Final answer:
It is true that the crew chief must obtain permission from the ECS before placing the LS in remote, as this is a standard safety protocol within aerospace or military operations to ensure system readiness and safety.
Step-by-step explanation:
The statement that the crew chief must receive permission from the ECS before placing the LS (Launch Sequence/Support systems) in remote, is true. In engineering practices, especially in aerospace and military settings, ECS stands for Environmental Control System, which is critical for ensuring the safety and proper environmental conditions for equipment and personnel.
The procedure typically requires a series of checks and balances, including obtaining clearances from various control authorities such as the ECS, to ensure that all systems are functioning correctly before any remote operations are initiated. Adherence to protocol is crucial to prevent mishaps and ensure the safety and success of operations involving sensitive and potentially dangerous systems.