N447PH
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| PHI AVIATION, LLC (HEEA) | Certificate holder | — | Matched by certificate designator |
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
ENGINE REMOVED FOR NR 5 BEARING UPGRADE. NR 5 BEARING SPALLED ON OUTER RACE AT SPLIT. REPLACED THE BEARING.
ENGINE REMOVED 11-8-14 DUE TO METAL IN OIL. TURBINE NR 5 BEARING BALLS AND SEPERATOR SPALLING. INSTALLED NEW NR 5 BEARING. PART WILL BE SUBMITTED TO MFG FOR FURTHER EVALUATION.
CHANNEL IS CRACKED BEYOND REPAIRABLE LIMITS. REPLACED WITH NEW PART.
LANDED ACFT ON PLATFORM AND PASSENGER NOTICED OIL LEAK. TRANSMISSION LOW PRESSURE CAUTION LIGHT ILLUMINATED DURING ROUTINE 2 MINUTE ENG COOL DOWN. PILOT IMMEDIATELY SHUTDOWN ENGINE. PILOT REPORTS OIL ON ENG DECK. TRANSMISSION LOST OIL PRESSURE DURING COOL DOWN. EVIDENCE OF OIL IN ENG PAN. FOUND GARLOCK SEAL POPPED OUT OF FW UNIT AFT CAP. REPLACED AFT CAP. HSG WAS REMOVED DUE TO SEAL PROTRUDING FROM HSG APPROX 0.187 INCHES. ASB 407-07-79 WAS COMPLIED WITH IN THE FIELD 8/11/07. SEAL WAS INSTALLED WITH LOW ADHESION SEALING COMPOUND C-328. REPLACED SEAL WITH NEW ONE.
WORN BUSHINGS. REPLACED 4 EACH BUSHINGS 406310406101 DUE TO WORN. REPAIRED.
MAIN ROTOR SWASHPLATE GREASE SEAL LEAKING. REPAIRED.
WORN BUSHINGS. REPLACED 4 EACH BUSHINGS 406-310-406-101 DUE TO WORN. REPAIRED.
NR 2 SHAFT AND BLOWER ASSY HAS A ROUGH BEARING. REPAIRED.
ENGINE TORQUE INDICATOR WENT TO ZERO IN CRUISE FLIGHT.
MAIN ROTOR BLADE HAS SEPARATION ON BOTTOM OF BLADE. TO BE SENT TO VENDOR.
MAIN ROTOR BLADE HAS SEPARATION ON BOTTOM OF BLADE. TO BE SENT TO VENDOR.
HYD PUMP MAKES NOISE ON LET DOWN.
GPS RECEIVER MEMORY WILL NOT RETAIN WAYPOINTS. FOUND BATTERY VOLTAGE GOOD. REPLACED BUTTONS AND REPAINTED FACEPLATE. BENCH CHECK GOOD.
TRANSCEIVER DOES NOT RECEIVE.
MAIN ROTOR BLADE WEIGHT POCKET UNBONDED AND SCREWS CORRODED.
MAIN ROTOR BLADE HAS WEIGHT POCKET UNBONDED AND SCREWS CORRODED.
MAIN ROTOR BLADE HAS A CRACK ON TRAILING EDGE NEAR TRIM TAB.
TAIL ROTOR GEARBOX INPUT SEAL LEAKING.
HAT BIN STRUCTURE CRACKED.
RESTRAINT ASSY FRAYED AND CORRODED.
TAIL ROTOR RUBBER IS UNBONDING FROM MOUNT.
FUEL DISTRIBUTION HOSE COLLAPSED.
RESTRAINT ASSY FRAYED AND CORRODED.
FRAYED AND CORRODED.
LOW LEVEL SWITCH HAS CORROSION WHERE WIRING EXITS HOUSING.
HEADLINER CRACKED IN SEVERAL PLACES. SCRAPPED.
FUSELAGE PANEL CRACKED IN SEVERAL PLACES. SCRAPPED.
FUSELAGE PANEL CRACKED IN SEVERAL PLACES.
TRIM PANEL CRACKED IN SEVERAL PLACES.
EXHAUST STACK CRACKED.
RELAY CORRODED.
WINDSHIELD DE-FOG NOZZLE IS CRACKED AT MOUNTING HOLE.
