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 HEEA071976Transceiver · weakTRANSMITS UNREADABLE. PERFORMED PRELIMINARY INSPECTION AND TESTED. FOUND MODULATION VERY WEAK. ADJUSTED MIC GAIN, TRANSMIT POWER, AND SIDETONE. FOUND MODULATION WOULD BECOME DISTORTED AFTER KEYED UP A FEW TIMES. REPLACED Q109 AND Q110 MODULATORS. REPAIREDApr 5, 2001 · N142PH · Bell 412 · VHF Communications SystemSDR HEEA071975Transceiver · stuckSQUELCH IS STICKING. PERFORMED PRELIMINARY INSPECTION AND TESTED. COULD NOT DUPLICATE PROBLEM. REMOVED CORROSION FROM UNIT. REPLACED BROKEN L505 COIL. ADJUSTED C/N SQUELCH, FREQUENCY, MIC GAIN AND SIDETONE. BENCH CHECK GOOD.Apr 5, 2001 · N107X · Bell 412 · VHF Communications SystemSDR HEEA071968Battery · dischargedVOLTAGE WAS AT 24 VOLTS AND THEN DROPPED TO 20 WITH ONLY THE BATTERY SWITCHES ON. REPLACED WITH SERVICEABLE BATTERY.Apr 5, 2001 · N2149S · Bell 412 · Battery/Charger SystemSDR HEEA071967Gearbox · making metalCOMBINING GEARBOXMAKING METAL NR 1 SIDE.Apr 3, 2001 · N2258F · Bell 412 · Turbine Engine Reduction GearSDR HEEA071951Battery · dischargedLOST ALL POWER AND WOULD NOT CHARGE. REPLACED WITH SERVICEABLE BATTERY.Apr 3, 2001 · N107X · Bell 412 · Battery/Charger SystemSDR HEEA071950Battery · dischargedBATTERY WEAK. REPLACED WITH SERVICEABLE BATTERY.Apr 3, 2001 · N3893L · Bell 412 · Battery/Charger SystemSDR HEEA071949Indicator · malfunctionedWHEN BARO KNOB ON ALTIMETER IS TURNED, NEEDLE MOVES INTERMITTENTLY.Apr 3, 2001 · N142PH · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA071948Indicator · damagedALTIMETER ADJUSTMENT KNOB DOES NOT TURN.Apr 3, 2001 · N2149S · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA071940Light · failedSEARCH LIGHT WILL NOT POINT FORWARD. REPLACED WITH SERVICEABLE PART.Apr 3, 2001 · N3893L · Bell 412 · Exterior LightingSDR HEEA071939Strobe · failedNO OUTPUT. REPLACED WITH SERVICEABLE PART.Apr 3, 2001 · N3893L · Bell 412 · Exterior LightingSDR HEEA071938Link · wornBEARINGS WORN. REPLACED WITH SERVICEABLE PART.Apr 3, 2001 · N3911L · Bell 412 · Tail Rotor Control SystemSDR HEEA071937Link · wornBEARINGS WORN. REPLACED WITH SERVICEABLE PART.Apr 3, 2001 · N2148K · Bell 412 · Tail Rotor Control SystemSDR HEEA071936Link · wornBEARINGS WORN. REPLACED WITH SERVICEABLE PART.Apr 3, 2001 · N3893L · Bell 412 · Tail Rotor Control SystemSDR HEEA071935Link · wornBEARINGS WORN. REPLACED WITH SERVICEABLE PART.Apr 3, 2001 · N2148K · Bell 412 · Tail Rotor Control SystemSDR HEEA071934Pump · failedTRANSFER LIGHT COMING ON ABOVE 1700 LBS. REPLACED WITH SERVICEABLE PART.Apr 3, 2001 · N1202T · Bell 412 · Fuel Boost PumpSDR HEEA071930Amplifier · malfunctionedWHILE IN CRUISE FLIGHT THE BAGGAGE COMPARTMENT FIRE LIGHT ILLUMINATED. NO FIRE OBSERVED. MAINTENANCE REPAIRED CHAFED WIRE AT AMPLIFIER CONTROL CONNECTOR.Apr 3, 2001 · N5759N · Bell 412 · Fire DetectionSDR HEEA071929Signal Cond Unit · intermittentFUEL LOW LEVEL LIGHT COMES ON INTERMITTENTLY.Apr 3, 2001 · Bell 412 · Fuel Indicating SystemSDR AU010155Switch · leaking(AUS) FUEL FILTER BYPASS SWITCH LEAKING FROM SWITCH BODY IN THE AREA WHERE THE ELECTRICAL CONNECTOR IS SOLDERED TO THE SWITCH. FUEL WAS SEEN RUNNING INTO THE ENGINE INTAKE PLENUM. A REPLACEMENT SWITCH HAD POOR SOLDERING