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 HEEA072487Computer · malfunctionedNR 2 HELIPILOT WOULD NOT COME ON.Apr 11, 2001 · N2148K · Bell 412 · Autopilot Trim IndicatorSDR HEEA072484Oil Cooler · leakingLEAKING FROM CENTER CORE AREA.Apr 11, 2001 · N1202T · Bell 412 · Engine Oil CoolerSDR HEEA072477Gps · failedGPS WENT OFF LINE/ON LINE. COULD NOT DUPLICATE PROBLEM. BENCH CHECK GOOD.Apr 11, 2001 · N2149S · Bell 412 · Global Positioning SystemSDR HEEA072476Gps · failedWILL NOT RECEIVE SATELLITES. COULD NOT DUPLICATE PROBLEM. BENCH CHECK GOOD.Apr 11, 2001 · N2149S · Bell 412 · Global Positioning SystemSDR HEEA072442Rotor Head · vibrationTAIL ROTOR PRODUCING A HIGH FREQ VIBRATION. REPLACED WITH SERVICEABLE PART.Apr 10, 2001 · N108X · Bell 412 · Tail Rotor HeadSDR HEEA072473Actuator · inoperativeLT STEP WILL NOT RETRACT.Apr 10, 2001 · N6559Z · Bell 412 · Entrance StairsSDR HEEA072462Actuator · inoperativeLT STEP WILL NOT RETRACT. REPLACED WITH SERVICEABLE PART.Apr 10, 2001 · N6559Z · Bell 412 · Entrance StairsSDR HEEA072461Actuator · inoperativeLT STEP WILL NOT EXTEND. REPLACED WITH SERVICEABLE PART.Apr 10, 2001 · N3893L · Bell 412 · Entrance StairsSDR HEEA072460Actuator · inoperativeLEFT STEP WILL NOT RAISE. REPLACED WITH SERVICEABLE PART.Apr 10, 2001 · N2261D · Bell 412 · Entrance StairsSDR HEEA072459Actuator · inoperativeWILL NOT OPERATE LEFT STEP ACTUATOR. REPLACED WITH SERVICEABLE PART.Apr 10, 2001 · N2149S · Bell 412 · Entrance StairsSDR HEEA072458Crosstube · corrodedCORRODED BEYOND LIMITS UNDER BOTH SADDLE MOUNTS. SCRAPPED AND REPLACED WITH SERVICEABLE TUBE.Apr 10, 2001 · N22347 · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA072457Indicator · inoperativeNR 1 NEEDLE INOPERATIVE.Apr 10, 2001 · N3893L · Bell 412 · Engine RPM Indicating SystemSDR HEEA072456Indicator · reads lowNR 1 ENGINE READING LOW.Apr 10, 2001 · N3893L · Bell 412 · Engine RPM Indicating SystemSDR HEEA072455Indicator · splitHAS A 10 PERCENT SPLIT. ALSO NOTICED WITH JUST THE NR 1 ENGINE RUNNING THE TRANSMISSION NEEDLE FLUCTUATING AND BRINGING THE NR 2 NEEDLE WITH IT.Apr 10, 2001 · N2261D · Bell 412 · Engine BMEP/Torque IndicatingSDR HEEA072454Indicator · inoperativeNR 1 NEEDLE IS INOPERATIVE.Apr 10, 2001 · N2261D · Bell 412 · Engine BMEP/Torque IndicatingSDR HEEA072452Connector · looseCONNECTOR PLUG RECEPTACLE LOOSE IN HOUSING. REPLACED WITH SERVICEABLE PART.Apr 10, 2001 · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA072451Bushing · wornWORN BEARINGS/BUSHINGS. REPLACED WITH SERVICEABLE PART.Apr 10, 2001 · N3893L · Bell 412 · Tail Rotor Control SystemSDR HEEA072450Indicator · stuckSTICKS WHEN ENGINE IS FIRST RUN UP.Apr 10, 2001 · N3911L · Bell 412 · Engine Oil TemperatureSDR HEEA072449Indicator · reads highINDICATES ABOVE RED LINE.Apr 10, 2001 · N3911L · Bell 412 · Engine Oil TemperatureSDR HEEA072448Indicator · reads highINDICATES ABOVE RED LINE.Apr 10, 2001 · N6559Z · Bell 412 · Engine Oil TemperatureSDR HEEA072441Bushing · wornBUSHINGS AND ROD ENDS WORN. REPLACED WITH SERVICEABLE PART.Apr 10, 2001 · N6559Z · Bell 412 · Tail Rotor Control SystemSDR HEEA072422Servo · leakingSERVO CAUSING EXCESSIVE INTERNAL LEAKAGE DURING TESTING.Apr 9, 2001 · Bell 412 · Rotorcraft Servo SystemSDR HEEA072440Skid Shoe · wornSKID SHOE WORN THROUGH. REPLACED WITH SERVICEABLE PART.Apr 9, 2001 · N2261D · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA072439Gcu · failedNR 2 GENERATOR FAILED IN FLIGHT, WOULD NOT RESET.Apr 9, 2001 · N6559Z · Bell 412 · DC RegulatorSDR HEEA072438Indicator · inoperativeNR 1 TACH NEEDLE STOPPED ALL INDICATING.Apr 9, 2001 · N3893N · Bell 412 · Engine RPM Indicating SystemSDR HEEA072437Indicator · stuckN2 NEEDLES STICK WHEN POWER IS CHANGED.Apr 9, 2001 · N7128R · Bell 412 · Engine RPM Indicating SystemSDR HEEA072436Indicator · reads lowINDICATES 2 PERCENT LOW. SENT TO MASCO FOR WARRANTY REPAIR.Apr 9, 2001 · N7128R · Bell 412 · Engine RPM Indicating