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 HEEA955433Indicator · malfunction#1 AND #2 NEEDLES HAVE A 3% SPLIT AND ALL NEEDLES INTERMITTENTLY STICK. ALSO UNIT HAS LOOSE PARTS INSIDE.Jul 24, 1995 · N2148K · Bell 412 · Engine RPM Indicating SystemSDR HEEA955423Valve · inoperativeVALVE INOPERATIVE.Jul 24, 1995 · N33008 · Bell 412 · Fuel Transfer ValveSDR HEEA955399Indicator · defective#1 NEEDLE WILL NOT MOVE.Jul 20, 1995 · N33008 · Bell 412 · Integrated Flight SystemSDR HEEA955386Cvr · inoperativeCVR INOPERATIVE.Jul 20, 1995 · N3911L · Bell 412 · Audio/Video MonitoringSDR HEEA955377Accumulator · leakingLEAKING FROM WEEP HOLE. REPLACED WITH SERVICEABLE ACCUMULATOR.Jul 20, 1995 · N2014K · Bell 412 · Hydraulic Power Accumulator, MainSDR HEEA955368Cvr · inoperativeCVR INOPERATIVE.Jul 20, 1995 · N33008 · Bell 412 · Audio/Video MonitoringSDR HEEA955361Indicator · sticksNEEDLE INTERMITTENTLY STICKS THROUGHOUT SCALE. TIME SINCE REPAIR 2:35.Jul 13, 1995 · N2149S · Bell 412 · Engine EGT/TIT Indicating SystemSDR HEEA955359Indicator · sticks#1 NEEDLE INTERMITTENTLY STICKS BETWEEN 50-60%. TIME SINCE REPAIR 143:10.Jul 13, 1995 · N2148K · Bell 412 · Engine RPM Indicating SystemSDR HEEA955341Indicator · defectiveTRIPLE TACH HAS 2% SPLIT BETWEEN NEEDLES.Jul 11, 1995 · N7128R · Bell 412 · Engine RPM Indicating SystemSDR 95ZZZX4098Firewall · corrodedDURING REPLACEMENT OF ENGINE DECK/WORK DECK, FOUND SEAL RETAINERS CORRODED. ALUMINUM RETAINERS RIVETED TO STAINLESS STEEL PARTS.Jul 6, 1995 · N397AL · Bell 412 · Nacelle/Pylon, Bulkhead/FirewallSDR 95ZZZX4097Firewall · corrodedDURING REPLACEMENT OF WORK DECK/ENGINE DECK, FOUND SEAL RETAINERS CORRODED. ALUMINUM RETAINERS ON STAINLESS STEEL PARTS.Jul 6, 1995 · N397AL · Bell 412 · Nacelle/Pylon, Bulkhead/FirewallSDR 95ZZZX4096Firewall · corrodedDURING REPLACEMENT OF ENGINE SERVICE DECK, FOUND THE STRAPS ON UPPER FIREWALL WHERE THE AIR MANAGEMENT SYSTEM BOLTS ON, HAD SEVERE CORROSION. CAUSED BY ALUMINUM BEING SANDWICHED BETWEEN STAINLESS STEEL. SUSPECT CAUSED DISSIMILAR METAL CORROSION.Jul 6, 1995 · N397AL · Bell 412 · Nacelle/Pylon, Bulkhead/FirewallSDR 95ZZZX4095Work Deck · separationDAILY INSPECTION FOUND WORK DECK PANELS TOP SKIN SEPARATED OVER A LARGE AREA. ALSO, UNDERSIDE OF PANEL IS SWELLED. SUSPECT CAUSED BY PROLONGED EXPOSURE TO HIGH TEMPERATURES.Jul 6, 1995 · N397AL · Bell 412 · Fuselage Miscellaneous StructureSDR HEEA955319Indicator · erraticNEEDLE ERRATIC ON LOW END.Jul 5, 1995 · N2148K · Bell 412 · Engine RPM Indicating SystemSDR HEEA955318Altimeter · errorENCODER IS 100 FEET OFF AT 10,000 FEET. SENT TO ALLIED SIGNAL AVIONICS FOR WARRANTY REPAIR. TIME SINCE REPAIR 213:15.Jul 5, 1995 · N33008 · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA955315Cvr · wont testCVR WILL NOT TEST.Jul 5, 1995 · N2014K · Bell 412 · Audio/Video MonitoringSDR HEEA955314Cvr · wont testCVR WILL NOT TEST.Jul 5, 1995 · N21498 · Bell 412 · Audio/Video MonitoringSDR