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 HEEA0013245Indicator · sticksENG N1 NEEDLE HAS STICKY OPERATION THROUGHOUT SCALE.Mar 4, 1998 · N3911L · Bell 412 · Engine RPM Indicating SystemSDR HEEA0013244Actuator Rotary · failedROTARY ACTUATOR INOPERATIVE.Mar 4, 1998 · N22347 · Bell 412 · Main Rotor ControlSDR HEEA0013233Indicator · failedHYD PRESSURE/ TEMP LIGHT IN INOPERATIVE.Mar 4, 1998 · N3911L · Bell 412 · Hydraulic Indicating SystemSDR HEEA0013222Indicator · failedHSI INDICATOR COURSE SET INOPERATIVE.Mar 4, 1998 · N2148K · Bell 412 · Integrated Flight SystemSDR HEEA0013221Hsi · failedHSI HEADING SET INOPERATIVE.Mar 4, 1998 · N6559Z · Bell 412 · Integrated Flight SystemSDR HEEA0013219Indicator · precessesATTITUDE INDICATOR EXCESSIVE PRECESSING IN PITCH AND ROLL.Mar 4, 1998 · N107X · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA0013217Generator · malfunctionTACH GENERATOR INTERMITTENT LIGHT.Mar 4, 1998 · N7128R · Bell 412 · Engine RPM Indicating SystemSDR HEEA0013216Tach Generator · failedTACH GENERATOR INOPERATIVE.Mar 4, 1998 · N21498 · Bell 412 · Engine RPM Indicating SystemSDR HEEA0013213Motor · failedTEMP CONTROL MOTOR INOPERATIVE.Mar 4, 1998 · N3893P · Bell 412 · Cabin Temperature Control SystemSDR HEEA0013203Engine · leakingOIL LEAKING FROM COMPRESSOR AREA AND FORWARD COMBUSTION DRAIN.Mar 4, 1998 · N21498 · Bell 412 · Turbine SectionSDR HEEA0013197Ring Gear · corrodedWORN PILOT DIA'S AND CORROSION ON UPPER AND LOWER FLANGES.Mar 4, 1998 · N108X · Bell 412 · Main Rotor GearboxSDR HEEA0013188Starter Gen · failedSTARTER GENERATOR INOPERATIVE. INSPECTED BY ACCESSORY OVERHAUL SHOP AND FOUND UPPER BEARING FAILED DAMAGING FAN AND POSSIBLY ARMATURE AND STATOR.Mar 4, 1998 · N107X · Bell 412 · Starter-GeneratorSDR HEEA0013178Stator · failedCAUSING STARTER GENERATOR NOT TO COME ON LINE, CAUSES GENERATOR VOLTMETER TO PEG BACKWARDS AND FLASHING FIELD DID NOT HELP.Mar 4, 1998 · N1202T · Bell 412 · Starter-GeneratorSDR HEEA0013177Indicator · failedTRIPLE TACH HAS MOISTURE IN GLASS. ALL NEEDLES HAVE STICKY OPERATION.Mar 4, 1998 · N2261D · Bell 412 · Main Rotor Indicating SystemSDR HEEA0013176Indicator · failedTRIPLE TACH ALL NEEDLES READ APPROXIMATELY 3% HIGH, ALSO HAVE STICKY OPERATION BELOW 20%.Mar 4, 1998 · N33008 · Bell 412 · Main Rotor Indicating SystemSDR HEEA0013174Indicator · failedNR2 NEEDLE STICKS IN STARTUP. NEEDLES NR1 AND NR2 HAVE EXCESSIVE SPLIT. TIME SINCE REPAIR 34:25.Mar 4, 1998 · N1202T · Bell 412 · Main Rotor Indicating SystemSDR HEEA0013138Seal · leakingSEAL LEAKING. REPLACED WITH SERVICEABLE SEAL.Mar 3, 1998 · N33008 · Bell 412 · Main Rotor GearboxSDR HEEA0013137Elevator · mis mfgUNABLE TO INSTALL ELEVATOR DUE TO MOUNTING BOLT HOLE MISALIGNED WITH HORN. INSTALLED SERVICEABLE ELEVATOR.Mar 3, 1998 · N2298Z · Bell 412 · Elevator StructureSDR HEEA0013136Att Indicator · failedPOWER FLAG WON'T PULL - DOESN'T APPEAR TO COME ON. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N3893S · Bell 412 · Integrated Flight SystemSDR HEEA0013131Blade · unbondedM/R BLADE HAS FRETTING PAD UNBONDED ON LOWER LEADING EDGE SURFACE.Mar 3, 1998 · N3893N · Bell 412 · Main Rotor BladesSDR HEEA0013122Blade · crackedBLADE HAS BEEN REPAIRED PREVIOUSLY ON UPPER SURFACE AT STATION 121.25". THERE WAS EVIDENCE OF SKIN CRACK AT THE EDGE OF THE REPAIR.Mar 3, 1998 · N2148K · Bell 412 · Main Rotor BladesSDR HEEA0013117Control · failedDISPLAY STAYS BRIGHT. PERFORMED PRELIMINARY INSPECTION. REPLACED V301 PHOTOCELL. REPAIRED. ALSO INSTALLED P201 HEADER, AND APPLIED HUMISEAL. CHECKED 5V LIGHTING. BENCH CHECK GOOD.Mar 3, 1998 · N7128R · Bell 412 · VHF Communications SystemSDR HEEA0013070Bearing · wornBEARING INNER RACE SHOULDER WORN ON ONE SIDE DUE TO LOST TORQUE OF NUT P/N MS14145L5 WHICH WAS CAUSED BY THE LACK OF THREADS ON THIS NUT OR WASHER P/N AN960-516 NOT CONTACTING THE PITCH HORN FULLY AS NOTED IN ASB 412-98-92. PART ALREADY SENT.Feb 25, 1998 · N3893N · Bell 412 · Main Rotor HeadSDR HEEA0013069Bearing · wornBEARING INNER RACE SHOULDER WORN ON ONE SIDE DUE TO LOST TORQUE OF NUT P/N MS14145L5 WHICH WAS CAUSED BY THE LACK OF THREADS ON THIS NUT OR WASHER P/N AN960-516 NOT CONTACTING THE PITCH HORN FULLY AS NOTED IN ASB 412-98-92. PART ALREADY SENT.Feb 25, 1998 · N3893N · Bell 412 · Main Rotor HeadSDR HEEA0013068Actuator · inoperativeSTEP ACTUATOR INOPERATIVE.Feb 25, 1998 · N3893L · Bell 412 · Entrance StairsSDR AU980231Compressor · damaged(AUS) LT ENGINE COMPRESSOR DAMAGED.Feb 21, 1998 · Bell 412 · Turbine Engine Compressor SectionSDR HEEA0013023Igniter Box · failedAIRCRAFT DIFFICULT TO START. IGNITER BOX FAILEDFeb 11, 1998 · N21498 · Bell 412 · ExciterSDR HEEA0013021Amplifier · failedPA INOPERATIVE. RESOLDERED BROKEN RED POWER WIRE. REPLACED OPEN FUSE. REPAIRED. FUNCTION CHECK GOOD.Feb 11, 1998 · N3893P · Bell 412 · Entertainment SystemSDR HEEA0013015Control · brokenAUTO PILOT SAS/ATT. INDICATOR LIGHT BROKEN.Feb 10, 1998 · N3893S · Bell 412 · Autopilot SystemSDR HEEA0013013Yaw Control · failedYAW CONTROL INOPERATIVE.Feb 10, 1998 · N5759N · Bell 412 · Tail Rotor Control SystemSDR HEEA0013010Control Unit · failedCONTROL UNIT INOPERATIVE. GENERATOR VOLTAGE 31.75 VOLT AND WILL NOT ADJUST.Feb 10, 1998 · N6559Z · Bell 412 · DC