Aircrew error cited in investigation Published March 1, 2004 ROYAL AIR FORCE LAKENHEATH, England (AFPN) -- An investigation here found aircrew error led to the unintentional release of an inert training munition Jan. 8 in Yorkshire.Officials from the 48th Fighter Wing said the aircrew involved in this mishap was on non-flying status while investigation took place. Subsequent to the determination of aircrew error, the crew was retrained. They have returned to flying status after satisfactorily demonstrating proficiency in actions required to safely conduct combat training.This was the first unintentional release of a training munition off-range from a wing F-15E Strike Eagle since the aircraft arrived here in 1992, officials said.“The procedures in place Jan. 8 had an extraordinary record of preventing such a mishap,” said Brig. Gen. Mark Matthews, 48th Fighter Wing commander. “Subsequent to our investigation, we’ve refined those procedures even more to preclude recurrence.”