CREW SEAT BELTS FRAYED AND CORRODED.
CREW SEAT BELTS FRAYED AND CORRODED.
WINDSHEILD CRAZED.
WINDSHIELD CRAZED.
ENGINE OIL COOLER IS CLOGGED WITH GREASE.
CORROSION ON EXTERIOR OF BOOST PUMP SWITCH.
WORN ROD END BEARING.
FLAG WILL NOT STAY PULLED. REPLACED WITH SERVICEABLE PART.
DC GENERATOR CONTACTOR BURNED. SCRAPPED AND REPLACED PART.
BLADE GRIP PINS INSTALLED UPSIDE DOWN.
LEAD LAG DAMPER BEARINGS WORN.
FUEL TUBE KINKED.
COMPLY WITH 407-11-30. FOUND EXCESSIVE WEAR ON HOUSING OR MAIN ROTOR BRAKE.
MAIN ROTOR BRAKE HAS EXCESSIVE HOUSING WEAR.
TAIL ROTOR DISC PACK IS CORRODED.
MAIN ROTOR DAMPER CORRODED.
STARTER GEN HAS WORN BRUSHES.
FLOAT COVER IS BADLY WORN.
FAILED OPERATIONAL TEST (RAN HOT ABOVE 270 F.)
STICKS IN CLOSED POSITION.
NR NEEDLE INOPERATIVE.
DUPLEX BEARING WORN.
COOLER BLOWER BEARING IS WORN.
BLOWER HOUSING CRACKED.
BEARING WORN. TO BE RETURNED TO VENDOR.
STARTER GENERATOR BRUSHES WORN BEYOND LIMITS.
EXCESSIVE PLAY.
FAILED TO START THREE TIMES WITH NO START OR IGNITION LIGHT.
LINK HAD BEARINGS WORN.
SPACER WORN.
BIPOD MOUNT HAD WORN BEARINGS.
STARTER/GENERATOR BRUSHES WERE EXCESSIVELY WORN.
UNIVERSAL WORN.
BEARING WORN.
WORN BEARINGS.
RUBBER EXTRUDING AND SEPARATING ON BEARING.
BEARING DELAMINATED.
UNIVERSAL HAD WORN BEARING.
SPLINES WORN BEYOND LIMITS ON SHAFT ASSEMBLY.
CARBON SEAL LEAKING.
PRESSURE SWITCH WILL NOT TURN ON LIGHT.
PRESSURE SWITCH NORMALLY IS CLOSED (NOT CLOSED).
SPLINES WORN.
CARBON SEAL LEAKING.
BLOWER HOUSING HAD WORKING AND LOOSE RIVETS.
BIPOD MOUND HAD WORN BEARINGS.
WORN BEARINGS. SERIAL NUMBERS REMOVED ARE H98-2271 AND H98-2327. REPLACED WITH SERIAL NUMBERS E99-0767 AND F99-1678.
STARTER/GENERATOR FAILED 300 HOUR INSPECTION. FOUND BRUSHES WERE EXCESSIVELY WORN, COMMUTATOR WAS BURNT, PITTED AND SHORTED TO GROUND.
DUCT FOUND CRACKED.
WORN BEARINGS.
BELLCRANK UNBONDED.
RUBBER ON MAIN ROTOR GEARBOX MOUNT EXTRUDING.
RUBBER ON MAIN ROTOR GEARBOX MOUNT EXTRUDING.
MAIN ROTOR BLADE CRACKED IN TRIM TAB AREA. SERIAL NUMBERS REMOVED ARE A-625, A-643, A-635, A-653. REPLACED WITH SERIAL NUMBERS A-848, A-1597, A-390, A-649. REFERENCE: DMR NR 686521.
TWO LED SEGMENTS BETWEEN 95 PERCENT AND 100 PERCENT VERY DIM.
CORROSION, UNABLE TO DETECT DURING VISUAL INSPECTION DUE TO LOCATION OF CORROSION.
DAMPER HAS CORROSION, UNABLE TO DETECT DURING VISUAL INSPECTION DUE TO LOCATION OF CORROSION.
UNIVERSAL HAD UNSTAKED BEARING. REFERENCE: DMR NR 686330.
WORN BEARINGS. REFERENCE: DMR NR 686384.
