Final answer:
During a pre-takeoff contamination check from the cabin, the pilot inspects visible aircraft surfaces for contaminants. This visual check is part of a detailed checklist process that ensures the aircraft's safety and functionality before taking off.
Step-by-step explanation:
During a pre-takeoff contamination check performed from the passenger cabin, the pilot would inspect the aircraft surfaces that are visible from the cabin's windows. This typically includes checking the wings, flaps, and fuselage for any signs of ice, snow, or other contaminants that may have adhered to the surfaces, which could affect the aircraft's performance. The pilot would visually scan these surfaces to ensure that they are clean and free of any substances that could impede their functionality.
This process is an essential part of the detailed checklist that pilots must go through before takeoff to ensure the aircraft is in optimal condition, similar to how astronauts go through pre-flight checklists or how medical facilities use the WHO's surgical safety checklist to ensure the safety and functionality of their operations.