RCP Seal Replacement with Pump on BackseatML031050560 |
Person / Time |
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Site: |
Beaver Valley, Millstone, Hatch, Monticello, Calvert Cliffs, Dresden, Davis Besse, Peach Bottom, Browns Ferry, Salem, Oconee, Mcguire, Nine Mile Point, Palisades, Palo Verde, Perry, Indian Point, Fermi, Kewaunee, Catawba, Harris, Wolf Creek, Saint Lucie, Point Beach, Oyster Creek, Watts Bar, Hope Creek, Grand Gulf, Cooper, Sequoyah, Byron, Pilgrim, Arkansas Nuclear, Three Mile Island, Braidwood, Susquehanna, Summer, Prairie Island, Columbia, Seabrook, Brunswick, Surry, Limerick, North Anna, Turkey Point, River Bend, Vermont Yankee, Crystal River, Haddam Neck, Ginna, Diablo Canyon, Callaway, Vogtle, Waterford, Duane Arnold, Farley, Robinson, Clinton, South Texas, San Onofre, Cook, Comanche Peak, Yankee Rowe, Maine Yankee, Quad Cities, Humboldt Bay, La Crosse, Big Rock Point, Rancho Seco, Zion, Midland, Bellefonte, Fort Calhoun, FitzPatrick, McGuire, LaSalle, Fort Saint Vrain, Shoreham, Satsop, Trojan, Atlantic Nuclear Power Plant ![Entergy icon.png](/w/images/7/79/Entergy_icon.png) |
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Issue date: |
10/30/1996 |
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From: |
Martin T Office of Nuclear Reactor Regulation |
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To: |
|
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References |
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IN-96-058, NUDOCS 9610250137 |
Download: ML031050560 (7) |
|
Similar Documents at Beaver Valley, Millstone, Hatch, Monticello, Calvert Cliffs, Dresden, Davis Besse, Peach Bottom, Browns Ferry, Salem, Oconee, Mcguire, Nine Mile Point, Palisades, Palo Verde, Perry, Indian Point, Fermi, Kewaunee, Catawba, Harris, Wolf Creek, Saint Lucie, Point Beach, Oyster Creek, Watts Bar, Hope Creek, Grand Gulf, Cooper, Sequoyah, Byron, Pilgrim, Arkansas Nuclear, Three Mile Island, Braidwood, Susquehanna, Summer, Prairie Island, Columbia, Seabrook, Brunswick, Surry, Limerick, North Anna, Turkey Point, River Bend, Vermont Yankee, Crystal River, Haddam Neck, Ginna, Diablo Canyon, Callaway, Vogtle, Waterford, Duane Arnold, Farley, Robinson, Clinton, South Texas, San Onofre, Cook, Comanche Peak, Yankee Rowe, Maine Yankee, Quad Cities, Humboldt Bay, La Crosse, Big Rock Point, Rancho Seco, Zion, Midland, Bellefonte, Fort Calhoun, FitzPatrick, McGuire, LaSalle, Fort Saint Vrain, Shoreham, Satsop, Trojan, Atlantic Nuclear Power Plant |
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Mclaughlin on NRC, Regarding NRC Information Notice 2006-13: Groundwater Contamination 2020-09-03 The following query condition could not be considered due to this wiki's restrictions on query size or depth: <code> [[:Beaver Valley]] OR [[:Millstone]] OR [[:Hatch]] OR [[:Monticello]] OR [[:Calvert Cliffs]] OR [[:Dresden]] OR [[:Davis Besse]] OR [[:Peach Bottom]] OR [[:Browns Ferry]] OR [[:Salem]] OR [[:Oconee]] OR [[:Mcguire]] OR [[:Nine Mile Point]] OR [[:Palisades]] OR [[:Palo Verde]] OR [[:Perry]] OR [[:Indian Point]] OR [[:Fermi]] OR [[:Kewaunee]] OR [[:Catawba]] OR [[:Harris]] OR [[:Wolf Creek]] OR [[:Saint Lucie]] OR [[:Point Beach]] OR [[:Oyster Creek]] OR [[:Watts Bar]] OR [[:Hope Creek]] OR [[:Grand Gulf]] OR [[:Cooper]] OR [[:Sequoyah]] OR [[:Byron]] OR [[:Pilgrim]] OR [[:Arkansas Nuclear]] OR [[:Three Mile Island]] OR [[:Braidwood]] OR [[:Susquehanna]] OR [[:Summer]] OR [[:Prairie Island]] OR [[:Columbia]] OR [[:Seabrook]] OR [[:Brunswick]] OR [[:Surry]] OR [[:Limerick]] OR [[:North Anna]] OR [[:Turkey Point]] OR [[:River Bend]] OR [[:Vermont Yankee]] OR [[:Crystal River]] OR [[:Haddam Neck]] OR [[:Ginna]] OR [[:Diablo Canyon]] OR [[:Callaway]] OR [[:Vogtle]] OR [[:Waterford]] OR [[:Duane Arnold]] OR [[:Farley]] OR [[:Robinson]] OR [[:Clinton]] OR [[:South Texas]] OR [[:San Onofre]] OR [[:Cook]] OR [[:Comanche Peak]] OR [[:Yankee Rowe]] OR [[:Maine Yankee]] OR [[:Quad Cities]] OR [[:Humboldt Bay]] OR [[:La Crosse]] OR [[:Big Rock Point]] OR [[:Rancho Seco]] OR [[:Zion]] OR [[:Midland]] OR [[:Bellefonte]] OR [[:Fort Calhoun]] OR [[:FitzPatrick]] OR [[:McGuire]] OR [[:LaSalle]] OR [[:Fort Saint Vrain]] OR [[:Shoreham]] OR [[:Satsop]] OR [[:Trojan]] OR [[:Atlantic Nuclear Power Plant]] </code>.
[Table view]The following query condition could not be considered due to this wiki's restrictions on query size or depth: <code> [[:Beaver Valley]] OR [[:Millstone]] OR [[:Hatch]] OR [[:Monticello]] OR [[:Calvert Cliffs]] OR [[:Dresden]] OR [[:Davis Besse]] OR [[:Peach Bottom]] OR [[:Browns Ferry]] OR [[:Salem]] OR [[:Oconee]] OR [[:Mcguire]] OR [[:Nine Mile Point]] OR [[:Palisades]] OR [[:Palo Verde]] OR [[:Perry]] OR [[:Indian Point]] OR [[:Fermi]] OR [[:Kewaunee]] OR [[:Catawba]] OR [[:Harris]] OR [[:Wolf Creek]] OR [[:Saint Lucie]] OR [[:Point Beach]] OR [[:Oyster Creek]] OR [[:Watts Bar]] OR [[:Hope Creek]] OR [[:Grand Gulf]] OR [[:Cooper]] OR [[:Sequoyah]] OR [[:Byron]] OR [[:Pilgrim]] OR [[:Arkansas Nuclear]] OR [[:Three Mile Island]] OR [[:Braidwood]] OR [[:Susquehanna]] OR [[:Summer]] OR [[:Prairie Island]] OR [[:Columbia]] OR [[:Seabrook]] OR [[:Brunswick]] OR [[:Surry]] OR [[:Limerick]] OR [[:North Anna]] OR [[:Turkey Point]] OR [[:River Bend]] OR [[:Vermont Yankee]] OR [[:Crystal River]] OR [[:Haddam Neck]] OR [[:Ginna]] OR [[:Diablo Canyon]] OR [[:Callaway]] OR [[:Vogtle]] OR [[:Waterford]] OR [[:Duane Arnold]] OR [[:Farley]] OR [[:Robinson]] OR [[:Clinton]] OR [[:South Texas]] OR [[:San Onofre]] OR [[:Cook]] OR [[:Comanche Peak]] OR [[:Yankee Rowe]] OR [[:Maine Yankee]] OR [[:Quad Cities]] OR [[:Humboldt Bay]] OR [[:La Crosse]] OR [[:Big Rock Point]] OR [[:Rancho Seco]] OR [[:Zion]] OR [[:Midland]] OR [[:Bellefonte]] OR [[:Fort Calhoun]] OR [[:FitzPatrick]] OR [[:McGuire]] OR [[:LaSalle]] OR [[:Fort Saint Vrain]] OR [[:Shoreham]] OR [[:Satsop]] OR [[:Trojan]] OR [[:Atlantic Nuclear Power Plant]] </code>. |
I
UNITED STATES
NUCLEAR REGULATORY COMMISSION
OFFICE OF NUCLEAR REACTOR REGULATION
WASHINGTON, D.C. 20555-0001 October 30, 1996 NRC INFORMATION NOTICE 96-58: RCP SEAL REPLACEMENT WITH PUMP ON
BACKSEAT
Addressees
All holders of operating licenses or construction permits for pressurized-water reactors
(PWRs).
