Bell 407

Service difficulty reports · 6,813

Newest first. General aviation reporting is voluntary.

Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE aircraft_model_key = '407'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR BH1R708876Yoke · out of toleranceDURING FIRST OVERHAUL OF TAIL ROTOR HUB, YOKE ASSEMBLY WAS FOUND TO HAVE BOTHE INBOARD BEARING RACES WORN OUT OF LIMITS. REMOVED AND REPLACED YOKE.Jan 25, 2001 · N407LR · Bell 407 · Tail Rotor HeadSDR 20010228CW005Yoke · out of positionINBOARD BEARINGS 2EA WERE FOUND TO HAVE SHIFTED IN YOKE APPROXIMATELY .050 IN OFF CENTER. ONE YOKE BORE WAS WORN BEYOND LIMITS.Jan 24, 2001 · N407LR · Bell 407 · Tail Rotor HeadSDR 2001F00608Disc Pack · crackedDURING 25 HOUR AD INSPECTION, THE COUPLING IS CRACKED, PROBABLE CAUSE IS EXCESSIVE RIGIDITY IN BEARING MOUNT SYSTEM. ALLOW TAILROTOR DRIVESHAFT TO FLOAT SO DISC PACKS DO NOT FLEX AS MUCH OR AS OFTEN. (M)Jan 22, 2001 · N697AL · Bell 407 · Tail Rotor Drive ShaftSDR 20010130CW006Bearing · failedT/ROTOR, D/SHAFT BEARING PN 407340339101 FAILED. RESULTING IN THE LOSS OF BALL BEARINGS, SEALS AND GREASE. DAMAGE TO THE FOLLOWING ITEMS WAS CAUSED BY BEARING FAILURE. BEARING WAS INSTALLED IN NR1 POSITION OF TAIL ROTOR HANGER BEARINGS. DAMAGED ITEMS TO FJan 8, 2001 · N407JR · Bell 407 · Tail Rotor Drive ShaftSDR R7MR32718Fuel Filter · inoperativePRESSURE TEST INOPERTIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jan 4, 2001 · N911LN · Bell 407 · Fuel StorageSDR 2001F00607Disc Pack · crackedDURING 25 HOUR AD INSPECTION, THE COUPLING IS CRACKED, PROBABLE CAUSE IS EXCESSIVE RIGIDITY IN BEARING MOUNT SYSTEM. ALLOW TAILROTOR DRIVESHAFT TO FLOAT SO DISC PACKS DO NOT FLEX AS MUCH OR AS OFTEN. (M)Dec 19, 2000 · N697AL · Bell 407 · Tail Rotor Drive ShaftSDR 20010123CW009Hub · debondedRUBBER DEBONDED IN FLIGHT, M/R HUB DAMPER ELASTOMERIC.Dec 19, 2000 · N407BR · Bell 407 · Main Rotor HeadSDR 20001229SH014Blade · crackedDURING DAILY INSPECTION, BLADE CRACKED AT WEEP HOLE, ON THE INBOARD LEADING EDGE. CRACK EXTENDED AFT FOR ABOUT 1.50 INCHES. (X)Dec 6, 2000 · N407AL · Bell 407 · Tail Rotor BladesSDR 20001229SH015Blade · crackedDURING DAILY INSPECTION, BLADE CRACKED AT WEEP HOLE, ON THE INBOARD LEADING EDGE. CRACK EXTENDED AFT FOR ABOUT 1.25 INCHES. (X)Dec 5, 2000 · N497AL · Bell 407 · Tail Rotor BladesSDR 20010130CW003Indicator · inoperativeH A S REPLACED WITH NEW MGT INDICATOR FROM BELL HELICOPTER.Dec 3, 2000 · N96JJ · Bell 407 · Rotor Drive Indicating SystemSDR CA010117006Mount · cracked(CAN) ENGINE CAME IN FOR REPAIR FOR SMOKING ON SHUTDOWN. AFTER TESTING THE ENGINE, IT WAS NOTICED THAT THERE WAS OIL PRESENT IN THE NR1 NOZZLE AREA. UPON DISSASSEMBLY, A SMALL CRACK WAS FOUND ON THE NR1 NOZZLE MOUNT FACE. AFTER CLEANING, IT WAS NOTED THAT THE Nov 28, 2000 · Bell 407 · Turbine SectionSDR R7MR32717Battery · inoperativeWILL NOT HOLD CHARGE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Nov 21, 2000 · N407SJ · Bell 407 · Battery/Charger SystemSDR 20001219SH024Shaft · wornDURING 2,500 HOUR OVERHAUL, SPLINES WERE WORN BELOW