and Hikōtai (flights). As at mid-2012, the structure of the JMSDF's aviation units was as follows: Fleet Air Force (Atsugi Air Base) Fleet Air Wing 1 (Kanoya Air Field) Air Patrol Squadron 1 (P-3C Orion, Kawasaki P-1) Maintenance and Supply Squadron 1 Air Station Squadron Kanoya Fleet Air Wing 2 (Hachinohe Air Base) Air Patrol Squadron 2 (P-3C Orion) Maintenance and Supply Squadron 2 Air Station Squadron Hachinohe Fleet Air Wing 4 (Atsugi Air Base) Air Patrol Squadron 3 (Kawasaki P-1) Maintenance and Supply Squadron 4 Air Station Squadron Atsugi Air Station Iwoto Auxiliary Air Facility Minamitorishima Fleet Air Wing 5 (Naha Air Base) Air Patrol Squadron 5 (P-3C Orion) Maintenance and Supply Squadron 5 Air Station Squadron Naha Fleet Air Wing 21 (Tateyama Air Base) Air ASW Helicopter Squadron 21 (JMSDF Tateyama Air Base SH-60J/K) Air ASW Helicopter Squadron 23 (JMSDF Maizuru Helipoat SH-60J/K) Air ASW Helicopter Squadron 25 (JMSDF Ōminato Base SH-60J/K) Helicopter Rescue Squadron 73 (Tateyama Air Base UH-60J) Helicopter Rescue Detachment Ominato Helicopter Rescue Detachment Iwoto Maintenance and Supply Squadron 21 Air Station Squadron Tateyama Fleet Air Wing 22 (Omura Air Base) Air ASW Helicopter Squadron 22 (Omura Air Base SH-60J/K) Air ASW Helicopter Squadron 24 (Komatsushima Air Base SH-60J/K) Air Rescue Helicopter Squadron 72 (Omura Air Base UH-60J) Helicopter Rescue Detachment Kanoya Helicopter Rescue Detachment Tokushima Maintenance and Supply Squadron 22 Air Station Squadron Omura Fleet Air Wing 31 (Iwakuni Air Base) Air Rescue Squadron 71 (Atsugi Air Base US-1A, US-2) Air Reconnaissance Squadron 81 (Iwakuni Air Base EP-3, OP-3C) Air Training Support Squadron 91 (Iwakuni Air Base UP-3D, U-36A) Maintenance and Supply Squadron 31 Drone Maintenance Squadron Air Station Squadron Iwakuni Air Development Squadron 51 (Atsugi Air Base) Air Transport Squadron 61 (Atsugi Air Base C-130R, LC-90) Mine Countermeasures Helicopter Squadron 111 (Iwakuni Air Base MCH-101) Air Repair Squadron 1 (Kanoya Air Field) Air Repair Squadron 2 (Hachinohe Air Base) Air Control Service Group (Atsugi Air Base) Mobile Construction Group (Hachinohe Air Base) Units attached to Naval District destroyer fleets Kure District Fleet Komatsushima Air Squadron (SH-60J, Komatsushima Heliport) Ōminato District Fleet Ōminato Air Squadron (SH-60J, Ōminato Air Field) Ōminato Flight (UH-60J) Sasebo District Fleet Ōmura Air Squadron (SH-60J, Ōmura Air Base) Yokosuka District Fleet Shirase Flight (SH-60J, Tateyama Air Base) Air Training Command Shimofusa Air Training Group (Shimofusa Air Base) 203 Air Training Squadron (P-3C) 205 Air Training Squadron (no aircraft) Tokushima Air