Errors in Use of Radioactive Iodine-131ML031130270 |
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: |
09/17/1990 |
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From: |
Cunningham R E NRC/NMSS/IMNS |
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To: |
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References |
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IN-90-059, NUDOCS 9009120156 |
Download: ML031130270 (8) |
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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>. |
UNITED STATES NUCLEAR REGULATORY
COMMISSION
OFFICE OF NUCLEAR MATERIALS
SAFETY AND SAFEGUARDS
WASHINGTON, D.C. 20555 September
17, 1990 NRC INFORMATION
NOTICE NO. 90-59: ERRORS IN THE USE OF RADIOACTIVE
IODINE-131
Addressees
All medical licensees.
Purpose
- This information
notice is intended to emphasize
to medical use licensees
the potential
radiation
dose levels resulting
from errors in the administration
of iodine-131 to humans. This issue was previously
addressed
in IE Information
Notice No. 85-61, Suppliment
1: Misadministrations
To Patients Undergoing
Thyroid Scans (attached).
Due to the significance
and frequency
of recurrence
of these errors, NRC believes this issue should be readdressed.
It is expected that licensees
will review this information
for application
to their own procedures
for the administration
of iodine-131, distribute
the notice to those responsible
for radiation
safety and quality assurance, and consider actions, if appropriate, to establish
procedures
to preclude the misadministration
of iodine-131 at their facilities.
However, suggestions
contained
in this notice do not constitute
any new U.S. Nuclear Regulatory
Commission (NRC) requirements, and no written response is required.Description
of Circumstances:
The following
cases are recent events reported to NRC that have resulted in unintended
radiation
doses to humans, as a result of the administration
of radioactive
iodine: Case 1: A patient with a history of thyroid cancer was scheduled
for her yearly whole-body
scan. Before the scan, the patient underwent
a pregnancy test, with negative results. After the pregnancy
test results were received, the technologist
began to complete a departmental
questionnaire
to obtain information
from the patient relative to the requested
procedure.
The questionnaire
addressed
the possibilities
of pregnancy
and lactation.
However, before completing
the questionnaire, the technologist
was called away and did not return to complete the form before administration
of the iodine-131.
As a result, the patient was given the intended dosage of 4.89 millicuries
of iodine-131.
Approximately
48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> later when the patient was scanned, there was considerable
iodine-131 uptake in her breasts. When questioned
by the physician, the patient indicated
that she had given birth to a female infant two weeks earlier and had been nursing this infant for approximately
the last 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />. The total body dose to the infant was estimated
to be 17 rads, and the radiation
dose to the infant's thyroid was estimated
to be 30,000 rads. A synthetic
thyroid hormone replacement
has been prescribed
for the child, with scheduled
periodic follow-ups.
The unintended
dose to the mother's breasts was estimated
to be 8.9 rads.> 920156 Z J 4 9_0we
IN 90-59 September
17, 1990 Case 2: A patient to be scheduled
for a thyroid scan was administered
3 millicuries
of iodine-131 instead of the intended dosage of 300 microcuries
of iodine-123.
The patient's
physician
called in the request for a thyroid scan to the secretary
of the nuclear medicine department, who inadvertently
scheduled
a whole-body
scan. No written request from the physician
was required.
The dosage at this facility for a whole-body
scan is 3 millicuries
of iodine-131, whereas the dosage for a thyroid scan is 300 microcuries
of iodine-123.
The estimated
dose to the patient's
thyroid gland due to this error was 4700 rads.Case 3: A patient was scheduled
for an ectopic thyroid evaluation, with an intended dosage of 100 microcuries
of iodine-131.
In completing
the Nuclear Medicine department
referral sheet, the referring
physician
incorrectly
requested
a post-thyroidectomy
neck scan. As a result, the patient was administered
1 millicurie
of iodine-131, with an estimated
dose to the thyroid of 1300 rads.Case 4: A patient was scheduled
for an ectopic thyroid evaluation, with an Intended dosage of 50 to 100 microcuries
of iodine-131.
The technologist
consulted
the department
procedure
manual that listed prescribed
dosages for specific scans, and the dosage was incorrectly
listed as 4.5 millicuries.
As a'result, the patient was administered
4.3 millicuries.
The estimated
dose'to this patient's
thyroid gland was 4300 rads.Case 5: A patient was administered
a dosage of 15 microcuries
of iodine-131.
Almost immediately
following
the administration, the patient indicated
to the technologist
that she was approximately
4 to 5 weeks pregnant..
The technologist
failed to ask the patient if she was pregnant before the administration.
The patient had arrived at the department
with a baby in her arms, and the technologist
assumed that the patient was not pregnant.
The total body dose to the fetus was estimated
to be 2 to 4 millirem.
