N4999
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| PHI Air Medical, LLC | Operator | on 2016-06-03 | Operator named in NTSB report |
Accident & incident history
Maintenance disclosures
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
76 reports on file, 1999-05-26 – 2016-12-13.
Part: PAN — CRACKED (FUSELAGE) · airframe 8,450 hrs
LT ENGINE PAN SKIN WAS FOUND TO BE CRACKED AT AN OEM NUTPLATE INSTALLATION, USED TO SECURE A SCUPPER DRAIN. THE REPAIR DOCUMENTATION WILL BE SUBMITTED TO A STRUCTURAL FAA-DER FOR APPROVAL. THE ENGINE PAN SKIN WILL THEN BE REPAIRED IN ACCORDANCE WITH THE FAA APPROVED REPAIR DATA.
Part: BEARING — SPALLED (NR 5) · airframe 8,451 hrs
ENGINE NR 5 BEARING REMOVED AND REPLACED DUE TO SPALLING ON OUTER RACE.
Part: DIFFUSER — SEPARATED (ENGINE) · airframe 8,451 hrs
DURING EMS TAKEOFF AT 89-100 FT ENGINE HAD A BANG AND SEVERAL LOUD POPS. ENGINE REMOVED 6-3-16 DUE TO HARD LANDING. COMPRESSOR DIFFUSER EXHIBITED BRAZEMENT SEPARATING ON AFT BACKING PLATE. PART SENT TO MFG FOR FAILURE ANALYSIS.
Part: BEARING — SPALLED (TURBINE WHEEL) · airframe 8,351 hrs
ENGINE REMOVED 3-15-16 DUE TO CYCLED TURBINE WHEELS. NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. REPLACED BEARING.
Earlier reports · 1999–2003 · 72 reports
2003
Part: HOSE — KINKED (FUEL SYS) · airframe 4,193 hrs
INLET FUEL HOSE KINKED. REPLACED HOSE.
Part: PANEL — CRACKED (SEAT) · airframe 4,042 hrs
SEAT PANEL CRACKED.
Part: PANEL — CRACKED (CREW DOOR) · airframe 4,028 hrs
CREW DOOR PANEL CRACKED.
Part: PANEL — CRACKED (COLLECTIVE) · airframe 4,028 hrs
COLLECTIVE PANEL CRACKED.
Part: UNIVERSAL — WORN (MAIN ROTOR) · airframe 4,172 hrs
MAIN ROTOR UNIVERSAL WORN.
Part: UNIVERSAL — WORN (MAIN ROTOR) · airframe 4,172 hrs
MAIN ROTOR UNIVERSAL WORN.
Part: LIGHT — INOPERATIVE (CLOCK) · airframe 3,702 hrs
CLOCK INTERNAL LIGHT INOPERATIVE.
Part: WINDOW — CRACKED (CABIN) · airframe 3,846 hrs
WINDOW CRACKED. SCRAPPED.
Part: INDICATOR — MALFUNCTIONED (MGT) · airframe 3,619 hrs
MGT INDICATOR WILL ONLY READ 75 DEGREES IN FLIGHT.
Part: EXHAUST STACK — CRACKED (ENGINE) · airframe 2,924 hrs
EXHAUST STACK CRACKED.
Part: OIL COOLER — LEAKING (MAIN ROTOR) · airframe 3,723 hrs
MAIN ROTOR GEARBOX OIL COOLER LEAKING.
Part: UNIVERSAL — WORN (MAIN ROTOR) · airframe 3,776 hrs
MAIN ROTOR UNIVERSAL HAS BEARING WEAR.
Part: BUSHING — WORN (M/R HEAD SET) · airframe 3,696 hrs
MAIN ROTOR HEAD BUSHING SET WORN.
Part: LEVER — WORN (MAIN ROTOR) · airframe 3,696 hrs
MAIN ROTOR LEVER ASSY WORN.
Part: GPS — MALFUNCTIONED (COCKPIT) · airframe 3,913 hrs
GPS RECEIVER NOT HOLDING MEMORY. SENT TO ASM FREEFLIGHT FOR INSPECTION AND REPAIR.
Part: CARTRIDGE — INOPERATIVE (FUEL BOOST) · airframe 3,825 hrs
CARTRIDGE INOPERATIVE. TO BE SENT TO VENDOR FOR REPAIR.
2002
Part: DISC PACK — CRACKED (TAIL ROTOR) · airframe 3,491 hrs
DISC PACK CRACKED.
Part: UNIVERSAL — WORN (M/R DRIVE) · airframe 3,514 hrs
UNIVERSAL HAS A BEARING WORN.
Part: CARTRIDGE — FAILED (FUEL SYSTEM) · airframe 3,514 hrs
RT FUEL TRANSFER LIGHT ILLUMINATED IN FLIGHT.
