Boeing KC-135 Stratotanker crash, Jun 3, 1971 (6 killed)
Boeing KC-135 Stratotanker accident on June 3, 1971 near Centenera Castile-La Mancha, Spain with 6 fatalities.
- Date: June 3, 1971
- Aircraft: Boeing KC-135 Stratotanker
- Location: Centenera Castile-La Mancha, Spain
- Fatalities: 6
- Phase of flight: Approach and landing
A USAF KC-135 returning to Torrejón after a refuelling mission vanished from radar while descending. Wreckage was found in Centenera about 35 km northeast of the base and all six crew were killed. An in-flight fuel tank explosion is considered possible but was not confirmed.