LIMITS. (X)Nov 16, 2000 · N607AL · Bell 407 · Engine/Transmission CouplingSDR 20001207SH004Bearing · roughC/W THE INTENT OF HD 2000-02-12 BY INSPECTING OIL COOLER BLOWER D/S BEARINGS. AFT BEARING FOUND ROUGH RUNNING. (X)Nov 16, 2000 · N58236 · Bell 407 · Tail Rotor Drive ShaftSDR 20001206SH018Bearing · roughC/W THE INTENT OF AD 2000-02-12 BY INSPECTING OIL COOLER BLOWER DRIVESHAFT BEARINGS. AFT BEARING FOUND ROUGH RUNNING. (X)Nov 16, 2000 · N1116H · Bell 407 · Tail Rotor Drive ShaftSDR 20001206SH005Nozzle · brokenTURBINE RECEIVED IN SHOP TO PERFORM 2000 HOUR OVERHAUL. UPON REMOVAL OF OUTER COMBUSTION CASE AND COMBUSTION LINER, FOUND A HOLE IN DOME OF 1ST STAGE SHIELD. ALSO, FOUND THE BROKEN PIECE LODGED ON 1ST STAGE NOZZLE VANE. POSSIBLE IMPROPER METAL USED TO MAKE Nov 13, 2000 · N487AL · Bell 407 · Turbine Engine Combustion SectionSDR 20001206SH008Drive Shaft · failedIN-FLIGHT, PILOT HEARD A LOUD POP. LANDED AT THE NEAREST PLATFORM AND AFTER SHUT DOWN, FOUND FORWARD FLEXURE ON INPUT DRIVESHAFT HAD FAILED. ONE OF THE FORWARD FLEXURES FAILED AT THE BOLT HOLE AND A PORTION OF THE FLEXURE WENT THROUGH THE TRANSMISSION DECK/COct 29, 2000 · N687AL · Bell 407 · Tail Rotor Drive ShaftSDR 20001206SH006Duct · crackedDURING DAILY INSPECTION, FOUND OIL COOLER BLOWER CRACKED. (X)Oct 25, 2000 · N427AL · Bell 407 · Engine Oil CoolerSDR R7MR32719Horn · inoperativeLOW VOLUME(WEAK). REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Oct 24, 2000 · N407SJ · Bell 407 · Central WarningSDR 20001108SH041Relay · failedSTART DELAY FAILED/INTERMITTENT. DURING START SEQUENCE, REPLACED PART PER BHT TECH REP. (X)Oct 18, 2000 · N911FS · Bell 407 · Engine Starting SystemSDR 20001101SH030Tube · damagedFOUND DURING SCHEDULED INSPECTION, MECHANICAL DAMAGE FROM AFT BOLTHEAD AT AFT BELLCRANK. REPLACED WITH NEW CONTROL TUBE FROM BELL HELICOPTER.Oct 16, 2000 · N52AZ · Bell 407 · Tail Rotor Control SystemSDR AU001016Blade · fod(AUS) TAIL ROTOR BLADE DAMAGED BY DZUS FASTENER WHICH SEPARATED FROM THE TAIL ROTOR GEARBOX COWLING. FOD. (X)Oct 9, 2000 · Bell 407 · Tail Rotor BladesSDR 20001206SH003Shaft · wornDURING SEAL REPAIR, FOUND WORN SPLINES. (X)Sep 22, 2000 · N557AL · Bell 407 · Engine/Transmission CouplingSDR 20001108SH040Turbine Wheel · damagedDURING APPROACH TO LAND, PILOT EXPERIENCED A LOUD CONTINUOUS NOISE COMING FROM THE ENGINE. ALL ENGINE INSTRUMENTS WERE NORMAL. ENGINE WAS INSPECTED BY MAINT, NO OBVIOUS MALFUNCTIONS WERE NOTED. DURING ENGINE RUN-UP TO ISOLATE ENGINE NOISE, THE ENGINE CHIP DSep 22, 2000 · N905MC · Bell 407 · Turbine SectionSDR 20001025SH016Disc Pack · crackedDURING 25-HOUR AD INSPECTION, FOUND FORWARD SEGMENT CRACKED ACROSS THE SPAN. (X)Sep 5, 2000 · N577AL · Bell 407 · Tail Rotor Drive ShaftSDR 20001113SH011Housing · crackedDURING DAILY INSPECTION, FOUND HOUSING CRACKED AND RIVETS MISSING DUE TO HIGH VIBRATION, HOUSING SCRAPPED. (X)Aug 30, 2000 · N427AL · Bell 407 · Engine Oil Distribution (Airframe Furnished)SDR 20001026SH002Disc Pack · crackedDURING 25-HOUR AD INSPECTION, TIME SINCE LAST INSPECTION IS 16.6 HOURS. FORWARD