Since the fetal thyroid is incapable
of concentrating
iodine-131 until approximately
12 weeks of gestation, it was estimated
that there was no additional
dose to the fetal thyroid.
DISCUSSION
All licensees
are reminded of the importance
of ensuring the safe performance
of licensed activities, in accordance
with NRC regulations, requirements
of their licenses, and accepted medical practice.
The forementioned
cases illustrate:
the lack of familiarity
with appropriate
thyroid studies and dosages; the necessity
of consistently
following
quality control procedures;
and a need to understand
the significance
of radiation
doses that result -from the administration
of millicuries
versus microcuries
of radiopharmaceuticals
containing
radioiodine.
Specifically, the radiation
dose to the thyroid, resulting
from a dosage of one millicurie
rather than one microcurie
of j .
IN 90-59 September
17, 1990 iodine-131, is a one thousand-fold
increase.
In addition, the radiation
dose received from an activity of iodine-131 is approximately-100
fold greater than the dose from the same activity of iodine-123.
The following
table illustrates
the relationship
between microcurie
versus millicurie
quantities
of iodine-131, as well as the radiation
dose differential
between iodine-123 and iodine-131, for three different
age groups, with a thyroid uptake of 15 percent.TABLE: 1 year 5 years Adult A Comparison
of IsQtopes and'Radiation
Doses for Various Age Groups Assuming 15% Uptake by the Thyroid*Rads per uqi Rads per mCi I-123 1-131 I-123 1-131 old 0.07 7.40 70.3 7400 old 0.04 4.07 40.0 4070 0.007 0.78 7.0 777...* Based on information
from ICRP-Publication
No. 53 All workers should have a clear understanding
of the significance
of errors.in scale when calculating
and preparing
diagnostic
dosages versus therapeutic
dosages of radiopharmaceuticals
containing
radioiodine.
The threshold
at which a diagnostic
dosage becomes a therapeutic
dosage is low, and depends on the age of the patient and the percent uptake by the patient's
thyroid gland.Consequently, the potential
for causing a significant, undesired
radiation dose to a patient's
thyroid gland must always be kept in mind when administering
iodine radiopharmaceuticals.
Licensees
are reminded that the package inserts provided by the manufacturers
contain information
pertinent
to both proper dosages and radiation
doses, and may be valuable resources
when reviewing
imaging policies and procedures
for errors and inconsistencies.
Nuclear medicine department
procedures
should include provisions
for questioning
female patients about the possibility
of pregnancy
or lactation.
By attention
to detail, and adherence
to departmental
policy and procedures, many incidents
involving
radioactive
iodine-131 may be avoided.
r-IN 90-59 September
17, 1990 No specific written response is required by this information
notice. If you have any questions
regarding
this matter, please contact the appropriate
regional office or this office.M r Cunnnhm, ro Division of Industrial
and Medical Nuclear Safety Office of Nuclear Material Safety and Safeguards
Technical
Contact: Sally Merchant, NMSS (301) 492-0637-Attachments:
1. List of Recently Issued NMSS Information
Notices.2. List of Recently Issued NRC Information
Notices.
Attachment
1 IN 90-59 September
17, 1990 LIST OF RECENTLY ISSUED HMSS INFORMATION
NOTICES Information
Date of Notice No. Subject Issuance Issued to: 90-50 Minimization
of Methane Gas in Plant Systems and Radwaste Shipping Containers
08/08/90 All holders licenses or permits for reactors of operating construction
nuclear power 90-44 Dose-Rate
Instruments
06/29/90 90-38 Requirements
for Processing
05/29/90 Financial
Assurance
Submittals
for Decommissioning
90-35 Transportation
of Type A-Quantities
of Non-Fissile
Radioactive
Materials 90-31 Update on Waste Form and High Integrity
Container Topical Report Review Status, Identification
of Problems with Cement Solidication, and Reporting
of Waste Mishaps 90-27 Clarification
of the Recent Revisions
to the Regulatory
Requirements
for Packaging
of Uranium Hexafluoride (UF 6 ) for Transportation
90-24 Transportation
of Model SPEC 2-T Radiographic
Exposure Device 90-20 Personnel
Injuries Resulting
from Improper Operation
of Radwaste Incinerators
05/24/90 05/04/90 04/30/90 04/10/90 03/22/90 All NRC licensees All fuel facility and materials All U.S. Nuclear Regulatory
Commission (NRC) Licensees All holders of operating licenses or construction
permits for nuclear power reactors, fuel cycle licenses, and certain byproduct
materials licenses All Uranium Fuel Fabrication
and Conversion
Facilities
All NRC licensees authorized
to use, transport, or operate radiographic
exposure devices and source changers All NRC licensees who process or incinerate
radioactive
waste
--Attachment
2 -IN-90-59 !September
17, 1990. LIST OF RECENTLY ISSUED NRC INFORMATION
NOTICES Information
Date of Notice No. Subject Issuance Issued to 90-58 90-57 90-56 90-55 83-44 Supp. 1 Improper Handling of Ophthalmic
Strontium-90
Beta Radiation
Applicators
Substandard, Refurbished
Potter & Brumfield
Relays Misrepresented
As New Inadvertent
Shipment of A Radioactive
Source In A Container
Thought To Be Empty Recent Operating
Experi-ence on Loss of Reactor Coolant Inventory
While In A Shutdown Condition Potential
Damage to Redundant
Safety Equip-ment As A Result of Backflow Through the Equipment
and Floor Drain System Summary of Requalification
Program Deficiencies
Criminal Prosecution
of Wrongdoing
Committed
by Suppliers
of Nuclear Products or Services Potential
Failures of Auxiliary
Steam Piping and the Possible Effects on the Operability
of Vital Equip-ment 9/11/90 9/5/90 9/4/90 8/31/90 8/30/90 8/28/90 8/24/90 8/16/90 All NRC medical licensees.