Purpose
The U.S. Nuclear Regulatory Commission (NRC) is issuing this information notice to alert
addressees to a potential problem during replacement of reactor coolant pump (RCP) seal
packages. It is expected that recipients will review the information for applicability to their
facilities and consider actions, as appropriate, to avoid similar problems. However, suggestions contained in this information notice are not NRC requirements; therefore, no
specific action or written response is required.
Description of Circumstances
On March 1, 1996, Sequoyah Unit I had a forced outage (Mode 5) to replace an RCP seal
package that had been leaking. The licensee elected to perform this maintenance activity
with the reactor coolant sy.sem (RCS) depressurized and the RCS level within the normal
pressurizer (PZR) level band. With RCS level in the PZR, the RCS maintenance boundary
for the seal replacement activity was provided by the weight of the pump impeller/shaft
assembly (approximately 6000 pounds) which had been placed on its backseat. To achieve
backseating, the RCP motor coupling bolts were loosened; this lowered the pump on its
backseat above the RCP thermal barrier housing.
Preceding the outage, site Engineering had determined that an upward pressure of
approximately 15 psig would lift the pump assembly off its backseat resulting in RCS leakage.
This information was never given to the operators. In addition, the operators were not given
specific guidance regarding the maximum PZR level or a PZR level operating range which
should be maintained to ensure that the static pressure of the RCS was less than the
pressure required to lift the impeller/shaft assembly off its backseat. Operators questioned
the lack of guidance and were subsequently given specific information regarding acceptable
PZR level.
960R25013 pot7y ci-osw0
9610250137 3 o l 1\
- 6'1
i~1 IN 96-58 October 30, 1996 Discussion
The Sequoyah RCPs (Westinghouse model Al 93S) were designed with a backseat that
provides an RCS pressure boundary to permit replacement of the seal package. The weight
of the impeller/shaft assembly provides pressure boundary control for this maintenance
activity. However, excessive RCS static head (high pressurizer level) could lift the assembly
off its backseat, resulting in RCS leakage into the maintenance area.
The staff recognizes that by replacing the RCP seal with level in the pressurizer the licensee
avoids risks associated with reduced inventory or midloop operation. However, problems
associated with this operation also exist. Therefore, licensees may wish to consider
(1) determining a maximum pressurizer level to preclude unseating the pump, (2) providing
operators with control data that can be used with available instrumentation (e.g., pressurizer
level limits) to ensure that RCS pressure does not cause the impeller/shaft assembly to lift off
its seat, and (3) providing operators with cautions to prevent unwarranted safety injection into
the RCS which could increase the probability of lifting the pump intemals.
This information notice requires no specific action or written response. If you have any
questions about the information in this notice, please contact one of the technical contacts
listed below or the appropriate Office of Nuclear Reactor Regulation (NRR) project manager.
