N721PH

Part: FADEC — FALSE ACTIVATION · airframe 6,823 hrs

WHILE IN CRUISE FLIGHT RETURNING TO BASE, 122 KIAS, 84.6 TQ, THE FADEC FAIL WARNING HORN AND LIGHT CAME ON ALONG WITH NO AUTO-START AND ONE OTHER LIGHT. THE ROTOR DROOPED TO ABOUT 94 BEFORE IDENTIFIED AS A TRUE FADEC FAIL TO MANUAL AND ADJUSTED COLLECTIVE TO MAINTAIN ROTOR RPM. PRESSED FADEC AUTO/MAN BUTTON, CONTINUED TO FLY AND LANDED SAFELY AT ELLINGTON FIELD.

Part: FUEL FILTER — UNKNOWN · airframe 5,074 hrs

FUEL FILTER LIGHT ILLUMINATED IN FLIGHT. LANDED AT NEXT MOST PRACTICAL LANDING AREA. MAINTENANCE REPLACED FUEL FILTER ASSY.

Part: BATTERY — BURNED (MASTER) · airframe 3,813 hrs

BATTERY CELL BURNED ON CHARGE. REPLACED WITH SERVICEABLE PART.

Part: TRUNNION — WORN (TAIL ROTOR) · airframe 3,779 hrs

TAIL ROTOR TRUNNION HAS EXCESSIVE WEAR ON BEARING SPINDLES. TO BE SENT TO MFG.

Part: DOUBLER — CRACKED (FUSELAGE) · airframe 3,460 hrs

FUSELAGE DOUBLER IS CRACKED.

Part: ANGLE — CRACKED (FUSELAGE) · airframe 3,460 hrs

FUSELAGE ANGLE IS CRACKED.

Part: UNIVERSAL — WORN (MAIN ROTOR) · airframe 3,498 hrs

UNIVERSAL HAS BEARING WEAR.

Part: UNIVERSAL — WORN (MAIN ROTOR) · airframe 3,276 hrs

MAIN ROTOR HEAD UNIVERSAL BUSHING WORN.

Part: BUSHING — WORN (MAIN ROTOR) · airframe 3,142 hrs

MAIN ROTOR BUSHING SET WORN.

Part: GPS — INOPERATIVE (COCKPIT) · airframe 3,184 hrs

GPS RECEIVER HAS NO DISPLAY.

Part: TUBE — WORN (MAIN ROTOR) · airframe 3,165 hrs

MAIN ROTOR TUBE HAS WORN SPOTS.

Part: TUBE — WORN (MAIN ROTOR) · airframe 3,165 hrs

MAIN ROTOR TUBE HAS WORN SPOTS.

Part: GEARBOX — MAKING METAL (MAIN ROTOR) · airframe 3,165 hrs

CHIP LIGHT. 3 FLAKES IN LOWER PLUG. CHIP LIGHT DURING PENALTY RUN. FLAKES AND BRASS IN FILTER.

Part: BRUSHES — WORN (STARTER GEN)

FOUND WORN BRUSHES ON 300 HOUR INSPECTION.

Part: FLOAT — LEAKING (MLG) · airframe 3,067 hrs

EMERGENCY FLOAT IS LEAKING.

Part: TRANSMISSION — CORRODED (M/R GEARBOX) · airframe 3,135 hrs

MAIN ROTOR GEARBOX TRANSMISSION HAS CORROSION ON SPLIT LINE.

Part: LINK — WORN (TAIL ROTOR) · airframe 3,025 hrs

TAIL ROTOR LINK WORN.

Part: SPRING — WORN (MAIN ROTOR) · airframe 2,952 hrs

WORN BEARINGS.

Part: TRANSMISSION — MAKING METAL (MAIN ROTOR) · airframe 2,952 hrs

MAIN ROTOR TRANSMISSION MAKING METAL.

Part: UNIVERSAL — WORN (MAIN ROTOR) · airframe 2,937 hrs

UNIVERSAL WORN.

Part: HUB — NOISY (TAIL ROTOR)

CLICKING NOISE.

Part: SOLENOID VALVE — DAMAGED (MLG FLOAT) · airframe 2,750 hrs

WOULD NOT SEAT WHEN SERVICED.

Part: PLACARD — DAMAGED (SEAT BELT) · airframe 2,745 hrs

BAD LABELS.

Part: PLACARD — DAMAGED (SEAT BELT) · airframe 2,745 hrs

BAD LABELS.

Part: PLACARD — DAMAGED (SEAT BELT) · airframe 2,745 hrs

BAD LABELS.

Part: PLACARD — DAMAGED (SEAT BELT) · airframe 2,745 hrs

BAD LABELS.

Part: INDICATOR — MALFUNCTIONED (COCKPIT)

WITH POWER ON, GAUGE INDICATES AN EXCESS OF 134.5.

Part: CELL — FAILED (BATTERY)

BURNT CELL.

Part: FLOAT BAG — LEAKING (MLG)

FLOAT BAG LEAKING.

Part: SWITCH — WORN (M/R GEARBOX)

PRESSURE SWITCH WORN.

Part: POWER SUPPLY — INOPERATIVE (COCKPIT)

POWER SUPPLY INOPERATIVE.

