Drone Record Retention Periods by Country: How Long Must You Keep Logs?

Regulatory audits aren't just about current compliance—they reach backward. The CAA, CASA, or EASA inspector arrives and demands: "Show me all flight records from the past X years." Many operators discover too late that they haven't kept records long enough. This guide details mandatory retention periods, what records matter, and how long you must store them.

Record Retention Summary

Record Type	UK	Germany	France	Netherlands	Sweden	Australia	New Zealand	Canada	Japan
Flight Logs	2 years	3 years	3 years	3 years	3 years	2 years (Pt 101) / 7 years (ReOC)	3 years (Pt 102) / Cert duration + 2	2 years	2 years
Maintenance Records	2 years	3 years	3 years	3 years	3 years	2 years / 7 years (ReOC)	3 years	2 years	2 years
Pilot Certificates	5 years (duration)	5 years (duration)	5 years (duration)	5 years (duration)	5 years (duration)	2 years + 1 after expiry	2 years + 1 after expiry	3 years + 1 after expiry	1 year + 1 after expiry
Insurance Policies	3 years	3 years	3 years	3 years	3 years	3 years	3 years	3 years	3 years
Risk Assessments (SORA)	Per operation	Per operation	Per operation	Per operation	Per operation	Per operation	Per operation	Per operation	2 years
Incident Reports	5 years	5 years	5 years	5 years	5 years	5 years	5 years	5 years	5 years
Operator Manual	Per version	Per version	Per version	Per version	Per version	Per version	Per version	Per version	Per version
Airspace Coordination	2 years	2 years	2 years	2 years	2 years	2 years	2 years	2 years	2 years
Personal Data (GDPR-applicable)	3 years + GDPR rules	3 years + GDPR rules	3 years + GDPR rules	3 years + GDPR rules	3 years + GDPR rules	2 years (Privacy Act)	2 years	2 years	2 years (APPI)

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United Kingdom (CAA Record Retention)

Flight Logs

Retention Period: 2 years minimum Authority Citation: CAP 393 Section 3.1, Small Unmanned Aircraft Order 2023 What Constitutes a Flight Log:

• Date, time of flight
• Location (airfield/coordinates)
• Aircraft registration
• Pilot name/license number
• Flight duration (minutes)
• Altitude flown (AGL)
• Weather conditions (wind, visibility)
• Any incidents/near-misses
• Photographic/data capture (if applicable)

Storage Requirements:

• Original or digital copy required
• Paper acceptable (if legible)
• Digital format: PDF, Excel, proprietary software (MmowW, etc.) all acceptable
• Must be retrievable within 24 hours for inspection

Enforcement:

• CAA inspection: Common during compliance audits
• Non-compliance: Fine £1,000–5,000 per missing record
• If flight operations documented elsewhere (project files, client timesheets), flight log specifics still required

Maintenance Records

Retention Period: 2 years minimum (or lifetime of aircraft) Authority Citation: CAP 393 Section 5.2, Maintenance Manual requirements What Must Be Recorded:
• Pre-flight inspection results (checklists)
• Maintenance performed (date, task, technician)
• Repairs (parts replaced, work order reference)
• Modifications/upgrades
• Battery cycles (if applicable)
• Propeller condition
• Motor/gimbal functionality tests
• Software updates/firmware versions

Storage Requirements:
• Digital or paper
• Must show maintenance timeline
• Technician signature/identification required
• Retention even after aircraft decommissioned (2 years post-retirement)

Pilot Certificates

Retention Period: Duration of certificate validity + 1 year after expiry Authority Citation: CAP 393 Annex A, Personnel Records What to Keep:
• Copy of A2 CofC certificate (front/back)
• Flyer ID confirmation (if recorded)
• GVC certificate (if applicable)
• Medical clearance (if required for operation type)
• Training/currency records (optional, but recommended)

Storage Requirements:
• Digital scans acceptable (PDF)
• Original must be available for inspection
• Expiration tracking system required

Insurance Policies

Retention Period: 3 years minimum Authority Citation: Civil Liability Act 2023, Aviation Insurance Regulations What to Document:
• Full insurance certificate
• Coverage limits (public liability, property damage)
• Policy number and issuer
• Effective dates
• Exclusions/limitations
• Proof of payment (invoice/receipt)

Storage Requirements:
• Digital copy + original policy
• Proof of ongoing renewal (annual reminder required)
• Audit-ready format (PDF with dates highlighted)