Thomas T. Martin, Director
, Division of Reactor Program Management
Office of Nuclear Reactor Regulation
Technical contacts: Robert D. Starkey, RII
(423) 842-8001 E-mail: drs@nrc.gov
William F. Burton, NRR
(301) 415-2853 E-mail: wfb@nrc.gov
Attachment: List of Recently Issued NRC Information Notices
47T-chw w r FL&X AJca kr
- Vt
% i.o I K>IK
Attachment
IN 96-58 October 30, 1996 LIST OF RECENTLY ISSUED
NRC INFORMATION NOTICES
Information Date of
Notice No. Subject Issuance Issued to
96-57 Incident-Reporting Require- 10/29/96 All U.S. Nuclear
ments Invohring Intakes, Regulatory Commission
During a 24-Hour Period licensees
That May Cause a Total
Effective Dose Equivalent
in Excess of 0.05 Sv
(5 rems)
96-56 Problems Associated with 10/22/96 All holders of OLs or
Testing, Tuning, or Reset- CPs for nuclear power
ting of Digital Control reactors
Systems While at Power
96-55 Inadequate Net Positive 10/22/96 All holders of OLs or
Suction Head of Emergency CPs for nuclear power
Core Cooling and Contain- reactors
ment Heat Removal Pumps
Under Design Basis Accident
Conditions
96-54 Vulnerability of Stainless 10/17/96 All materials licensees
Steel to Corrosion When
Sensitized
96-53 Retrofit to Amersham 660 10/15/96 All industrial radio- Posilock Radiography graphy licensees
Camera to Correct Incon- sistency in 10 CFR Part 34 Compatibility
95-04, Excessive Cooldown 10/11/96 All holders of OLs or CPs
Supp. 1 and Depressurization and vendors for nuclear
of the Reactor Coolant power reactors
System Following Loss
of Offsite Power
OL = Operating License
CP = Construction Permit
. K> IN 96-58 October30, 1996 Discussion
The Sequoyah RCPs (Westinghouse model Al 93S) were designed with a backseat that
provides an RCS pressure boundary to permit replacement of the seal package. The weight
of the impeller/shaft assembly provides pressure boundary control for this maintenance
activity. However, excessive RCS static head (high pressurizer level) could lift the assembly
off its backseat, resulting in RCS leakage into the maintenance area.
The staff recognizes that by replacing the RCP seal with level in the pressurizer the licensee
avoids risks associated with reduced inventory or midloop operation. However, problems
associated with this operation also exist. Therefore, licensees may wish to consider
(1) determining a maximum pressurizer level to preclude unseating the pump, (2) providing
operators with control data that can be used with available instrumentation (e.g., pressurizer
level limits) to ensure that RCS pressure does not cause the impeller/shaft assembly to lift off
its seat, and (3) providing operators with cautions to prevent unwarranted safety injection into
the RCS which could increase the probability of lifting the pump internals.
This information notice requires no specific action or written response. If you have any
questions about the information in this notice, please contact one of the technical contacts
listed below or the appropriate Office of Nuclear Reactor Regulation (NRR) project manager.
< original signed by D.B. Matthews
wThomas T. Martin, Director
fW Division of Reactor Program Management
Office of Nuclear Reactor Regulation
Technical contacts: Robert D. Starkey, RII
(423) 842-8001 E-mail: drs@nrc.gov
William F. Burton, NRR
(301) 415-2853 E-mail: wfb@nrc.gov
Attachment: List of Recently Issued NRC Information Notices
- SEE PREVIOUS CONCURRENCES
Tech Editor has reviewed and concurred on 10/2/96 DOCUMENT NAME: 96-58.IN
To receive a copy of ths document. Indicate hI the box: ACT - Copy w/o
attachmenVenclosure 'E - Copy w/attachmentlenclosure 'N' - No copy
OFFICE TECH CONTS IC:PECB:DRPM D:DRPM A I f l _ I
TMarT llV
NAME
DATE
fAurton*
RStarkey*
10/09/96 I
AChaffee*
10/23/96 10 M 96 OFFICIAL RECORD CO PY
IN 96- October , 1996 Discussion
The Sequoyah RCPs (Westinghouse model Al 93S) were designed with a backseat that
provides an RCS pressure boundary to permit replacement of the seal package. The weight
of the impeller/shaft assembly provides pressure boundary control for this maintenance
activity. However, excessive RCS static head (high pressurizer level) could lift the assembly
off its backseat, resulting in RCS leakage into the maintenance area.
