Office for Nuclear Regulation & Environment Agency

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GDA issues & Resolution Plans

On this page you will find detail of each GDA Issue, associated Resolution Plans and, where appropriate, detail of the closure of Issues for the AP1000®.

GDA Issue GDA Issue Ref Resolution Plan Revised Resolution Plan Schedules or Revised Resolution Plans Closure report
Internal Hazards
Internal Fire Safety Case Substantiation GI-AP1000-IH-01 GDA Issue GI-AP1000-IH-01
Resolution Plan
GI-AP1000-IH-01
Revised Resolution Plan
GI-AP1000-IH-01
Closure Report
Internal Flooding Safety Case GI-AP1000-IH-02 GDA Issue GI-AP1000-IH-02
Resolution Plan
GI-AP1000-IH-02
Revised Resolution Plan
GI-AP1000-IH-02
Closure Report
Pressure Part Failure GI-AP1000-IH-03 GDA Issue GI-AP1000-IH-03
Resolution Plan
GI-AP1000-IH-03
Revised Resolution Plan
GI-AP1000-IH-03
Closure Report
Internal Explosion Safety Case Substantiation GI-AP1000-IH-04 GDA Issue GI-AP1000-IH-04
Resolution Plan
GI-AP1000-IH-04
Revised Resolution Plan
GI-AP1000-IH-04
Closure Report
Internal Missile Safety Case GI-AP1000-IH-05 GDA Issue GI-AP1000-IH-05
Resolution Plan
GI-AP1000-IH-05
Revised Resolution Plan
GI-AP1000-IH-05
Closure Report
Substantiation and Analysis of the Consequences of Dropped Loads and Impact from Lifting Equipment Included Within the AP1000 Design GI-AP1000-IH-06 GDA Issue GI-AP1000-IH-06
Resolution Plan
GI-AP1000-IH-06
Revised Resolution Plan
GI-AP1000-IH-06
Closure Report
Civil Engineering
Justification of Novel Form of Structure for the Steel/ Concrete Composite Walls and Floors Known as CA Modules GI-AP1000-CE-01 GDA Issue GI-AP1000-CE-01
Resolution Plan
GI-AP1000-CE-01
Revised Resolution Plan
GI-AP1000-CE-01
Closure Report
Further Justification of Novel Form of Structure for Steel / Concrete Composite Wall to the Enhanced Shield Building GI-AP1000-CE-02 GDA Issue GI-AP1000-CE-02
Resolution Plan
GI-AP1000-CE-02
Revised Resolution Plan
GI-AP1000-CE-02
Closure Report
AP1000 Material Standards and Material Specifications GI-AP1000-CE-03 GDA Issue GI-AP1000-CE-03
Resolution Plan
GI-AP1000-CE-03
Revised Resolution Plan
GI-AP1000-CE-03
Closure Report
Fuel Handling Area Secondary Containment Leak Detection and Collection System GI-AP1000-CE-04 GDA Issue GI-AP1000-CE-04
Resolution Plan
GI-AP1000-CE-04
Revised Resolution Plan
GI-AP1000-CE-04
Closure Report
Probabilistic Safety Analysis (PSA)
Success Criteria for the PSA GI-AP1000-PSA-01 GDA Issue GI-AP1000-PSA-01
Resolution Plan
GI-AP1000-PSA-01
Revised Resolution Plan
GI-AP1000-PSA-01
Closure Report
Fire PSA GI-AP1000-PSA-02 GDA Issue GI-AP1000-PSA-02
Resolution Plan
GI-AP1000-PSA-02
Revised Resolution Plan
GI-AP1000-PSA-02
Closure Report
Fault Studies
Spent Fuel Pool Safety Case GI-AP1000-FS-01 GDA Issue GI-AP1000-FS-01
Resolution Plan
GI-AP1000-FS-01
Revised Resolution Plan
GI-AP1000-FS-01
Closure Report
Design Reference Point and Adequacy of Design Basis Analysis GI-AP1000-FS-02 GDA Issue GI-AP1000-FS-02
Resolution Plan
GI-AP1000-FS-02
Revised Resolution Plan
GI-AP1000-FS-02
Closure Report
Diversity for Frequent Faults GI-AP1000-FS-03 GDA Issue GI-AP1000-FS-03
