Bell 412

Service difficulty reports · 4,516

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 = '412'
  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 HEEA966711Transceiver · defectiveTRANSCEIVER INOPERATIVE; WEAK RECEIVE ON SOME CHANNELS.Feb 20, 1996 · N108X · Bell 412 · DME/TACAN SystemSDR ERAA96192Bearing · defectiveBEARING HAS EXCESSIVE RADIAL & AXIAL PLAY.Feb 20, 1996 · N167EH · Bell 412 · Main Rotor Mast/SwashplateSDR 96ZZZX1074Altimeter · erraticALTIMETER ERRATIC. REPLACED WITH NEW FIXTURE.Feb 20, 1996 · N92130 · Bell 412 · Altimeter, Barometric/EncoderSDR 96ZZZX1073Coupling · pittedDRIVE SHAFT COUPLING PITTED (2 EACH). S/N A732 AND A730. REPLACED WITH NEW FIXTURE.Feb 20, 1996 · N92130 · Bell 412 · Main Rotor Drive SystemSDR 96ZZZX1067Coupling · pittedDRIVE SHAFT COUPLING (2 EACH) PITTED. S/N A719 AND A714. REPLACED WITH NEW FIXTURE.Feb 20, 1996 · N145H · Bell 412 · Main Rotor Drive SystemSDR 96ZZZX1066Coupling · pittedDRIVE SHAFT COUPLING (2 EACH PITTED). S/N A984 AND A981. REPLACED WITH NEW FIXTURE.Feb 20, 1996 · N145H · Bell 412 · Main Rotor Drive SystemSDR 96ZZZX1065Inverter · failedSTATIC INVERTER FAILED. REPLACED WTIH NEW FIXTURE.Feb 20, 1996 · N145H · Bell 412 · AC InverterSDR 96ZZZX1064Fdau · defectiveFDAU DEFECTIVE. REPLACED WITH NEW FIXTURE.Feb 20, 1996 · N145H · Bell 412 · Flight Management Computing Hardware SystemSDR 96ZZZX1063Coupling · pittedDRIVE SHAFT COUPLING PITTED. S/N A977 AND A906. REPLACED WITH NEW FIXTURE.Feb 20, 1996 · N3293G · Bell 412 · Main Rotor Drive SystemSDR 96ZZZX1062Coupling · pittedM/R DRIVE COUPLING PITTED. REPLACED WITH NEW FIXTURE.Feb 20, 1996 · N3293G · Bell 412 · Main Rotor Drive SystemSDR 96ZZZX1061Mixing Valve · defectiveHEATER FAILED DUE TO MIXING VALVE DEFECTIVE. REPLACED WITH NEW FIXTURE.Feb 20, 1996 · N3293G · Bell 412 · Heating SystemSDR 96ZZZX1058Sun Gear Tooth · failureTRANSMISSION SUN GEAR TOOTH FAILURE. REPLACED WTIH NEW FIXTURE.Feb 20, 1996 · N900BH · Bell 412 · Main Rotor GearboxSDR 96ZZZX1057Coupling · pittedDRIVE COUPLING PITTED. REPLACED WTIH NEW FIXTURE.Feb 20, 1996 · N2FOR · Bell 412 · Main Rotor Drive SystemSDR 96ZZZX1056Seal · debondedDRIVE SHAFT SEAL DEBONDED (2 EACH). REPLACED WITH NEW FIXTURE.Feb 20, 1996 · N2FOR · Bell 412 · Main Rotor Drive SystemSDR 96ZZZX1055Coupling · pittedDRIVE SHAFT COUPLING HAS PITTED TEETH. REPLACED WITH NEW FIXTURE.Feb 20, 1996 · N2FOR · Bell 412 · Main Rotor Drive SystemSDR 96ZZZX1054Coupling · pittedINTER DRIVE COUPLING PITTED. REPLACED WITH NEW FIXTURE.Feb 20, 1996 · N2FOR · Bell 412 · Main Rotor Drive SystemSDR 96ZZZX1053Coupling · pittedDRIVE SHAFT COUPLING PITTED. REPLACED WITH NEW FIXTURE.Feb 20, 1996 · N2FOR · Bell 412 · Main Rotor Drive SystemSDR 96ZZZX1051Seal · debondedDRIVE SHAFT SEAL DEBONDED. REPLACED WITH NEW FIXTURE.Feb 20, 1996 · N2FOR · Bell 412 · Main Rotor Drive SystemSDR AU960319Bearing · damaged(AUS) MAIN ROTOR BLADE PITCH LINK ELASTOMERIC BEARING FAILED AROUND INNER RACEFeb 19, 1996 · Bell 412 · Main Rotor HeadSDR AU960318Spindle · failed(AUS) MAIN ROTOR HEAD SPINDLE ASSEMBLY ELASTOMERIC DAMPER BEARING SHEAREDFeb 16, 1996 · Bell 412 · Main Rotor HeadSDR HEEA966695Bearing · wornBLADE BEARINGS WORN BEYOND LIMITS. (Feb 15, 1996 · N911FD · Bell 412 · Tail Rotor BladesSDR HEEA966687Loran · defectiveCDU BLANKS OUT ON BRG/DIST. SELECTION - GIVES NO DATA.Feb 12, 1996 · N22608 · Bell 412 · Long-Range Navigation (LORAN) SystemSDR HEEA966676Blade · paint peelT/R BLADE PAINT PEELING AND FILLER MISSING.Feb 8, 1996 · N911FD · Bell 412 · Tail Rotor BladesSDR HEEA966663Cvr · inoperativeCVR INOPERATIVE.Feb 6, 1996 · N2149S · Bell 412 · Audio/Video MonitoringSDR HEEA966657Control · defectiveCPL LIGHT WILL NOT COME ON WHEN CPL SWITCH IS PUSHED.Feb 6, 1996 · N108X · Bell 412 · Autopilot SystemSDR HEEA966655Tarsyn 333 · fail testFAILED FAST MCHRONIZATION RATE TEST #8.4 ON SST.Feb 6, 1996 · N3893P · Bell 412 · Autopilot SystemSDR HEEA966653Indicator · reads lowINDICATES 5 KNOTS LOW THROUGHOUT SCALE. SENT TO MASCO FOR INSPECTION AND REPAIR.Feb 6, 1996 · N3893P · Bell 412 · Airspeed/Mach IndicatorSDR HEEA966638Control Unit · failedCONTROL UNIT FAILED. #2 DC GENERATOR INOPERATIVE.Feb 5, 1996 · N2014K · Bell 412 · DC Generating SystemSDR HEEA966635Control Unit · defectiveCONTROL UNIT DEFECTIVE. UNABLE TO PARALLEL.Feb 5, 1996 · N7128R · Bell 412 · DC Generating SystemSDR HEEA966633Motor Assy · failedMOTOR ARMATURE HAS A DEAD SPOT.Feb 5, 1996 · N3893P · Bell 412 · Entrance StairsSDR HEEA966609Bolt · defectiveBOLT COATING CHIPPING.Feb 5, 1996 · N6559Z · Bell 412 · Main Rotor HeadSDR HEEA966608Bolt · flakingBOLT TUNGSTEN CARBIDE COATING FLAKING. S/N A557 & A60Feb 5, 1996 · N7128R · Bell 412 · Main Rotor HeadSDR HEEA966601Loran · defectiveLORAN FLASHES ADVISORY WARNING LIGHT.Feb 2, 1996 · N2261D · Bell 412 · Long-Range Navigation (LORAN) SystemSDR 96ZZZX1052Seal · separatedREPLACED WITH NEW FIXTURE. DRIVE SHAFT SEAL BOOT SEPARATION (2 EACH).Feb 1, 1996 · N2FOR · Bell 412 · Main Rotor Drive SystemSDR HEEA966583Control · intermittentLED DISPLAY IS INTERMITTENT. REPLACED PHOTOCELL V101. REPAIRED. BENCH CHECK GOOD.Jan 31, 1996 · N2148K · Bell 412 · Visual Omnirange (VOR) SystemSDR HEEA966576Gearbox · making metalCOMBINING GEARBOX MAKING METAL.Jan 31, 1996 · N3893P · Bell 412 · Turbine Engine Reduction GearSDR HEEA966573Indicator · stickingTACH DOES NOT READ RIGHT. ALL NEEDLES STICK EXCESSIVELY. TIME SINCE REPAIR 742:35.Jan 31, 1996 · N7128R · Bell 412 · Engine RPM Indicating SystemSDR HEEA966557Restrain Sys · defectiveSHOULDER STRAPS ABOVE ADJUSTMENT BUCKLE APPROX. 1 1/2 INCH DIFFERENCE.Jan 31, 1996 · Bell 412 · Flight Compartment EquipmentSDR HEEA966555Valve · defectiveVALVE FLUTTERING; CAUSES ENGINE ITT TO FLUCTUATE WITH HEATER TURNED OFF.Jan 31, 1996 · N22608 · Bell 412 · Engine Oil Shutoff ValveSDR HEEA966554Actuator · defectiveROTARY ACTUATOR DEFECTIVE. BINDING IN CONTROLS. TIME SINCE REPAIR 107:05.Jan 31, 1996 · N7128R · Bell 412 · Main Rotor ControlSDR HEEA966553Tarsyn 333 · defectiveADI ROLLS VERTICAL "SPINNING". TIME SINCE REPAIR 590:35.Jan 31, 1996 · N2298Z · Bell 412 · Auto Flight SystemSDR HEEA966552Inverter · inoperativeINVERTER INOPERATIVE. TIME SINCE REPAIR 14:25.Jan 31, 1996 · N2298Z · Bell 412 · AC InverterSDR 96ZZZX1060Indicator · sticksCOCKPIT ATTITUDE INDICATOR STICKS. REPLACED WITH NEW FIXTURE.Jan 31, 1996 · N3292N · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA966546Computer · defectiveWITH BOTH HELIPILOTS ENGAGED, IN A TURN A SLIGHT TAP IS FELT IN THE CYCLIC STICK.Jan 29, 1996 · N3893N · Bell 412 · Autopilot SystemSDR HEEA966536Battery · defectiveBATTERY FAILED CAPACITY TEST.Jan 26, 1996 · N2149S · Bell 412 · Battery/Charger SystemSDR HEEA966533Altimeter · reads highALTIMETER READS 500 FEET HIGH.Jan 26, 1996 · N22608 · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA966531Elt · malfunctionELT UNIT ACTIVATES BY ITSELF IN ARMED POSITION INTERMITTENTLY.Jan 26, 1996 · N2258F · Bell 412 · Emergency Locator BeaconSDR HEEA966529Indicator · sticksTRIPLE TACH NEEDLE STICKS AND EXCESSIVE NEEDLE SPLIT.Jan 26, 1996 · N22608 · Bell 412 · Engine RPM Indicating SystemSDR HEEA966528Ejector Assy · crackedEJECTOR IS CRACKED AND HAS BROKEN RIVETS.Jan 26, 1996 · N22608 · Bell 412 · Engine Collector/Tailpipe/NozzleSDR HEEA966527Governor · defectiveTORQUE SPLIT, TORQUE OSCILLATION. UNIT RECEIVED INSTALLED ON CPGB-1333.Jan 26, 1996 · N22347 · Bell 412 · Turbine Governor
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