ML20011F506
| ML20011F506 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png |
| Issue date: | 12/31/1989 |
| From: | Joyce T COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9003060160 | |
| Download: ML20011F506 (21) | |
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i-n February 21, 1990 l
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To:
U.S. Nuclear Regulatory Commission Attn: Document Control Desk l
Washington, D.C.
20555
Subject:
Zion Nuclear Power Station Annual Report for 1989.
NRC Docket 50-295 and 50-304 f
Enclosed for your records is Zion Station Nuclear Power Station Annual Report and 10CFR 50.59 Report for 1989.
If you have any questions regerding this report,.please contact Lee Bush at Zion Station extension 2487.
/s T. P. Joyce' t
f Station Manager i
Zion Station cc: J. D. Smith, Zion Senior Resident Inspector B. Davis, NRC Region III Director H. T'Niemi g
R. Chrzanowski (NLA)
H. Stone, Regulatory Assurance R. Mika l
B. Schramer l
Master File l
9003060160 891231 1)3 l-ps ADocK05oogg5
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ZION NUCLEAR POWER STATION ANNUAL REPORT 1989 1
DOCKET 50-295 and 50-304 COMMONWEALTH EDISON COMPANY j
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i TABLE 0F CONTENT.'
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Environmental, Radiological and Meterological Monitoring i
II
~Waukegan Memorial Airport Expansion Plans III. Annual Occupational Exposure Data IV. Challenges to Primary System PORVs and Safety Valves
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Environmental. Radiological and Meterological Monitoring is submitted as Part III of the Zion Station Annual Operating Rerart.
This report will be transmitted under separate cover.
II. Waukegan Memorial Airport Expansion Plans:
i The airport master record (FAA 5010-1) and airport map (FAA 5090-1) has been updated and submitted by the Haukegan Port Administrator.
The only change being a change in the airport Manager.
This position is currently being filled by Mr. A. L. Huisman.
Ongoing expansion plans at the Haukegan Regional Airport are; land acquisition for runway 05 approach and obtaining aviation easements in j
the same area. i.e. Greenbay Road (East and West side).
III. Annual Occupational Exposure Data is reported on Personal Radiation Exposure per Reg. Guide 1.16.
This report will be transmitted under 1
separate cover.
IV. Challenges to Primary System PORVs and Safety Valves:
No challenges occurred to either the Primary System PORVs or Safety Valves during this reporting period.
This report fulfills the requirements of NUREG 0737 item II, k 3.3, " Reporting S/RV Failures and Challenges".
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ZION NUCLEAR POWER STATION j
i ANNUAL 10CFR50.59 REPORT 1989 l
DOCKET 50-295 and 50-304 I
l COMMONNEALTH EDISON COMPANY 1
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TABLE OF CONTENT J
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Modifications i
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Tests I'
III. Experiments i
IV. Other Safety Evaluations j
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Modifications:
A.
Refuelings:
Unit i refueling outage started on 9/7/89 and ended on 1/25/90.
1 Fuel was loaded in 1989.
B.
Modifications:
i Five reportable modifications were completed and verified to operate properly. The modifications are:
j 1.
Modification Description - M22-1-88-029:
Portions of CRDM penetrations K-4 and G-5 have been cutoff and capped so that primary leakage can be prevented.
Leakage was identified during the Unit I refueling outage.
Safety Evaluation Summary:
L Modification ensures integrity of the Reactor Coolant System
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pressure boundary. Only parameter changed is the location of the pressure boundary.
No new accidents created and the modification is bounded by previous accident analysis.
Modification does not affect margin of safety as the stress l
l report required by code confirms stresses are within code i
L allowable.
2.
Modification Description - H22-2-84-028:
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Replaces Powell Gate Valve RV0005&6 with post-seal high performance butterfly valves in the Containment vacuum and pressure relief line.
Safety Evaluation Summary:
These valves provide Containment isolation function for the
{
vacuum and pressure relief line.
Dual valve isolation provides redundancy to maintain Containment leakage below Technical Specification limit of 11. per day.
The valves are designed fall i
l safe-closed for all accidents, loss of air and electrical l
power.
