/usr/share/request-tracker3.8/html/Callbacks/ is in rt3.8-rtfm 2.4.3-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/request-tracker3.8/html/Callbacks/RTFM/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Admin/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Admin/Elements/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Admin/Elements/CustomFieldTabs/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Admin/Elements/CustomFieldTabs/Default
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Admin/Elements/Tabs/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Admin/Elements/Tabs/Default
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Admin/Global/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Admin/Global/CustomFields/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Admin/Global/CustomFields/index.html/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Admin/Global/CustomFields/index.html/Default
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Admin/index.html/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Admin/index.html/Default
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Elements/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Elements/EditLinks/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Elements/EditLinks/ExtraLinkInstructions
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Elements/Header/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Elements/Header/Head
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Elements/MessageBox/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Elements/MessageBox/Default
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Elements/Tabs/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Elements/Tabs/Default
/usr/share/request-tracker3.8/html/Callbacks/RTFM/RTIR/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/RTIR/Elements/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/RTIR/Elements/Tabs/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/RTIR/Elements/Tabs/Default
/usr/share/request-tracker3.8/html/Callbacks/RTFM/SelfService/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/SelfService/Elements/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/SelfService/Elements/Tabs/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/SelfService/Elements/Tabs/Default
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Ticket/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Ticket/Create.html/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Ticket/Create.html/BeforeCreate
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Ticket/Create.html/BeforeMessageBox
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Ticket/Elements/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Ticket/Elements/Tabs/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Ticket/Elements/Tabs/Default
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Ticket/Update.html/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/Ticket/Update.html/BeforeMessageBox
/usr/share/request-tracker3.8/html/Callbacks/RTFM/autohandler/
/usr/share/request-tracker3.8/html/Callbacks/RTFM/autohandler/Default