HEEA955313Cvr · wont testCVR WILL NOT TEST; RATTLE INSIDE. TIME SINCE REPAIR 0:00.Jul 5, 1995 · N2014K · Bell 412 · Audio/Video MonitoringSDR HEEA955311Transceiver · defectiveTRANSCEIVER WILL NOT TUNE.Jul 5, 1995 · N3893S · Bell 412 · VHF Communications SystemSDR HEEA955305Hinge Assy · crackedMODIFIED BAGGAGE DOOR UPPER HINGE CRACKED BETWEEN RIVET THAT KEEPS ABRASION BUMPER IN PLACE. REMOVED AND REPLACED HINGE.Jul 5, 1995 · N23023 · Bell 412 · Cargo/Baggage DoorsSDR HEEA955284Altimeter · defectiveKOLSMAN KNOB WILL NOT ADJUST BAROMETRIC PRESSURE.Jun 29, 1995 · N22347 · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA955269Transceiver · erraticTRANSCEIVER INTERMITTENTLY ERRATIC.Jun 27, 1995 · N2347 · Bell 412 · Ground Proximity SystemSDR HEEA955264Limit Detector · erraticAUDIO ERRATIC.Jun 27, 1995 · N21498 · Bell 412 · Rotor Drive Indicating SystemSDR HEEA955244Actuator Rotary · brake hangsBRAKE WILL NOT RELEASE WHEN AFCS ROLL IS ACTUATED.Jun 27, 1995 · N2149S · Bell 412 · Main Rotor ControlSDR HEEA955242Motor Assy · inoperativeACTUATOR IS INOPERATIVE. INSPECTED BY ACCESSORY OVERHAUL SHOP AND FOUND MOTOR HAS INTERMITTENT OPERATION. ARMATURE SEEMS TO HAVE A DEAD SPOT ON COMMUTATOR.Jun 27, 1995 · N33008 · Bell 412 · Entrance StairsSDR HEEA955239Ejector · crackedRT EJECTOR CRACKED.Jun 26, 1995 · N2149S · Bell 412 · Engine Collector/Tailpipe/NozzleSDR HEEA955238Ejector · crackedEJECTOR CRACKED AT MOUNT POINT.Jun 26, 1995 · N2298Z · Bell 412 · Engine Collector/Tailpipe/NozzleSDR HEEA955236Limit Detector · defectiveRPM LIGHT AND AUDIO COMES ON INTERMITTENTLY.Jun 26, 1995 · N21498 · Bell 412 · Rotor Drive Indicating SystemSDR HEEA955235Altimeter · case leakEXCESSIVE CASE LEAK. TIME SINCE REPAIR 345:55.Jun 26, 1995 · N2149S · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA955225Transceiver · defectiveSQUELCH INOPERATIVE. STAYS ON. ALIGNED UNIT SEVERAL TIMES. REPLACED TRANSISTOR Q318. REPLACED RECEIVER BOARD. REPAIRED PROBLEM. ADJUSTED SQUELCH AND MODULATION. BENCH CHECK GOOD.Jun 26, 1995 · N7128R · Bell 412 · VHF Communications SystemSDR HEEA955203Indicator · defectiveNEEDLE WILL NOT RETURN TO ZERO ALSO INTERMITTENTLY STICKS.Jun 15, 1995 · N2261D · Bell 412 · Rate of Climb IndicatorSDR HEEA955200Cvr · wont testCVR WILL NOT TEST PROPERLY.Jun 15, 1995 · N6559Z · Bell 412 · Audio/Video MonitoringSDR HEEA955198Altimeter · defectiveRADAR ALTIMETER SPINS INTERMITTENTLY.Jun 15, 1995 · N2148K · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA955197Motor Assy · inopMOTOR INOPERATIVE. INSPECTED BY ACCESSORY SHOP AND FOUND MOTOR ARMATURE HAS A DEAD SPOT AND INTERMITTENT OPERATION.Jun 15, 1995 · N2298Z · Bell 412 · Entrance StairsSDR HEEA955193Altimeter · defectiveDH LIGHT REVERSED. WHEN NEEDLE IS ABOVE BUG. LIGHT IS ON. FOUND DH LIGHT TO BE TOO DIM. REPLACED V101 PHOTOCELL. REPAIRED.Jun 15, 1995 · N2148K · Bell 412 · Ground Proximity SystemSDR EGRA95111Valve · leakingVALVE FOUND TO BE LEAKING REPLACED