N722PH
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
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.
58 reports on file, 1998-11-24 – 2003-06-11.
Part: STOP — SEPARATED (MAIN ROTOR) · airframe 2,565 hrs
MAIN ROTOR STOP SEPARATED.
Part: HMU — FAILED (ENGINE) · airframe 2,536 hrs
STARTS HOT ON BACK TO BACK STARTS WITH TOT REACHING 780 TO 790 DEGREES CELCIUS. REPLACED HMU.
Part: INDICATOR — MALFUNCTIONED (ENGINE TORQUE) · airframe 2,366 hrs
ENGINE TORQUE INDICATOR INDICATED TORQUE EXCEEDENCE.
Part: PRESSURE SWITCH — MALFUNCTIONED (FUEL CELL) · airframe 2,356 hrs
LIGHT STAYS ON. REPLACED FUEL CELL PRESSURE SWITCH
Part: BLADE — SEPARATED (MAIN ROTOR) · airframe 2,353 hrs
MAIN ROTOR BLADE HAS SEPARATION AT TIP. TO BE SENT TO VENDOR.
Part: BEARING — WORN (LINK) · airframe 2,235 hrs
TAIL ROTOR LINK BEARING WORN.
Part: BEARING — WORN (LINK) · airframe 2,235 hrs
TAIL ROTOR LINK BEARING WORN.
Part: BEARING — WORN (T/R HEAD)
FEATHERING BEARINGS WORN. REPAIRED.
Part: UNIVERSAL — WORN (MAIN ROTOR) · airframe 2,493 hrs
MAIN ROTOR UNIVERSAL HAS BEARING WEAR.
Part: BLEED VALVE — FAILED (ENGINE) · airframe 2,355 hrs
HIGH TOT. REPLACED BLEED VALVE.
Earlier reports · 1998–2002 · 48 reports
2002
Part: FRAHM — BROKEN (MAIN ROTOR HEAD) · airframe 2,132 hrs
BROKEN FRAHM ASSY SPRING.
Part: BATTERY — WEAK (MAIN)
BATTERY WEAK.
Part: BEARING — DAMAGED (T/R DRIVESHAFT) · airframe 2,056 hrs
TAIL ROTOR DRIVESHAFT BEARING PRODUCING BLACK GREASE, AND FEELS ROUGH.
Part: CELL — BURNED (BATTERY) · airframe 1,963 hrs
BATTERY CELL BURNED.
Part: BOLT — CORRODED (MLG) · airframe 2,048 hrs
MLG BOLT HAS CORROSION.
Part: BRAKE — WORN (MAIN ROTOR) · airframe 1,962 hrs
MAIN ROTOR BRAKE HAS EXCESSIVE PISTON WEAR IN HOUSING.
Part: UNIVERSAL — WORN (MAIN ROTOR) · airframe 1,968 hrs
MAIN ROTOR UNIVERSAL IS WORN.
Part: COVER — TORN (EMERGENCY FLOAT) · airframe 1,958 hrs
EMERGENCY FLOAT COVER WORN AND TORN.
Part: COVER — TORN (EMERGENCY FLOAT) · airframe 1,958 hrs
EMERGENCY FLOAT COVER WORN AND TORN.
Part: COVER — TORN (EMERGENCY FLOAT) · airframe 1,958 hrs
EMERGENCY FLOAT COVER WORN AND TORN.
2001
Part: SEAL — LEAKING (TRANSMISSION) · airframe 1,945 hrs
LEAKING.
Part: PANEL — CRACKED (CREW DOOR) · airframe 1,894 hrs
CRACKED AND BROKEN IN SEVERAL PLACES. SCRAPPED AND REPLACED WITH SERVICEABLE PANEL.
Part: BLADE — FLAKING (TAIL ROTOR) · airframe 1,897 hrs
PAINT FLAKING OFF BLADES.
Part: FUSEABLE PLUG — FAILED (FLOAT BOTTLE) · airframe 1,922 hrs
FUSIBLE PLUG FAILED RELEASING ALL PRESSURE FROM FLOAT BOTTLE.
Part: SEAT BACK — TORN (COCKPIT) · airframe 1,894 hrs
TORN. SCRAPPED AND REPLACED WITH SERVICEABLE SEAT BACK.
Part: SUPPORT — BROKEN (CABIN) · airframe 1,922 hrs
FOUND SEAT SUPPORT BROKEN IN TWO.
Part: HUB — NOISY (TAIL ROTOR) · airframe 1,894 hrs
CLICKING NOISE WHEN PUSHED TO STOPS.
Part: DISC PACK — CRACKED (TAIL ROTOR) · airframe 1,650 hrs
CRACKED. SCRAPPED IN HOUSE.
