge drain "line was replaced with line leak 316SS.
MU 2300 092475 1020 100679 MUP-1B drain line weld re'as d line cracked MU 1735 102475 1340 103079 140.1 MUv-219 (MUP-1B vent) leak leak repaired mar initiated to reduce stres.
MU on vent line.
03018]
AQ relay RC-2 CAB-5 l' ailed investigation talled cause unknown to reveal cause ES 1210 12077]
1300 120777
.8 DHV-110 flow switch did recalibrated tiow switen not function properly DH
TABLE I Page 4 of 4
REPCRTA3LE CCCl2RENCES Out of Returned to Outage Reported Reason Jystem Service Service Duration for Removal Correctivc Code Tire Date Time Date Mrs.
from Service Action 1300 062178 DHV-111 failed to open investigation showed cause unknown valve functioning DH pr o p e r 1.y.
0245 100478 1145 100478 9
DHV-110 flow controller valves opened DH-43-FIS isolated cause DH unknown 0120 040179 040179 DHV-110 failed to control investigation failed flow in " auto" to reveal cause DH cause unknown.
0230 092279.1330 092879 DH-39-TI failed replaced RID cause - RID failure investigation failed to DH cause of failure unknc a reves1 cause 1400 093079 100479 DH-40-TI failed f'replacedmetermovement cause determined to be DH defective meter movement f
0300 082780 DHV-111 failed to control adjusted DEV-111 flow cause attributed to ontroller sensing line DH water in sensing line 0700 071577 44 SWV-47 inoperable from it stigation failed control room caused by loose to veal cause SW wires in relay 0001 010978 0640 010978 6.6 Tunnel sump pump ' ailed replaced motor contact to start.
Motor start bulb with higher current DC control bulb failure bulb
TABLE II Fage 1 of 11 NONREFORTABLE OCCURRENCES Out of Returned to Outage Reported Reason System Service Service Duration for Removal Corrective Code Time Date Time Date Mrs.
from Service Action 012181 SWV-67 position indicator recalibrated aut of calibration - drif t SW 1611 102578 DFP-3A f ailed to start replaced fuses blown fuses - cause investigation unable to DF unknown determine cause.
010781 DF pump f ailed to start investigation round cause unknown limit switch out of DF calibration.
2343 080377 080477 DHV-110 f ailed to control replaced fuses flow in " auto" investigation unable DH Fuses blown - cause to determine cause.
g unknown 1824 031179 DHV-Ill f ailed to control investigation unable flow to determine cause.
DH Function AL test Sat.
1630 031779 DHV-110 inoperable DH 1825 081579 DH-40-TI drif:
recalibrated DH 0300 081879 DH-40-T1 failed replaced amplitier.
cause bad amplifier investigation unable DH to determine cause 0710 092679 DH-40-TI failed cause replaced meter movement unknown, later determined funcional check Sat.
DH as bad meter
TABLE II Page 2 of 11 NONREPORTABLE OCCURRENCES Out of Returned to Outage Reported Reason i
System Service Service Duration for Removal Corrective Code Time Date - Time Date Mrs.
from Service Action 020680 021380 DHV-110 failed to control self-corrected flow in auto, cause investigation DH unknown could not determine cause DH 1423 061880 1543 061880 1.3 DH-2-TI out of service 0700 080680 1500 080680 8
DHV-110 failed to control vented sensing line flow in " auto", cause-DH air in sensing line 082780 1500 082780 12 DHV-110 fatted.to control vented sensing line flow in " auto", cause -
DH air in sensing line 090380 090580 DNV-110 failed to open replaced operator causc - failed operator motor DH 1630 042677 DH LI.out of service for maintenance.
DH 1630 091180 091180 DE-37-LI fluctuation performed calibration cause unkncvn investigation unable DH to determine cause 0530 0 92080 DH-37 LI erroneous readin;; purged detector line caused by water in investigation unable DH detector line to determine cause
TABLE II Page 3 of 11 NONREPORTABLE OCCURRENCES Out of Recurr.2d to Outage Reported Reason System Service Service Duration for Removal Corrective Code Time Date Time Date Hrs.
from Service Action 021981 DHV-110 controller removec repaired leak from service for repair DH of DH-43-FIS leak 1450 071580 DH-2-TI-1 out of
^ investigation unable calibration to determine cause DH 1430 071380 1500 071680 72.5 DHV-111 cyclir.g investigation unable to determine cause DH 0700 071380 1500 071680 80 DHV-110 failed to control ficw in " auto", cause -
DH 0400 071279 BWST level low refill tank DH 1800 071379 BWST boron concentration high cause poor mixing DH due to insufficient l
mix time.
