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 HEEA0012933Indicator · failedFUEL QTY INDICATOR NEEDLE BROKEN INTERMITTENTLY NO MOVEMENT.Feb 10, 1998 · N3893L · Bell 412 · Fuel Quantity IndicatorSDR HEEA0012932Inverter · failed450VA INVERTER WILL NOT TURN OFF.Feb 10, 1998 · Bell 412 · AC InverterSDR HEEA0012931Indicator · erraticTRIPLE TACH INDICATOR ALL NEEDLES ARE ERRATIC.Feb 10, 1998 · N21498 · Bell 412 · Engine RPM Indicating SystemSDR HEEA0012926Inverter · failed450VA INVERTER LIGHT COMES ON.Feb 10, 1998 · N3911L · Bell 412 · AC InverterSDR HEEA0012924Rate Gyro · failedRATE GYRO FAILED. WON'T PULL OFF FLAG ON HSI.Feb 10, 1998 · N2258F · Bell 412 · Integrated Flight SystemSDR HEEA0012923Reverse Current · malfunctionWON'T PULL OFF FLAG ON HSI.Feb 10, 1998 · N2258F · Bell 412 · DC Power Distribution SystemSDR HEEA0012922Indicator · sticksTRIPLE TACH INDICATOR NEEDLE STICKS.Feb 10, 1998 · N33008 · Bell 412 · Engine RPM Indicating SystemSDR HEEA0012918Indicator · failedFUEL QTY INDICATOR DIGITS NOT TESTING.Feb 10, 1998 · N108X · Bell 412 · Fuel Quantity IndicatorSDR HEEA0012916Battery Pack · failedBATTERY PACK INTERNAL FAILURE.Feb 10, 1998 · N2149S · Bell 412 · Battery/Charger SystemSDR HEEA0012915Battery Pack · failedBATTERY PACK INTERNAL FAILURE.Feb 10, 1998 · N3893L · Bell 412 · Battery/Charger SystemSDR HEEA0012905Actuator · failedSTEP ACTUATOR WON'T COME UP OR DOWN.Feb 10, 1998 · N2258F · Bell 412 · Entrance StairsSDR HEEA0012904Valve · damagedTHREADS MASHED ON OUTPUT SIDE AND LEAKS FROM THREADS.Feb 10, 1998 · N2261D · Bell 412 · Hydraulic System, MainSDR HEEA0012903Actuator · failedSTEP ACTUATOR MOTOR INOPERATIVE; WON'T EXTEND OR RETRACT.Feb 10, 1998 · N2149S · Bell 412 · Entrance StairsSDR HEEA0012902Valve · leaksHYD CHECK VALVE LEAKS.Feb 10, 1998 · N293CA · Bell 412 · Hydraulic System, MainSDR HEEA0012901Valve · leaksHYD CHECK VALVE LEAKS.Feb 10, 1998 · N293CA · Bell 412 · Hydraulic System, MainSDR HEEA0012900Valve · leaksHYD CHECK VALVE LEAKS.Feb 10, 1998 · N293CA · Bell 412 · Hydraulic System, MainSDR HEEA0012899Actuator · failedSTEP ACTUATOR MOTOR WON'T EXTEND OR RETRACT.Feb 10, 1998 · N2258F · Bell 412 · Entrance StairsSDR HEEA0012857Trim Compensator · erraticITT ERRATIC AND FLICKERS.Feb 6, 1998 · N33008 · Bell 412 · Engine EGT/TIT Indicating SystemSDR HEEA0012853Controller · defectiveSERVO CONTROLLER ROTATES PAST STOPS IN BOTH DIRECTIONS.Feb 6, 1998 · N1202T · Bell 412 · Air Distribution SystemSDR 98ZZZX1248Duct Assy · crackedDURING MAJOR REPAIR OF TAIL BOOM, FOUND EXIT DUCT ASSY VERTICAL CRACK APPROXIMATELY 1.25 INCHES