Part: BLEED VALVE — FAILED (ENGINE) · airframe 3,486 hrs
ENGINE HAD A SUDDEN INCREASE IN TOT CAUSING A LOW POWER ENGINE. REPLACED WITH SERVICEABLE BLEED VALVE.
Part: COVER — DETERIORATED (EMERGENCY FLOAT) · airframe 3,505 hrs
EMERGENCY FLOAT COVER FRONT CAP DETERIORATED.
Part: COVER — DAMAGED (EMERGENCY FLOAT) · airframe 3,384 hrs
EMERGENCY FLOAT COVER END CAPS DO NOT STAY CLOSED.
Part: CROSSTUBE — CORRODED (MLG) · airframe 3,252 hrs
FOUND PITS OF CORROSION UNDER "T" BOLT AT A DEPTH OF .032. SCRAPPED CROSSTUBE.
Part: FILTER — CLOGGED (ENGINE OIL) · airframe 3,335 hrs
BYPASS BUTTON EXTENDED ON DAILY. ENGINE OIL FILTER CLOGGED. REPLACED WITH SERVICEABLE PART.
Part: HOUSING — CRACKED (COOLER BLOWER) · airframe 3,347 hrs
TAIL ROTOR COOLER BLOWER HOUSING IS CRACKED.
Part: STEP — CORRODED (AIRSTAIR) · airframe 3,252 hrs
CORRODED BEYOND LIMITS AIRSTAIR STEP. SCRAPPED.
Part: DISC PACK — CRACKED (TAIL ROTOR) · airframe 3,347 hrs
TAIL ROTOR DISC PACK CRACKED.
Part: SPLINE ADAPTER — WORN (T/R GEARBOX) · airframe 3,242 hrs
SPLINE ADAPTER HAS WORN SPLINES.
Part: CROSSTUBE — CORRODED (MLG) · airframe 3,252 hrs
MLG CROSSTUBE HAS CORROSION.
Part: LATCH — WORN (PAX DOOR) · airframe 3,172 hrs
LATCHES WORN AT HINGE PIN MOUNT HOLES. SCRAPPED AND REPLACED WITH SERVICEABLE PART.
Part: ENGINE — FAILED (ENGINE BAY) · airframe 3,021 hrs
FADEC FAILURE ON ENG START. TOT MAXED AT 1063 DEGREES. RETURNED ENGINE TO ROLLS ROYCE FOR REPAIR
Part: ECU — FAILED (ENGINE) · airframe 3,021 hrs
FADEC FAILURE ON ENG. START. T.O.T. MAXED AT 1063 DEGREES. RETURNED TO ROLLS ROYCE
Part: GAUGE — DAMAGED (FLOAT PRESSURE) · airframe 3,138 hrs
EMERGENCY FLOAT PRESSURE GAUGE FACEPLATE SPINS INSIDE GAUGE.
Part: PRESSURE SWITCH — MALFUNCTIONED (M/R GEARBOX) · airframe 3,114 hrs
MAIN ROTOR GEARBOX PRESSURE SWITCH HAS NO LIGHT INDICATION ON RUN UP.
Part: DISC PACK — CRACKED (TAIL ROTOR) · airframe 3,099 hrs
TAIL ROTOR DISC PACK IS CRACKED.
Part: EXHAUST STACK — CRACKED (ENGINE) · airframe 3,021 hrs
ENGINE EXHAUST STACK IS CRACKED.
Part: SWITCH — FAILED (COCKPIT) · airframe 2,331 hrs
LOW LEVEL CAUTION LIGHT WOULD NOT EXTINGUISH.
Part: SHAFT — WORN (FREEWHEEL UNIT) · airframe 3,021 hrs
FREEWHEEL UNIT SHAFT HAS SPLINES WORN.
Part: BEARING — WORN (TAIL ROTOR HUB) · airframe 3,584 hrs
TAIL ROTOR HUB HAS WORN BEARINGS.
Part: SWITCH — STUCK (MICROPHONE) · airframe 2,829 hrs
MICROPHONE SWITCH STUCK IN OPEN POSITION.
2001
Part: GAUGE — CONTAMINATED (FLOAT PRESSURE) · airframe 2,787 hrs
PRESSURE GAUGE IS FULL OF MOISTURE.
Part: WARN PANEL — MALFUNCTIONED (COCKPIT) · airframe 2,283 hrs
HYD. SYSTEM LIGHT FLASHING IN FLIGHT.
Part: DISC PACK — FAILED (TAIL ROTOR) · airframe 2,724 hrs
FORWARD BLOWER SHAFT BEARING FAILED.
Part: HOUSING — CRACKED (BLOWER) · airframe 2,724 hrs
BLOWER HOUSING CRACKED.
