The FAA is sending an emergency airworthiness directive (AD),
2006-06-51, to all owners and operators of certain General Electric
Company Aircraft Engines (GEAE) CT7-8A turboshaft engines installed
on Sikorsky S92 helicopters.
Over the last year, the FAA has been investigating aircraft
leases between air charter operators and aircraft owners, the use
of alternate business names, and operational control systems.