Hey there @aashishvanand ! I looked into the airport data and noticed a few inconsistencies that I thought you might want to know about:
I found around 5 entries that don't have the country code in the 2-digit ISO format. Don't worry though, you can easily search for them using regex "country_code"\s*:\s*"[^"]*airport[^"]*" in VS Code.
I also noticed that there are 23 entries without a city name.
Finally, there are 87 entries without a country name assigned. I hope this information helps you out!