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 HEEA968551Indicator · needle looseNEEDLE IS LOOSE ON SHAFT. THIS UNIT WAS REPAIRED ON 8-1-96.Nov 22, 1996 · N107X · Bell 412 · Engine RPM Indicating SystemSDR HEEA968550Switch · stickingENTER SWITCH STICKING.Nov 22, 1996 · N108X · Bell 412 · Long-Range Navigation (LORAN) SystemSDR HEEA968535Bearing · wornSHOULDER ON ONE SIDE OF BEARING WORN EXCESSIVELY. REPLACED ROD END (AND PITCH HORN BUSHING).Nov 21, 1996 · N7128R · Bell 412 · Main Rotor HeadSDR HEEA968534Bearing · wornSHOULDER ON ONE SIDE OF BEARING WORN EXCESSIVELY. REPLACED ROD END (AND PITCH HORN BUSHING).Nov 21, 1996 · N107X · Bell 412 · Main Rotor HeadSDR HEEA9685277000 Rcu · fail self test7000 RCU WILL NOT GO THROUGH SELF TEST. SHOWS OSCILLATOR ERROR.Nov 21, 1996 · N22608 · Bell 412 · Long-Range Navigation (LORAN) SystemSDR HEEA968523Blade · crackedBLADE IS CRACKED. (CRACK IN THE UPPER SKIN AT STATION 83.5" RUNNING IN A 45 DEGREE DIRECTION.Nov 21, 1996 · N22608 · Bell 412 · Main Rotor BladesSDR HEEA968522Motor Assy · inoperativeINOPERATIVE. THIS UNIT WAS DISASSEMBLED AND INSPECTED BY THE ACCESSORY SHOP. A BURNT SPOT ON THE ARMATURE WAS FOUND TO BE THE PROBLEM. S/N 2237 WAS REPAIRED BY BARBER COLMAN ON 4-24-96 UNDER NO. MGR 90342. INSTALLED IN ACTUATOR S/N 1018 ON 8-7-96.Nov 21, 1996 · N108X · Bell 412 · Entrance StairsSDR HEEA968508Receiver · intermittentRECEIVER INTERMITTENT. PERFORMED PRELIMINARY INSPECTION. FOUND EXCESSIVE CORROSION ON CONN. J8061, REPLACED CONN. J8061. ONE EACH SPACER AND ONE EACH PLATE. ALSO REPLACED MISSING SCREW. REPAIRED, TESTED, ADJUSTED POT. R374 AND CLEANED HEADERS. BENCH CHECKNov 21, 1996 · N21498 · Bell 412 · Automatic Direction Finder (ADF) SystemSDR HEEA968502Antenna · defectiveTROUBLESHOOTING LORAN ADVISORY LIGHT STAYING ON.Nov 21, 1996 · N22608 · Bell 412 · Long-Range Navigation (LORAN) SystemSDR HEEA968500Motor Assy · failedSTEP WILL NOT RAISE OR LOWER. THIS UNIT WAS DISASSEMBLED AND INSPECTED BY THE ACCESSORY SHOP. A BURNT SPOT ON THE ARMATURE WAS FOUND TO BE THE PROBLEM. MOTOR AS REPAIRED ON 7-31-96 UNDER NO. MGR. 91072. INSTALLED IN ACTUATOR S/N 003 ON 8-7-96.Nov 21, 1996 · N3893P · Bell 412 · Entrance StairsSDR HEEA968497Panel · mis mfgPANEL DOES NOT FIT AIRFRAME DUE TO HAVING THE WRONG CONTOUR. IT SHOULD HAVE A CONVEX CURVE SHAPE WHEN LOOKING FROM TOP VIEW.Nov 20, 1996 · N3911L · Bell 412 · Fuselage Miscellaneous StructureSDR HEEA968496Panel · separationLOWER SIDE OF PANEL HAS SEPARATED COVERS FOR TIE DOWN RING AND SEPARATION ON SLANTED PROTECTIVE COVER OF PANEL.Nov 20, 1996 · N3911L · Bell 412 · Fuselage Floor PanelSDR HEEA968484Bearing · wornBEARING WORN BEYOND LIMITS PER MANUFACTURER. PARTS SCRAPPED LOCALLY.Nov 18, 1996 · N911FD · Bell 412 · Main Rotor HeadSDR HEEA968483Bearing · wornBEARING WORN BEYOND LIMITS PER MANUFACTURER. PARTS SCRAPPED LOCALLY.Nov 18, 1996 · N911FD · Bell 412 · Main Rotor HeadSDR HEEA968482Bearing · wornBEARING