SystemSDR HEEA072435Indicator · inaccurate13 KNOT DIFFERENCE BETWEEN PILOTS AND COPILOTS INSTRUMENTS.Apr 9, 2001 · N2298Z · Bell 412 · Airspeed/Mach IndicatorSDR HEEA072434Indicator · reads lowNUMBER TWO NEEDLE READS LOW. REPLACED WITH SERVICEABLE PART.Apr 9, 2001 · N2261D · Bell 412 · Engine BMEP/Torque IndicatingSDR HEEA072433Strap · frayedSTRAPS FRAYED. REPLACED RESTRAINTS.Apr 9, 2001 · N6559Z · Bell 412 · Flight Compartment EquipmentSDR HEEA072432Crosstube · damagedUPON REMOVING CENTER PIVOT SADDLE; IT WAS FOUND THAT THERE WAS NO HOT BOND AGENT UNDER PIVOT. REPAIRED.Apr 9, 2001 · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA072431Cover · wornWORN VELCRO.Apr 9, 2001 · N2261D · Bell 412 · Emergency Flotation SectionSDR HEEA072430Cover · tornFLOAT COVER TORN. REPLACED WITH SERVICEABLE COVER.Apr 9, 2001 · N2149S · Bell 412 · Emergency Flotation SectionSDR HEEA072429Cover · tornFLOAT COVER TORN.Apr 9, 2001 · N3893L · Bell 412 · Emergency Flotation SectionSDR HEEA072428Shoe · wornWORN. REPLACED WITH SERVICEABLE PART.Apr 9, 2001 · N3893N · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA072427Shoe · wornWORN. REPLACED WITH SERVICEABLE PART.Apr 9, 2001 · N1202T · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA072426Cap · deterioratedRUBBER ON CAP DETERIORATED.Apr 9, 2001 · N6559Z · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA072425Skid Shoe · tornSHOE TORN AT MOUNT POINTS. REPLACED WITH SERVICEABLE PART.Apr 9, 2001 · N1202T · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA072424Crosstube · damagedAFT CROSSTUBE SPREAD BEYOND LIMITS. REPLACED WITH SERVICEABLE PART.Apr 9, 2001 · N3911L · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA072423Cylinder · bypassingCAUSING EXCESSIVE BYPASS DURING TESTING.Apr 9, 2001 · Bell 412 · Main Rotor ControlSDR HEEA072421Fuel Control · malfunctioned7 PERCENT N1 OSCILLATION, TOO MUCH CUSHION ON THE HIGH SIDE, UNABLE TO ADJUST. RAN UNIT AS RECEIVED ON TEST BENCH. COULD NOT DUPLICATE PROBLEM.Apr 9, 2001 · N3911L · Bell 412 · Fuel Controlling SystemSDR HEEA072420Fuel Control · malfunctioned7 PERCENT TORQUE SURGE AT FLAT PITCH. RAN UNIT AS RECEIVED ON TEST BENCH. COULD NOT DUPLICATE PROBLEM.Apr 9, 2001 · N3911L · Bell 412 · Fuel Controlling SystemSDR HEEA072419Fuel Control · malfunctionedENGINE SLOW TO START. SMOKES ON START CYCLE. RAN UNIT AS RECEIVED ON TEST BENCH. COULD NOT DUPLICATE PROBLEM.Apr 9, 2001 · N3893N · Bell 412 · Fuel Controlling SystemSDR HEEA072418Fuel Control · malfunctionedENGINE SLOW TO START. SMOKES ON START CYCLE. RAN UNIT AS RECEIVED ON TEST BENCH. COULD NOT DUPLICATE PROBLEM.Apr 9, 2001 · N3893N · Bell 412 · Fuel Controlling SystemSDR HEEA072417Bellows · defectiveIDLES AT 45 PERCENT N1 AND WILL NOT ACCELERATE. FOUND ALL FLOWS TO BE VERY LOW AND UNADJUSTABLE. SPLIT UNIT AND FOUND BELLOWS TO BE DEFECTIVE.Apr 9, 2001 · N3893N · Bell 412 · Fuel Controlling SystemSDR HEEA072416Governor · malfunctionedN2 WENT HIGH WITH THROTTLE AT IDLE. FOUND UNIT TO BE SLIGHTLY HANGING. SPLIT UNIT AND FOUND INTERIOR OF UNIT TO BE DIRTY, WITH FLYWEIGHTS STICKING. THIS WAS THE CAUSE OF THE HANGING ON BENCH. CLEANED INTERIOR OF UNIT AND GOVERNOR TESTED OK.Apr 9, 2001 · N3893N · Bell 412 · Turbine GovernorSDR HEEA072415Governor · inoperativeN2 WILL NOT REACH 100 PERCENT. FOUND INTERIOR OF UNIT VERY DIRTY. TEFLON TUBE WAS WORN. REPLACED TEFLON TUBE WITH NEW PART AND CLEANED INTERIOR PARTS.Apr 9, 2001 · N3893N · Bell 412 · Turbine GovernorSDR HEEA072414Handle · damagedHEAT COATING WORN OFF BAGGAGE DOOR HANDLE. HANDLE LOOSE ON IT''S SHAFT. REPLACED WITH SERVICEABLE PART.Apr 9, 2001 · N3911L · Bell 412 · Cargo/Baggage DoorsSDR HEEA072413Gyro · inoperativeTURN NEEDLE IS INOPERATIVE.Apr 9, 2001 · N3893L · Bell 412 · Turn and Bank/Rate of Turn IndicatorSDR HEEA072412Gyro · inoperativeNO RATE OF TURN INDICATION.Apr 9, 2001 · N1202T · Bell 412 · Turn and Bank/Rate of Turn Indicator
Back to Bell 412