Incident Reports

Retention Period: 5 years minimum (or indefinitely for serious incidents) Authority Citation: Air Accidents Investigation Branch (AAIB) regulations Required Documentation:
• All near-misses (including birdstrikes, airspace infringements)
• Any damage to aircraft
• Loss of control incidents
• Unintended landings
• Property damage
• Serious injury

Storage Requirements:
• Written report (form required by CAA)
• Witness statements (if available)
• Photos of damage (if applicable)
• Timeline of events

Germany (LBA Record Retention)

Flight Logs

Retention Period: 3 years minimum (EASA harmonized) Authority Citation: EASA Easy Access Rules (Annex), LBA regulations What to Record:
• Date, time, duration
• Airfield/location (coordinates or named area)
• Aircraft registration + serial number
• Pilot name + license number
• Weather (wind speed/direction, visibility, cloud)
• Altitude flown
• Flight type (VLOS/BVLOS/training/operational)
• Any incidents

Special German Requirements:
• Maintenance condition of aircraft documented
• Airspace approval reference (if applicable)
• Photo/data mission results (if commercial)

Storage Requirements:
• Digital preferred (but paper acceptable)
• Legibility required (LBA can request enlargement)
• Retention even if aircraft sold (3 years post-sale)
• Searchable log recommended (LBA may search by date range)

Enforcement:
• LBA inspection during operational audit
• Fine EUR 500–5,000 per missing record
• Strict enforcement post-incident (every flight from 6 months prior audited)

Maintenance Records

Retention Period: 3 years (or for duration of aircraft operation) Authority Citation: EASA Part-M equivalence (adapted for small UAS) Documentation Required:
• All scheduled maintenance (date, task, result)
• Unscheduled repairs
• Parts replacement (with part numbers, replacement dates)
• Calibration records (if sensors/camera require accuracy certification)
• Battery maintenance logs (cycles, degradation)
• Firmware updates (with version numbers)

Storage Requirements:
• Chronological order
• Technician identification
• Cost records (if contract maintenance)

Pilot Certificates

Retention Period: 5 years (duration of certificate) + 1 year after expiry Authority Citation: EASA Part-FCL (adapted), LBA regulations Records to Maintain:
• A1 Online certificate (PDF acceptable)
• A2 CofC certificate (original or certified copy)
• STS certificates (if applicable)
• Medical examination results (if required)
• Training completion evidence (optional)

Risk Assessment Records (SORA)

Retention Period: Per each operation (2–3 years typical) Authority Citation: EASA Special Operations guidelines Must Include:
• Operational risk analysis
• Mitigation measures
• Approval date
• Approving authority signature
• Operation-specific conditions

France (DGAC Record Retention)

Flight Logs

Retention Period: 3 years minimum Authority Citation: DGAC Décision d'Exécution, EASA-harmonized Content Requirements:
• Date, time, duration
• Location (airfield code or GPS coordinates)
• Aircraft registration
• Pilot license number
• Weather conditions
• Altitude flown
• Any incidents/accidents

Specific French Requirements:
• Geolocation coordinates for cross-border flights
• Tourist flight zones: Additional documentation (if applicable)
• Military/restricted airspace: Approval reference

Storage:
• Digital format preferred
• Searchable by pilot name or aircraft registration
• 3-year archival (after 3 years, deletion permitted)

Insurance Documentation

Retention Period: 3 years Authority Citation: French Insurance Code (Article L 113-2) Must Maintain:
• Policy document
• Proof of payment
• Coverage letter (from insurer)
• Renewal notices

Netherlands (ILT Record Retention)

Flight Logs

Retention Period: 3 years (EASA-harmonized) Authority Citation: ILT regulations, EASA Part-M equivalent Documentation:
• Date, time, duration
• Location
• Aircraft registration
• Pilot identification
• Weather
• Altitude
• Flight type (commercial/training/recreational)

Special Dutch Considerations:
• Water operations (coastal/canal): Additional location detail
• Airspace coordination: Reference number required
• Terminal areas (Amsterdam, Rotterdam): Special documentation

Storage:
• Digital preferred
• ILT can request real-time access (via MmowW or similar platform)

Sweden (Transportstyrelsen Record Retention)

Flight Logs

Retention Period: 3 years Authority Citation: Transportstyrelsen regulations, EASA-harmonized Requirements:
• Standard flight log elements (date, time, location, pilot, aircraft)
• Weather conditions
• Incident notes
• Altitude logged

Swedish Specifics:
• Stockholm airspace: Additional coordination notes
• Coastal operations: Geolocation emphasis
• Transportstyrelsen can audit real-time logs

Australia (CASA Record Retention)

Flight Logs

Retention Period:
• Part 101 (Recreational/Simple Commercial): 2 years minimum
• Part 102 (Remote Operator Certificate - ReOC): 7 years minimum