OF THE CONNECTOR IN THE SAME AREA ASTHEFeb 19, 2001 · Bell 412 · Engine Fuel DistributionSDR AU010059Bolt · worn(AUS) TAIL ROTOR DRIVESHAFT TO TAIL ROTOR GEARBOX INPUT COUPLING BOLT SEPARATED. MARKS ON BOLT INDICATE THAT IT HAD BEEN LOOSE FOR SOME TIME.Jan 23, 2001 · Bell 412 · Tail Rotor Drive ShaftSDR AU010061Pressure Switch · leaking(AUS) FUEL PRESSURE SWITCH LEAKING FROM SOLDERED JOINT AT BASE OF CONNECTOR PLUG FITTING.Jan 13, 2001 · Bell 412 · Fuel Pressure SensorSDR AU010060Pressure Switch · leaking(AUS) NR 2 ENGINE FUEL PRESSURE SWITCH LEAKING FUEL FROM SOLDERED JOINT AT BASE OF CONNECTOR PLUG CONNECTOR.Jan 13, 2001 · Bell 412 · Fuel Pressure SensorSDR AU001108Hook · mismanufactured(AUS) RESCUE HOIST HOOK ASSEMBLY THREADED ATTACHMENT SPINDLE APPROXIMATELY 0.482 MM (0.019 INCHES) UNDER SPECIFICATION SIZE ALLOWING THE NUT TO HAVE EXCESSIVE MOVEMENT ON THE THREAD. (X)Nov 21, 2000 · Bell 412 · Fuselage, Seat/Cargo Attach FittingsSDR CZMA082761Gimbal Ring · misinstalledGIMBAL RING BECAME LOOSE AT BEARINGS AND BOLTS. BEARINGS AND BOLTS WERE INSTALLED WITHOUT LOCTITE AT LAST OVERHAUL.Oct 31, 2000 · N911BE · Bell 412 · Main Rotor ControlSDR AU000925Bearing · misaligned(AUS) NR 2 ENGINE OIL COOLER BLOWER BEARING WAS MISALIGNED CAUSING THE BLOWER SHAFT TO SHEAR. (X)Oct 1, 2000 · Bell 412 · Rotorcraft Cooling Fan SystemSDR CZMA082760Indicator · failedINDICATOR OPERATED FOR 2.5 HRS. THEN NR 2 ENGINE N2 INDICATION FAILED. UNIT WAS INSTALLED IN PILOTS POSITION. REPLACED UNIT.Sep 22, 2000 · N412BE · Bell 412 · Engine RPM Indicating SystemSDR AU000750Transmission · faulty(AUS) MAIN TRANSMISSION CHIP DETECTOR CONTAMINATED WITH METAL. FOLLOWING INSPECTION AND GROUND RUN, THE CHIP DETECTOR AGAIN ILLUMINATED. (X)Aug 21, 2000 · Bell 412 · Main Rotor GearboxSDR CA000830038Line · damaged(CAN) OIL LINE FROM TRANSMISSION P/N 212-040-237-003 TO OIL COOLER WAS PERFORATED AT ANCHOR POINT TO AIRFRAME STRUCTURE. ACCUMULATION OF DIRT/SAND AND OIL INSIDE THE CLAMP HAD WORN THRU THE LINE.Aug 5, 2000 · Bell 412 · Engine Oil Distribution (Airframe Furnished)SDR CA000830037Cable · failed(CAN) WHILE CARRYING OUT ENGINE RUN-UP TO DETECT SOURCE OF TRANSMISSION OIL LEAK, A FLUCTUATION OF ROTOR RPM WAS NOTICED FOLLOWED BY A TOTAL LOSS OF ROTOR RPM. IT WAS LATER DISCOVERED THAT THE TACH GEN CABLE HAD FRACTURED CAUSING THIS LOSS OF INDICATION OF ROTAug 5, 2000 · Bell 412 · Engine RPM Indicating SystemSDR AU000501Wire · broken(AUS) CABIN DOME LIGHT DIMMER POTENTIOMETER WIRE BROKEN AND SHORT CIRCUITING.Jun 24, 2000 · Bell 412 · Light System WiringSDR 20000714SH031Blower Motor · inoperativeBLOWER MOTOR INOPERATIVE. (X)Jun 1, 2000 · N412SA · Bell 412 · Air Distribution FanSDR 20000619SH007Boot · tornTEAR ON RUBBER PART OF BOOT. NOTE: BOOT MFG DATE JULY 21, 1999. (X)May 2, 2000 · N555BA · Bell 412 · Engine/Transmission CouplingSDR 20000619SH006Boot · tornTEAR ON RUBBER PART OF THE BOOT. NOTE: BOOT MFG DATE DECEMBER 11, 1998. (X)Apr 28, 2000 · N555BA · Bell 412 · Engine/Transmission CouplingSDR 20000619SH005Boot · tornTHIS BOOT WAS REMOVED FROM STOCK AND FOUND THE RUBBER IN BAD CONDITION. HAD SEVERAL PLACES WHERE IT COULD TEAR. NOTE: BOOT MFG DATE JULY 21, 1999. (X)Apr 28, 2000 · Bell 412 · Engine/Transmission