101479 SWHE-1A baffles MAR 78-10-3 replaced deteriorated with repaired head.
SW i
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061879 SWHE's A-D base plate concrete replaced.
support cracked SW 061879 SWHE lA discharge pipe concrete replaced concrete support cracked SW l
TABLE II Page 4 of 11 NONREPORTABLE OCCURRENCES Out of Returned to Outage Reported Reason i
System Service Service Duration for Removal Corrective Code Time Date Time Date Mrs.
from Service Action 080180 SW 109, 353, and 151 investigation of cause failed to go to ES unsuccessful. Func t io nal SW position - cause unknown check performed Sat.
050180 DCP-1A failed to start investigatio: of cause cause unknown unsuccessful.
Functiona DC check performed Sat.
102677 DCV-3 partially closed -
investigation unable cause unknown to determine cause DC 063077 RWP-2A and 3A out for maintenance.
RW 103179 RWP-1 outlet flange blind flange installed removed RW 011277 021477 Seal injection filter replaced filter and rupture changed service life MU to 25 psid from 60 psid.
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2145 040177 040477 MUV-25 failed to close jumpers removed l
due to being temporarily personnel trained on l
MU
- umpered jumper requirements.
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060877 MUV-14 failed to close l
l MU l
1900 070177 MUV-18 inoperable for maintenance valve l
MU operator was removed I
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TABL2 II Fage 5 of 11 NONREPORTABLE OCCURRENCES Out of Returned to Outage Reported Reason System Service Service Duration for Removal Corrective Code Tire Date Time Date Mrs.
from Service Action 1030 072877 MUV-24 failed to close interlock was due to a binding inter-lubricated MU lock i
101478 lost PWR to MUP 3C lube replaced fuse oil pump blown fuse investigation unable MU cause unknown to determine cause 1430 102478 MUV-58 failed to close switch replaced due to defective torque investigation unable MU switch to determine cause 2300 031279 MUV-18 leaking at weld reweloed MU 0640 040479 MUV-23 blosa fuse replared fuse cause unknown investigation unable MU to determine cause 1234 100879 MUV-3 packing leak valve isolated and repacked MU 0600 11017S MUP-LC and MUV-283 piping reroute to remove MU unnecessary stress.
1800 041680 MUV 23, 24, 25 and 26 1tstalled new stems of bent stems
- t. 564 grade 630 vice MU A-182-F316 1924 10068C 100780 MU-22-PI 3 out of installed new gauge calibration MU
TABLE II Page 6 of_11_
NONREPORTABLE OCCURRENCES Out of Returned to Outage Reported Reason System Service Service Duration for Removal Corrective Code Time Date Time Date Mrs.
from Service Action 1150 100780 MU-22-PI2 out of recalibrated calibration MU 1530 072777 ESTRIP circuit fai.ure repaired wire due to broken wire investigation unable ES cause unknown to determine cause 1400 021578 light bulb failure replaced bulb cause unknown investigation unable ES to determine cause 1500 021678 DHV-3 defective relay replaced relay cause unknown investigation unabic ES to determine cause 1910 041078 ES actuation from channel investigation unable A electronic spike to determine cause ES cause unknown 1600 090678 Bistable out of recalibrated calibration ES 1515 111678 RB 2 GB2, RC3 CBJ and cleaned contacts ERCH indicating ights ES inoperable foulec contacta 1030 011975 bailey motor relay failed replaced relay cause unknown investigation unable ES to determine cause 2000 042475 4160 UV coil failed replaced coil cause unknown investigation unable ES to determine cause
r TABLE II page 7 of 11 NONREPORTABLE OCCURRENCES Out of Returned to Outage Reported Reason System Service Service Duration for Removal Corrective Code Time Date Time Date Mrs.
