Rumors are currently swirling of effective Iranian control of the Yemeni Air Force (YAF), following news of Ansarullah forces besieging the residence of Yemeni defense minister as well as the the YAF headquarters in Sanaa. It is said YAF is in a state of mutiny, refusing to undertake air operations against AQAP
There are reports in Aden Post that Iranian crews and technicians have been sent to Sanaa International Airport, as effective safeguards of YAF air assets. There is even concern YAF Mikoyan MiG-29 fighters are to be sent to Iran for safekeeping, using Iranian crews.
An open source partial ORBAT for YAF can be reviewed HERE. There exists an extraordinary level of aircraft type service commonality among Iran's air force and army aviation branches, and YAF.
File photo of Yemenia Ilyushin Il-76TD transport aircraft operated by YAF crews from 115th Squadron, at Sana'a International Airport.