CouplingSDR 20000619SH004Boot · looseTHE RUBBER PART OF THE BOOT HAD COME LOOSE FROM THE METAL RING THAT HOLDS THE BOOT. NOTE: BOOT MFG DATE, MARCH 1999. (X)Apr 28, 2000 · N412FH · Bell 412 · Main Rotor Drive SystemSDR AU000124Ring · cracked(AUS) SWASHPLATE OUTER RING CRACKED.Apr 10, 2000 · Bell 412 · Main Rotor Mast/SwashplateSDR 20000510SH019Fitting · crackedDURING ENGINEDECK REPLACEMENT, FOUND FUSELAGE FITTING AT LEFT FORWARD ENGINE MOUNT ATTACHMENT CRACKED. CRACKS EMANATE FROM INISDE REAR BOLT HOLE. POSSIBLE CAUSE IS HOLES NOT PROPERLY DEBURRED. SUBMITTER STATED TO PREVENT RECURRENCE, HOLES SHOULD BE DEBURREMar 2, 2000 · N302FD · Bell 412 · Fuselage, Powerplant Attach FittingsSDR ERAA065954Armature · misrepairedARMATURE REPAIRED 11/5/99. SHAFT IS OUT OF LIMITS.Jan 14, 2000 · N164EH · Bell 412 · Starter-GeneratorSDR 20000510SH017Skin · leakingDURING DAILY INSPECTION, MECHANIC FOUND A CRACK IN THE SKIN JUST BELOW TAIL BOOM ATTACH FITTING ON UPPER LEFT HAND SIDE OF THE AIRFRAME. INSP REVEALED THE MAIN BEAM CAP WAS BROKEN. MAINT REMOVED HELICOPTER FROM SERVICE. REMOVED RT HAND FITTING AND UPPER LDec 21, 1999 · N18LA · Bell 412 · Rotorcraft Tail BoomSDR 20000510SH016Skin · crackedDURING DAILY INSPECTION, MECHANIC FOUND A CRACK IN THE SKIN JUST BELOW TAIL BOOM ATTACH FITTING ON UPPER LEFT HAND SIDE OF THE AIRFRAME. INSP REVEALED THE MAIN BEAM CAP WAS BROKEN. MAINT REMOVED HELICOPTER FROM SERVICE. REMOVED RT HAND FITTING AND UPPER LDec 21, 1999 · N17LA · Bell 412 · Rotorcraft Tail BoomSDR HEEA065465Actuator · malfunctionedAFTER HEATING UP, UNIT WILL STICK INTERMITTENTLY WHEN RELEASED.Dec 17, 1999 · N7128R · Bell 412 · Main Rotor ControlSDR HEEA065464Actuator · malfunctionedWILL NOT RELEASE IN ATT MODE.Dec 17, 1999 · N7128R · Bell 412 · Main Rotor ControlSDR HEEA065374Roller Set · mismanufacturedMISMANUFACTURED. ROLLER NOT STAMPED ON TOP SIDE.Dec 9, 1999 · Bell 412 · Main Rotor GearboxSDR HEEA065300Actuator · slowACTUATOR MOVES VERY SLOW. TIME SINCE REPAIR 117:05 HOURS.Nov 29, 1999 · N22608 · Bell 412 · Entrance StairsSDR HEEA065299Actuator · failedACTUATOR WOULD NOT RETRACT. TIME SINCE REPAIR 158:40 HOURS.Nov 29, 1999 · N7128R · Bell 412 · Entrance StairsSDR HEEA065298Actuator · failedACTUATOR WOULD NOT RETRACT. TIME SINCE REPAIR 357:05 HOURS.Nov 29, 1999 · N2149S · Bell 412 · Entrance StairsSDR HEEA065297Computer · malfunctionedFLIGHT DIRECTOR DECOUPLES WHEN IAS IS SELECTED.Nov 29, 1999 · N800Y · Bell 412 · Autopilot ComputerSDR ERAA065422Bushing · mismanufacturedNEW BUSHINGS COULD NOT BE USED ON AIRCRAFT DUE TO OUTSIDE DIAMETER. OF BUSHINGS TO BEARING. UNABLE TO INSTALL BUSHINGS.Nov 23, 1999 · N177EH · Bell 412 · Main Rotor SystemSDR ERAA065419Float Cover · misrepairedFLOAT COVER REPAIRED. REJECTED UPON RECEIVING DUE TO DIMENSIONS NOT MEETING DRAWINGS.Nov 23, 1999 · N174EH · Bell 412 · Emergency Flotation SectionSDR ERAA065418Float Cover · misrepairedFLOAT COVER REPAIRED AND REJECTED BECAUSE DIMENSIONS DID NOT MEET DRAWINGS.Nov 23, 1999 · N177EH · Bell 412 · Emergency Flotation SectionSDR HEEA065240Indicator · failedHSI INDICATOR TRIPS CIRCUIT BREAKER.Nov 17, 1999 · N3893L · Bell 412 · Attitude and Direction Data System
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