LONG ON FORWARD SIDE OF FLANGE. SUSPECT CAUSED BY VIBRATION FROM SEVERE CRACK ALONG EXHAUST EJECTOR 12 INCHES LONG ALONG WELDED BEAD FROM FORWARD TO AFT SIDE OF EJFeb 6, 1998 · N2071S · Bell 412 · Engine Collector/Tailpipe/NozzleSDR 98ZZZX1247Longeron · crackedDISCOVERED ON REMOVAL OF LEFT TAIL BOOM PANEL DURING ROUTINE MAINTENANCE. LONGERON WAS CRACKED IN THREE PLACES. SUSPECT CAUSE INDICATES LACK OF PROPER DEBURRING AT RIVET HOLES IN SEVERAL PLACES. PREPPED COMPLETELY PRIOR TO INSTALLATION.Feb 6, 1998 · N2071S · Bell 412 · Fuselage Main, Longeron/StringerSDR HEEA0012846Encoder · defectiveENCODER INDICATES HIGH OUT OF TOLERANCE.Feb 5, 1998 · N2261D · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA0012842Control · failedAUTOPILOT CONTROL INOPERATIVE. SMELLS BURNT. BROKEN LENS IN FRONT.Feb 5, 1998 · N3893N · Bell 412 · Autopilot SystemSDR HEEA0012829Actuator · inoperativeSTEP ACTUATOR INOPERATIVE.Feb 5, 1998 · N22347 · Bell 412 · Entrance StairsSDR HEEA0012828Actuator Rotary · sticksROTARY ACTUATOR FORCE TRIM STICKS.Feb 5, 1998 · N107X · Bell 412 · Main Rotor ControlSDR HEEA0012827Actuator · inoperativeSTEP ACTUATOR INOPERATIVE.Feb 5, 1998 · N293CA · Bell 412 · Entrance StairsSDR HEEA0012820Tarsyn · defectiveTARSYS KICKS IN PITCH.Feb 5, 1998 · N3893S · Bell 412 · Autopilot SystemSDR HEEA0012815Actuator · failedSTEP ACTUATOR INOPERATIVE.Feb 5, 1998 · N22347 · Bell 412 · Entrance StairsSDR HEEA0012814Actuator · failedSTEP ACTUATOR INOPERATIVE.Feb 5, 1998 · N22347 · Bell 412 · Entrance StairsSDR HEEA0012812Computer · malfunctionCOMPUTER KICKING IN FLIGHT.Feb 5, 1998 · N3893P · Bell 412 · Autopilot ComputerSDR HEEA0012800Receiver · failedVOR INOPERATIVE.Feb 5, 1998 · N21498 · Bell 412 · Visual Omnirange (VOR) SystemSDR HEEA0012798Inverter · failedINVERTER WILL NOT COME ON LINE.Feb 5, 1998 · N1202T · Bell 412 · AC InverterSDR HEEA0012796Window · mis mfgWINDOW DOES NOT FIT CONTOUR OF AIRCRAFT. WONT LOCATE WINDOW PROPERLY (DIFFERENCE IS TOO MUCH TO ALLOW) NOTE: TOP FORWARD CORNER IS THE PROBLEM AREA.Feb 5, 1998 · Bell 412 · Flight Compartment WindowsSDR HEEA0012795Spindle · separatedBEARING SEPARATED FROM SPINDLE.Feb 5, 1998 · N293CA · Bell 412 · Main Rotor HeadSDR HEEA0012784Cartridge · leakingFOUND PLUG ON OUTSIDE END OF CARTRIDGE TO BE LEAKING FUEL. FOUND ADAPTER THAT HOLDS PLUG HAS EXCESSIVE PLAY.Feb 5, 1998 · N3893P · Bell 412 · Engine Fuel DistributionSDR HEEA0012779Blade · damagedPIECE OF INBOARD ABRASION STRIP MISSING ON THE TOP OUTBOARD END OF M.R BLADE.Feb 5, 1998 · N3893S · Bell 412 · Main Rotor BladesSDR HEEA0012778Blade · errodedM/R