When must a commercial pilot have an audiogram?

A commercial pilot must have an audiogram at the first Category 1 medical examination and then again at the first examination after turning 55. This requirement is in place because hearing ability is critical for safety in aviation, as it affects a pilot's ability to communicate effectively, especially in noisy environments like an aircraft cockpit.

The audiogram tests the pilot's hearing capabilities, ensuring they can adequately perceive and respond to auditory signals, which is vital for operational safety and situational awareness. This regulation reflects the understanding that as pilots age, there may be alterations in auditory function that could impair their ability to safely operate an aircraft.

The first audiogram at the Category 1 medical ensures that any hearing impairments are identified early in a pilot's career, while the follow-up requirement after age 55 takes into account the natural aging process that can affect hearing. This proactive approach helps to maintain safety standards in aviation.