Board Thread:Game Updates/@comment-3502824-20171207155334/@comment-32647310-20180114160928

FogRepairShipAkashi wrote: Won't let me, just has 12.5 cm, 14 cm guns and torp tubes no option for seaplane fighters. What you can work on and when is dependant both on who your Assistant ship is and the day of the week.

If you are using a viewer like KC3-Kai, bring up the Strategy Room page and click the 'Akashi' button, that should let you know what things you can work on (if it's red, it's either not the right day or you don't have the ship).

If you can read Japanese, this link is also useful: http://akashi-list.me/

...even if you cannot read Japanese, you can still get an idea of what is available for crafting/upgrading today (note, it's Monday in Japan right now, so...)

I would suggest looking over the Akashi page on this website... a lot of questions can be answered by reading over that page.