from Service Action 0730 0624d0 0o2460 15V power supply unstacle replacea power supply cause unknown investigation unable ES to determine cause 062780 0e2880 15V DC power supply replaced power supply unstable, cause unknown investigation unable ES to determine cause I
1430 070380 loose. wires ES 1200 072280 072260 relay AV ES channel A replaced relay RC-3 didn' t reset investigation unable ES Cause unknown to determine cause 0430 072280 072380 blown fuse channel 3A replaced fuse cause unknown investigatten unable ES to determine cause 070680 loose wires investigation unable to deter =ine cause ES 09238C ES cabinet-B relay replaced relay failed, cause unknown investigation unable ES to determine cause l
1329 082180 1632 08218g 3
NI-5 inoperable l
ES 0945 05068C 2000 050980 82.25 ES 4160V BUS 3 inspection ES l
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TABLE II Page 8 of _LL_
NONREFORTABLE OCCURRENCES Out of Returned to l Outage Reported Reason System Service Service Duration for Removal Corrective Code Time Date Time Date Hrs.
from Service Action 0910 030181 2300 030181 13.8 Bad relay on ES-B, RB-1 Group-2 ES 2115 031381 1315 031481 16 Bad relay on ES Channel 3 ES 0810 090977 1020 090977 2.1 CFV-Il routine maint.
CF 1040 090977 1250 090977 2.1 CFV-12 routine maint.
CF 1255 090977 1440 090977 1.6 CFV-15 routine maint.
CF 0800 091277 0920 091277 1.3 CFV-16 routine maint.
CF 010777 CEV-5 & 6 inoperable investigation unable cause unknown to determine cause l
CF i
l 010877 CFV-5 closed with RCS investigation unable l
l pressure >750 psig to determine cause l
CF cause unknown 1100 030197 030177 CFV-25 inoperable closed links l
cause-links open investigation unable CF to determine cause l
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r TABLE II Fage 9 of 11 NONREPORTABLE OCCt RRENCES Out of Returned to Outage Reported Reason l Corrective System Service Service Duration for Removal Code Time Date Time Date Mrs.
frem Service Action 2110 091279 CFV-12 failed to close cleaned contacts fouled contacts CF 1440 080580 1730 080680 26.8 CF-2-LI read.ing high calibrated instrument dr if t CF 010481 CF-2-LI reading high replaced detector cause de fective detector CF 0610 041580 CFT-B drained for maintenance CF 0700 041580 CFT-A drained for maintenance CF 1115 022781 030181 C F LT1, LT2, LT3 and calibrated level LT4 out of calibration transmitters CF 2250 0306a!;0535 030681 30.75 CFV-16 stuck in intermediate position CF 1700 031681 2075 031781 27.4 CF-2 LI-3 reading high cause unknown CF 0610 010475 EDG-A failed to start due to ambient teep.
EG 280 F
TABLE II Page 10 of 11 NONREPCRTABLE OCCURRENCES Out of Returned to Outage Reported Reason System Service Service Duration for Removal Corrective Code Time Date Time Date Mrs.
from Service Action 0545 010479 EDG-B failed to start due to ambient temp.
EG 28 F 1200 102379 crack in EDG fuel line resolder EG 0515 122880 fire in EDG-B panel EG 1515 031180 062080 EDG fuel transfer pump investigation could not~
failed to auto start determine cause and EG cause unknown repeat f**.ure
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1355 052980 062080 EDG radiator incompatible inspected radiator material changed to NACLO 396 EG corrdsion inhibitor 0700 081280 0730 081380 24.5 EDG-A turbocharger gasket change - preventative EG maintenance 1445 112580 EDG-B f ailed to start recalibrated P.S.
air switch out of EG calibration, cause unknown 2155 082580 1755 082680 20 change of jacket coolant on EDG EG 1655 080680 1600 080780 23.1 install new after cooler -
preventative maintenance EG
TABLE 11 Page it of it NONREPORTABLE OCCURRENCES Out of Returned to Outage Reported Reason System Service Service Duration for Removal Corrective Code Time Date Time Date Hrs.
from Service Action 0610 0415c0 0714 043080 361 EDGA overhaul preventative maintenance EG 0800 050560 2230 050980 110.5 EDG-A tagged for maintenance EG 1024 062680 1410 063080 97.75 EDG-B =aintenance EG 0545 070380 1240 070580 54.9 EDG-A maintenance EG 1000 031181 2030 i'31181 10.5 EDG-A oil change maintenance EG t
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