Authority Citation: CASR Part 101, Part 102, CASA Manual of Standards Part 101 Flight Log Content:
• Date, time, duration
• Airfield/location
• Aircraft details
• Pilot name
• Weather conditions
• Incidents (if any)

Part 102 Flight Log Content (More Detailed):
• All Part 101 elements
• Altitude profile
• Airspace used
• Payload/mission type
• Maintenance condition before flight
• Any operational deviations
• Supervisor/observer signature (if applicable)

Special Australian Considerations:
• Hot climate: Temperature impact on batteries documented (if relevant)
• Terrain variability: Altitude AGL carefully measured
• Indigenous land: Special notation if applicable
• CASA can inspect records without notice

Storage Requirements:
• Paper or digital acceptable
• Searchable by aircraft registration
• Part 102 operators: Records must be immediately available (24-hour access not acceptable)

Enforcement:
• CASA spot audits common
• Fine A$2,000–10,000 per missing record
• ReOC suspension possible for systemic non-compliance

Maintenance Records

Retention Period: 2 years (Part 101) / 7 years (Part 102) Authority Citation: CASR Part 101, CASR Part 102 Documentation:
• Pre-flight inspection checklists
• Maintenance performed (date, task, technician)
• Parts replacement
• Repair log

Incident Reports

Retention Period: 5 years minimum Authority Citation: AAIB guidelines, CASR Part 102 Required:
• All accidents, serious incidents, near-misses
• Written report (form available via CASA)
• Photographic evidence (if applicable)
• Witness statements

New Zealand (CAA Record Retention)

Flight Logs

Retention Period:
• Part 101 (Recreational): 2 years
• Part 102 (Approved Operator): Duration of approved operation + 2 years after approval ends

Authority Citation: Civil Aviation Rules Part 101, Part 102 Part 101 Content:
• Date, time, duration
• Location
• Aircraft details
• Pilot name
• Weather
• Incidents

Part 102 Content:
• All Part 101 elements (more detailed)
• Mission type/payload
• Airspace coordination references
• Maintenance status
• Supervisor identification

Storage:
• Digital or paper
• CAA can request records within 7 days
• Searchable format required

Maintenance Records

Retention Period: 2 years (Part 101) / Duration + 2 years (Part 102) Documentation:
• Inspection checklists
• Maintenance work orders
• Parts replacement history
• Battery cycle documentation

Canada (Transport Canada Record Retention)

Flight Logs

Retention Period: 2 years minimum Authority Citation: Canadian Aviation Regulations (CARs), Transport Canada guidelines Content Required:
• Date, time, duration
• Location (airfield code or GPS)
• Aircraft registration
• Pilot name/RPIC designation
• Weather conditions
• Altitude
• Any deviations/incidents

Special Canadian Considerations:
• Cross-border flights: Entry point documented
• Indigenous land: Coordination with local authorities noted
• Winter operations: Temperature/precipitation impact recorded

Storage:
• Digital or paper
• Searchable format (by date/location)
• Transport Canada can request within 14 days

Maintenance Records

Retention Period: 2 years Documentation:
• Pre-flight checks
• Maintenance performed
• Parts replaced
• Repairs and troubleshooting

Incident Reports

Retention Period: 5 years Authority Citation: Canadian Aviation Safety Board (CASB) regulations Required:
• Accident/incident report (form available)
• Evidence documentation
• Witness statements

Japan (MLIT/NAA Record Retention)

Flight Logs

Retention Period: 2 years Authority Citation: Civil Aeronautics Law, NAA regulations Content Requirements:
• Date, time, duration
• Location (airfield name + GPS coordinates)
• Aircraft registration number + pilot license number
• Weather conditions
• Altitude flown
• Flight type (commercial/training/testing)
• Incidents/deviations

Unique Japanese Requirements:
• All text in Japanese or English + Japanese translation
• Geographic coordinates must reference Japanese grid system (if applicable)
• Special areas (national parks, protected zones): Additional documentation
• Notification number (if pre-flight notification was required)

Storage Requirements:
• Digital format strongly preferred (NAA audits via digital logs)
• Cloud storage (MmowW, etc.) acceptable
• Paper backup required
• NAA can request logs within 24 hours

Enforcement:
• NAA inspection routine (annual for commercial operators)
• Fine ¥100,000–500,000 per missing record
• License suspension possible for systemic gaps

