You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "what does code 11 mean in an airport?" whose answer is Late check-in.
Each document should contain about 30 words, and these documents should contain useful information.

Query: code 11 in airport
Useful Output:

Doc 1: This web site has been setup to help you cut through the jungle of all those codes and abbreviations used in and around the Airline Industry.
Doc 2: 11, Hong Kong International Airport, Hong Kong, HKG. 12, Adolfo  Looking for the IATA code of a specific airport or airline not listed above?
Doc 3: So apparently the #Lihue airport has so many #COFFEE spills they need a code system. Code 11 for all of you code breakers out there.
Doc 4: World Airport Codes ; AKB, Atka, AK: Atka Airport ; AKC, Akron, OH: Akron Fulton International ; AKF, Kufrah, Libya: Kufra ; AKH, Al Kharj, Saudi
Doc 5: Glossary of Megahub Airport Codes​​ A table with flight data for the top 20 country markets.