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 HEEA956185Transceiver · weakUNIT HAS WEAK POWER OUT. SENT TO THE RADIO SHOP FOR INSPECTION AND REPAIR.Dec 5, 1995 · N22347 · Bell 412 · DME/TACAN SystemSDR HEEA956181Control Display · defectiveDISPLAY DIM IN BRIGHT LIGHT. REPLACED PHOTOCELLV101. REPAIRED. REPLACED INTERMITTENT "IDT" SWITCH S103. BENCH CHECK GOOD.Dec 5, 1995 · N21498 · Bell 412 · ATC Transponder SystemSDR HEEA956176Radar Altimeter · defectiveINTERMITTENTLY WON'T TEST CORRECTLY; JUST CAUSES INDICATOR NEEDLE TO SPIN AROUND.Dec 5, 1995 · N3893P · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA956175Receiver · corrodedFRONT CONNECTOR CORRODED.Dec 5, 1995 · N22347 · Bell 412 · Automatic Direction Finder (ADF) SystemSDR HEEA956169Transponder · inoperativeTRANSPONDER NEEDS BENCH CHECK. UNIT INOPERATIVE. SENT TO THE RADIO SHOP FOR INSPECTION AND REPAIR.Dec 5, 1995 · N2149S · Bell 412 · ATC Transponder SystemSDR HEEA956166Receiver · inoperativeADF INOPERATIVE. SENT TO THE RADIO SHOP FOR INSPECTION AND REPAIR.Dec 5, 1995 · N2261D · Bell 412 · Automatic Direction Finder (ADF) SystemSDR HEEA956150Indicator · reads lowNEEDLES INDICATE 80,000 FEET LOW. TIME SINCE REPAIR 25:45.Nov 28, 1995 · N3893P · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA956148Receiver · weakWEAK RECEPTION. SENT TO THE RADIO SHOP FOR INSPECTION AND REPAIR.Nov 28, 1995 · N2258F · Bell 412 · Automatic Direction Finder (ADF) SystemSDR HEEA956130Altimeter · defectiveALTIMETER FLUCTUATES IN FLIGHT.Nov 22, 1995 · N2149S · Bell 412 · Ground Proximity SystemSDR HEEA956129Loran · defectiveMANY LORAN CDU LED READOUTS INOPERATIVE.Nov 22, 1995 · N2261D · Bell 412 · Long-Range Navigation (LORAN) SystemSDR HEEA956106Display · defectiveREADOUT LIGHTS DIFFICULT TO READ. REPLACED DS901 DISPLAY THAT WAS WEAK. APPLIED HUMISEAL TO PREVIOUSLY DONE HEADER MODIFICATION AND APPLIED DOW CORNING COMPOUND TO DISPLAY CONTACTS. BENCH CHECK GOOD.Nov 21, 1995 · N33008 · Bell 412 · DME/TACAN SystemSDR HEEA956103Indicator · failedUNABLE TO READ DISPLAY.Nov 21, 1995 · N6559Z · Bell 412 · DME/TACAN SystemSDR HEEA956099Transceiver · failedNO R/F OUTPUT.Nov 21, 1995 · N2149S · Bell 412 · Weather Radar SystemSDR HEEA956097Indicator · failedBLANK SCREEN. REPLACED LOW V0LTAGE POWER SUPPLY AND VIDEO BOARD. UNIT HOW HAS INTERMITTENT DISPLAY. REPLACED CONNECTOR P1001. NOTE: REPLACE HEADER J1301.Nov 21, 1995 · N22347 · Bell 412 · Weather Radar SystemSDR HEEA956093Indicator · failedPILOT SMELLED SMOKE, THEN UNIT WENT DEAD.Nov 21, 1995 · N3911L · Bell 412 · Weather Radar SystemSDR HEEA956086Control · defectiveUPPER LIGHT DIGIT SEGMENTS OUT. VERIFIED. REPLACED DEFECTIVE DS101 DISPLAY. REPAIRED PROBLEM.Nov 21, 1995 · N22347 · Bell 412 · VHF Communications SystemSDR HEEA956084Transceiver · defectiveTHIRD DIGIT INOPERATIVE. TWO CENTER WHEEL COUNTERS CRACKED.Nov 21, 1995 · N3893P · Bell 412 · VHF Communications SystemSDR HEEA956083Transceiver · defectiveREQUIRES REFURBISHING AND BENCH CHECK REQUIRED. SENT TO THE RADIO SHOP FOR INSPECTION AND REPAIR.Nov 21, 1995 · N3893N · Bell 412 · VHF Communications SystemSDR HEEA956052Sleeve Assy · plate missingRECEIVED NEW FROM BELL WITHOUT SHIM PLATE INSTALLED.Nov 16, 1995 · Bell 412 · Tail Rotor Drive SystemSDR 95ZZZX7051Coupling · pittedDRIVE COUPLING PITTED. REPLACED WITH NEW COUPLINGS.Nov 15, 1995 · N2FOR · Bell 412 · Engine/Transmission CouplingSDR 95ZZZX7050Coupling · pittedDRIVE COUPLING PITTED. REPLACED WITH NEW COUPLINGS.Nov 15, 1995 · N2FOR · Bell 412 · Engine/Transmission CouplingSDR 95ZZZX7049Relay · inoperativeGENERATOR RELAY INOP. REPLACED WITH NEW RELAY.Nov 15, 1995 · N3292X · Bell 412 · DC Generating SystemSDR 95ZZZX7048Indicator · defectiveCOCKPIT AIR SPEED INDICATOR DEFECTIVE. REPLACED WITH NEW INDICATOR.Nov 15, 1995 · N3292R · Bell 412 · Airspeed/Mach IndicatorSDR 95ZZZX7047Coupling · pittedDRIVE COUPLINGS PITTED. REPLACED WITH NEW COUPLING.Nov 15, 1995 · N3292X · Bell 412 · Engine/Transmission CouplingSDR 95ZZZX7046Coupling · pittedDRIVE COUPLINGS PITTED. REPLACED WITH NEW COUPLING.Nov 15, 1995 · N3292X · Bell 412 · Engine/Transmission CouplingSDR 96ZZZX107Bulkhead · crackedAFTER LOCATING AND DRILLING BULKHEAD, A CRACK AT THE WELD POINT WAS FOUND. (THERE IS NOT SUPPOSED TO BE A SHRINKAGE LINE ON PART.) CRACKED AT FORMING (SHRINKAGE) LINE. THESE PARTS HAVE PILOT HOLES, THEN FORMED AFTER, AS CAN BE SEEN ON PILOT HOLES ON LOWER FNov 14, 1995 · N2071C · Bell 412 · Fuselage Main, BulkheadSDR HEEA955998Receiver · shortedJ6341 FRONT CONNECTOR NEEDS TO BE REPLACED DUE TO SHORT CAUSING BLUE MARKER LIGHT TO STAY LIT AND GLIDESCOPE INTERMITTENTLY INOPERATIVE.Nov 8, 1995 · N7128R · Bell 412 · Visual Omnirange (VOR) SystemSDR HEEA955994Transponder · inoperativeINOPERATIVE. REPLACED SHORTED TRANSISTOR Q104 AND REPAIRED BURNT FOIL ON PC BOARD FOR 28V SUPPLY. REPAIRED PROBLEM AND BENCH CHECKED GOOD.Nov 8, 1995 · N2149S · Bell 412 · ATC Transponder SystemSDR HEEA955977Transceiver · weakRADAR RECEIVER SENSITIVITY WEAK.Nov 8, 1995 · N7128R · Bell 412 · Weather Radar SystemSDR HEEA955972Crosstube · mis mfgINNER BOLT HOLES ON L/H SKID TUBE DOES NOT LINE UP WITH CROSSTUBE NUTPLATES.Nov 7, 1995 · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA955954Indicator · defectiveFUEL QUANTITY READS DIFFERENTLY ON EACH SIDE.Nov 1, 1995 · N2261D · Bell 412 · Fuel Quantity IndicatorSDR HEEA955951Indicator · sticksINDICATOR STICKS IN ROLL AXIS.Nov 1, 1995 · N2258F · Bell 412 · Integrated Flight SystemSDR HEEA955950Indicator · failedINDICATOR #2 NEEDLE HAS NO INDICATION.Nov 1, 1995 · N21498 · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA955949Indicator · defectiveADI VIBRATES AND CHANGES ALTITUDE IN FLIGHT.Nov 1, 1995 · N2148K · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA955948Crosstube · separatingPREBOND SEPARATING FROM CROSSTUBE.Nov 1, 1995 · N23023 · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA955940Crosstube · mis mfgCROSSTUBE MOUNTING HOLES WILL NOT LINE UP WITH SADDLES.Oct 31, 1995 · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA955938Cooler · metal contamOIL COOLER UNIT HAS METAL CONTAMINATION.Oct 31, 1995 · N33008 · Bell 412 · Engine Oil CoolerSDR HEEA955890Engine · faultyHIGH ITT AT POWER CHECK.Oct 13, 1995 · N2261D · Bell 412 · Turbine SectionSDR HEEA955889Yaw Control · defectiveYAW ACTUATOR DEFLECTS LEFT, WILL NOT ENTER.Oct 13, 1995 · N22608 · Bell 412 · Tail Rotor Control SystemSDR HEEA955886Indicator · defectiveREPORTED DIGITAL QUANTITY AND NEEDLE DO NOT COINCIDE.Oct 13, 1995 · N2261D · Bell 412 · Fuel Quantity IndicatorSDR HEEA955885Valve · shortedVALVE SHORTED INTERNALLY.Oct 13, 1995 · N23023 · Bell 412 · Fuel Transfer ValveSDR HEEA955884Engine · faultyHIGH N1, 1% TO 2% HIGH ON POWER CHECK.Oct 13, 1995 · N22347 · Bell 412 · Turbine SectionSDR 95ZZZX7053Generator · erraticTACHOMETER GENERATOR ERRATIC. REPLACED WITH NEW GENERATOR.Oct 11, 1995 · N32929 · Bell 412 · Engine RPM Indicating SystemSDR 95ZZZX7052Bellcrank · misinstalledBELLCRANK IMPROPERLY INSTALLED. REPLACED WTIH NEW BELLCRANK.Oct 11, 1995 · N2FOR · Bell 412 · Rotorcraft Flight ControlSDR HEEA955863Cvr · wont testCVR WILL NOT TEST.Oct 6, 1995 · N7128R · Bell 412 · Audio/Video MonitoringSDR HEEA955850Transceiver · inoperativeTRANSCEIVER 24 MONTH INSPECTION. CLEANED CORROSION. UNIT WOULD NOT RECEIVE. REPLACED INTEGRATED CIRCUIT I1 ON POWER SUPPLY BOARD TO MAKE UNIT RECEIVE. UNABLE TO ALIGN RECEIVER TO MANUFACTURER SPECS. SENT TO ALLIED SIGNAL AVIONICS FOR INSPECTION AND REPAIR.Oct 5, 1995 · N23023 · Bell 412 · DME/TACAN SystemSDR HEEA955849Transponder · defectiveTROUBLESHOOTING C/H GOING OUT. UNIT WOULD NOT RECEIVE. FOUND HEAVY CORROSION AND FOUND INSULATOR BUSHINGS ON Q501 TRANSISTOR AND ON Q104 TRANSISTOR WERE BURNT. REPLACED BUSHINGS, CLEANED CORROSION AND APPLIED ALODINE. ALIGNED RECEIVER AND IF SECTIONS. ALSOOct 5, 1995 · N2149S · Bell 412 · ATC Transponder SystemSDR HEEA955848Transciever · defectiveTRANSCEIVER TRANSMISSIONS SCRATCHY. FOUND MODULATION AND TRANSMIT COMPRESSOR OUT OF SPECS. ADJUSTED TRANSMIT COMPRESSOR AND MODULATION TO SPECS. REPAIRED. ALSO ADJUSTED C/SQUELCH, FREQUENCY, AND SIDETONE TO SPECS. REPLACED HEADER J304 AND APPLIED HUMISEAL Oct 5, 1995 · N22347 · Bell 412 · VHF Communications SystemSDR HEEA955847Transponder · inoperativeTRANSPONDER INOPERATIVE. FOUND PLASTIC INSULATOR BUSHING ON Q501 TRANSISTOR BURNT AND ARCING TO GROUND. REPLACED BUSHING TO REPAIR PROBLEM. ALIGNED RECEIVER AND IF SECTION TO SPECS. UNIT BENCH CHECK GOOD.Oct 5, 1995 · N107X · Bell 412 · ATC Transponder SystemSDR HEEA955837Receiver · inoperativeMARKER BEACON DAMAGED KA35A ASSEMBLY. MARKER BEACON INOPERATIVE AND HAS CONSTANT TONE WITH NO SIGNAL APPLIED.Oct 5, 1995 · N2148K · Bell 412 · Marker Beacon System
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