Final answer:
For a 27-year-old holder of a Category 1 medical, an ECG is generally required every 5 years, Audiogram upon initial examination or if medically indicated, and the medical certificate must be renewed annually.
Step-by-step explanation:
The Category 1 medical certificate is a requirement for pilots operating under certain regulations. The renewal requirements for a holder at the age of 27 years can be outlined as follows:
- For an ECG (Electrocardiogram), pilots under the age of 40 are generally required to have it done initially and then every 5 years. However, specific requirements can vary based on aviation authorities. For example, the FAA may have different regulations compared to EASA or other local aviation bodies.
- The Audiogram is typically required once on the initial examination, and then it may be repeated if there is a medical indication or if the aviation authority mandates it at a certain age or interval.
- The medical certificate itself must be renewed every 12 months for those under the age of 40. After reaching the age of 40, the renewal period typically shortens depending on the regulations.
It's important to check with the relevant aviation authority for the most accurate and current regulations as these can vary by country and over time.