All holders of OLs or CPs for nuclear power reactors.All U.S. Nuclear Regulatory
Com-mission (NRC)licensees.
All holders of OLs or CPs for nuclear power reactors.All holders of OLs or CPs for nuclear power reactors.All holders of GLs or CPs for nuclear power reactors.All holders of OLs or CPs for nuclear power reactors.All holders of OLs or CPs for nuclear power reactors.90-54 89-18 Supp.1 90-53 OL = Operating
License CP = Construction
Permit
IN 90-September
,1990 No specific written response is required by this information
notice. If you have any questions
regarding
this matter, please contact the appropriate
regional office or this office.~4M zlgned #1 Richard Cunningham, Director Division of Industrial
and Medical Nuclear Safety Office of Nuclear Material Safety and Safeguards
Technical
Contact: Sally Merchant, NMSS (301) 492-0637 Attachments:
1. List of Recently Issued NMSS Information
Notices.2. List of Recently Issued NRC Information
Notices.E. Kraus/Tech.
Ed.8/21/90 1311
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list | - Information Notice 1990-01, Importance of Proper Response to Self-Identified Violations by Licensees (12 January 1990, Topic: Uranium Hexafluoride)
- Information Notice 1990-02, Potential Degradation of Secondary Containment (22 January 1990)
- Information Notice 1990-03, Malfunction of Borg-Warner Bolted Bonnet Check Valves Caused by Failure of the Swing Arm (23 January 1990, Topic: Liquid penetrant)
- Information Notice 1990-04, Cracking of the Upper Shell-to-Transition Cone Girth Welds in Steam Generators, (26 January 1990, Topic: Nondestructive Examination)
- Information Notice 1990-05, Inter-System Discharge of Reactor Coolant (29 January 1990)
- Information Notice 1990-06, Potential for Loss of Shutdown Cooling While at Low Reactor Coolant Levels (29 January 1990)
- Information Notice 1990-07, New Information Regarding Insulation Material Performance and Debris Blockage of PWR Containment Sumps (30 January 1990)
- Information Notice 1990-08, KR-85 Hazards from Decayed Fuel (1 February 1990)
- Information Notice 1990-08, KR-85 Hazards From Decayed Fuel (1 February 1990)
- Information Notice 1990-09, Extended Interim Storage of Low-Level Radioactive Waste by Fuel Cycle and Materials Licensees (5 February 1990, Topic: Decommissioning Funding Plan)
- Information Notice 1990-10, Primary Water Stress Corrosion Cracking (PWSCC) of Inconel 600 (23 February 1990, Topic: Boric Acid, Hydrostatic, Liquid penetrant)
- Information Notice 1990-10, Primary Water Stress Corrosion Cracking of Inconel 600 (23 February 1990, Topic: Boric Acid, Hydrostatic, Nondestructive Examination, Liquid penetrant)
- Information Notice 1990-11, Maintenance Deficiency Associated with Solenoid-Operated Valves (28 February 1990)
- Information Notice 1990-12, Monitoring or Interruption of Plant Communications (28 February 1990)
- Information Notice 1990-13, Importance of Review and Analysis of Safeguards Event Logs (5 March 1990)
- Information Notice 1990-14, Accidental Disposal of Radioactive Materials (6 March 1990, Topic: Brachytherapy)
- Information Notice 1990-15, Reciprocity Notification of Agreement State Radiation Control Directors Before Beginning Work in Agreement States (17 March 1990, Topic: Uranium Hexafluoride)
- Information Notice 1990-16, Compliance with New Decommissioning Rule (7 March 1990)
- Information Notice 1990-17, Weight and Center of Gravity Discrepancies for Copes-Vulcan Valves (8 March 1990, Topic: Earthquake)
- Information Notice 1990-18, Potential Problems with Crosby Safety Relief Valves Used on Diesel Generator Air Start Receiver Tanks (9 March 1990)
- Information Notice 1990-18, Potential Problems With Crosby Safety Relief Valves Used on Diesel Generator Air Start Receiver Tanks (9 March 1990)
- Information Notice 1990-19, Potential Loss of Effective Volume for Containment Recirculation Spray at PWR Facilities (14 March 1990)
