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 HEEA072707Indicator · failedPAINTS FALSE TARGETS AND BAD TEST PATTERN. PERFORMED PRELIMINARY INSPECTION AND ADJUSTED ANC AND INTENSITY. BENCH CHECK GOOD.Apr 19, 2001 · N6559Z · Bell 412 · Weather Radar SystemSDR HEEA072703Compass · lowLOW ON FLUID.Apr 19, 2001 · N3893N · Bell 412 · Magnetic CompassSDR HEEA072702Lead · burnedBURN HOLE IN LEAD.Apr 19, 2001 · N2149S · Bell 412 · Ignition Harness (Distribution)SDR HEEA072699Antenna · damagedBASE IS DAMAGED. BASE IS CRACKED. SCRAPPED AND REPLACED WITH SERVICEABLE PART.Apr 19, 2001 · N3893N · Bell 412 · Ground Proximity SystemSDR HEEA072697Vent · inoperativeHEATER INOPERATIVE. REPLACED WITH SERVICEABLE PART.Apr 19, 2001 · N2261D · Bell 412 · Heating SystemSDR HEEA072689Signal Cond Unit · failedLOW FUEL LIGHT COMES ON AT 1320 LBS.Apr 19, 2001 · N107X · Bell 412 · Fuel Flow SensorSDR HEEA072688Signal Cond Unit · inoperativeLOW FUEL LIGHT COMES ON AT 1320 LBS.Apr 19, 2001 · N107X · Bell 412 · Fuel Flow SensorSDR HEEA072687Signal Cond Unit · inoperativeCAUSES FUEL QUANTITY INDICATOR RO READ ZERO.Apr 19, 2001 · N142PH · Bell 412 · Fuel Flow SensorSDR HEEA072686Signal Cond Unit · failedNR 1 AND 2 TRANSFER PUMPS WOULD NOT SHUT OFF AFTER FORWARD FUEL TANKS EMPTIED.Apr 19, 2001 · N1202T · Bell 412 · Fuel Flow SensorSDR HEEA072684Actuator · stuckSTICKS EXENDED.Apr 19, 2001 · Bell 412 · Entrance StairsSDR HEEA072681Actuator · stuckFORCE TRIM STICKING.Apr 19, 2001 · N1202T · Bell 412 · Main Rotor ControlSDR HEEA072600Light · inoperativeNOT WORKING. SENT TO OFFSHORE HELICOPTER SUPPORT FOR INSPECTION AND REPAIR.Apr 19, 2001 · N3893N · Bell 412 · Exterior LightingSDR HEEA072680Cap · damagedRUBBER EXTRUDED.Apr 18, 2001 · N7128R · Bell 412 · Main Rotor HeadSDR HEEA072679Cap · damagedRUBBER WORN. REPLACED WITH SERVICEABLE PART.Apr 18, 2001 · N3911L · Bell 412 · Main Rotor HeadSDR HEEA072678Cap · damagedRUBBER LORD MOUNT WEAR FROM OIL. REPLACED WITH SERVICEABLE PART.Apr 18, 2001 · N3893N · Bell 412 · Main Rotor HeadSDR HEEA072677Cap · damagedRUBBER IS DAMAGED.Apr 18, 2001 · N2298Z · Bell 412 · Main Rotor HeadSDR HEEA072676Structure · delaminatedENGINE BAY STRUCTURE DELAMINATED.Apr 18, 2001 · N108X · Bell 412 · Fuselage Main, StructureSDR HEEA072675Cam · wornWORN WINDOW. SCRAPPED AND REPLACED WITH SERVICEABLE PART.Apr 18, 2001 · N6559Z · Bell 412 · Flight Compartment WindowsSDR HEEA072674Bearing · frozenBEARING FROZEN. REPLACED WITH SERVICEABLE PART.Apr 18, 2001 · N1202T · Bell 412 · Main Rotor HeadSDR HEEA072673Bearing · damagedBEARING RETAINING RING POPPED OUT OF GROOVE. ALSO BEARING SPINS IN HOUSING. REPLACED WITH SERVICEABLE PART.Apr 18, 2001 · N2148K · Bell 412 · Main Rotor HeadSDR HEEA072672Bellcrank · wornBEARINGS WORN. REPLACED WITH