Where can you find the location of the PAPI on the runway?

The location of the PAPI (Precision Approach Path Indicator) lights is indicated on the airport diagram found on the approach plate. These diagrams provide a detailed overview of the airport layout, including runway configurations, taxiways, and lighting installations such as the PAPI. A pilot can refer to these diagrams to ensure they are aware of critical visual aids that assist in maintaining the correct approach slope.

The airport diagram is crucial because it reflects accurate and current information about the airport's physical layout and aids in situational awareness during approach and landing phases. The other options, while important for various aspects of flight operations, do not directly provide the specific location of the PAPI on the runway. For example, runway markings detail runway boundaries and hold short lines, control tower instructions may provide operational guidance but not specific layout information, and the flight management system is mainly used for navigation and route management, not for runway light placements.