BLADE OUTBOARD LEADING EDGE STRIP WITH EROSION HOLES THROUGH THE STRIP.Feb 5, 1998 · N2298Z · Bell 412 · Main Rotor BladesSDR HEEA0012777Blade · damagedHOLES IN THE M/R BLADE OUTBOARD LEADING EDGE ABRASION STRIP.Feb 5, 1998 · N2298Z · Bell 412 · Main Rotor BladesSDR HEEA0012776Cvr · failedTEST LIGHT REMAINS ON ALL THE TIME. TIME SINCE REPAIR 0:00.Feb 5, 1998 · N2261D · Bell 412 · Audio/Video MonitoringSDR HEEA0012770Transceiver · failedTRANSCEIVER WILL NOT TRANSMIT. FOUND UNIT NOT RECEIVING. FOUND V20 NOT WORKING. REPLACED Q209, Q208, Q203, Q204, AND Q221 TRANSISTORS, CR209 DIODE, I216 AND I217 J.C. STILL NO TRANSMIT OR RECEIVE.Feb 5, 1998 · N5759N · Bell 412 · VHF Communications SystemSDR HEEA0012763Bearing · corrodedBEARINGS CORRODED. BEARING CAGE RUBBING AND TIGHTING UP ON INNER RACE. REPLACED WITH SERVICEABLE BEARING SET.Feb 5, 1998 · N2149S · Bell 412 · Main Rotor GearboxSDR HEEA0012748Actuator · inoperativeSTEP ACTUATOR INOPERATIVE.Jan 30, 1998 · N3893S · Bell 412 · Entrance StairsSDR HEEA0012747Actuator · failedSTEP ACTUATOR INOPERATIVE.Jan 30, 1998 · N22347 · Bell 412 · Entrance StairsSDR HEEA0012746Actuator · failedSTEP ACTUATOR WON'T EXTEND OR RETRACT.Jan 30, 1998 · N3893S · Bell 412 · Entrance StairsSDR 98ZZZX735Flange · mismanufacturedRECEIVED A REPLACEMENT PART FROM BELL HELICOPTER FOR THE ROTOR BRAKE QUILL. THE REPLACEMENT FLANGE, PN 209-040-177-101, DID NOT HAVE THE SAME APPEARANCE IN THE SEAL CONTACT AREA AS THE REMOVED, IDENTICAL PART NUMBER ITEM. THE 'NEW' FLANGE APPEARS TO HAVE BEEJan 30, 1998 · N411DE · Bell 412 · Main Rotor BrakeSDR HEEA0012744Rib · damagedTAIL BOOM FIN RIB HAS SANDING MARKS BEYOND 10 PERCENT OF METAL.Jan 29, 1998 · N22608 · Bell 412 · Vertical StabilizerSDR 98ZZZX1261Engine · failedON FINAL APPROACH TO HOSPITAL ROOF TOP HELIPORT, RPM WARNING HORN ACTIVATED FOLLOWED BY 15 TO 20 SECONDS OF POPPING AND GRINDING NOISES FROM NR 1 ENGINE. AFTER GAINING AIRSPEED, ENGINE WAS SECURED AND AN OEI LANDING WAS MADE AT BURBANK AIRPORT. SUBSTANTIAL DJan 28, 1998 · N18LA · Bell 412 · Engine (Turbine/Turboprop)SDR HEEA0012738Bearing Rod End · wornROD END HAS TOO MUCH PLAY ON NEW BEARING.Jan 27, 1998 · Bell 412 · Engine Mount SectionSDR HEEA0012734Dme · malfunctionDME LIGHT DIM. REPLACED WEAK V901 PHOTODETECTOR. INSPECTED AND BENCH CHECK GOOD.Jan 27, 1998 · N6559Z · Bell 412 · DME/TACAN SystemSDR HEEA0012730Receiver · failedADF NOISY AND CUTS OUT INTERMITTENTLY. ALSO HAS WEAK SIGNAL STRENGTH.Jan 27, 1998 · N3893N · Bell 412 · Automatic Direction Finder (ADF) System
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