The staff recognizes that by replacing the RCP seal with level in the pressurizer the licensee
avoids risks associated with reduced inventory or midloop operation. However, problems
associated with this operation also exist. Therefore, licensees may wish to consider (1)
determining a maximum pressurizer level to preclude unseating the pump, (2) providing
operators with control data that can be used with available instrumentation (e.g., pressurizer
level limits) to ensure that RCS pressure does not cause the impeller/shaft assembly to lift off
its seat, and (3) providing operators with cautions to prevent unwarranted safety injection into
the RCS which could increase the probability of lifting the pump intemals.
This information notice requires no specific action or written response. If you have any
questions about the information in this notice, please contact one of the technical contacts
listed below or the appropriate Office of Nuclear Reactor Regulation (NRR) project manager.
Thomas T. Martin, Director
Division of Reactor Program Management
Office of Nuclear Reactor Regulation
Technical contacts: Robert D. Starkey, RIl
(423) 842-8001 E-mail: drs@nrc.gov
William F. Burton, NRR
(301) 415-2853 E-mail: wfb@nrc.gov
Attachment: List of Recently Issued NRC Information Notices
- SEE PREVIOUS CONCURRENCES
DOCUMENT NAME: G:\WFBISEQ_RCPL.EAK
To receive ei copy of this document, indicate in the box C=Copy wlo attachmentlendosure E=Copy with attachmentlendosure N = No copy
OFFICE RII/NRR NRR/PECB SRXB BC/PE DDRPM
NAME RStarkey* WBurton:jkd* RJones>, AChAffte TMartin
MShuaibi* (a?_
DATE 10/09/96 10/10/96 10t
O/96 10/.l96 10/ /96 UN-IKAL KtL;UK(U bUI'
Jo4
- isIN 96- October , 1996 Discussion
The Sequoyah RCPs (Westinghouse model Al 93S) were designed with a backseat that
provides an RCS pressure boundary to permit replacement of the seal package. The weig
of the impeller/shaft assembly provides pressure boundary control for this maintenance
activity. However, excessive RCS static head (high pressurizer level) could lift the as mbly
off its backseat, resulting in RCS leakage into the maintenance area.
The staff recognizes that by replacing the RCP seal with level in the pressuriz the licensee
avoids risks associated with reduced inventory or midloop operation. Howev r, problems
associated with this operation also exist. Therefore, licensees may wish t consider (1)
determining a maximum pressurizer level to preclude unseating the pu , (2) providing
operators with control data that can be used with available instrument ion (e.g., pressurizer
level limits) to ensure that RCS pressure does not cause the impell shaft assembly to lift off
its seat, and (3) providing operators with cautions to prevent unw anted safety injection into
the RCS which could increase the probability of lifting the pump' temals.
This information notice requires no specific action or written esponse. If you have any
questions about the information in this notice, please cont one of the technical contacts
listed below or the appropriate Office of Nuclear Reactor egulation (NRR) project manager.
T mas T. Martin, Director
vision of Reactor Program Management
ffice of Nuclear Reactor Regulation
Technical contacts: Robert D. Starkey, RI
(423) 8424001 E-mail: drs@nrc.ov
William F. Bu n, NRR
(301) 415-2 3 E-mail: @nrc.gov
Attachment: List of Recen Issued NRC Information Notices
DOCUMENT NAME: G:\ B\SEQRCPL.EAK
To receive a copy of this documentM Mdi Inthe box C=Copy wlo attachment/enclosure E=Copy with attachment/enclosure N = No copy
OFFICE RII/NRR NRR/PECB BC/PECB DDRPMI
NAME RStarkey* / WBurton:jkd* AChaffee TMartin
MShuaibi*.