Maintenance Records

Retention Period: 2 years (matches flight logs) Authority Citation: NAA maintenance guidelines Documentation:
• Daily pre-flight inspection
• Maintenance performed (date, task, parts)
• Repairs/troubleshooting
• Modifications (if applicable)
• Battery/propeller condition

Pilot Licenses

Retention Period: 1 year after license expiration Authority Citation: NAA License Regulation Must Maintain:
• License certificate (copy)
• Renewal records (proving annual renewal)
• Medical certification (if required)
• Training completion certificates

Personal Data Protection & Retention

GDPR (UK, Germany, France, Netherlands, Sweden)

Applicability:
• All flight logs containing pilot/operator names must comply with GDPR
• Data minimization principle: Keep only names/IDs necessary for compliance
• Purpose limitation: Flight logs for regulatory compliance only (cannot use for unrelated purposes)

Retention Limit:
• 3 years for regulatory retention minimum (GDPR-compliant)
• Beyond 3 years: Legal basis must exist (e.g., incident investigation ongoing)
• Right to erasure: After 3 years + GDPR rules, pilots can request deletion (if not legally needed)

Data Protection Requirements:
• Encryption at rest (password-protected Excel/PDF)
• Access controls (only authorized personnel)
• Breach notification (72-hour rule to DPA if pilot data exposed)

Australian Privacy Act & Privacy Act Principles

Applicability:
• Flight logs treated as personal information (pilot names, license numbers)
• APPs (Australian Privacy Principles) govern collection, storage, disclosure

Retention Rules:
• Not kept longer than necessary (2–7 years per operation type)
• Secure destruction after retention period
• Right of access: Pilot can request their records

Specific Requirements:
• Storage security (encrypted)
• Breach notification (OAIC within 30 days if serious breach)
• Consent required if sharing with third parties

New Zealand Privacy Act

Applicability:
• Flight logs treated as personal information
• Privacy Principles govern handling

Retention:
• 2–3 years typical
• Secure destruction after period
• Right of access maintained

Canada PIPEDA (Personal Information Protection and Electronic Documents Act)

Applicability:
• Flight logs with pilot names are personal information
• PIPEDA principles apply

Retention:
• 2 years minimum (regulatory)
• Destruction after period required
• Security measures mandatory

Japan APPI (Act on Protection of Personal Information)

Applicability:
• Flight logs with pilot names require APPI compliance
• Recent 2022 reforms increased requirements

Retention:
• 2 years minimum
• Anonymization after 2 years (if further retention needed)
• Data breach notification required (if serious)

Record Storage: Physical vs Digital

Paper Records

Pros:
• Immune to cyber-attack
• Acceptable to all authorities
• Long-term durability (acid-free paper lasts 100+ years)

Cons:
• Hard to search (audit takes longer)
• Space requirements (10+ pilots = multiple filing cabinets)
• Fire/flood risk
• Difficult to share with team

Best Practice:
• Keep paper backup for critical records (A2 CofC, insurance, incident reports)
• Digitize everything else (flight logs, maintenance)

Digital Records

Storage Options:
• Cloud storage: MmowW, Google Drive, Microsoft OneDrive, Dropbox
• On-premise: Company server, USB drive
• Hybrid: Cloud primary + local backup

Encryption Requirements (GDPR-sensitive):
• At-rest encryption: AES-256 minimum
• In-transit encryption: TLS 1.2+
• Acceptable: MmowW (end-to-end encryption), Google Drive, Microsoft OneDrive all meet standard

Backup Strategy:
• 3-2-1 rule: 3 copies, 2 different media types, 1 off-site
• Example: Original cloud + local USB + cloud backup service
• Test restoration annually

Audit-Ready Record Organization

MmowW Approach (Recommended)

Auto-Generated Audit Trail:
• All records timestamped and versioned
• Automatic backup (daily)
• One-click PDF export (includes all records with dates highlighted)
• Search by pilot/aircraft/date range
• Non-editable log (prevents tampering)

Audit Export Contains:
• Flight logs (past 7 years, but retention periods highlighted)
• Maintenance records (with dates color-coded: green = current, yellow = expiring, red = overdue)
• Pilot certificates (with expiration status)
• Insurance (with renewal dates)
• Incidents (with timeline)
• Regulatory compliance checklist (auto-scored)

Common Retention Mistakes

Mistake 1: Deleting Records Too Early

Scenario:
• Operator keeps flight logs for 18 months (savings: disc space)
• CASA audit arrives asking for past 2 years
• Logs missing for 6-month period
• Fine: A$5,000–10,000

Mistake 2: No Backup System

Scenario:
• All flight logs in spreadsheet on personal laptop
• Laptop dies/stolen
• All 2 years of records lost
• Audit: "Demonstrate your flight history"
• Fine: £5,000 (UK) for inability to produce records

