What type of report must be made for any occurrence involving air traffic services where collection of associated safety-related data and conditions is mandatory?

• A. Minimum Delay Report
• B. Unsatisfactory Report
• C. Mandatory Occurrence Report
• D. Comprehensive Electronic Data Analysis

Answer: (C)

This item tests understanding of when formal safety reporting is required in air traffic services. When an occurrence involves air traffic services and there is a mandate to collect safety-related data and conditions, the required report is the Mandatory Occurrence Report. It’s designed to ensure all relevant safety data from the event are documented for investigation and safety analysis, helping to identify risks and prevent recurrences. The other options don’t fit this purpose: a Minimum Delay Report deals with delays rather than safety data collection; an Unsatisfactory Report isn’t the standard report for mandatory safety occurrences; Comprehensive Electronic Data Analysis describes a data-analysis activity, not a specific report type.