New valve testing requirements will be maintained as l
required by Technical Specification 3.9.
1 3.
Modification Description - M22-2-86-023:
Rearranges the Bypass and Permissive Panel in accordance with the human factors design review.
Safety Evaluation Summary:
The modification only involves an annunciator alarm and does not affect any accidents previously analyzed.
It also does not affect a margin of safety as described in the Technical Specifications.
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Modification Description - M22-87-055:
j Install flanged spool pieces into area of piping which j
previously contained air filter canisters.
The spool pieces are i
designed to maintain the seismic qualification of the associated piping system.
Piping system is non-safety related.
Safety Evaluation Summary:
System is described in FSAR section 11.3.3, but is not used because it does not meet the requirements of NUREG 0737 regarding post-accident sampling.
The portion of.the system addressed is non-safety related and does not perform any post-accident functions.
However, it is required to be seismic qualified.
i 5.
Modification Description - M22-1-82-35:
i The MSIV hydraulic system is being changed to satisfy i
L Environmental Qualification (EQ) and improve logic interlocks.
Hydraulic fluid will be used to open the valve, but N2 gas pressure will be used to close the valve.
The partial stroke remains the same and closing time requirements remain fulfilled.
Safety Evaluation Summary:
i This change improved the system's reliability because of the Equipment. Qualification program.
II.
Tests:
l There were no tests conducted that involved a change in the Technical l
Specifications, FSAR, or created an unreviewed safety question.
III. Experiments:
There were no experiments conducted that involved a change in the Technical Specifications, FSAR, or created an unreviewed safety question.
4 IV. Other Safety Evaluations:
A.
Temporary Alterations:
TA-89-001 I
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Description:==
Temporary alteration to allow use of redundant sensing line for the 1C Steam Generator steam flow.
channel due to a plugged sensing line.
Date Installed:
02-18-89 Date Removed:
11-23-89 50.59 Evaluation: Temporary alteration restores the flow channel to operable status.
Design bases is not changed.
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Temporary Alterations (Continued):
TA-89-012
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Description:==
Temporary alteration to allow closure of aircraft crash detection dampers while ventilation fans are being worked on.
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Date Installed:
02-18-89 Date Removed:
03-29-89 50.95 Evaluation: Dampers will be placed into their isolated position.
1 Redundant ventilation systems will supply cooling to
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required equipment.
y TA-89-028 j
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Description:==
Temporary alteration blocking open Unit 2 service air isolation valves into the Containment. Alteration to i
provide an uninteruptable supply of air for outage work.
Date Installed:
01-16-89 Date Removed:
01-27-89 50.95 Evaluation: Containment isolation capability not required in modes 5, or 6.
Valves will be restored to operable status prior to entry into mode of applicability.
TA-89-039
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Description:==
. Temporary alteration blocking open Unit 1 service air isolation valves into the Containment. Alteration to provide an uninteruptable supply of air for outage work.
Date Installed:
02-10-89 Date Removed:
01-27-89 1
l 50.59 Evaluation: Containment isolation capability not required in modes i
5, or 6.
Valves will be restored to operable status prior to entry into mode of applicability.
TA-89-082
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Description:==
Temporary alteration to allow closure of aircraft crash detection dampers while ventilation fans are being worked on.
Date Installed:
05-11-89 Date Removed:
06-23-89
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50.59 Evaluation: Dampers will be placed into their isolated position.
j Redundant ventilation systems will supply cooling to required equipment.
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Temporary Alterations (Continued):
TA-89-089
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Description:==
Temporary alteration removing the check valve installed in the cooling lines for the auxiliary feedwater pumps. Check valve is creating too much backpressure causing the relief valve to lift.
Date Installed:
05-17-89 Date Removed: 06-05-89 50.59 Evaluation: Removal of the check valve does not affect the design bases for the system.
System will still remain operable under all analyzed conditions.
1 TA-89-094 L
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Description:==
Temporary alteration to block the ID Main Steam Isolation Bypass Valve in the closed position in order to perform corrective maintenance.
