The Federal Aviation Administration (FAA) has taken significant action by grounding more than 800 aircraft associated with Southern Aircraft Consultancy Inc. (SACI) due to invalid registrations. This decision follows concerns regarding violations and is reportedly linked to a tragic illegal charter incident. The FAA has formally notified SACI to surrender all aircraft registration certificates, which affects a substantial number of aircraft previously registered under this UK-based consultancy. Additionally, operations for air search missions using these aircraft have been temporarily halted pending resolution of the registration issues.