Recovery efforts began March 1 when Grasp arrived in the vicinity of the crash site to locate the wreckage, and ended March 22 when the last recoverable debris from the second aircraft was lifted onto the ship’s weather deck. Salvage operations, which could normally have been conducted within a week, were delayed by severe weather conditions that twice sent the ship back to port. The first aircraft was recovered March 12 from a depth of 177 feet and the second aircraft was recovered March 22 from a depth of 185 feet. More that half of each aircraft was salvaged including their engines, data collecting devices (flight recorders) and main computers. These items are vital to the Air Force’s investigation to determine the cause of the crash.