NOTAMs are issued to inform about outages and obstructions affecting RAWS operations.

• A. Informs pilots about future long-term scheduling.
• B. Notices to Airmen describing temporary changes or hazards; informs outages and obstructions affecting RAWS.
• C. Reports on quarterly flight times.
• D. Outlines airline route maps.

Answer: (B)

Notices to Airmen describe temporary changes or hazards that could affect air navigation services, facilities, or procedures. They provide timely, actionable information about outages and obstructions that could impact operations, including RAWS systems. That makes the stated option the best fit because it captures both the temporary, hazard-oriented nature of NOTAMs and their relevance to outages and obstructions affecting RAWS.

Other options miss the purpose: NOTAMs aren’t about future long-term scheduling, quarterly flight times, or outlining airline route maps. They’re specifically for temporary or urgent situational information that pilots and operators need to know to maintain safe and efficient operations.