Date Installed:
06-22-89 Date Removed:
06-23-89 50.59 Evaluation: Valve will remain in its required isolated condition during the period while the valve is being repaired.
TA-89-098
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Description:==
Temporary alteration bypassing the Main Control Board switches for the Auxiliary Building ventilation fans.
Date Installed:
07-25-89 Date Removed: 07-31-89 50.59 Evaluation: Fans will still be capable of auto starting on all required signals.
TA-89-103
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Description:==
Temporary a,1teration to allow closure of aircraft crash detection dampers while Control Room human factors i
modifications are in progress.
Date Installed:
08-30-89 Date Removed:
10-10-89 I
50.59 Evaluation: Dampers will be placed into their isolated position.
Redundant ventilation systems will supply cooling to required equipment.
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Temporary Alterations (Continued):
TA-89-106
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Description:==
Provide a penetration through the Fuel Handling Building roof to run Steam Generator testing cables to the test trailer.
1 Date Installed:
09-14-89 Date Removed:
11-13-89 50.59 Evaluation: Penetration will be sealed to maintain building integrity.
TA-89-107
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Description:==
Temporary alteration disabling the low temperature alarm associated with an isolated pressurizer spray line on Unit 2.
Date Installed:
07-27-89 Date Removed: 08-16-09 50.59 Evaluation: Temporary isolation disables the alarm associated with an isolated flowpath.
Alteration will allow the non-isolated spray line to alarm by clearing the alarm that is in.
The alarm function for the isolated spray line is not required.
1 TA-89-109
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Description:==
Temporary alteration to maintain the Auxiliary Building Charcoal Booster Fan OA Discharge Dampers closed during the performance of Control Room human factors modifications relocating the booster fan control switch.
Date Installed:
08-30-89 Date Removed:
10-09-89 50.59 Evaluation: The minimum number of fans required as addressed in the Technical Specifications will be maintained.
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TA-89-110
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Description:==
Temporary alteration removing the computer input from a Unit 1 Containment high range monitor.
Date Installed:
08-02-89 Date Removed:
10-09-89 50.59 Evaluation: Computer points alone are disabled.
Main Control Room readouts will remain operable.
Function of monitors is not affected.
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Temporary Alterations (Continued):
TA-89-111
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Description:==
Temporary alteration removing the computer input from a Unit 1 Containment high range monitor.
Date Installed:
08-02-89 Date Removed:
10-09-89 i
50.59 Evaluation: Computer points alone are disabled. Main Control Room readouts will remain operable.
Function of monitors is not affected.
TA-89-112
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Description:==
Installation of a line plug to support Component Cooling Water System safety valve setpoint testing.
Safety valve currently installed in an unisolable fashion.
Temporary alteration will allow for the installation of a line plug for the duration of the test.
Date Installed:
09-30-89 Date Removed:
09-20-89 50.59 Evaluation: Installation will be consistent with the code requirements of the system.
TA-39-113
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Description:==
Installation of a line plug to support component cooling water to seal water heat exchanger safety valve setpoint testing. Temporary alteration will allow for the installation of a line plug for the duration of the test.
Date Installed:
09-27-89 Date Removed:
09-27-89 50.59 Evaluation: Installation will bc consistent with the code requirements of the system.
TA-89-114
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Description:==
Installation of a line plug to support component I
cooling water to letdown heat exchanger safety valve setpoint testing.
Safety valve currently Installed in an unisolable fashion.
Temporary alteration will allow for the installation c' a line plug for the duration of the test.
Date Installed:
09-27-89 Date Removed: 09-27-89 50.59 Evaluation: Installation will be consistent with the code requirements of the system.
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Temporary Alterations (Continued):
TA-89-il5
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Description:==
Inetallation of a line plug to support component cooling water to RHR heat exchanger safety valve setpoint testing. Safety valve currently installed in an unisolable fashion.
Temporary alteration will allow for the installation of a line plug for the duration of the test.
Date Installed:
09-29-89 Date Removed: 09-29-89 50.59 Evaluation: Installation will be consistent with the code requirements of the system.
TA-89-il7
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Description:==
Installation of a line plug to support component cooling water to spent fuel pool heat exchanger safety valve setpoint testing.