Resolution Plan
GI-AP1000-FS-03
Revised Resolution Plan
GI-AP1000-FS-03
Closure Report
Use of In-core Detectors to Protect Against Adverse Power Distributions GI-AP1000-FS-04 GDA Issue GI-AP1000-FS-04
Resolution Plan
GI-AP1000-FS-04
Revised Resolution Plan
GI-AP1000-FS-04
Closure Report
Potential Enhancements to the Diverse Safety Injection System GI-AP1000-FS-05 GDA Issue GI-AP1000-FS-05
Resolution Plan
GI-AP1000-FS-05
Revised Resolution Plan
GI-AP1000-FS-05
Closure Report
Validation of the IRWST Cooling Function for the PRHR GI-AP1000-FS-06 GDA Issue GI-AP1000-FS-06
Resolution Plan
GI-AP1000-FS-06
Revised Resolution Plan
GI-AP1000-FS-06
Closure Report
Safety Case for Shutdown Faults GI-AP1000-FS-07 GDA Issue GI-AP1000-FS-07
Resolution Plan
GI-AP1000-FS-07
Revised Resolution Plan
GI-AP1000-FS-07
Closure Report
Fault Schedule for AP1000 GI-AP1000-FS-08 GDA Issue GI-AP1000-FS-08
Resolution Plan
GI-AP1000-FS-08
Revised Resolution Plan
GI-AP1000-FS-08
Closure Report
Control & Instrumentation
Adequacy of Safety Case for DAS GI-AP1000-CI-01 GDA Issue GI-AP1000-CI-01
Resolution Plan
GI-AP1000-CI-01
Revised Resolution Plan
GI-AP1000-CI-01
Closure Report
DAS Adequacy of Architecture GI-AP1000-CI-02 GDA Issue GI-AP1000-CI-02
Resolution Plan
GI-AP1000-CI-02
Revised Resolution Plan
GI-AP1000-CI-02
Closure Report
Diversity Between the PMS (CIM) and DAS GI-AP1000-CI-03 GDA Issue GI-AP1000-CI-03
Resolution Plan
GI-AP1000-CI-03
Revised Resolution Plan
GI-AP1000-CI-03
Closure Report
PMS Spurious Operation GI-AP1000-CI-04 GDA Issue GI-AP1000-CI-04
Resolution Plan
GI-AP1000-CI-04
Revised Resolution Plan
GI-AP1000-CI-04
Closure Report
SMART Device Justification for Use GI-AP1000-CI-05 GDA Issue GI-AP1000-CI-05
Resolution Plan
GI-AP1000-CI-05
Revised Resolution Plan
GI-AP1000-CI-05
Closure Report
Ovation Platform - Adequacy of Safety Case GI-AP1000-CI-06 GDA Issue GI-AP1000-CI-06
Resolution Plan
GI-AP1000-CI-06
Revised Resolution Plan
GI-AP1000-CI-06
Closure Report
DCIS - Adequacy of Safety Case GI-AP1000-CI-07 GDA Issue GI-AP1000-CI-07
Resolution Plan
GI-AP1000-CI-07
Revised Resolution Plan
GI-AP1000-CI-07
Closure Report
PMS - Adequacy of Safety Case GI-AP1000-CI-08 GDA Issue GI-AP1000-CI-08
Resolution Plan
GI-AP1000-CI-08
Revised Resolution Plan
GI-AP1000-CI-08
Closure Report
CIM - Adequacy of Safety Case GI-AP1000-CI-09 GDA Issue GI-AP1000-CI-09
Resolution Plan
GI-AP1000-CI-09
Revised Resolution Plan
GI-AP1000-CI-09
Closure Report
Class 1 Displays and Controls GI-AP1000-CI-010 GDA Issue GI-AP1000-CI-010
Resolution Plan
GI-AP1000-CI-010
Revised Resolution Plan
GI-AP1000-CI-010
Closure Report
Essential Electrical Systems
PCSR Presentation of Claims Arguments and Evidence GI-AP1000-EE-01 GDA Issue GI-AP1000-EE-01
Resolution Plan
GI-AP1000-EE-01
Revised Resolution Plan
GI-AP1000-EE-01
Closure Report
Fuel Design
Fuel Pin Modelling Safety Justification GI-AP1000-FD-01 GDA Issue GI-AP1000-FD-01
Resolution Plan
GI-AP1000-FD-01
Revised Resolution Plan
GI-AP1000-FD-01
Closure Report
Tolerability of Depressurisation Forces in LBLOCA GI-AP1000-FD-02 GDA Issue GI-AP1000-FD-02
Resolution Plan
GI-AP1000-FD-02