Mistake 3: Mixing Personal/Professional Records

Scenario:
• Operator keeps all records in shared Google Drive (Dropbox folder, email attachments)
• Personal files mixed with compliance records
• Audit: "Which records are official? Who had access?"
• Compliance questioned due to unclear chain of custody

Mistake 4: Undocumented Maintenance

Scenario:
• Pilot does pre-flight inspection (no checklist filled)
• Pilot performs minor repair (no work order)
• Audit: "When was the last maintenance?"
• No records = auditor assumes lack of maintenance = unsafe
• Compliance failing

Mistake 5: GDPR Violation (EU/UK)

Scenario:
• Operator keeps flight logs with full pilot names for 7 years
• Pilot requests deletion after 3 years (GDPR right to erasure)
• Operator refuses (claims regulatory retention)
• Data privacy regulator audit: Fine EUR 10,000+ (France CNIL)

Retention Checklist by Country

United Kingdom

• [ ] Flight logs: 2 years
• [ ] Maintenance: 2 years
• [ ] Certificates: Duration + 1 year
• [ ] Insurance: 3 years
• [ ] Incidents: 5 years
• [ ] GDPR: Names anonymized after 3 years
• [ ] Storage: Digital or paper, searchable format

Germany / EU (EASA)

• [ ] Flight logs: 3 years
• [ ] Maintenance: 3 years
• [ ] Certificates: Duration + 1 year
• [ ] Insurance: 3 years
• [ ] SORA/Risk: Per operation
• [ ] Incidents: 5 years
• [ ] GDPR: Names anonymized after 3 years
• [ ] Storage: Digital preferred, LBA audit access

Australia

• [ ] Part 101 logs: 2 years
• [ ] Part 102 logs: 7 years
• [ ] Maintenance: 2–7 years
• [ ] Incidents: 5 years
• [ ] Privacy Act: Secure storage, breach notification
• [ ] CASA: Records immediately available

New Zealand

• [ ] Part 101 logs: 2 years
• [ ] Part 102 logs: Duration + 2 years
• [ ] Maintenance: 2 years (Part 101) / Duration + 2 (Part 102)
• [ ] Incidents: 5 years
• [ ] Privacy Act: Access rights maintained

Canada

• [ ] Flight logs: 2 years
• [ ] Maintenance: 2 years
• [ ] Incidents: 5 years
• [ ] PIPEDA: Security, breach notification
• [ ] Transport Canada: 14-day access requirement

Japan

• [ ] Flight logs: 2 years
• [ ] Maintenance: 2 years
• [ ] Pilot licenses: 1 year after expiry
• [ ] Incidents: 5 years (if serious)
• [ ] APPI: Breach notification required
• [ ] NAA: 24-hour audit access

How MmowW Handles Record Retention

Auto-Retention Management

Timeline Feature:
• Flight log added → Auto-marked with retention deadline (2–7 years per country)
• Dashboard shows: "Record expires 2026-04-10" (3 years from entry)
• Auto-reminder at 30-day mark: "Consider archiving logs older than 3 years"
• Archive function: Move records to archive (searchable, but separate from active logs)

Digital Storage Compliance

Encryption:
• All records encrypted at rest (AES-256)
• All records encrypted in transit (TLS 1.2+)
• Backup encrypted (daily backup, geographically distributed)

Audit Trail:
• Every access to record logged (who, when, what)
• Non-editable logs (all edits create version history, not overwrites)
• Export timestamp preserved (if auditor requests)

Compliance Export

One-Click Audit PDF:
• Includes all records with retention-period highlights
• Green: Records within retention period
• Yellow: Records approaching deletion date
• Compliance checklist per country (auto-scored)

Key Takeaways

1. Retention periods vary: 2 years (UK, AU Part 101, CA, JP) to 7 years (AU ReOC)

1. GDPR adds complexity: EU/UK operators must anonymize names after 3 years (if not legally needed)

1. Audit-ready format critical: Records must be searchable + retrievable within 24 hours

1. Digital storage preferred: Cloud-based platforms (MmowW) offer backup + encryption + searchability

1. One mistake = large fine: Missing record = EUR 1,000–10,000 fine depending on country

1. MmowW auto-manages: Retention dates auto-calculated per country, archives triggered automatically, audit PDF one-click
MmowW Integration: All flight logs auto-marked with retention deadline per country. Archive function auto-triggers at expiration. Compliance checklist auto-validates record completeness. Audit PDF includes retention-period verification. Encryption at rest + in transit + backup.