SERVICEABLE PART.Apr 18, 2001 · N3893N · Bell 412 · Main Rotor ControlSDR HEEA072671Computer · malfunctionedWONT HOLD ALTITUDE.Apr 18, 2001 · N108X · Bell 412 · Autopilot ComputerSDR HEEA072667Transmitter · malfunctionedRATCHETING VOLUME KNOB. REPLACED VOLUME POTENTIOMETER. REPAIRED PROBLEM. BENCH CHECK GOOD.Apr 18, 2001 · N6559Z · Bell 412 · UHF Communications SystemSDR HEEA072661Indicator · malfunctionedADI TUMBLES WHEN POWER IS APPLIED.Apr 18, 2001 · N2261D · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA072660Indicator · malfunctionedRT FLAG STICKS TO THE RIGHT.Apr 18, 2001 · N2261D · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA072659Indicator · precessesPRECESSES.Apr 18, 2001 · N2149S · Bell 412 · Integrated Flight SystemSDR HEEA072658Indicator · intermittentCDI OFF FLAG DISPLAYS INTERMITTENTLY. SENT TO MASCO FOR WARRANTY REPAIR.Apr 18, 2001 · N2149S · Bell 412 · Integrated Flight SystemSDR HEEA072657Exciter · weakWEAK.Apr 18, 2001 · N2149S · Bell 412 · ExciterSDR HEEA072647Receiver · failedWILL NOT RECEIVE. PERFORMED PRELIMINARY INSPECTION. REPLACED OPEN FUSE F501. REPAIRED PROBLEM. ADJUSTED LOCALIZER DEVIATION. BENCH CHECK GOOD.Apr 17, 2001 · N3911L · Bell 412 · Glide Slope SystemSDR HEEA072641Indicator · erraticERRATIC IN FLIGHT.Apr 17, 2001 · N2149S · Bell 412 · Ground Proximity SystemSDR HEEA072640Receiver · inoperativeGLIDE SLOPE INOPERATIVE. PERFORMED PRELIMINARY INSPECTION AND FOUND GS NEEDLE PEGS OUT WHEN VIBRATED. REPLACED RECEPTACLES I-5 ON GLIDESLOPE BOARD. REPAIRED. ADJUSTED VOR HEADING. ADJUSTED HI/LOW SENSE ON MARKER BEACON. BENCH CHECK GOOD.Apr 17, 2001 · N142PH · Bell 412 · Localizer/VOR SystemSDR HEEA072639Receiver · inoperativeGLIDE SLOPE INOPERATIVE. PERFORMED PRELIMINARY INSPECTION AND REPLACED TRANSISTOR Q311. REPAIRED. BENCH CHECK GOOD.Apr 17, 2001 · N2148K · Bell 412 · Localizer/VOR SystemSDR HEEA072638Receiver · malfunctionedMARKER BEACON WOULD NOT TEST. PERFORMED PRELIMINARY INSPECTION AND REPLACED FRONT CONNECTOR J6341 BECAUSE OF A BAD PIN. REPAIRED. BENCH CHECK GOOD.Apr 17, 2001 · N7128R · Bell 412 · Localizer/VOR SystemSDR HEEA072621Transceiver · inoperativeINOPERATIVE, WILL NOT COME ON. FOUND FUSE OPEN. REPLACED HEADER AND APPLIED HUMISEAL TO HEADER FOR CORROSION CONTROL. ADJUSTED C/N SQUELCH, MIC GAIN, AND SIDETONE. BENCH CHECK GOOD.Apr 17, 2001 · N2148K · Bell 412 · VHF Communications SystemSDR HEEA072620Transceiver · out of adjTRANSMIT SCRATCHY. FOUND RF CONNECTOR LOOSE ON UNIT. TIGHTENED RF CONNECTOR. ALIGNED TRANSMITTER. REPAIRED. ADJUSTED CARRIER SQUELCH. REMOVED CORROSION FROM CHASIS. BENCH CHECK GOOD.Apr 17, 2001 · N142PH · Bell 412 · VHF Communications SystemSDR HEEA072619Transceiver · failedWILL NOT RECEIVE. REMOVED BROKEN PIN FROM RF CONNECTOR. REMOVED CORROSION FROM