- The report detailed 1,100 infringement events in 2025.
- Poor pre-flight planning contributed to many vertical errors.
- Local flights near controlled airspace showed high risk periods.
- Altimetry mistakes arose from pressure changes.
- Weather deviations led to increased cockpit workload.
England’s Civil Aviation Agency has released its latest airspace infringement report that pilots in Ireland have reviewed closely. Over 1,100 infringement events took place in 2025 according to CAP3277. Poor planning, discipline, and situational awareness caused most of these events.
Pilots relied heavily on VFR moving map tools for pre-flight preparation. Vertical infringements happened when aircraft flew at incorrect levels in stepped airspace structures around Dublin, Cork, and Shannon. Local flights near controlled airspace saw many incidents during climb-out phases.
Altimetry errors continued due to incorrect QNH settings amid changing weather systems. Pilots deviated around forecast weather and increased workload. Instructors noted that instructional flights required the same planning rigour as cross-country routes.



