The aircraft, belonging to 18th Wing, Kadena Airbase (DNA/RODN), suffered a hydraulic problem while a training over the Sea of Japan, and made an emergency landing at Komatsu Airbase / Airport. That reported by aviation-safety.net.
The F-15 stopped on the runway, and the runway was closed for a half hour before the plane towed away, causing two commercial flights to be delayed for 35 minutes maximum. No injuries were reported. USAF and Japan Air Self-Defence Force have been performing a combined exercise from the day before.
On the day of the incident, Four F-15’s of United States Air Force (USAF) and four F-15’s of Japan Air Self-Defense Force (JASDF) were maneuvering in the training area over the Sea of Japan from 8 A.M.