Safety valve currently installed in an unisolable line plug for_the duration of the test.
Date Installed:
09-29-89 Date Removed: 09-29-89 50.59 Evaluation: Installation will be consistent with the code requirements of the system.
TA-89-118
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Description:==
Installation of a line plug to support component cooling water to RHR heat exchanger safety valve setpoint testing.
Safety valve currently installed in an unisolable fashion. Temporary alteration will allow for the installation of a line plug for the duration of the test.
Date Installed:
09-29-89 Date Removed: 09-29-89 50.59 Evaluation: Installation will be consistent with the code requirements of the system.
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Temporary Alterations (Continued):
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TA-89-125
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Description:==
Temporary alteration disabling the low temperature alarm associated with an isolated pressurizer spray line.
Date Installed:
08-16-89 Date Removed:
Still installed 50.95 Evaluation: Temporary isolation disables the alarm associated with an isolated flowpath. Alteration will allow the non-isolated spray line to alarm by clearing the alarm that is in.
The alarm function for the isolated spray line is not required.
TA-89-131
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Description:==
Temporary alteration to provide a temporary source of power for the telephone system, during Bus 138 outage.
Date Installed:
11-13-89 Date Removed:
12-02-89 50.59 Evaluation: Phone will remain available for the duration of Bus 138 outage. Temporary power supply has adequate reserve capability and will not be degraded.
TA-89-134 i
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Description:==
Temporary alteration blocking open the Unit I service air isolation valves into the Containment. Alteration 3
to provide an uninteruptable supply of air for outage work.
Date Installed:
09-11-89 Date Removed:
10-10-89 50.59 Evaluation: Containment isolation capability not required in modes 5, or 6.
Valves will be restored to operable status prior to entry into mode of applicability.
1 TA-89-135
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Description:==
Temporary alteration blocking open the Unit I service air isolation valves into the Containment. Alteration to provide an uninteruptable supply of air for outage work.
Date Installed:
09-11-89 Date Removed:
10-10-89 50.59 Evaluation: Containment isolation capability not required in modes 5, or 6.
Valves will be restored to operable status prior to entry into mode of applicability.
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Temporary Alterations (Continued):
TA-89-136
Description:
Terporary alteration blocking open the Unit I fire protection isolation valves into the Containment.
Alteration to provide an uninteruptable supply of fire water during outage work.
Date Installed:
09-11-89 Date Removed:
11-13-89 50.59 Evaluation: Containment isolation capability not required in modes 5, or 6.
Valves will be restored to operable status prior to entry into mode of applicability.
TA-89-137 f
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Description:==
Temporary alteration blocking open the Unit 1 instrument air isolation valves into the Containment.
Alteration to provide an uninteruptable supply of air for outage work.
Date Installed:
09-11-89 Date Remove:l:
10-05-89 50.59 Evaluation: Containment isolation capability not required in modes 5, or 6.
Valves will be restored to operable status prior to entry into mode of applicability.
TA-89-138
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Description:==
Temporary alteration blocking open the Unit 1 instrument air isolation valves into the Containment.
Alteration to provide an uninteruptable supply of air i
for outage work, Date Installed:
09-11-89 Date Removed:
10-05-889 50.59 Evaluation: Containment isolation capability not required in modes 5, or 6.
Valves will be restored to operable status prior to entry into mode of applicability.
TA-89-141 j
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Description:==
Temporary alteration blocking open the Unit 1 Containment sump isolation valves from the j
Containment. Alteration to assure ability to pump water from the Containment during the outage.
-89 Date Installed:
10-12-89 Date Removed:
50.59 Evaluation: Containment isolation capability not required in modes 5, or 6.
Valves will be restored to operable status prior to entry into mode of applicability.
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Temporary Alterations (Continued):
TA-89-143
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Description:==
Temporary alteration to supply power to miscellaneous plant radiation monitors during installation of a modification.
Date Installed:
09-16-89 Date Removed:
10-09-89 j
50.59 Evaluation: Monitors not currently required operable.
Monitors l
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will still be capable of providing required function.
