Orffen [1] filed a deletion request for ttf-aileron [2]:

This font is actually OTF format and I'd like to resubmit with the name "otf-aileron" rather than "ttf-aileron". Newbie packaging mistake :)

[1] https://aur.archlinux.org/account/Orffen/ [2] https://aur.archlinux.org/pkgbase/ttf-aileron/