- Information Notice 1990-20, Personnel Injuries Resulting from Improper Operation of Radwaste Incinerators (22 March 1990)
- Information Notice 1990-21, Potential Failure of Motor-Operated Butterfly Valves to Operate Because Valve Seat Friction was Underestimated (22 March 1990)
- Information Notice 1990-21, Potential Failure of Motor-Operated Butterfly Valves to Operate Because Valve Seat Friction Was Underestimated (22 March 1990)
- Information Notice 1990-22, Unanticipated Equipment Actuations Following Restoration of Power to Rosemount Transmitter Trip Units (23 March 1990, Topic: Reactor Vessel Water Level)
- Information Notice 1990-23, Improper Installation of Patel Conduit Seals (4 April 1990)
- Information Notice 1990-24, Transportation of Model Spec 2-T Radiographic Exposure Device (10 April 1990)
- Information Notice 1990-24, Transportation of Model SPEC 2-T Radiographic Exposure Device (10 April 1990)
- Information Notice 1990-25, Loss of Vital AC Power With Subsequent Reactor Coolant System Heat-Up (16 April 1990)
- Information Notice 1990-25, Loss of Vital AC Power with Subsequent Reactor Coolant System Heat-Up (16 April 1990)
- Information Notice 1990-26, Inadequate Flow of Essential Service Water to Room Coolers and Heat Exchangers for Engineered Safety-Feature Systems (24 April 1990)
- Information Notice 1990-27, Clarification of the Recent Revisions to the Regulatory Requirements for Packaging of Uranium Hexafluoride (UF6) for Transportation (30 April 1990)
- Information Notice 1990-28, Potential Error In High Steamline Flow Setpoint (30 April 1990)
- Information Notice 1990-28, Potential Error in High Steamline Flow Setpoint (30 April 1990)
- Information Notice 1990-29, Cracking of Cladding and Its Heat-Affected Zone in the Base Metal of a Reactor Vessel Head (30 April 1990, Topic: Nondestructive Examination, Liquid penetrant)
- Information Notice 1990-30, Ultrasonic Inspection Techniques for Dissimilar Metal Welds (1 May 1999, Topic: Dissimilar Metal Weld)
- Information Notice 1990-31, Update on Waste Form and High Integrity Container Topical Report Review Status, Identification of Problems with Cement Solidification, and Reporting of Waste Mishaps (4 May 1990, Topic: Process Control Program)
- Information Notice 1990-31, Update on Waste form and High Integrity Container Topical Report Review Status, Identification of Problems with Cement Solidification, and Reporting of Waste Mishaps (4 May 1990, Topic: Process Control Program)
- Information Notice 1990-32, Surface Crack and Subsurface Indications in the Weld of a Reactor Vessel Head (3 May 1990)
- Information Notice 1990-33, Sources of Unexpected Occupational Radiation Exposures at Spent Fuel Storage Pools (9 May 1990)
- Information Notice 1990-34, Response to False Siren Activations (10 May 1990)
- Information Notice 1990-35, Transportation of Type a Quantities of Non-Fissile Radioactive Materials (24 May 1990)
- Information Notice 1990-37, Sheared Pinion Gear-To-Shaft Keys in Limitorque Motor Actuators (24 May 1990)
- Information Notice 1990-38, License and Fee Requirements for Processing Financial Assurance Submittals for Decommissioning (6 November 1990, Topic: Authorized possession limits)
- Information Notice 1990-39, Recent Problems with Service Water Systems (1 June 1990)
- Information Notice 1990-40, Results of NRC-Sponsored Testing of Motor-Operated Valves (5 June 1990, Topic: Weak link)
- Information Notice 1990-41, Potential Failure of General Electric Magne-Blast Circuit Breakers and Ak Circuit Breakers (12 June 1990)
- Information Notice 1990-42, Failure of Electrical Power Equipment Due to Solar Magnetic Disturbances (19 June 1990)
- Information Notice 1990-43, Mechanical Interference with Thermal Trip Function in GE Molded-Case Circuit Breakers (29 June 1990)
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