CORSIA Second Phase 2027: What Changes for Airlines
CORSIA moves into its second phase on 1 January 2027. What changes for airlines: coverage, baseline, Annex 16 Volume IV third edition and the annual cycle.
November 4, 2026
Aero Support Group
Aviation safety and regulatory compliance consulting
ICAO USOAP, EASA and UK CAA TCO, IOSA, ISAGO, SMS and cybersecurity support for airlines, airports, ground handlers, MROs and civil aviation authorities worldwide.
1,000+ projects · 500+ airports · 100+ countries · 30+ years
Award-winning aviation consultancy
- Most Trusted Aviation Consultancy – UK 2021 & 2024
- Best Aviation Consultancy – UK 2023
- Most Innovative Aviation Consultancy – UK 2024
- Aviation Company of the Year 2024/25
- Most Innovative Aviation Consultancy Firm 2024 (SME News)
- SME News IT Awards 2025
- Top Aviation Safety Service – UK 2025 (shortlisted)
- Best Global Aviation Compliance & Safety Consultancy 2026
Projects delivered
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Audit preparation, approvals, manuals and training
Airports served
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Ground handling, fuel, de-icing and airport operations
Countries
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Africa, Middle East, Europe, Asia and the Americas
Aviation experts
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12 nationalities, 10 languages
How we help
Eight service areas covering audits, approvals, flight operations, ground and fuel, safety, sustainability, security and documentation, built around your operation and your regulator.
01
Audit readiness
Oversight and assurance
Audit readiness
Oversight and assurance
02
Regulatory approvals
Approvals and airworthiness
Regulatory approvals
Approvals and airworthiness
03
Flight operations
AOC, crew and OCC
Flight operations
AOC, crew and OCC
04
Ground, fuel and cargo
Inspections and approvals
Ground, fuel and cargo
Inspections and approvals
05
Safety and quality
Integrated management
Safety and quality
Integrated management
06
Sustainability
Emissions and SAF
Sustainability
Emissions and SAF
07
Security and resilience
Cybersecurity and continuity
Security and resilience
Cybersecurity and continuity
08
Manuals and digital
Training and RADAR
Manuals and digital
Training and RADAR
ASG RADAR: 360° oversight. 365 days a year.
A continuous compliance subscription for IOSA, ISAGO, ICAO USOAP, EASA TCO and Part-145. We review your compliance every month, so you are ready for the auditor on any day.
Why organisations choose ASG
Experience
Practitioners first
Former airline, ground handling and authority staff who have run real operations.
- 1,000+ projects in 100+ countries
- 36+ experts, 12 nationalities
- 30+ years in aviation operations
Know-how
Standards expertise
Hands-on command of the standards your auditors and regulators will test you against.
- IOSA, ISAGO, EASA, UK CAA, ICAO
- SMS, QMS, SeMS and FRMS
- Fuel, de-icing and ground operations
Strategy
Measurable results
Evidence-based plans that close findings and keep results in place after we leave.
- Gap analysis to verified closure
- KPIs and evidence for every action
- Capacity built in your own team
What you get with Aero Support Group
- Global expertise: a network of 36+ IATA/ICAO-qualified consultants and auditors from 12 nationalities, working in 10 languages.
- Worldwide reach: 1,000+ aviation compliance projects across Africa, the Middle East, Central Asia, Europe and the Americas.
- Industry-led team: former IATA and ICAO auditors, airline safety executives and regulatory experts with 30+ years of operational experience.
- Award-winning: recognised by international awards for trust, quality and innovation.
- Tailored work: every engagement is built around your operation and your regulator.
- Remote-first delivery: most assessment work is done remotely, with on-site time kept to what the audit needs.
What our clients say
"Aero Support Group guided us through our IOSA audit preparation with exceptional professionalism. Their gap analysis was thorough, their team was highly responsive, and our first-time IOSA registration was a success."
Director of Safety
IATA Member Airline — Africa
"The Aero Support Group team demonstrated outstanding expertise in ISAGO audit preparation. Their structured approach and deep knowledge of ground handling standards helped us achieve full compliance well ahead of our audit date."
Head of Ground Operations
International Airport — Central Asia
"Working with Aero Support Group on our SMS implementation was transformative. Their consultants brought real-world operational insight and helped us build a safety culture that goes far beyond regulatory compliance."
VP Safety & Compliance
Charter Airline — Middle East
Latest insights
Anexo 19 de la OACI: gestión de la seguridad operacional y Enmienda 2
SEGURIDAD OPERACIONAL · Por Ferhan Bugay, Director Ejecutivo, Aero Support Group FZCO · 22 de octubre de 2026
October 22, 2026
IOSA ISM Edition 19: What Airlines Should Do Before 1 January 2027
IOSA AUDIT READINESS · By Ferhan Bugay, Executive Director, Aero Support Group FZCO · 21 October 2026 ·
October 21, 2026
Ready to pass your next audit?
Our team has delivered 1,000+ projects for aviation organisations worldwide, covering IOSA, ISAGO, EASA, SMS and regulatory compliance. Tell us your audit date and we will set out a plan to meet it.
Watch our explainers on YouTube
Short videos from the ASG team on IOSA, ISAGO, ICAO USOAP, EASA TCO, SMS and Part-145. Follow the channel for new episodes.
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Our weekly LinkedIn newsletter on ICAO, IATA, EASA and UK CAA changes and what they mean in operations.