When planning a technical report, it is important to include the report topic, report purpose, report audience, report type, and front cover. The report topic helps to define the subject matter of the report, while the report purpose clarifies the goal or objective of the report. The report audience identifies the intended readers or recipients of the report, which helps in tailoring the content and language appropriately. The report type specifies the format or structure of the report, such as whether it is a research report, feasibility study, or progress report. Lastly, the front cover provides a professional and organized presentation of the report.