An MQ-1B Predator that crashed Jan. 17 in Southwest Asia suffered engine failure stemming from a crack in the crankshaft, according to a summary of an Air Combat Command Accident Investigation Board report. The aircraft was destroyed upon impact. The crankshaft crack caused a connecting rod to fail, wedging itself in the opposing cylinder. A recent report indicates, though, that an increasing number of unmanned aerial vehicle crashes can be attributed to operator error.
Air Force Secretary Frank Kendall, on the verge of leaving the Pentagon, said he would accelerate production of the B-21 bomber if there was money to do so. But even so, it couldn’t happen right away, he said in an interview with Air & Space Forces Magazine.