VALVEJun 15, 1995 · N412PP · Bell 412 · Hydraulic System, MainSDR HEEA955175Ejector Assy · defectiveRIVETS MISSING FROM SEAMS, EJECTOR SUPPORT CRACKED IN WELD AREA. INNER PORTION OF EJECTOR SOCKLED. SENT TO ALPINE AEROTECH LTD. FOR INSPECTION AND REPAIR.Jun 13, 1995 · N2149S · Bell 412 · Engine Collector/Tailpipe/NozzleSDR HEEA955174Transceiver · failed testFAILED OUTPUT TEST 5.2 ON SST.Jun 13, 1995 · N22608 · Bell 412 · Ground Proximity SystemSDR HEEA955170Servo · defectiveCYCLIC HARD TO MOVE TO RH POSITION.Jun 13, 1995 · N2148K · Bell 412 · Main Rotor ControlSDR HEEA955152Seal · leakingON POST-FLIGHT INSPECTION, FOUND EXCESSIVE OIL LEAKING FROM NR 2 ENGINE EJECTOR ACCESSORY GEARBOX VENT FITTING. REMOVED HOSE AT NR 2 ENGINE ACCESSORY GEARBOX VENT AND VERIFIED LEAK AT VENT. SCRAPPED SEAL AND REPLACED WITH SERVICEABLE SEAL.Jun 13, 1995 · N2298Z · Bell 412 · Turbine Engine Accessory DriveSDR HEEA955149Control Unit · defectiveFUNCTION SWITCH HAS NO STOPS. REPLACED BROKEN SWITCH CONTACT ASSY DUE TO STOPS BROKEN OFF. ALSO REPLACED DEFECTIVE TRANSFER SWITCH S103 AND I306 INTERGRATED CIRCUIT DUE TO STB AND ALT WOULD NOT LIGHT ON DISPLAY. REPAIRED.Jun 13, 1995 · N21498 · Bell 412 · ATC Transponder SystemSDR 95ZZZX3360Bearing · roughON DISASSEMBLY FOR REPAIR OF SUSPECTED ROUGH BEARING, INSPECTED TAIL ROTOR HANGER ASSEMBLY AND FOUND BEARING ROUGH. BEARING IS UNSERVICEABLE.Jun 7, 1995 · N398AL · Bell 412 · Tail Rotor Drive ShaftSDR HEEA955086Indicator · defectiveCOURSE SET 3 DEGREES OFF. TIME SINCE REPAIR 203:30.May 25, 1995 · N3911L · Bell 412 · Integrated Flight SystemSDR HEEA955085Cvr · wont testCVR DOES NOT TEST. NO LIGHTS - NO TONE.May 25, 1995 · N7128R · Bell 412 · Audio/Video MonitoringSDR HEEA955084Cvr · wont testCVR INOPERATIVE. WILL NOT TEST. TIME SINCE REPAIR 337:45.May 25, 1995 · N2148K · Bell 412 · Audio/Video MonitoringSDR 95ZZZX3338Main Servo · leakingPILOT REPORTED DROP IN NR 1 HYDRAULIC SYSTEM OIL PRESSURE. LANDED AT OFFSHORE HELIPORT WITHOUT INCIDENT. FOUND RT CYCLIC SERVO LEAKING FLUID OUT OF TOP OF SERVO BETWEEN CAP AND PISTON. 412 IPC, FIGURE 67-2, ITEM 41.May 25, 1995 · N3911L · Bell 412 · Rotorcraft Servo SystemSDR HEEA955065Bearing · defectiveREMOVED FROM SERVICE DUE TO BEARING S/N AS PER ASB 412-95-84 --- ASB 212-95-95.May 23, 1995 · Bell 412 · Tail Rotor Drive ShaftSDR HEEA955064Bearing · defectiveREMOVED FROM SERVICE DUE TO BEARING S/N AS PER ASB 412-95-84 --- ASB 212-95-95.May 23, 1995 · Bell 412 · Tail Rotor Drive ShaftSDR HEEA955063Bearing · defectiveREMOVED FROM SERVICE DUE TO BEARING S/N AS PER ASB 412-95-84 --- ASB 212-95-95.May 23, 1995 · Bell 412 · Tail Rotor Drive ShaftSDR HEEA955062Bearing · defectiveOUTER RADIUS OF BEARING GREATER THAN SHOULD BE. GREASE WILL ENTER BEARING BUT WILL NOT LET IT PURGE OUT. GREASE WILL PURGE OUT AROUND BEARING AND HOUSING.May 23, 1995 · N7128R · Bell 412 · Tail Rotor Drive Shaft
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