DATE 10/09196 / 10/10196 / 10/ /96 10/ /96 OFFICIAL RECORD COPY
/ /41 4 g)
I- I -y ,i
OFFICE lRII/NRR 1 NRR/PECB I BC/PECB I D/DRPM / l
NAME RStark lWBurton:jkd { AChaffee TMart
MShuaiDE
1 / 1/ / /
DATE I10/ct/96 IM/96 1 0/ /96- ,4' /96 1 OFFICIAL RECORD COPY
ROUTING AND TRANSMITTAL SLIP FOR NRR/PE
DOCUMENT NAME: G:\WFB\SEQRCPL.EAK /
ORIGINATOR: BUTCH BURTON
SUBJECT: RCP SEAL REPLACEMENT WITH PUMP BACKSEAT
NAME CONCURRENCE
1. W. Burton - concurrence
2. R. Starkey - concurrence
3. M. Shuaibi - concurrence 7 / (CA
4. Tech Editor - concurre e
5. E. Goodwin - concur ence
6. A. Chaffee - co currence
7. T. Martin - c ncurrence
8. J. Delgado . Bowden/
M. McMal ister - dispatch
NTACT: B. Burton- (WFB) - 415-2853 MAIL STOP O/11E4
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list | - Information Notice 1996-01, Potential For High Post-Accident Closed-Cycle Cooling Water Temperatures to Disable Equipment Important to Safety (3 January 1996)
- Information Notice 1996-01, Potential for High Post-Accident Closed-Cycle Cooling Water Temperatures to Disable Equipment Important to Safety (3 January 1996)
- Information Notice 1996-02, Inoperability of Power-Operated Relief Valves Masked by Downstream Indications During Testing (5 January 1996, Topic: Stroke time)
- Information Notice 1996-03, Main Steam Safety Valve Setpoint Variation as a Result of Thermal Effects (5 January 1996)
- Information Notice 1996-03, Main Steam Safety Valve Setpoint Variation As a Result of Thermal Effects (5 January 1996)
- Information Notice 1996-04, Incident Reporting Requirements for Radiography Licensees (10 January 1996, Topic: Brachytherapy)
- Information Notice 1996-05, Partial Bypass of Shutdown Cooling Flow from Reactor Vessel (18 January 1996, Topic: Reactor Vessel Water Level)
- Information Notice 1996-06, Design & Testing Deficiencies of Tornado Dampers at Nuclear Power Plants (25 January 1996)
- Information Notice 1996-07, Slow Five Percent Scram Insertion Times Caused by Viton Diaphragms in Scram Solenoid Pilot Valves (26 January 1996)
- Information Notice 1996-08, Thermally Induced Pressure Locking of a High Pressure Coolant Injection Gate Valve (5 February 1996, Topic: Anchor Darling, Cold shutdown justification)
- Information Notice 1996-09, Damage in Foreign Steam Generator Internals (12 February 1996, Topic: Earthquake)
- Information Notice 1996-10, Potential Blockage by Debris of Safety System Piping Which Is Not Used During Normal Operation or Tested During Surveillances (13 February 1996)
- Information Notice 1996-10, Potential Blockage by Debris of Safety System Piping Which is Not Used During Normal Operation or Tested During Surveillances (13 February 1996)
- Information Notice 1996-11, Ingress of Demineralizer Resins Increases Potential For Stress Corrosion Cracking of Control Rod Drive Mechanism Penetrations (14 February 1996)
- Information Notice 1996-11, Ingress of Demineralizer Resins Increases Potential for Stress Corrosion Cracking of Control Rod Drive Mechanism Penetrations (14 February 1996)
- Information Notice 1996-12, Control Rod Insertion Problems (15 February 1996)
- Information Notice 1996-13, Potential Containment Leak Paths Through Hydrogen Analysis (26 February 1996)
- Information Notice 1996-14, Degradation of Radwaste Facility Equipment at Millstone Nuclear Power Station, Unit 1 (1 March 1996)
- Information Notice 1996-15, Unexpected Plant Performance During Performance of New Surveillance (8 March 1996)
- Information Notice 1996-16, BWR Operation with Indicated Flow Less than Natural Circulation (14 March 1996)
- Information Notice 1996-17, Reactor Operation Inconsistent with the Updated Final Safety Analysis Report (18 March 1996)
- Information Notice 1996-18, Compliance with 10 CFR Part 20 for Airborne Thorium (25 March 1996, Topic: Brachytherapy)
