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 HEEA966526Governor · defectiveTROUBLESHOT OSCILLATION 1% N1. GOVERNOR SHAFT ROUGH. UNIT RECEIVED INSTALLED ON CPGB-1333.Jan 26, 1996 · N22347 · Bell 412 · Turbine GovernorSDR HEEA966519Indicator · stickingINDICATOR STICKING AT 50 DEGREES, METER MOVEMENT BROKEN ON TEMP SIDE.Jan 23, 1996 · N2258F · Bell 412 · Main Rotor GearboxSDR HEEA9665077000 Cdu · defectiveCDU HAS LIGHT SEGMENTS OUT.Jan 23, 1996 · N3893P · Bell 412 · Long-Range Navigation (LORAN) SystemSDR HEEA966506Rt Unit · defectiveRADAR R/T HAS BAD MODULATOR; WILL NOT SHOW ANY TARGETS.Jan 23, 1996 · N3893P · Bell 412 · Weather Radar SystemSDR HEEA966504Altimeter · defectiveGIVES INCORRECT ALTITUDE. PERFORMED COMPLETE CALIBRATION AND ALIGNMENT. REPAIRED. REPLACED RESISTORS R518,R519,R534 AND R260 TO INCORPORATE MOD 10. BENCH CHECK GOOD.Jan 23, 1996 · N2149S · Bell 412 · Ground Proximity SystemSDR HEEA966498Bolt · flakingBOLT TUNGSTEN CARBIDE COATING FLAKING OFF. S/N A726 & A750Jan 19, 1996 · N108X · Bell 412 · Main Rotor HeadSDR HEEA966497Bolt · coat flakeBOLT TUNGSTEN CARBIDE COATING FLAKING OFF. S/N A732, A50 AND A716Jan 19, 1996 · N108X · Bell 412 · Main Rotor HeadSDR HEEA966496Bolt · flakingTUNGSTEN CARBIDE COATING FLAKING OFF.Jan 19, 1996 · N108X · Bell 412 · Main Rotor HeadSDR HEEA966495Indicator · defective#2 NEEDLE INTERMITTENTLY STICKS AT 0 AND 38%.Jan 19, 1996 · N3893P · Bell 412 · Engine BMEP/Torque IndicatingSDR HEEA966474Indicator · needle split#1 AND #2 NEEDLES HAVE A 3% SPLIT. SENT TO AIR DALLAS INSTRUMENTS FOR WARRANTY REPAIR. TIME SINCE REPAIR 17:00.Jan 16, 1996 · N22608 · Bell 412 · Engine RPM Indicating SystemSDR HEEA966457Valve · inoperativeVALVE INOPERATIVE.Jan 15, 1996 · N2258F · Bell 412 · Fuel Transfer ValveSDR HEEA966449Gearbox · failedCOMBINING GEAR BOX IS TRANSFERRING OIL TO BOTH ENGINES, 1 QUART OIL PER 4 FLIGH T HOURS.Jan 15, 1996 · N2298Z · Bell 412 · Turbine Engine Reduction GearSDR HEEA966447Altimeter Light · defectiveDH LIGHT INOPERATIVE.Jan 15, 1996 · N3893P · Bell 412 · Ground Proximity SystemSDR CZMA061341Switch · stuckPILOT'S CYCLIC TRIGGER SWITCH STICKING IN THE ICS POSITION. REPLACED DEFECTIVE SWITCH.Jan 12, 1996 · N911BE · Bell 412 · Main Rotor ControlSDR HEEA966408Indicator · inoperativeNR1 ENGINE NEEDLE WILL NOT GO TO ZERO; INOPERATIVE.Jan 10, 1996 · N2261D · Bell 412 · Engine RPM Indicating SystemSDR HEEA966406Actuator Rotary · defectiveROTARY ACTUATOR CAUSED BINDING IN LATERAL MOVEMENT OF CYCLIC.Jan 10, 1996 · N7128R · Bell 412 · Main Rotor ControlSDR HEEA966403Switch · defectiveSWITCH PIN D NOT GROUNDED TO CASE. CAUSES INDICATOR TO FLUCTUATE.Jan 10, 1996 · N22608 · Bell 412 · Fuel Indicating SystemSDR HEEA966401Detector · defectiveCOULD