CHASIS. ADJUSTED C/N SQUELCH, CARRIER SQUELCH, MIC GAIN AND SIDETONE. BENCH CHECK GOOD.Apr 17, 2001 · N2149S · Bell 412 · VHF Communications SystemSDR HEEA072616Control Unit · malfunctionedDISPLAY BLANKS OUT WHEN CHANGING DIGITS. PERFORMED PRELIMINARY INSPECTION AND REPLACED DISPLAY LENS AND I203, I204, I205 AND I206 IC CHIPS. NO HELP. FOUND J303 FLEX CABLE BAD. REPLACED J303 CABLE, I303 IC CHIP, I306 IC CHIP AND I202 IC CHIP. NO HELP.Apr 17, 2001 · N108X · Bell 412 · ATC Transponder SystemSDR HEEA072604Governor · failedNR 1 ENGINE OSCILLATES DURING POWER TRANSITION AT APPROX. 80 PERCENT TORQUE. FOUND GOVERNOR WAS HANGING. FOUND INTERIOR OF UNIT VERY DIRTY WHICH CAUSED THE FLYWEIGHTS TO STICK. CLEANED FLYWEIGHTS AND REPLACED FLYWEIGHT PINS DUE TO WEAR. UNIT TESTED OK.Apr 16, 2001 · N3893L · Bell 412 · Turbine GovernorSDR HEEA072602Bleed Valve · malfunctionedIN CRUISE FLIGHT OBSERVED A 6 PERCENT TORQUE SPLIT. REPLACED WITH SERVICEABLE PART.Apr 16, 2001 · N3893P · Bell 412 · Compressor Bleed ValveSDR HEEA072601Switch · malfunctionedBOOST PUMP LIGHT WILL NOT GO OUT.Apr 16, 2001 · Bell 412 · Fuel Boost PumpSDR HEEA072581Valve · leakingLEAKING SHAFT SEAL. REPLACED WITH SERVICEABLE PART.Apr 12, 2001 · N7128R · Bell 412 · Aircraft Fuel Distribution SystemSDR HEEA072518Control Unit · contaminatedDROOPING IN FLIGHT, FOUND TURCO IN FITTINGS. CLEANED AND POLISHED SERVO VALVE, LEVERS AND FITTINGS. UNIT TESTED OK.Apr 11, 2001 · N3893N · Bell 412 · Fuel Control/Turbine EnginesSDR HEEA072517Control Unit · malfunctionedTORQUE OSCILLATIONS DURING POWER CHANGES. TESTED UNIT AND COULD NOT DUPLICATE PROBLEM.Apr 11, 2001 · N142PH · Bell 412 · Fuel Control/Turbine EnginesSDR HEEA072516Compensator · fluctuatesITT FLUCTUATES IN FLIGHT AT OR ABOVE 2500 FEET ALTITUDE.Apr 11, 2001 · N6559Z · Bell 412 · Engine EGT/TIT Indicating SystemSDR HEEA072515Lead · frayedFRAYED. REPLACED WITH SERVICEABLE CABLE.Apr 11, 2001 · N1202T · Bell 412 · Ignition Harness (Distribution)SDR HEEA072493Altimeter · malfunctionedTESTS AT 42 INSTEAD OF 50 +/-5.Apr 11, 2001 · N1202T · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA072491Hose · leakingLEAKING THROUGH STEEL BRAIDED SLEEVE. REPLACED WITH SERVICEABLE HOSE.Apr 11, 2001 · N108X · Bell 412 · Hydraulic System, MainSDR HEEA072490Indicator · failedREADS LOW AND DH LIGHT DOES NOT COME ON AT SET ALTITUDE.Apr 11, 2001 · N33008 · Bell 412 · Ground Proximity SystemSDR HEEA072489Indicator · malfunctionedFLAG WILL NOT PULL.Apr 11, 2001 · N108X · Bell 412 · Ground Proximity SystemSDR HEEA072488Control Unit · failedNR 2 HELIPILOT WILL NOT CYCLE AFCS CAUTION LIGHT WITH HELIPILOT ON AND TURNING HELIPILOT NR 2 ON AND OFF.Apr 11, 2001 · N3893L · Bell 412 · Altitude Controller
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