- Information Notice 1996-19, Failure of Tone Alert Radios to Activate When Receiving a Shortened Activation Signal (2 April 1996)
- Information Notice 1996-20, Demonstration of Associated Equipment Compliance with 10 CFR 34.20 (4 April 1996, Topic: Brachytherapy)
- Information Notice 1996-21, Safety Concerns Related to the Design of the Door Interlock Circuit on Nucletron High-Dose Rate and Pulsed Dose Rate Remote Afterloading Brachytherapy Devices (10 April 1996, Topic: Brachytherapy)
- Information Notice 1996-22, Improper Equipment Settings Due to Use of Nontemperature-Compensated Test Equipment (11 April 1996, Topic: Brachytherapy)
- Information Notice 1996-23, Fires in Emergency Diesel Generator Exciters During Operation Following Undetected Fuse Blowing (22 April 1996, Topic: Brachytherapy)
- Information Notice 1996-24, Preconditioning of Molded-Case Circuit Breakers Before Surveillance Testing (25 April 1996, Topic: Brachytherapy)
- Information Notice 1996-25, Traversing In-Core Probe Overwithdrawn at Lasalle County Station, Unit 1 (30 April 1996, Topic: Brachytherapy)
- Information Notice 1996-26, Recent Problems with Overhead Cranes (30 April 1996, Topic: Brachytherapy)
- Information Notice 1996-26, Recent Problems With Overhead Cranes (30 April 1996)
- Information Notice 1996-27, Potential Clogging of High Pressure Safety Injection Throttle Valves During Recirculation (1 May 1996, Topic: Brachytherapy)
- Information Notice 1996-28, Suggested Guidance Relating to Development and Implementation of Corrective Action (1 May 1996, Topic: Brachytherapy)
- Information Notice 1996-29, Requirements in 10 CFR Part 21 for Reporting and Evaluating Software Errors (20 May 1996, Topic: Brachytherapy)
- Information Notice 1996-30, Inaccuracy of Diagnostic Equipment for Motor-Operated Butterfly Valves (21 May 1996)
- Information Notice 1996-31, Cross-Tied Safety Injection Accumulators (22 May 1996)
- Information Notice 1996-32, Implementation of 10 CFR 50.55a(g) (6) (II) (A), Augmented Examination of Reactor Vessel (5 June 1996, Topic: Non-Destructive Examination)
- Information Notice 1996-32, Implementation of 10 CFR 50.55a(g) (6) (ii) (A), Augmented Examination of Reactor Vessel (5 June 1996, Topic: Nondestructive Examination)
- Information Notice 1996-33, Erroneous Data From Defective Thermocouple Results in a Fire (24 May 1996, Topic: Reverse polarity)
- Information Notice 1996-33, Erroneous Data from Defective Thermocouple Results in a Fire (24 May 1996, Topic: Reverse polarity)
- Information Notice 1996-34, Hydrogen Gas Ignition During Closure Welding of a VSC-24 Multi-Assembly Sealed Basket (31 May 1996)
- Information Notice 1996-35, Failure of Safety Systems on Self-Shielded Irradiators Because of Inadequate Maintenance and Training (11 June 1996)
- Information Notice 1996-36, Degradation of Cooling Water Systems Due to Icing (12 June 1996, Topic: High winds, Ultimate heat sink, Frazil ice)
- Information Notice 1996-37, Inaccurate Reactor Water Level Indication and Inadvertent Draindown During Shutdown (18 June 1996, Topic: Reactor Vessel Water Level)
- Information Notice 1996-38, Results of Steam Generator Tube Examinations (21 June 1996)
- Information Notice 1996-39, Estimates of Decay Heat Using ANS 5.1 Decay Heat Standard May Vary Significantly (5 July 1996)
- Information Notice 1996-40, Defciencies in Material Dedication and Procurement Practices and in Audits of Vendors (7 October 1996, Topic: Coatings, Troxler Moisture Density Gauge)
- Information Notice 1996-41, Effects of a Decrease in Feedwater Temperature on Nuclear Instrumentation (26 July 1996)
- Information Notice 1996-42, Unexpected Opening of Multiple Safety Relief Valves (5 August 1996, Topic: Reactor Vessel Water Level)
- Information Notice 1996-43, Failures of General Electric Magne-Blast Circuit Breakers (2 August 1996)
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