WORN BEARING. REFERENCE: DMR NR 686272.
ROTOR NEEDLE LOCKED AT 110 PERCENT. REFERENCE: DMR NR 686329.
BRUSHES FAILED 300 HOUR INSPECTION. INSPECTED BY ACCESSORY SHOP AND FOUND BRUSHES WERE EXCESSIVELY WORN.
DISC PACK CRACKED.
FLOAT COVER WORN. END CAP MISSING.
FLOAT COVER TORN.
ADAPTER SHAFT AND CLIP WORN ON PUMP.
SPLINE WORN BEYOND LIMITS ON DRIVE RING SET.
TAIL ROTOR GEARBOX MAKING METAL. REFERENCE: DMR NR 686197.
BEARING HAS BLUE EPOXY PEELING.
CORROSION DUE TO NO PREVENTIVE MAINTENANCE.
PITCH HORN HAS CORROSION DUE TO NO PREVENTIVE MAINTENANCE.
REMOVED DURING OVERHAUL AND NDT PROCEDURE. CRACKS WERE FOUND. SERIAL NUMBERS REMOVED ARE A2855, A2844, A2882, AND A2884. REPLACEMENT PART SERIAL NUMBERS ARE A3311, A3592, A3615, AND A3591.
DROOP STOP REMOVED DURING OVERHAUL AND NDT PROCEDURE. CRACKS WERE FOUND.
FORWARD SEAL LEAKING ON FREEWHEEL ASSEMBLY.
RUBBER WORN.
FLOAT COVER WORN AND TORN.
SOLENOID VALVE LEAKING OUT OF TOP SCREW, RIGHT SIDE.
ELASTOMER OIL SOAKED ON BELLCRANK.
DISK COUPLING CRACKED.
DISK COUPLING STRAINED AND STRESSED DUE TO BEARING FAILURE ON THE BLOWER SHAFT ASSY.
270 DEGREE HEAT TEMP TURNED BEARING BLACK. SERIAL NUMBERS REMOVED ARE H98-2252 AND H98-2268.
BEARING FAILURE ON FLYWHEEL.
BLOWER HOUSING SHAFT ASSY HAD A BEARING FAILURE. PART WAS STRESSED AND STRAINED.
FORWARD OIL COOLER BEARING FAILURE.
UNIVERSAL HAS WORN BEARING.
LINK BEARINGS WORN.
CARBON SEAL LEAKING. PART SCRAPPED.
FOUND OVERHEATING MARK ON BEARING JOURNAL.
TAIL ROTOR DRIVESHAFT HAD NR 1 BEARING FAILURE. SERIAL NUMBERS REMOVED ARE K98-0778 AND K98-0786. REPLACEMENT PART SERIAL NUMBERS ARE H98-2271 AND H98-2327.
MECHANICAL DAMAGE DUE TO BALLS FROM BEARING STRIKING IMPELLER.
FOUND SUPPORT YIELD INDICATOR CLEARANCE DECREASED. SCRAPPED YOKE ASSY.
FREEWHEEL UNIT LEAKING.
TRANSMISSION ASSY MAKING METAL.
SPRING BEARINGS WORN IN MAIN ROTOR DRIVE.
VALVE RELEASE FAILED PRESSURE TEST.
FUEL QUANTITY INDICATION INTERMITTENTLY GOES TO FULL SCALE AND ALL SEGMENTS LIT.
DISK COUPLING CRACKED.
DISC SEPARATION.
DISK COUPLING PITTED.
SHAFT ASSEMBLY HAS ROUGH BEARINGS. COMPLY WITH ASB 407-98-23. SERIAL NUMBERS REMOVED ARE H98-0638 AND H98-0649.
STRAP ASSEMBLY HAS RUBBER MISSING.
UNIVERSAL HAS WORN BEARINGS.
DISK COUPLING HAS EXCESSIVE GAP BETWEEN LAMINATES.
SKID TUBE ASSEMBLY IS WORN.
TAIL ROTOR HAS WORN AND ROUGH BEARINGS.
SKID TUBE ASSEMBLY IS WORN.
TAIL ROTOR HAS WORN FEATHERING BEARINGS.
BRUSHES WERE EXCESSIVELY WORN AND BURNT ON EDGES.