Permanent power supply will be returned prior to mode of applicability.
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i TA-89-144
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Description:==
Temporary alteration defeats the auxiliary steam isolation to the Auxiliary Building on high radiation.
Date Installed:
09-18-89 Date Removed:
09-18-89 l
50.59 Evaluation: Auxiliary steam Will be isolated to the Auxiliary Building while the alteration is installed.
.TA-89-146
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Description:==
Temporary alteration disabling several plant area radiation monitors to relocate the recorders.
This modification is part of the Control Room human factors upgrade effort.
Date Installed: 09-19-89 Date Removed:
Still installed 50.59 Evaluation: Alarm and recording functions will still be maintained. Area radiation levels can still be monitored using meters associated with the radiation monitor.
TA 89-148
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Description:==
Temporary power feed for the Boric Acid Evaporators, to support Unit 1 outage activities.
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Date Installed:
11-33-89 Date Removed:
Still installed 50.59 Evaluation: Power supply is non-safety related.
Temporary power supply has adequate reserve capability-20980 10
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Temporary Alterations (Continued):
TA-89-150
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Description:==
Temporary alteration to allow for the complete draining-of the~"0" Diesel Generator fuel oil storage tank for its required 10 year cleaning.
-Date Installed:
09-22-89 Date Removed:
09-28 50.59 Evaluation: Diesel Generator is not required operable for Unit 1 operations in this mode.
The Technical Specifications-allowable outage time frame will-be complied with for Unit 2 operations.
TA-89-152
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Description:==
Temporary alteration blocking open the Unit 1 instrument air isolation valves into the Containment.
Alteration to provide an uninteruptable supply of air.
for outage work.
Date Installed:
10-15-89 Date Removed:
11-12-89 50.59 Evaluation:. Containment isolation capability not required in modes 5, or 6.
Valves.will be' restored to operable status prior to entry into mode of applicability.
TA-89-153
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Description:==
Temporary alteration blocking.open the Unit 1
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instrument air isolation valves into the Containment.
Alteration to provide an uninteruptable supply of air' for outage work.
Date Installed:
10-15-89 Date Removed:
11-12-89 50.59 Evaluation: Containment isolation capability not required in modes 5, or 6.
Valves will be restored to operable status prior to entry into mode of applicability.
TA-89-157
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Description:==
Temporary alteration blocking open the Unit I service air isolation valves into the Containment.
Alteration to provide an uninteruptable supply of air for outage work.
Date Installed:
10-10-89 Date Removed:
11-27-89 50.59. Evaluation: Containment isolation capability not required in modes 5, or 6.
Valves will be restored to operable status prior to entry into mode of applicability.
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Temporary Alterations (Continued):
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TA-89-160
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Description:==
Temporary citeration to enable 4160 volt non-safety related feeder breaker interlocks to function as required, untti completion of a logic modification.
Dace Installed:
10-15-89.-
Date Removed:
10-31-89 50.59 Evaluation: Breaker function will be retained as described in the.
FSAR.-
TA-89-161
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Description:==
Temporary alteration to enable 4160 volt non-safety related feeder breaker' interlocks to function as-required,-until completion of a logic modification.
Date Installed:
10-15-89 Date Removed:- 12-10-89 1
50.59 Evaluation: Breaker function will be retained as described in the-FSAR..
7 TA-89-176
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Description:==
Temporary alteration to decrease the closure time associated with the aircraft crash dampers.
Date' Installed:
11-14-89 Date Removed:
Still inta11ed 50.59 Evaluation: Alteration will restore the' closure time to within the values assumed in the FSAR.
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LTA-89-183
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Description:==
Temporary alterations to prevent air inleakage and-bypass air flow through Auxiliary Building and Control.
Room ventilation trains while modifications being made on filter train drain lines.
Date Installed:
12-21-89 Date Removed:
12-29-89 h-50.59 Evaluation: Temporary alteration will not impact the function of the filter trains.
Bypass flowpaths will be eliminated, improving overall effectiveness.
