N197BH

Part: COMPRESSOR — FAILED (AIR CONDITIONER)

TEN MINUTES INTO FLIGHT, PILOT NOTICED THAT THE AIR CONDITIONER STOPPED WORKING AND SHORTLY NOTICED SMOKE IN COCKPIT. TURNED OFF THE A/C AND THE SMOKE WENT AWAY. RETURNED TO BASE. ON EXAMINATION BY THE MX, IT WAS DETERMINED THE AC COMPRESSOR HAD FAILED INTERNALLY. AFTER REPLACING THE COMPRESSOR, THE AC OPERATED NORMALLY AND NO SMOKE WAS OBSERVED IN THE COCKPIT.

Part: BRUSHES — ARCED (STARTER GEN)

(10) MINUTES INTO A TOUR FLIGHT, THE PILOT NOTICED LOW VOLTAGE AND LOW FUEL PRESSURE, WITH NO (GEN) LIGHT ILLUMINATED. THE PILOT RETURNED TO THE HELIPORT. UPON INSPECTION, IT WAS FOUND THAT THE STARTER GENERATOR HAD A BURNING SMELL TO IT. THE STARTER GENERATOR WAS CHANGED AND THE AIRCRAFT OPERATED NORMALLY. IT APPEARS AT LEAST ONE SET OF BRUSHES WERE ARCING. (K)

Part: FLOAT — DEPLOYED

WHILE DOING A PHOTO CHARTER, THE PILOT PRESSED THE ARM PUSHBUTTON TO ARM THE FLOAT SYSTEM AND THE FLOATS DEPLOYED. THE PILOT RETURNED TO THE HELIPORT. THE PILOT CLAIMS THE FLOAT FIRING PUSHBUTTON WAS IN THE REST POSITION, (NOT PUSHED IN). UPON INSPECTION OF THE SYSTEM, THERE WERE NO DISCREPANCIES FOUND. THE SYSTEM TESTED NORMAL, NO POWER TO THE CONNECTOR PLUGS WHEN THE ARM BUTTON IS PRESSED, ALL (4) CIRCUITS WORKING WHEN THE FIRE BUTTON IS PUSHED. (K)

Part: SENSOR — MALFUNCTIONED (TACH)

DURING A TOUR FLIGHT, THE HIGH RPM HORN CAME ON (INTERMITTENLY) IN FLIGHT WITH THE ROTOR RPM IN THE GREEN. AFTER LANDING BACK AT HOME BASE, MAINTENANCE TROUBLESHOT THE INTERMITTENT PROBLEM. AFTER REPLACING THE ROTOR TACHOMETER TRANSDUCER, THE PROBLEM DID NOT REOCCUR. (K)

Part: RELAY — FAILED (MASTER ELEC BOX)

WHILE ON ROUTINE SIGHTSEEING TRIP, THE PILOT EXPERIENCED A FLICKERING GENERATOR FAILURE WARNING LIGHT WHILE TAKING OFF FROM THE AIRPORT. CONTINUED FLIGHT UNTIL RECEIVED A STEADY GENERATOR FAILURE WARNING LIGHT. RETURN TOT AIRPORT. UPON INSPECTION BY MAINTENANCE PERSONNEL IT WAS DETERMINED THAT THERE WAS A FAILURE OF THE REX-K1 GENERATION EXCITATION RELAY LOCATED IN THE MASTER ELECTRICAL BOX. THE RELAY AND THE BATTERY WERE REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE. NO RECOMMENDATIONS TO PREVENT RECURRENCE OF THIS RELAY FAILURE.

Part: ROD — WORN (PITCH CONTROL) · airframe 5,224 hrs

PART IS WORN BEYOND LIMITS.

Part: ROD — WORN (PITCH CONTROL) · airframe 4,473 hrs

PART IS WORN BEYOND LIMITS.PLEASE REPLACE BEARINGS UNDER WARRANTY.

Part: ROD — WORN (PITCH CONTROL) · airframe 4,043 hrs

PART IS WORN BEYOND LIMITS.PLEASE REPLACE BEARINGS UNDER WARRANTY.

Part: ROD — WORN (PITCH CONTROL) · airframe 3,186 hrs

PART IS WORN BEYOND LIMITS. TIME ON PART IS UNKNOWN.

Part: BEARING — WORN (PITCH ROD)

PITCH CONTROL WORN BEYOND LIMITS. TIME ON PART IS UNKNOWN.

Part: BEARING — DAMAGED (TAIL ROTOR)

BEARING IS DISTORTED, OUT OF LIMITS. (X)

Part: BEARING — CRACKED (TAIL ROTOR)

TAIL ROTOR BEARING CRACKED BEYOND LIMITS.