Final answer:
The pilot is responsible for determining their fitness to fly despite holding a current medical certificate.
Step-by-step explanation:
The responsible party for determining whether a pilot is fit to fly for a particular flight, despite holding a current medical certificate, is the pilot themselves. Although the Federal Aviation Administration (FAA) issues the medical certificate and the aviation medical examiner performs the examinations, it is ultimately up to the pilot to determine their own fitness to fly.
They must assess their physical and mental condition, taking into account any medications they are currently taking or any illnesses or conditions they may have. They must also ensure they adhere to the FAA's regulations and restrictions placed on their medical certificate.
While it is the pilot's responsibility, the FAA and aviation medical examiner play a crucial role in ensuring safety by issuing the medical certificate and conducting examinations to assess the pilot's fitness to fly.