TRANS AERO LLC

Operated by Trans Aero Limited (per NTSB report)

Operated by TRANS AERO LIMITED (per NTSB report)

Operated by Trans Aero, Ltd. (per NTSB report)

WHEN DOING HYDRAULICS OFF TRAINING, ON LANDING THE HYDRAULICS WERE TURNED BACK ON AND THE CYCLIC "MOTORED" TO THE LEFT.

THE FRICTION SHOE/PAD CAME UNBONDED IN FLIGHT CAUSING A "JAM" IN THE COLLECTIVE. WHEN THE PILOT LOOKED DOWN AND SAW WHAT WAS FOULING THE COLLECTIVE HE WAS ABLE TO REMOVE THE FRICTION SHOE.

AT APPROXIMATELY 10501.9 ACTT ON 9-29-22 AT 1530 PM I WAS TOLD THAT THERE HAD BEEN A HYDRAULIC SYSTEM 2 FAILURE ON N456TA. THE PILOT LANDED WITHOUT INCIDENT. AFTER SHUTDOWN I INVESTIGATED THE PROBLEM AND FOUND THAT THE #2 SYSTEM WAS ALMOST COMPLETELY EMPTY OF FLUID AND THERE WAS HYDRAULIC FLUID ALL OVER THE BELLY OF THE AIRCRAFT. AFTER REFILLING THE SYSTEM SPINNING THE BLADES AROUND THERE WAS A MAJOR LEAK ON THE #2 HYDRAULIC PRESSURE LINE TO THE SYSTEM. THE RETURN LINE DID NOT LOOK MUCH BETTER, ALTHOUGH IT WAS NOT LEAKING. WHEN THE LINES WERE REMOVED I DID NOT NOTICE THEM CHAFFING AT THAT TIME, HOWEVER THEY MIGHT HAVE SOMETIME IN THE PAST, REGARDLESS OF THE OUTER SHEATHING POSSIBLE CHAFFING, THE HOSES LOOKED AND FELT LIKE THAT HAD BECOME HARD AND BRITTLE OVER THE YEARS. MANUFACTURE DATE IS 1Q87 ON BOTH OF THE LINES THAT WERE REPLACED. QUITE A BIT OF THE DAMAGE ON THE OUTER SHEATHING ON THE PRESSURE LINE WAS CAUSED BY ME ON REMOVAL AND TRYING TO FIND THE HOLE IN IT. HOWEVER THE OUTER SHEATHING WAS ALSO FAIRLY BRITTLE, IT TORE ON BENDING THE LINE.

DURING ROTINE M/R BLADE INSTALLION, TECNICIAN FOUND LOWER SLEEVE BLADE PIN BUSH CRACKED.

MAIN ROTOR SWASHPLATE GUIDE SHEARED RIVETS AT SUPPORT BASE.

MAIN ROTOR SWASHPLATE GUIDE HAD SHEARED RIVETS AT THE SUPPORT BASE.

PILOT WAS CONDUCTING ENGINE GOVERNING FAILURE TRAINING IN AN AS350B3 W/2B ENGINE. DURING TRAINING PILOT SWITCHED GOVERNOR SWITCH FROM AUTO TO MANUAL. PILOT THEN ATTEMPTED TO ROLL TWIST GRIP TO INCREASE ENGINE SPEED. PILOT WAS NOT ABLE TO ADVANCE TWIST GRIP PAST FLIGHT POSITION. IF THIS WAS A TRUE GOVERNOR FAILURE THIS CONDITION WOULD HAVE PREVENTED THE PILOT FROM BEING ABLE TO MAINTAIN REQUIRED ROTOR RPM TO SUSTAIN FLIGHT. PILOT STOPPED TRAINING AND RETURNED HELICOPTER TO HANGER. MECHANIC INSPECTION FOUND HELICOPTER IS POST MODS 073357, 073222 & 073084. INSPECTION FOUND SEE SB 76.00.19 PAGE 16/25 ITEMS 40 LOCK FINGER, BACKED OUT OF ITEM 1 SOLENOID 3/8 OF AN INCH. THIS PREVENTED THE LOCK FINGER FROM RETRACTING ENOUGH TO CLEAR ITEM 50 CAM'S FLIGHT LIMIT STEP. MECHANIC REMOVED, CLEANED, INSPECTED, SOLENOID AND LOCK FINGER. REINSTALLED LOCK FINGER INTO SOLENOID USING LOCTITE AS A SECONDARY LOCKING MEANS. REINSTALLED ASSY AND OPS CHECKED IAW SB 76.00.19 2.B.3. CAUSE SOLENOID AND LOCK FINGER COMES PREASSEMBLE IN SB KIT. DURING ASSY. NO SECONDARY LOCKING FEATURE WAS USED TO KEEP FINGER FROM BACKING OUT.

ENGINE TORQUE AND N1 FROM 3-5% DURING APPROACH IN A HOVER AND AFTER TOUCH DOWN.

AFTER LANDING, A RED GOV LIGHT ILLUMINATED ON THE CAUTION AND WARNING PANEL INDICATING A MAJOR FADEC FAILURE.

AFTER TAKEOFF PILOT FELT AN INCREASINGLY SIGNIFICANT VIBRATION AS AIRSPEED INCREASED. PILOT RETURNED TO BASE. AVA REPLACED ON AIRCRAFT WITH NO FURTHER DEFECTS NOTED.

DURING FLIGHT RADIO FM 1 EMITTED SMOKE. THE FRONT PASSENGER WAS TRANSMITTING ON FM 1 WHEN THE PILOT HEARD EXCESSIVE STATIC THROUGH THE RADIO. THE PILOT NOTICED THE DISPLAY SCREEN OF THE RADIO FLASHING, THEN COMPLETELY DIMMING. THE PILOT TURNED THE RADIO OFF AND A FEW SECONDS LATER LIGHT SMOKE WAS COMING OUT FROM THE FRONT OF FM 1. THE PILOT TURNED OFF THE MASTER AVIONICS SWITCH AND MADE A PRECAUTIONARY LANDING AT A NEARBY GOVERNMENT FACILITY. NO MORE SMOKE WAS OBSERVED AFTER MASTER AVIONICS SWITCH WAS TURNED OFF. AFTER LANDING PILOT INSPECTED UNDERSIDE OF INSTRUMENT PANEL TO ENSURE NO FURTHER SMOKE OR SMOLDERING WAS PRESENT. ON-SITE MECHANIC WAS ABLE TO DRIVE TO AIRCRAFT AND REMOVE FM 1. AFTER INSPECTION NO DAMAGE WAS FOUND TO AIRCRAFT WIRING. RADIO FM 1 WAS REPLACED WITH SERVICEABLE UNIT.

PILOT DEPARTED AND WAS ENROUTE WHEN A BURNING ODOR BECAME EVIDENT IN THE COCKPIT AND THEN FOLLOWED BY VISIBLE SMOKE COMING FROM THE LT SIDE OF THE INSTRUMENT CENTER CONSOLE. PILOT INITIATED EMERGENCY PROCEDURES AND LANDED AT A SUITABLE LZ WITHOUT INCIDENT. UPON INVESTIGATION BY THE TECHNICIAN IT WAS DETERMINED THAT THE PULSE LIGHT POWER SUPPLY HAD A CATASTROPHIC FAILURE CAUSING THE SMOKE. THIS PULSE LIGHT WAS MOUNTED NEAR THE AVIONICS COOLING FAN WHICH WAS DRAWING THE SMOKE IN AND DIVERTING THROUGH THE RADIO STACK MOUNTED IN THE CENTER CONSOLE.