Part: SOLENOID VALVE — LEAKING (FLOAT BOTTLE) · airframe 17,511 hrs
AFTER FLOAT BOTTLE CHANGE VALVE ASSY LEAKED NITROGEN FROM SOLENOID OPENING ADJUSTMENT CAP. TO BE RETURNED TO VENDOR.
Part: HOUSING — CRACKED (BLOWER) · airframe 1,715 hrs
BLOWER HOUSING CRACKED.
Part: ADAPTER — LEAKING (TRANSMISSION) · airframe 1,650 hrs
ADAPTER SEAL LEAKING.
Part: INDICATOR — INOPERATIVE (DUAL TACH) · airframe 1,720 hrs
ROTOR NEEDLE INOPERATIVE.
Part: SEAL — FAILED (MAIN ROTOR) · airframe 1,687 hrs
SWASHPLATE HAS A BLOWN GREASE SEAL.
2000
Part: COVER — TORN (FLOAT)
FLOAT COVER TORN.
Part: BEARING — DAMAGED (MAIN ROTOR)
UNABLE TO BALANCE. SERIAL NUMBERS REMOVED ARE H99-1801 AND H99-1785.
Part: CLOCK — SLOW (COCKPIT)
CLOCK LOSES 1 HOUR EVERY 12 HOURS.
Part: SHAFT — DAMAGED (COOLER BLOWER)
UNABLE TO BALANCE SHAFT ASSY.
Part: SWITCH — FAILED (ENGINE)
LIGHT WILL NOT ILLUMINATE IN OFF POSITION.
Part: UNIVERSAL — LEAKING (MAIN ROTOR)
UNIVERSAL LEAKING GREASE FITTING.
Part: FLYWHEEL — WORN (TAIL ROTOR)
FLYWHEEL HAD WORN SPLINES.
Part: IMPELLER — WORN (BLOWER ASSY)
IMPELLER WORN ON BLOWER ASSY.
Part: HOUSING — DAMAGED (BLOWER ASSY)
WORKING RIVETS AND ONE MISSING ON BLOWER HOUSING.
Part: LINK — WORN (TAIL ROTOR)
LINK HAD WORN BEARINGS. SERIAL NUMBERS REMOVED ARE NHFS-3233 AND NHFS-3283. REPLACED WITH SERIAL NUMBERS NHFS-4667.
Part: GAUGE — STICKING (FLOAT)
GAUGE PRESSURE NEEDLE STICKS.
1999
Part: VENT — CRACKED (OIL TANK)
TOP VENT FITTING CRACKED ON TANK ASSEMBLY.
Part: LINE — LEAKING (MLG)
HOSE ASSY LEAKING FROM FITTING. REFERENCE: DMR NR 686355.
Part: BRUSHES — WORN (STARTER/GENERATO)
STARTER/GENERATOR FAILED 300-HOUR INSPECTION. BRUSHES HAD LESS THAT 1/4 LIFE.
Part: TRANSMITTER — FAILED (TORQUE)
TRANSMITTER HAD NO TORQUE INDICATIONS.
Part: UNIVERSAL — WORN (M/R DRIVE)
UNIVERSAL WORN AXIALLY.
Part: CARTRIDGE — INOPERATIVE (FUEL PUMP)
CARTRIDGE INOPERATIVE. REFERENCE: DMR NR 686155.
Part: HOUSING — CRACKED (TAIL ROTOR)
CRACK AT LEFT OUTLET CORNER AND LOOSE RIVETS.
Part: STARTER — WORN (START/GENERATOR)
FAILED 300 HOUR INSPECTION. INSPECTED AND FOUND BRUSHES EXCESSIVELY WORN AND COMMUTATOR WAS GROOVED ON STARTER.
Part: HARNESS — FAILED (FADEC)
FADEC DEGRADE LIGHT ON AFTER SHUTDOWN. COMPUTER SHOWED TORQUE TRANSMITTER PROBLEM FOUND IN FADEC HARNESS. REPLACED WITH SERVICEABLE HARNESS.
Part: SUPPORT SEAL — LEAKING (MAIN ROTOR)
LEAKS AT SEAL.
Part: BEARING — ROUGH (T/R DRIVE)
FAN SHAFT ASSEMBLY HAS ROUGH BEARINGS. COMPLY WITH ASB 407-98-23. SERIAL NUMBERS REMOVED ARE A98-0555 AND A98-0567.
1998
Part: DISK COUPLING — CRACKED (TAIL ROTOR)
DISK COUPLING CRACKED.
Part: DISK COUPLING — CRACKED (TAIL ROTOR)
DISK COUPLING CRACKED.
Part: UNIVERSAL — WORN (MAIN ROTOR)
EXCESSIVE LATERAL PLAY IN BEARINGS IN MAIN ROTOR.