SEGMENT OF THE DISC PACK IS CRACKED ACROSS THE SPAN. (X)Aug 24, 2000 · N697AL · Bell 407 · Tail Rotor Drive ShaftSDR 20001113SH010Pinion Gear · making metalDISASSEMBLED GEARBOX DUE TO METAL IN OIL. CLEANED AND INSPECTED, FOUND EXCESSIVE GALLING ON PINION GEAR AND TORQUEMETER GEAR TEETH. PINION GEAR HAD EXCESSIVE GALLING ON GEAR TEETH DUE TO IMPROPER MESHING OF T/M AND PINION GEARS. SECONDARY DAMAGE: T/M GEAR Aug 19, 2000 · N417AL · Bell 407 · Turbine Engine Reduction GearSDR 20001024SH002Disc Pack · crackedDURING 25-HOUR AD INSPECTION, FOUND FORWARD SEGMENT CRACKED ACROSS ONE SPAN. (X)Aug 16, 2000 · N417AL · Bell 407 · Tail Rotor Drive ShaftSDR 20000907SH014Bearing · damagedREPLACED WITH NEW BEARINGS FROM BELL HELICOPTER. REPLACED IAW ASB 407-00-35, NDT PER AD 2000-02-12. (X)Aug 15, 2000 · N52AZ · Bell 407 · Tail Rotor Drive ShaftSDR 20000907SH013Bearing · damagedBEARING REPLACED WITH NEW BEARINGS FROM BELL HELICOPTER. REPLACED IAW ASB 407-00-35, NDT PER AD 2000-02-12. (X)Aug 15, 2000 · N52AZ · Bell 407 · Tail Rotor Drive ShaftSDR CA000921005Disc Pack · cracked(CAN) CRACKS ON FORE AND AFT OUTER DISC SEGMENTS. INSTALLED AT 1202.8 HOURS, DECEMBER 12, 1999. NR 7 BEARING INSTALLED AT 1060.2 HOURS, SEPTEMBER 17, 1999. NR 3 BEARING (UNDER OIL COOLER).Aug 14, 2000 · Bell 407 · Tail Rotor Drive ShaftSDR 20000912SH013Sun Gear · making metalTRANSMISSION ASSEMBLY MAKING METAL. SUN GEAR UPPER TEETH PITTED (BREAKING DOWN). SUN GEAR SCRAPPED. (X)Aug 9, 2000 · N607AL · Bell 407 · Main Rotor GearboxSDR 20001206SH007Housing · crackedDURING DAILY INSPECTION, FOUND OCB HOUSING CRACKED DUE TO VIBRATION. (X)Aug 8, 2000 · N587AL · Bell 407 · Tail Rotor Drive ShaftSDR 20000912SH006Duct · crackedDURING DAILY INSPECTION, FOUND A CRACK IN THE CORNER. (X)Aug 8, 2000 · N587AL · Bell 407 · Rotorcraft Cooling Fan SystemSDR 20000912SH014Disc Pack · crackedDURING 25-HOUR AD INSPECTION, FOUND AFT SEGMENT IS CRACKED ACROSS THE SPAN IN TWO PLACES 180 DEGREES APART. (X)Aug 6, 2000 · N627AL · Bell 407 · Tail Rotor Drive ShaftSDR 20000912SH012Disc Pack · crackedDURING 25-HOUR AD INSPECTION, FOUND AFT SEGMENT CRACKED ACROSS THE SPAN. (X)Aug 2, 2000 · N687AL · Bell 407 · Tail Rotor Drive ShaftSDR 20000912SH018Sleeve · bindingPILOT REPORTED AN INTERMITTENT BIND. INTERMITTENT BIND IN SERVO ACTUATOR. (X)Jul 31, 2000 · N587AL · Bell 407 · Rotorcraft Servo SystemSDR 20000912SH004Structure · crackedDURING DAILY SERVICE CHECK AND AD 2000-06-10/ASB 407-99-29 REVISION A, FOUND CRACK IN TAILBOOM SKIN FROM UNDER THE HORIZONTAL STABILIZER SUPPORT TO THE FIRST RIVET ABOVE THE SUPPORT. LOCATION LEFT AFT OF THE HORIZONTAL STABILIZER AT THE FORMER BOOM STA 120.75Jul 29, 2000 · N497AL · Bell 407 · Rotorcraft Tail BoomSDR 20001025SH017Pinion Gear · failedDISASSEMBLED GEARBOX DUE TO METAL IN OIL. CLEANED AND INSPECTED, FOUND EXCESSIVE GALLING ON PINION GEAR AND T/M GEAR TEETH. PINION GEAR HAD EXCESSIVE GALLING ON GEAR TEETH DUE TO IMPROPER MESHING OF T/R AND PINION GEAR. SECONDARY DAMAGE: T/M GEAR P/N 68936Jul 27, 2000 · N537AL · Bell 407 · Main Rotor GearboxSDR 20000804SH010Bearing · roughTAIL ROTOR HANGER BEARINGS, PN 407-340-339-103, HAVE BEEN FOUND ROUGH AND FAILED PREMATURELY ON MANY OCCASIONS DURING INSPECTIONS. THE GREASE USED TO LUBRICATE THESE BEARINGS IS BEING FORCED OUT BY SUCTION CREATED BY THE OIL COOLERS ROTATING IMPELLER (FAN). Jul 26, 2000 · N517R · Bell 407 · Tail Rotor Drive ShaftSDR 20000804SH009Bearing · roughTAIL ROTOR HANGER BEARINGS, P/N 407-340-339-103, HAVE BEEN FOUND ROUGH AND FAILED PREMATURELY ON MANY OCCASIONS DURING INSPECTIONS. THE GREASE USED TO LUBRICATE THESE BEARINGS IS BEING FORCED OUT BY SUCTION CREATED BY THE OIL COOLERS ROTATING IMPELLER (FAN). Jul 26, 2000 · N407PR · Bell 407 · Tail Rotor Drive ShaftSDR 20000804SH008Bearing · roughTAIL ROTOR HANGER BEARINGS, PN 407-340-339-103, HAVE BEEN FOUND ROUGH AND FAILED PREMATURELY ON MANY OCCASIONS DURING INSPECTIONS. THE GREASE USED TO LUBRICATE THESE BEARINGS IS BEING FORCED OUT BY SUCTION CREATED BY THE OIL COOLERS ROTATING IMPELLER (FAN). Jul 26, 2000 · N407AK · Bell 407 · Tail Rotor Drive ShaftSDR 20000804SH007Bearing · roughTAIL ROTOR HANGER BEARINGS, P/N 407-340-339-103, HAVE BEEN FOUND ROUGH AND FAILED PREMATURELY ON MANY OCCASIONS DURING INSPECTIONS. THE GREASE USED TO LUBRICATE THESE BEARINGS IS BEING FORCED OUT BY SUCTION CREATED BY THE OIL COOLERS ROTATING IMPELLER (FAN).Jul 26, 2000 · N407JR · Bell 407 · Tail Rotor Drive ShaftSDR 20001206SH002Duct · crackedDURING DAILY INSPECTION FOUND DUCT ASSY CRACKED IN CORNERS. (X)Jul 24, 2000 · N527AL · Bell 407 · Engine Collector/Tailpipe/NozzleSDR 20000912SH016Bracket · crackedAFTER LANDING AND SHUT-DOWN AT OFFSHORE PLATFORM MC268. MOUNTING BRACKETS FOR THE LEFT CENTER SLAT WERE CRACKED AND BROKEN ALLOWING SLAT TO DEPART THE AIRCRAFT. LEFT VERTICAL FINLET WAS DAMAGED BY THE MISSING SLAT. (X)Jul 22, 2000 · N647AL · Bell 407 · Leading Edge DevicesSDR 20000912SH015Bracket · crackedPILOT NOTICED THE LEFT CENTER SLAT MISSING AFTER LANDING AND SHUT-DOWN AT OFFSHORE PLATFORM MC268. MOUNTING BRACKETS FOR THE LEFT CENTER SLAT WERE CRACKED AND BROKEN ALLOWING SLAT TO DEPART THE AIRCRAFT. LEFT VERTICAL FINLET WAS DAMAGED BY THE MISSING SLAT. Jul 22, 2000 · N647AL · Bell 407 · Leading Edge DevicesSDR 20000912SH005Fuel Cap · leakingDURING DAILY INSPECTION, FOUND FUEL CAP LEAKING, CRACKED AT LOCKING MECHANISM. (X)Jul 21, 2000 · N427AL · Bell 407 · Fuel StorageSDR 20000721SH039Extinguisher · leakingFIRE EXTINGUISHER, BELL PN 40000, TRADE NAME ''RIGHT-OUT''TM IS STANDARD EQUIPMENT FROM THE BELL FACTORY. THIS ONE LEAKED DOWN ON A FLIGHT TO THE REPAIR STATION. AIRCRAFT TT 38.8 HOURS. THE HELICOPTER WAS DELIVERED IN MAY, 2000, AT 16.0 HRS. HAPPENED DURINJul 21, 2000 · N888DJ · Bell 407 · Fire Bottle, PortableSDR 20000721SH014Extinguisher · leakingFIRE EXTINGUISHER, BELL PN 40000, TRADE NAME ''RIGHT-OUT'' TM, IS STANDARD EQUIPMENT FROM THE BELL FACTORY. SHIP CAME IN FOR AN ANNUAL INSPECTION. THE FIRE EXTINGUISHER WEIGHT WAS FOUND 56 GRAMS LIGHT AND UNAIRWORTHY. (X)Jul 21, 2000 · N98JT · Bell 407 · Fire Bottle, Portable
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