Manually released files should always be owned by the PMC group (in this case incubator), and should have group-write, so the PMC can update them (not just the owner).
Please can you change the permissions? Thanks. Checking /www/www.apache.org/dist/incubator 63179813 6 drwxr-xr-x 2 steven incubator 3 Sep 5 21:31 ./cordova 63180300 14 -rw-r--r-- 1 steven incubator 6134 Sep 5 21:31 ./cordova/KEYS