Revised Resolution Plan
GI-AP1000-FD-02
Closure Report
Use of the BEACON Code for On-line Compliance GI-AP1000-FD-03 GDA Issue GI-AP1000-FD-03
Resolution Plan
GI-AP1000-FD-03
Revised Resolution Plan
GI-AP1000-FD-03
Closure Report
Reactor Chemistry
Accident Source Terms GI-AP1000-RC-01 GDA Issue GI-AP1000-RC-01
Resolution Plan
GI-AP1000-RC-01
Revised Resolution Plan
GI-AP1000-RC-01
Closure Report
Primary Sampling System GI-AP1000-RC-02 GDA Issue GI-AP1000-RC-02
Resolution Plan
GI-AP1000-RC-02
Revised Resolution Plan
GI-AP1000-RC-02
Closure Report
Hydrogen Dosing System GI-AP1000-RC-03 GDA Issue GI-AP1000-RC-03
Resolution Plan
GI-AP1000-RC-03
Revised Resolution Plan
GI-AP1000-RC-03
Closure Report
Radiation Protection
Spent Fuel Pool Criticality Safety Case GI-AP1000-RP-01 GDA Issue GI-AP1000-RP-01
Resolution Plan
GI-AP1000-RP-01
Revised Resolution Plan
GI-AP1000-RP-01
Closure Report
Mechanical Engineering
Squib Valve Concept and Design Substantiation GI-AP1000-ME-01 GDA Issue GI-AP1000-ME-01
Resolution Plan
GI-AP1000-ME-01
Revised Resolution Plan
GI-AP1000-ME-01
Closure Report
Metrication of Mechanical Equipment and Civil Structural Steelwork Connections GI-AP1000-ME-02 GDA Issue GI-AP1000-ME-02
Resolution Plan
GI-AP1000-ME-02
Revised Resolution Plan
GI-AP1000-ME-02
Closure Report
Mechanical System Pipework Design GI-AP1000-ME-03 GDA Issue GI-AP1000-ME-03
Resolution Plan
GI-AP1000-ME-03
Revised Resolution Plan
GI-AP1000-ME-03
Closure Report
Structural Integrity
Avoidance of Fracture GI-AP1000-SI-01 GDA Issue GI-AP1000-SI-01
Resolution Plan
GI-AP1000-SI-01
Revised Resolution Plan
GI-AP1000-SI-01
Closure Report
Fatigue Analysis GI-AP1000-SI-02 GDA Issue GI-AP1000-SI-02
Resolution Plan
GI-AP1000-SI-02
Revised Resolution Plan
GI-AP1000-SI-02
Closure Report
Reactor Coolant Pump GI-AP1000-SI-03 GDA Issue GI-AP1000-SI-03
Resolution Plan
GI-AP1000-SI-03
Revised Resolution Plan
GI-AP1000-SI-03
Closure Report
Containment Vessel GI-AP1000-SI-04 GDA Issue GI-AP1000-SI-04
Resolution Plan
GI-AP1000-SI-04
Revised Resolution Plan
GI-AP1000-SI-04
Closure Report
Compliance of AP1000 Main Structural Components with ASME III Design Rules GI-AP1000-SI-05 GDA Issue GI-AP1000-SI-05
Resolution Plan
GI-AP1000-SI-05
Revised Resolution Plan
GI-AP1000-SI-05
Closure Report
Categorisation and Classification GI-AP1000-SI-06 GDA Issue GI-AP1000-SI-06
Resolution Plan
GI-AP1000-SI-06
Revised Resolution Plan
GI-AP1000-SI-06
Closure Report
Human Factors
Completeness of the HF Safety Case GI-AP1000-HF-01 GDA Issue GI-AP1000-HF-01
Resolution Plan
GI-AP1000-HF-01
Revised Resolution Plan
GI-AP1000-HF-01
Closure Report
Cross-Cutting
Limits and Conditions GI-AP1000-CC-01 GDA Issue GI-AP1000-CC-01
Resolution Plan
GI-AP1000-CC-01
Revised Resolution Plan
GI-AP1000-CC-01
Closure Report
PCSR to Support GDA GI-AP1000-CC-02 GDA Issue GI-AP1000-CC-02
Resolution Plan
GI-AP1000-CC-02
Revised Resolution Plan
GI-AP1000-CC-02
Closure Report
Consider and Action Plans to Address the Lessons Learnt from the Fukushima Event GI-AP1000-CC-03 GDA Issue GI-AP1000-CC-03 Resolution Plan GI-AP1000-CC-03
Revised Resolution Plan
GI-AP1000-CC-03
Closure Report