well we have the highest computer studies achiever in Saudi Arabia in the forums .. AF .. so hopefully he'll give you some tips on revision ..
i did the project last year .. doing the AS project now and its kinda similar.
First identify a problem in the airport management system, the solution must be created using access (thats what i used) whether its computerizing the staff database, or recording incomming flights or flight booking system etc.
It's frankly easy to do really, just create the database, preform some forms, queries and reports. Design a front end using Macros, take screen shots, test your system, and your done!!
If you need any more help dont hesitate to ask