CHANNEL CRACKED.
EXHAUAST STACK CRACKED.
SEPARATION AT BLADE TIP, SUSPECTED INVOLVED IN AN OVERSPEED INCIDENT (118.4 PERCENT).
ANGLE CRACKED.
BLOWER HOUSING WORKING RIVETS.
DUCT CRACKED.
BRACKET CRACKED.
LINK HAS WORN BEARINGS. SERIAL NUMBERS REMOVED ARE NHFS-2711 AND NHFS-2446. REPLACEMENT PART SERIAL NUMBERS ARE NHFS-3742 AND NHFS-3784.
ROTOR BRAKE PUCK UNBONDED FROM AFT PAD ASSEMBLY.
HOLE IN FLOAT BAG.
RELIEF VALVE LEAKING.
SHAFT ASSEMBLY HAS WORN SPLINES.
BLOWER HOUSING COMING APART.
BLOWER HOUSING CRACKED.
EXHAUST DUCT CRACKED.
ROUGH BEARINGS. SERIAL NUMBERS REMOVED ARE K97-0661 AND K97-0626.
TRUNNION WORN, ALSO SEAL P/N B56-40-2 LEAKING AND BOOT P/N 406-312-106-101 DETERIORATED DUE TO OIL SATURATION.
RUBBER ON MOUNT COMING LOOSE.
MAIN ROTOR BRAKE PIN WORN.
FLOAT COVER WORN.
MAIN ROTOR LEVER ASSY HAS WORN BUSHINGS. SERIAL NUMBERS REMOVED ARE A1962 AND A1967.
FLOAT COVER WORN.
HUB BUSHINGS WORN.
PRESSURE GAUGE DIAL FACE ROTATES FREELY.
START/DISENGAGE GUARD BROKEN OFF
FUEL PUMP SEAL DRAIN LEAKING.
FUEL PUMP SEAL DRAIN LEAKING.
OIL COOLER LEAKING.
AIRCRAFT WOULD NOT START. FOUND STARTER/GENERATOR BRUSHES HANGING UP AND ONE BRUSH BOX WAS BURNT.
M/R BEAM WORN SPOT FROM HYDRAULIC HOSE.
SERVO CHATTERING INTERMITTENTLY CAUSING HIGH FREQUENCY.
OIL PRESSURE FLUCTUATION.
UNIVERSAL HAS WEAR IN BEARING.
R/H BOOST PUMP LIGHT WOULD NOT COME ON WHEN TURNED OFF.
ROUGH BEARINGS. SERIAL NUMBERS REMOVED ARE K97-0737 AND A98-0536.
T/R AFT SHAFT IS DAMAGED.
OIL TUBE FLARE HAS DEEP GOUGE.
ENGINE BYPASS INDICATION. REPLACED OIL FILTER.
ROUGH BEARING. SERIAL NUMBERS REMOVED ARE K96-0116 AND K96-0134.
REPLACE SEAL AND PACKINGS.
RECEIVED ON AIRCRAFT WITH BYPASS BUTTON POPPED. REPLACED WITH SERVICEABLE FILTER.
ROTOR BRAKE TWO EACH BOLT SHANKS WORN, P/N D0152-1, CAUSING ROTOR BRAKE PAD NOT T RELEASE FROM ROTOR BRAKE DISK. SUSPECT THAT HIGH HEAT FROM DISK CAUSED PAD TO FAIL. REMOVED TWO EACH BOLTS P/N D0152-1 AND 2 EACH PADS P/N D0138-1 AND REPLACED WITH SERVICEABLEITEMS FROM THE KIT.
OIL COOLER CORE LEAKING.
AMP SIDE OF INDICATION WORKS INTERMITTENTLY WHEN INDICATOR IS NOT WORKING. CYCLING CIRCUIT BREAKER SEVERAL TIMES. INDICATOR WILL BEGIN TO WORK.
NICK ON TRAILING EDGE ON BLADE S/N A1678 AND BLADE S/N A1681. REPLACEMENT PART SERIAL NUMBERS ARE A1577 AND A1752.
WILL TEST, BUT THEN GOES DEAD.
TORQUE INDICATOR WOULD NOT INDICATE.
ROTOR TORQUE TRANSMITTER MV OUTPUT TOO HIGH.