Workaround to get AirPort Utility v5.6.1 working under OS X 10.9 Mavericks. The issue with AirPort Utility v5.6.1 under OS X 10.9 Mavericks is that a system file upon which AirPort Utility relies was updated in 10.9 and that update broke backwards compatibility with AirPort Utility v5.6.1. The file in question is Apple80211 in /System/Library/PrivateFrameworks/Apple80211.framework/Versions/A. Replacing this file with the older version allows AirPort Utility v5.6.1 to be run under 10.9, but only via Terminal (i.e., double-clicking it will not launch it, it will throw an error).

However, there is a way to get around this issue by importing the older library into AirPort Utility v5.6.1 before running it. That is what this solution, downloadable, infra, does.

Usage Notes: I have not signed this application (i.e., AirPort Utility v5.6.1 Launcher.app) as an “identified developer”. Consequently, you will almost certainly receive a prompt when running the application (at least the first time). You can bypass having to go into System Preferences, detailed infra, by simply right-clicking (or control-clicking) on the Launcher and then clicking “Open” from the pop-up menu instead of double-clicking to open it.

Requirements:
OS X 10.9
Intel Required