IMMEDIATE ACTION: Complete this section within 15 minutes of alarm acknowledgment. Provide precise locator information to enable rapid sample recovery and chain-of-custody verification.
Facility Name & Building Code
Laboratory/Room Number
Freezer Unit Asset ID (Barcoded)
Freezer Manufacturer & Model
Freezer Serial Number
Freezer Type Classification
Liquid Nitrogen Bulk Tank (≥1000L)
Liquid Nitrogen Dewar (Portable)
Ultra-Low Temperature Mechanical (-80°C to -150°C)
Cryogenic Freezer (-150°C to -196°C)
LN2 Vapor Phase Storage System
Is this freezer part of a redundant banked system?
Total Number of Specimen Racks/Shelves in Unit
Primary Study Protocol Number(s) Affected
Sample Type Categories Stored (Select All Applicable)
Whole Blood & PBMCs
Plasma/Serum
DNA/RNA Extracts
Tissue Biopsies (FFPE/Frozen)
Cell Lines & Cultures
Viral/Bacterial Strains
Protein Lysates
Cerebrospinal Fluid
Urine/Saliva
Other Biospecimens
Estimated Total Sample Count in Unit
Sample Container Types (e.g., Cryovial, Straws, Boxes)
Detailed Sample Batch Locator Matrix
Rack/Shelf Position | Box ID/Barcode | Study Protocol Number | Sample Type | Sample Count in Box | Temperature Monitoring Probe ID | |
|---|---|---|---|---|---|---|
Are samples organized in a hierarchical inventory management system?
CHRONOLOGICAL ACCURACY IS CRITICAL: Document exact times from alarm initiation through resolution. All timestamps must be captured in 24-hour format with time zone specification.
Alarm Trigger Timestamp
Alarm Acknowledged by Lab Personnel
Time Delay Between Alarm Trigger and Acknowledgment (Minutes)
First Physical Verification of Unit Temperature
Temperature at Time of Alarm Trigger (°C)
Peak Temperature Recorded During Excursion (°C)
Current Temperature at Time of This Report (°C)
Target Storage Temperature (°C)
Temperature Deviation from Target (°C)
Did temperature exceed the critical viability threshold?
Alarm Notification Recipients & Response Times
Alarm System Type
Building Management System (BMS)
Standalone Wireless Monitoring (e.g., Temptime, Rees)
Manual Thermometer Observation
Integrated LIMS-Linked System
Audible/Visual Local Alarm Only
Was the alarm system validated and under current calibration?
Data Logger Serial Number & Last Download Timestamp
Upload Raw Data Logger Files (.csv, .txt, proprietary format)
Photograph of Freezer Display Panel at Time of Incident
Alarm Event Timeline Documentation
Event Time | Event Description | Personnel Involved | Action Taken | Outcome | |
|---|---|---|---|---|---|
12:00 AM | Alarm triggered | System | Automated alert sent | Pending acknowledgment | |
12:08 AM | Alarm acknowledged | Lab Manager | Initial assessment begun | Visual inspection initiated | |
EMERGENCY RESPONSE VERIFICATION: Document all actions taken to protect specimen integrity including immediate transfers, backup freezer activation, and transport conditions. Provide evidence of chain-of-custody maintenance.
Were samples emergency-transferred to a backup cryogenic unit?
Sample Transfer Initiation Timestamp
Sample Transfer Completion Timestamp
Total Transfer Duration (Minutes)
Transfer Personnel Names & Roles
Transfer Container Type Used
Portable Liquid Nitrogen Dewar
Dry Ice (-78°C) Insulated Shipper
Validated Cryogenic Transport Box
Temporary Storage in Another Banked Unit
On-Site Backup Freezer (Same Room)
Other Transport Method
Transport Container Temperature During Transfer (°C)
Was the backup freezer pre-qualified and temperature-mapped?
Were samples transported using validated SOP-compliant procedures?
Upload Chain-of-Custody Forms & Transfer Documentation
Photograph of Samples in Backup Freezer (showing organization & labeling)
Backup Cryo-Relocation Inventory Tracking
Original Box ID | New Box ID in Backup Unit | Rack Position (Original) | Rack Position (New) | All Samples Accounted For? | Discrepancies Noted | |
|---|---|---|---|---|---|---|
Did the transfer require opening multiple freezer units simultaneously?
BIOSPECIMEN INTEGRITY EVALUATION: Conduct thorough visual and analytical assessment of all affected specimens. Document any physical changes, container integrity issues, or labeling degradation. This assessment determines specimen usability for downstream clinical research applications.
Were all sample containers visually inspected post-incident?
Visual Integrity Checklist (Select All Observed)
No visible defects - all containers intact
Cracked or compromised cryovials
Distorted/broken tube caps
Label detachment or illegibility
Frost/ice accumulation inside containers
Evidence of thaw-refreeze (clumping, discoloration)
Container leakage or spillage
Cross-contamination between samples
Box/rack structural damage
Other physical anomalies
Sample Integrity Risk Assessment by Category
No Impact - Fully Intact | Minimal Impact - Likely Usable | Moderate Impact - Requires Testing | Severe Impact - Likely Compromised | Critical Impact - Unusable | |
|---|---|---|---|---|---|
DNA/RNA nucleic acid stability | |||||
Protein structural integrity | |||||
Cell viability (if applicable) | |||||
Microbial contamination risk | |||||
Labeling/traceability confidence |
Has a sample integrity testing plan been initiated?
Individual Sample Integrity Documentation (for compromised specimens)
Sample ID/Barcode | Study Protocol | Sample Type | Observed Defects | Integrity Score (1-5) | Recommended Disposition | |
|---|---|---|---|---|---|---|
Total Number of Samples Deemed 'High Risk' or 'Unusable'
Were any samples previously designated as 'critical' or 'irreplaceable'?
Upload Photographic Evidence of Compromised Samples (close-up images)
Has inventory reconciliation been completed against the LIMS/database?
Overall Specimen Integrity Summary & Risk Determination
REGULATORY & COMPLIANCE FINALIZATION: This section confirms official review, risk acceptance, and determination of corrective/preventive actions. Both Principal Investigator and QA Director must attest to the accuracy of incident documentation and appropriateness of specimen disposition decisions.
Principal Investigator Name
Principal Investigator Employee ID
PI Notification Timestamp
Did PI physically inspect the affected freezer/samples?
PI Assessment of Impact on Study Data Integrity & Participant Safety
PI Determination on Sample Usability
All samples acceptable for intended use
Some samples require integrity testing before use
Some samples must be destroyed/removed from study
All samples compromised - study impact assessment required
Pending further investigation - samples remain in quarantine
Quality Assurance Director Name
Quality Assurance Director Employee ID
QA Director Review Timestamp
QA Assessment of Incident Response Compliance
Non-Compliant - Major Deviation | Partially Compliant - Minor Deviation | Compliant - Meets Standards | Exceeds Requirements - Best Practice | Not Applicable | |
|---|---|---|---|---|---|
Timeliness of alarm response | |||||
Adequacy of sample protection measures | |||||
Completeness of documentation | |||||
Adherence to SOPs and protocols | |||||
Appropriateness of corrective actions |
Does this incident require external regulatory reporting?
Root Cause Analysis Summary
Corrective and Preventive Action (CAPA) Plan
Upload Supporting Documentation (service reports, calibration records, training certs)
Principal Investigator Digital Signature & Attestation
Quality Assurance Director Digital Signature & Approval
Final Incident Closure Date