What was found
(CAN) - TAILBOOM COLLAPSED AFTER LANDING. - TAIL ROTOR DRIVE DISCONNECTED, FAILING DAMAGE.- LOWER FORWARD SKIN BUCKLED AND FRACTURED BETWEEN NR 3 AND 4 BEARING. - FAILURE ANALYSIS FOUND WRONG SKIN THICKNESS.- MEASURES 0.0325 INCH, SHOULD BE 1.0MM (0.03937 INCH). - OPERATOR INSPECTED FLEET OF 6 OTHERS AND FOUND AIRCRAFT S/N 2495 ALSO HAS INCORRECT SKIN. - BOOMS ARE FACTORY ORIGINAL - NO REPAIR HISTORY. - EUROCOPTER USA ADN HAWAII FAA NOTIFIED.