Aeronautical study for Eskişehir-Odunpazarı

The International Civil Aviation Organization (ICAO) regulations defined in Annex 14 specify airspace around aerodromes to be maintained free from obstacles. For that purpose, virtual surfaces called “Obstacle Limitation Surface” (OLS) are described, which ideally shall not be penetrated by an object. Nevertheless – according to ICAO, EASA and many states – penetrations may be acceptable if an “aeronautical study” demonstrates that the object or obstacle has no adverse impact on the safety or regularity of flight operations. This process generally requires a specialised third-party – as Segar Engineering & Aviation – to develop the aeronautical study, which shall be later submitted and reviewed by the responsible aviation authority.

There were inconsistencies between the maximum heights determined according to the Eskişehir Airport Square Obstacle Plan and the development plans within the municipality boundaries.

As Segar Engineering & Aviation; We prepared the Building Restricted Area (BRA) for Incirlik Square Navigation Devices according to ICAO EUR DOC 015 criteria, determining the planned areas to be affected by the published Eskisehir Airport Square Mansard Plan (OLS) according to ICAO ANNEX-14.

Based on the ICAO PANS-OPS DOC 8168 criteria, we have performed simulation studies for the remaining parts of the S / S Devices BRA according to the ICAO EUR DOC 015 criteria, determining the areas affected by the Incirlik Square Tool Lowering / Climbing and Abandonment Plans.

ICAO PANS-OPS DOC 8168 criteria, and provided detailed alternatives in terms of Tool Lowering / Climbing and Abandonment Plans.
As a result of the work we have conducted, we have determined the criteria that the planned areas violate and we have determined Risk Assessment and Risk Mitigation Measures and Procedures according to Annex-7 of the "Civil Aviation General Directorate's Instruction for Implementation of Safety Management System at Airports (SHT-SMS / HAD)" Annex-7.

The report has been approved by Turkish Air Force.