Part: BRUSHES — WORN (STARTER/GEN)

STARTER/GENERATOR BRUSHES WORN. INSPECTED BY ACCESSORY OVERHAUL SHOP AND FOUND BRUSHES EXCESSIVELY WORN.

Part: LINK — WORN (MAIN ROTOR)

LINK ASSEMBLY HAD WORN BEARING.

Part: PUMP — STRIPPED (M/R GEARBOX)

SPLINES TO ADAPTER SHAFT STRIPPED.

Part: LINK — WORN (TAIL ROTOR)

LINK HAD WORN BEARING.

Part: PUMP — FAILED (HYD SYSTEM)

LOSS OF HYDRAULIC PRESSURE.

Part: PRESSURE SWITCH — FAILED (M/R GEARBOX)

SWITCH WILL NOT TURN ON WITH NO PRESSURE.

Part: SPLINE ADAPTER — STRIPPED (TAIL ROTOR)

SPLINE STRIPPED.

Part: TRANSMITTER — MALFUNCTIONED (ENGINE TORQUE)

DURING START, TRANSMITTER CAUSED GAUGE TO READ FROM ZERO TO MAX INDICATION, THEN FLUCTUATES AS LONG AS 5 MINUTES. REFERENCE: DMR NR 686463.

Part: TRANSMITTER — MALFUNCTIONED (TORQUE)

INSTRUMENT CHECK LIGHT TURNED ON IN-FLIGHT. REFERENCE: DMR NR 686462.

Part: INDICATOR — INTERMITTENT (ENGINE TORQUE)

INDICATOR INTERMITTENTLY GOES INTO INITIAL TEST.

Part: SEAL — LEAKING (TRANSMISSION)

SEAL LEAKING.

Part: INDICATOR — MALFUNCTIONED (TORQUE)

DROPPED TO ZERO IN-FLIGHT. REFERENCE: DMR NR 686242.

Part: BRUSHES — WORN (STARTER/GENERATO)

STARTER/GENERATOR FAILED 300-HOUR INSPECTION.

Part: FREEWHEEL UNIT — LEAKING (MAIN ROTOR)

LEAKING FORWARD SEAL. REFERENCE: DMR NR 686304.

Part: UNIVERSAL — WORN (M/R DRIVE)

UNIVERSAL HAD WORN BEARINGS.

Part: FUSIBLE PLUG — LEAKING (FLOAT)

PLUG LEAKING.

Part: BEARING — LOOSE (BIPOD MOUNT)

BIPOD MOUNT HAS LOOSE BEARINGS.

Part: STARTER — FAILED (STARTER/GEN)

STARTER/GENERATOR WILL NOT MOTOR. INSPECTED BY ACCESSORY OVERHAUL SHOP AND FOUND TWO BRUSHES AND BRUSH BOXES BURNT. ALSO FOUND MOTOR SHORTED.

Part: BEARING — ROUGH (T/R DRIVE)

FAN SHAFT ASSEMBLY HAS ROUGH BEARINGS; COMPLY WITH ASB 407-98-23. SERIAL NUMBERS REMOVED ARE H98-0666 AND H98-0672.

Part: REGULATOR — FAILED (DC SYSTEM)

GENERATOR WILL NOT COME ON-LINE.

Part: DISK COUPLING — CRACKED (T/R DRIVE)

DISK COUPLING CRACKED ON TAIL ROTOR DRIVE.

Part: REGULATOR — FAILED (DC SYSTEM)

GENERATOR WILL NOT COME ON-LINE.

Part: DISK COUPLING — DENTED (T/R DRIVE)

DISC DENTED AT FORWARD END OF AFT SHORT SHAFT.

Part: DISK COUPLING — CRACKED (TAIL ROTOR)

DISK COUPLING CRACKED.

Part: DISK COUPLING — CRACKED (T/R DRIVE)

DISK COUPLING CRACKED.

Part: LINK ASSY — FROZEN (T/R PITCH)

LINK ASSEMBLY BEARING FROZEN.

Part: DISK PACK — CRACKED (T/R DRIVE)

CRACKED DISK, NR 7 THOMAS COUPLING.

Part: TANK — CRACKED (ENGINE OIL)

TANK ASSY CRACKED.

Part: FIREWALL — CRACKED (FUSELAGE)

FIREWALL CRACKED.

Part: DRIVE SHAFT — DAMAGED (TAIL ROTOR)

TAIL ROTOR DRIVESHAFT BEARINGS CAUSING HIGH FREQUENCY VIBRATION.

Part: ANGLE — CRACKED (FUSELAGE)

ANGLE CRACKED.

Part: CHANNEL — CRACKED (FUSELAGE)

CHANNEL CRACKED.

Part: UNIVERSAL — WORN (MAIN ROTOR)

TRUNNION BEARING HAS EXCESSIVE AXIAL PLAY.

Part: BEARING — ROUGH (TAIL ROTOR)

TAIL ROTOR HAS ROUGH BEARINGS. SERIAL NUMBERS REMOVED ARE 98-0495 AND 98-0435. REPLACEMENT PART SERIAL NUMBERS ARE 98-0637 AND 98-0665.

Part: DISK — CRACKED (TAIL ROTOR)

TWO EACH CRACKED DISKS IN TAIL ROTOR.

Part: DISK — CRACKED (TAIL ROTOR)

TWO EACH DISCS CRACKED.