Generating SystemSDR HEEA0013004Indicator · malfunctionHSI INDICATOR YELLOW NEEDLE FLUCTUATES FROM L/H TO R/H LORAN MODE.Feb 10, 1998 · N293CA · Bell 412 · Integrated Flight SystemSDR HEEA0013000Ring Gear · corrodedRING GEAR CORROSION ON UPPER AND LOWER FLANGES.Feb 10, 1998 · N33008 · Bell 412 · Main Rotor GearboxSDR HEEA0012999Sensor · damagedDRIVE SHAFT PUSHED INTO HOUSING.Feb 10, 1998 · N3893P · Bell 412 · Heating SystemSDR HEEA0012995Actuator · inoperativeSTEP ACTUATOR INOPERATIVE.Feb 10, 1998 · N3893S · Bell 412 · Entrance StairsSDR HEEA0012994Actuator · inoperativeSTEP ACTUATOR INOPERATIVE.Feb 10, 1998 · N22347 · Bell 412 · Entrance StairsSDR HEEA0012993Actuator · failedSTEP ACTUATOR WON'T MOVE.Feb 10, 1998 · N5759N · Bell 412 · Entrance StairsSDR HEEA0012979Valve · failedHEATER INOPERATIVE. WILL NOT BLOW HOT AIR. MIXING VALVE FAILEDFeb 10, 1998 · N3893N · Bell 412 · Heating SystemSDR HEEA0012974Valve · malfunctionFILTER PRESSURE SWITCH STUCK CLOSED, CAUSING EXT. CLOG BUTTON TO POP RED.Feb 10, 1998 · N7128R · Bell 412 · Hydraulic Pressure Relief Valve, MainSDR HEEA0012969Indicator · defectiveLOOSE OBJECTS INSIDE UNIT.Feb 10, 1998 · N3893S · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA0012966Adapter · defectiveADAPTER REMOVED WITH COMBINING GEARBOX.Feb 10, 1998 · N293CA · Bell 412 · Turbine Engine Reduction GearSDR HEEA0012965Combining Grbox · defectiveCOMBINING GEAR BOX TRANSFERRING OIL.Feb 10, 1998 · N293CA · Bell 412 · Turbine Engine Reduction GearSDR HEEA0012959Indicator · defectiveALTIMETER INDICATOR HAS RATTLING NOISE IN INSTRUMENT.Feb 10, 1998 · N23023 · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA0012958Inverter · failedVOLTMETER PEGS OUT WHEN 450VA INVERTER IS TURNED ON.Feb 10, 1998 · N2261D · Bell 412 · AC InverterSDR HEEA0012957Gyro · failedRATE OF TURN NEEDLE STUCK ON HSI.Feb 10, 1998 · N6559Z · Bell 412 · Integrated Flight SystemSDR HEEA0012956Altimeter · failedRADAR ALTIMETER WILL NOT INDICATE ALTITUDE.Feb 10, 1998 · N3893L · Bell 412 · Ground Proximity SystemSDR HEEA0012950Control Unit · failedNR 1 ENGINE STARTER ENGAGES ON SHUTDOWN.Feb 10, 1998 · N1202T · Bell 412 · Engine Start Valves/ControlsSDR HEEA0012945Tarsyn · seizedTARSYN HSI FROZEN IN PLACE.Feb 10, 1998 · N2014K · Bell 412 · Autopilot SystemSDR HEEA0012935Altimeter · failedENCODER INDICATES HIGH OUT OF TOLERANCE.Feb 10, 1998 · N2261D · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA0012934Indicator · failedFUEL QTY INDICATOR NEEDLE STUCK AT 400 LBS.Feb 10, 1998 · N3893S · Bell 412 · Fuel Quantity Indicator
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