Final answer:
A part number detail can be loaded under TRIC L and TRIC M, which are codes used in supply chain management for creating and modifying inventory records.
Step-by-step explanation:
The question is asking under which two Transaction Reporting and Accountability Control System (TRICs) a part number detail may be loaded. The correct answer is TRIC L and TRIC M. TRIC L is used for loading part numbers into the base supply system, while TRIC M is for modifying an existing detail record. Both of these codes are integral to supply chain management and logistics within various systems, ensuring parts are accurately tracked and inventory levels are maintained.