What is the Minimum Obstruction Clearance Altitude (MOCA) between JC and MANCA intersection on V187?

The Minimum Obstruction Clearance Altitude (MOCA) is designed to provide a safe vertical clearance over obstacles within a defined area along a route. It ensures that aircraft can safely navigate without the risk of colliding with terrain or structures when flying under IFR, especially in mountainous or high-density obstruction areas.

For the route segment between JC and MANCA intersection on V187, the correct MOCA of 12,400 ft MSL indicates that this altitude has been calculated to provide adequate clearance over all identified obstructions in the vicinity and maintain a safe margin from the terrain. The MOCA is established based on the highest obstacle within the specified distance from the route, taking into account a buffer for safe clearance.

In contrast, altitudes lower than 12,400 ft MSL would not provide the safety margin required, potentially exposing aircraft to risks from obstructions. Higher altitudes, such as 15,000 ft MSL, while they would clear obstacles, may not be necessary and could unnecessarily restrict operational flexibility and efficiency by requiring pilots to climb more than needed for safety.

Therefore, the MOCA of 12,400 ft MSL is the most appropriate and justified choice for ensuring safety between the specified intersections on V187.