NOT ADJUST RPM LIMIT DETECTOR.Jan 10, 1996 · N3893N · Bell 412 · Rotor Drive Indicating SystemSDR HEEA966390Indicator · flag sticksINDICATOR FLAG STICKS OUT OF VIEW.Jan 9, 1996 · N3911L · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA966372Spindle · unbondedBEARING UNBONDED FROM SPINDLE. SENT TO LORD MANUFACTURING FOR INSPECTION AND REPAIR.Jan 5, 1996 · N2148K · Bell 412 · Main Rotor HeadSDR HEEA966370Indicator · errorPILOT REPORTED NEEDLE HAS 700 FOOT ERRORJan 5, 1996 · N3893P · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA966368Ejector Assy · crackedEJECTOR ASSY EXCESSIVE INTERFERENCE WITH EXHAUST STACK.Jan 5, 1996 · N22608 · Bell 412 · Engine Collector/Tailpipe/NozzleSDR HEEA966354Panel · wrong studSTUD P/N 120-064-3HN WAS INSTALLED IN WRONG POSITION. HAD TO REMOVE IT TO MAKE REPAIR TO STYROFOAM AND INSTALL PROPER STUD P/N 120-142-1. REMOVED PANEL AND MADE HOLE IN STYROFOAM. REMOVED STUD AND INSTALLED SERVICEABLE STUD. REPAIRED HOLE AND REINSTALLED PANJan 4, 1996 · N3893N · Bell 412 · Fuselage Floor PanelSDR HEEA966353Screen Assy · spring failedAIRCRAFT EXPERIENCED 10% TORQUE SPLIT IN FLIGHT WITH TORQUE AT OR ABOVE 90%. UPON CHECK OF SINGLE ENGINE BEEP RANGES NOTED #1 ENGINE FULL INCREASE RPM 2% HIGH. WHEN THROTTLE WAS ROLLED BACK TO IDLE, THE ENGINE WOULD DECEL ONLY TO 74% N1 INSTEAD OF 61%. ALSJan 4, 1996 · N22347 · Bell 412 · Fuel Controlling SystemSDR HEEA966347Bolt · flakingPLATING FLAKING AT EDGE OF BOLT SHANK.Jan 4, 1996 · N2298Z · Bell 412 · Main Rotor HeadSDR HEEA966346Bolt · flakingPLATING FLAKING AT EDGE OF BOLT SHANK.Jan 4, 1996 · N2298Z · Bell 412 · Main Rotor HeadSDR HEEA966345Bolt · flakingPLATING FLAKING AT EDGE OF BOLT SHANK.Jan 4, 1996 · N2298Z · Bell 412 · Main Rotor HeadSDR HEEA966344Cone · frettingFRETTING FABRIC GALLED OUT.Jan 4, 1996 · N2298Z · Bell 412 · Main Rotor HeadSDR HEEA966343Indicator · defectiveALL NEEDLES HAVE EXCESSIVE NEEDLE SPLIT. #1 AND ROTOR NEEDLES STICK.Jan 4, 1996 · N7128R · Bell 412 · Engine RPM Indicating SystemSDR HEEA966340Cvr · inoperativeCVR INTERMITTENTLY INOPERATIVE.Jan 4, 1996 · N7128R · Bell 412 · Audio/Video MonitoringSDR AU960041Arm · cracked(AUS) HOIST ARM CRACKED - SOME CORROSION EVIDENT IN AREA OF CRACKING - ARM IS USED TO ATTACH A LUCAS WESTERN RESCUE WINCH TO THEAIRCRAFTJan 4, 1996 · Bell 412 · Emergency EquipmentSDR HEEA956307Bevel Gear Tooth · failedRECEIVED TRANSMISSION WITH METAL IN OIL. DISASSEMBLED AND FOUND BEVEL GEAR LISTED ABOVE WITH A TOOTH BROKEN OFF. PART IS SCRAPPED CONDITION.Dec 20, 1995 · N2148K · Bell 412 · Main Rotor GearboxSDR HEEA956257Indicator · reads highENCODER READS 120 FEET HIGH AT 20K.Dec 13, 1995 · N2148K · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA956255Actuator Y · defectiveROTARY ACTUATOR DEFECTIVE. FORCE TRIM WONT RELEASE.Dec 13, 1995 · N7128R · Bell 412 · Main Rotor ControlSDR HEEA956244Battery · fail testBATTERY PACK FAILED DISCHARGING TEST. ALSO ONE YEAR INSPECTION DUE.Dec 13, 1995 · N2298Z · Bell 412 · Battery/Charger SystemSDR HEEA956219Fitting · mis mfgBOLT HOLE EAR NOT CUT DOWN.Dec 11, 1995 · N2298Z · Bell 412 · Main Rotor HeadSDR 96ZZZX387Handle · defectiveHANDLE WILL NOT LOCK.Dec 11, 1995 · N2FOR · Bell 412 · Passenger/Crew DoorsSDR HEEA956216Motor · defectiveWHEN MOUNTED IN AIRFRAME WIPER MOTOR VIBRATES. COMING LOOSE FROM CONVERTER.Dec 7, 1995 · N22608 · Bell 412 · Windshield/Door Rain/Ice RemovalSDR HEEA956209Gearbox · making metalCOMBINING GR BOX MAKING METAL.Dec 7, 1995 · N33008 · Bell 412 · Turbine Engine Reduction GearSDR HEEA956205Gearbox · oil leakOIL TRANSFER FROM #1 ENGINE TO GEARBOX.Dec 7, 1995 · N22347 · Bell 412 · Turbine Engine Reduction GearSDR HEEA956202Indicator · defectiveINDICATOR WILL NOT SHUT OFF IN STANDBY.Dec 7, 1995 · N2258F · Bell 412 · Weather Radar SystemSDR HEEA956200Indicator · defectiveDME WON'T LOCK ON TO STATION. PREVENTS KDI573 FROM DISPLAYING ANY DIGITS OR SEGMENTS. TROUBLESHOT AND FOUND IC-803 INTEGRATED CIRCUIT TO BE KILLING SIGNAL. REPLACED IC803. REPAIRED PROBLEM AND UNIT BENCH CHECK GOOD.Dec 7, 1995 · N2149S · Bell 412 · DME/TACAN SystemSDR HEEA956198Comm Control · defectiveDISPLAY DIM IN BRIGHT LIGHT. REPLACED PHOTOCELL V101. REPAIRED. APPLIED HUMISEAL TO HEADER FOR CORROSION CONTROL. REPLACED LENS FOR PHOTOCELL. TOUCHED UP FACEPLATE. BENCH CHECK GOOD.Dec 7, 1995 · N33008 · Bell 412 · VHF Communications SystemSDR HEEA956196Transceiver · defectiveR/T UNIT SHUTS DOWN AFTER TURNED ON.Dec 6, 1995 · N22347 · Bell 412 · Weather Radar SystemSDR HEEA956195Indicator · defectiveDISPLAY FLICKERS IN ALL GREEN SCREEN.Dec 6, 1995 · N2258F · Bell 412 · Weather Radar SystemSDR HEEA956194Display · defectiveSEVERAL SEGMENTS ON DISPLAY DO NOT ILLUMINATE. SENT TO NAVIGATION DATA SYSTEMS FOR INSPECTION AND REPAIR.Dec 6, 1995 · N2261D · Bell 412 · Long-Range Navigation (LORAN) SystemSDR HEEA956193Control · defectiveCONTROL DOES NOT INDICATE SWITCHING FROM BFO, TO ADF, TO ANT.Dec 6, 1995 · N22347 · Bell 412 · Automatic Direction Finder (ADF) SystemSDR HEEA956192Altimeter · defectiveALTIMETER DEFECTIVE. PEGS TO HIGH SIDEDec 6, 1995 · N3893P · Bell 412 · Ground Proximity SystemSDR HEEA956187Cvr · wont testCVR DOESN'T TESTDec 5, 1995 · N33008 · Bell 412 · Audio/Video MonitoringSDR HEEA956186Receiver · defectiveBANDS IN HIGHER FREQUENCY INOPERATIVE. SENT TO THE RADIO SHOP FOR INSPECTION AND REPAIR.Dec 5, 1995 · N22608 · Bell 412 · Automatic Direction Finder (ADF) System
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