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Temporary Alterations (Continued):
j TA-89-184
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Description:==
Temporary alterations to prevent air inleakage and bypass j
air flow through Auxiliary Building and Control Room 1
ventilation trains while modifications being made on filter train drain lines.
Date Installed:
12-20-89 Date Removed:
01-05-90 50.59 Evaluation: Temporary alteration will not impact the function of the i
filter trains. Bypass flowpaths will be eliminated, improving overall effectiveness.
TA-89-192 7
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Description:==
Unit 1 temporary alteration. disabling the low temp /high pressure recirculation alarm associated with the boron injection tank.
This alteration will remain in place until a modification to permanently remove these alarms is processed.
I Date Installed:
12-13-89 Date Removed:
Still installed 50.59 Evaluation: The requirement for a boron injection tank and boron concentration of 12%, has been eliminated. As such, the requirement for these function is no longer needed.
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L TA-89-193 i
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Description:==
Unit 2 temporary alteration disabling the low-temp /high pressure recirculation alarm associated with'the boron.
injection tank.
This alteration will remain in place until a modification to permanently remove these alarms is processed.
l Date' Installed:
12-13-89 Date Removed:
Still installed l
50.59 Evaluation:.The requirement for a boron injection tank and boron concentration of 12%, has been eliminated. As such, the requirement for-these function is no longer needed.
.TA-89-194
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Description:==
Temporary alteration installing a blind flange in~the suction for the "0A" component cooling water pump.
This alteration is necessary to ensure positive isolation of the pump for maintenance.
Date Installed:
12-12-89 Date Removed: 01-03-90 50.59 Evaluation: Pump will be removed from service. The minimum number of pumps required by the technical specifications will continue to be met.
This alteration will only affect the 0A pump.
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Temporary Alterations (Continued):
TA-89-197
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Description:==
Temporary alteration to provide a valve leakoff path for leakage past the Unit I high head safety injection valves (8801's).
This alteration will help prevent thermal cycling of the high head safety injection lines
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due to valve leak by.
Date Insta11sd:
12-15-89 Date Removed:
Still' installed
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I 50.59 Evaluation: The minimum safety injection flow rates will not be altered significantly.
The assumptions made in-the safety analysis will be maintained.
TA-89-198 l.
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Description:==
Temporary alteration' disabling the Unit I circulating water pump trip on high traveling differential pressure.
Alteration required to prevent spurious a
trips due to ice in the intake forebay.
s Date Installed:
12-15-89 Date Removed:
Still installed' 50.59 Evaluation: Circulating water pump trip is not a required safety function.
Loss of a. circulating water pump could result in a unit trip which is an analyzed event.
TA-89-199 i
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Description:==
Temporary alteration disabling the Unit 2 circulating water pump trip on high traveling differential-pressure. Alteration required to prevent spurious-trips due to ice in the intake' forebay.-
Date Installed:
12-15-89 Date Rc< moved: Still installed
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50.59' Evaluation: Circulating water pump trip is not a required safety function.
Loss of a circulating water pump could result in a until trip which is an analyzed event.
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-TA-89-203
==
Description:==
Temporary alteration replacing the limitorque spring packs in the Unit 1 auxiliary feedwater pump discharge valves with a higher rated spring pack.
Date Installed:
12-31-89 Date Removed:
Still installed 50.59 Evaluation: Installation of the higher value spring packs will improve the valves performance.
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Miscellaneous Onsite Reviews OSR 047-89
==
Description:==
Onsite review of MOV diagnostic testing methods using the Liberty Technologies VOTES system.
50.59 Evaluation: System involves the installation of a strain gage on e11 MOVs being tested.
The installation of this strain gage has no effect.on valve. operation'or failure mechanisms.'
l OSR-062-89
==
Description:==
Onsite review of the Cycle 12 reload analysis for the
-fall Unit I refueling outage.
.5'.59 Evaluation: All Technical Specification, FSAR, and transient 0
analysis limits are maintained, j,
OSR 069-89
==
Description:==
Rod deviation alarm program was revised to' eliminate spurious alarms.
50.59 Evaluation: Program change did not alter the functional requirements for the rod deviation-alarms.- Alterations
'l will only function to eliminate false alarms ~.
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