Part: SERVO — WORN (CYCLIC)
PISTON ROD END BEARING WORN.
Part: BLEED VALVE — FAILED (ENGINE) · airframe 2,724 hrs
LOW POWER ENGINE. IN SHOP REPAIR.
Part: COVER — DETERIORATED (MLG FLOAT) · airframe 2,650 hrs
DETERIORATED.
Part: SHAFT — FAILED (COOLER BLOWER) · airframe 2,724 hrs
IN CRUISE, AIRCRAFT DEVELOPED SEVERE VERTICAL VIBRATION. FOUND FORWARD BEARING ON NR 2 TAIL ROTOR OIL COOLER BLOWER SHAFT FAILURE.
Part: COVER — WORN (FLOAT) · airframe 2,545 hrs
FLOAT COVER HAS WORN END CAPS.
Part: BEARING — STUCK (LINK ASSY) · airframe 2,570 hrs
STICKING BEARING. SENT TO BELL HELICOPTER TEXTRON FOR CREDIT AGAINST REPLACEMENT PART PURCHASED. REFERENCE: DMR#720438.
Part: INDICATOR — INOPERATIVE (COCKPIT) · airframe 2,556 hrs
TORQUE INDICATOR LIGHT INOPERATIVE.
Part: DISC PACK — CRACKED (TAIL ROTOR) · airframe 2,659 hrs
TAIL ROTOR DISC PACK IS CRACKED.
Part: BELLCRANK — CHAFED (TAIL ROTOR) · airframe 2,516 hrs
CHAFED FROM CONTROL TUBE.
Part: SKIN — CRACKED (TAILBOOM) · airframe 2,516 hrs
CRACK IN SKIN ON LEFT HAND SIDE. SENT TO BELL HELICOPTER TEXTRON FOR CREDIT AGAINST REPLACEMENT PART PURCHASED. REFERENCE: DMR#720464.
Part: IGNITER BOX — INTERMITTENT (ENGINE) · airframe 2,280 hrs
WORKS INTERMITTENTLY. AIRCRAFT WOULD NOT LIGHT OFF. TO BE RETURNED TO VENDOR.
Part: UNIVERSAL JOINT — WORN (M/R PITCH CHANGE) · airframe 2,311 hrs
BEARING WORN. TO BE RETURNED TO VENDOR.
Part: TRANSCEIVER — FAILED (COCKPIT) · airframe 2,187 hrs
COULD NOT BE PICKED UP BY TOWER. SENDING TO VENDOR FOR REPAIR.
Part: LINK — WORN (TAIL ROTOR) · airframe 2,246 hrs
WORN BEARINGS.
Part: LINK — WORN (TAIL ROTOR) · airframe 2,246 hrs
WORN BEARINGS.
Part: RELAY — INTERMITTENT (COCKPIT) · airframe 2,237 hrs
INTERMITTENT IGNITION WHENEVER STARTER IS LATCHED.
Part: RELAY — MALFUNCTIONED (GENERATOR) · airframe 2,258 hrs
INTERMITTENT START LIGHT.
Part: INDICATOR — INTERMITTENT (RADAR ALTIMETER) · airframe 1,939 hrs
INTERMITTENT..
2000
Part: SWITCH — FAILED (ENGINE)
PRESSURE SWITCH NOT WORKING PROPERLY. LIGHT STAYS OFF.
Part: GAUGE — LOOSE (FLOAT)
INTERNAL FACE LOOSE ON PRESSURE GAUGE.
1999
Part: BRUSHES — WORN (STARTER/GEN)
STARTER/GENERATOR FAILED 300 HOUR INSPECTION. BRUSHES WERE EXCESSIVELY WORN AND COMMUTATOR WAS PITTED.
Part: ADAPTER — WORN (T/R SPLINE)
ADAPTER HAD WORN SPLINES.
Part: INDICATOR — FAILED (ENG OIL TEMP)
NO ENGINE OIL INDICATION ON START-UP.
Part: INDICATOR — FAILED (ENG OIL PRESS)
ENGINE OIL TEMPERATURE PRESSURE GOES FULL TO ZERO CONSTANTLY.
Part: BEARING — WORN (TAIL ROTOR)
WORN BEARINGS.
Part: TRANSMITTER — FLUCTUATING (OIL PRESSURE)
ENGINE OIL PRESSURE FLUCTUATES.
Part: INDICATOR — INTERMITTENT (ENG OIL TEMP)
ENGINE OIL TEMPERATURE INTERMITTENTLY DROPS TO ZERO FOR OIL PRESSURE.
Part: PUMP — LEAKING (HYDRAULIC SYS)
PUMP LEAKING FROM SHAFT AREA. REMOVED FROM AIRCRAFT.