The list of Area 1 obstacles (whose height above the ground is 100m or higher, affecting air navigation) within the entire territory of EISN FIR is recorded in the ENR 5.4 Air navigation obstacles database, which is electronically available:
Version: ENR 5.4 AIRAC Amendment 004/2026 Effective 16 APR 2026
Note: A list of Safety Significant Obstacles is available on the following link
Version: Safety Significant Obstacles AIRAC Amendment 004/2026 Effective 16 APR 2026