WORN BEYOND LIMITS PER MANUFACTURER. PARTS SCRAPPED LOCALLY.Nov 18, 1996 · N911AR · Bell 412 · Main Rotor HeadSDR HEEA968481Bearing · wornBEARING WORN BEYOND LIMITS PER MANUFACTURER. PARTS SCRAPPED LOCALLY.Nov 18, 1996 · N911AR · Bell 412 · Main Rotor HeadSDR HEEA968448Control · defectiveATT. LIGHT INOPERATIVE ONLY WHEN #2 HP IS ENGAGED. TIME SINCE REPAIR 701:20.Nov 6, 1996 · N22347 · Bell 412 · Autopilot SystemSDR HEEA968447Receiver · defectiveSTATIC ON LOW WATT STATIONS AND RECEIVER SCRATCHY.Nov 6, 1996 · N3893P · Bell 412 · Automatic Direction Finder (ADF) SystemSDR HEEA968438Crosstube · corrodedCROSSTUBE FRETTING CORROSION UNDER MOUNT PADS WHERE NO DAMAGE IS ALLOWED. SCRIBE MARKS AROUND MOUNT PADS.Nov 6, 1996 · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA968431Receiver · inopVOR/LOC RECEIVER INOPERATIVE.Nov 4, 1996 · N3893S · Bell 412 · Visual Omnirange (VOR) SystemSDR HEEA968430Receiver · defectiveADF NEEDLE POINTS 30 DEGREES OR MORE OFF FROM WHERE IT SHOULD.Nov 4, 1996 · N3911L · Bell 412 · Automatic Direction Finder (ADF) SystemSDR HEEA968426Receiver · inoperativeRECEIVER INOPERATIVE. UNIT DRAWS EXCESSIVE CURRENT.Nov 4, 1996 · N3893N · Bell 412 · Visual Omnirange (VOR) SystemSDR HEEA968425Transceiver · failedAFTER ONE MINUTE OF OPERATION RADIO TRANSCEIVER QUITS.Nov 4, 1996 · N3893P · Bell 412 · VHF Communications SystemSDR HEEA968411Indicator · ball sticksATTITUDE INDICATOR BALL STICKS IN PITCH.Nov 4, 1996 · N33008 · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA968404Damper Set · separatedDAMPERS SEPARATED CAUSING LEAD AND LAG PROBLEMS. SEE MMIR # HEEA0008404 FOR ADDITIONAL DAMPER SET REPLACED.Oct 30, 1996 · N2148K · Bell 412 · Main Rotor HeadSDR HEEA968403Damper Set · separatedDAMPERS SEPARATED CAUSING LEAD AND LAG PROBLEMS. SEE MMIR # HEEA0008403 FOR ADDITIONAL DAMPER SET REPLACED.Oct 30, 1996 · N2148K · Bell 412 · Main Rotor HeadSDR HEEA968396Longeron Assy · mis mfgNEW LONGERON APPEARS TO HAVE HAD ATTACHMENT BOSS PREVIOUSLY MILLED, LEAVING INSUFFICIENT HEIGHT OF BOSS FOR PROPER MILLING AFTER INSTALLATION OF PART.Oct 25, 1996 · Bell 412 · Fuselage Main, Longeron/StringerSDR HEEA968390Pitch Link · defectiveHOLE FOR SAFETY OF CHORDWISE WEIGHTS LOCATED IN WRONG PLACE. UNABLE TO SAFETY WITH REQUIRED WASHERS. ALSO REPLACED PITCH HORNS. SEE MMIR# HEEA0008388 AND HEEA0008389 FOR INFORMATION.Oct 18, 1996 · N3911L · Bell 412 · Tail Rotor Control SystemSDR HEEA968389Pitch Link · defectiveHOLE FOR SAFETY OF CHORDWISE WEIGHTS LOCATED IN WRONG PLACE. UNABLE TO SAFETY WITH REQUIRED WASHERS. ALSO REPLACED PITCH HORNS. SEE MMIR# HEEA0008388 AND HEEA0008390 FOR INFORMATION.Oct 18, 1996 · N3911L · Bell 412 · Tail Rotor Control SystemSDR HEEA968388Pitch Horn · defectiveHOLE FOR SAFETY OF CHORDWISE WEIGHTS LOCATED IN WRONG PLACE. UNABLE TO SAFETY WITH REQUIRED WASHERS. ALSO REPLACED PITCH LINKS. SEE MMIR# HEEA0008389 AND HEEA0008390 FOR INFORMATION. S/N A9 A11Oct 18, 1996 · N3911L · Bell 412 · Tail Rotor Control SystemSDR HEEA968385Computer · inopFZ702 COMPUTER INOPERATIVE - ALL MODES.Oct 18, 1996 · N107X · Bell 412 · Autopilot ComputerSDR HEEA968376Cvr · failedCVR NO TEST LIGHT WHEN SWITCH TO PILOT OR COPILOT TEST POSITION, GARBLED NOISE AND SQUEAL OVERHEAD SET IN TEST POSITION, AND NO LIGHT AFTER 10 MINUTES WITHOUT AIRCRAFT RUNNING.Oct 15, 1996 · N3893P · Bell 412 · Audio/Video MonitoringSDR HEEA968375Bearing · excess wearEXCESSIVE WEAR ON OUTBOARD BEARING FACE. INSTALLED SERVICEABLE BEARING. CHECK FOR PROPER FIT AND CORRECT TORQUE.Oct 15, 1996 · N23023 · Bell 412 · Main Rotor HeadSDR HEEA9683747000 Rcu · failedLORAN WILL NOT MAINTAIN STATIONS.Oct 15, 1996 · N2261D · Bell 412 · Long-Range Navigation (LORAN) SystemSDR HEEA968369Receiver · inoperativeRECEIVER INTERMITTENLY INOPERATIVE. PERFORMED PRELIMINARY INSPECTION. REPLACED I.C.'S I323, I324, CAPACITOR C380, DIODE CR315 AND RESISTOR R424. REPLACED CORRODED FRONT CONNECTOR J8061 AND BROKEN SPACER PLATE. BENCH CHECK GOOD.Oct 15, 1996 · N107X · Bell 412 · Automatic Direction Finder (ADF) SystemSDR HEEA968366Transciever · failedTRANSCEIVER UNUSABLE AFTER 3 MILES - SQUELCH IS INTERMITTENT. UNIT WAS SENT TO ALLIED SIGNAL ON 7-23-96 FOR UNIT BECOMING DISTORTED AND BAD RECEIVER SQUELCH AFTER WARM UP. UNIT REPAIRED BY ALLIED SIGNAL ON 8-16-96 AND IS BACK IN SHOP 9-6-96 FOR SQUELCH PROBLOct 15, 1996 · N22347 · Bell 412 · VHF Communications SystemSDR HEEA968346Indicator · ball sticksINDICATOR BALL STICKS IN PITCH AND ROLL.Oct 14, 1996 · N33008 · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA968345Rate Gyro · defectiveRATE GYRO INDICATING 15 DEGREES LEFT TURN IN STRAIGHT LEVEL FLIGHT.Oct 14, 1996 · N7128R · Bell 412 · Turn and Bank/Rate of Turn IndicatorSDR HEEA968335Converter · failedMOTOR SPINS BUT DOES NOT DRIVE CONNECTOR.Oct 14, 1996 · N2261D · Bell 412 · Windshield/Door Rain/Ice RemovalSDR HEEA968334Computer · defectiveIN ATT MODE NO. 1 ROLL CHANNEL INTERMITTENTLY SATURATES FULL LEFT CAUSING NO. 2 ROLL TO CORRECT RIGHT.Oct 14, 1996 · N108X · Bell 412 · Autopilot ComputerSDR HEEA968328Indicator · reads highREADS HIGH ON LOW END AND LOW ON HIGH END OF SCALE.Oct 14, 1996 · N2258F · Bell 412 · Fuel Pressure IndicatorSDR HEEA968299Altimeter · friction errorEXCESSIVE FRICTION ERROR.Oct 14, 1996 · N6559Z · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA968286Cartridge · defectiveFUEL TRANSFER PUMP WILL NOT TRANSFER FUEL TO MAIN TANK IN FLIGHT. YOU CAN HEAR PUMP RUN, BUT IT DOESN'T TRANSFER.Oct 14, 1996 · N3893N · Bell 412 · Fuel Boost PumpSDR HEEA968285Transmitter · defectivePRESSURE READS HIGH.Oct 14, 1996 · N7128R · Bell 412 · Engine Oil PressureSDR HEEA968264Converter · defectiveWILL NOT STOW AND EXCESSIVE PLAY IN SHAFT.Oct 14, 1996 · N22347 · Bell 412 · Windshield/Door Rain/Ice RemovalSDR HEEA968263Indicator · errorNEEDLE IS OFF 200 FEET.Oct 14, 1996 · N108X · Bell 412 · Rate of Climb IndicatorSDR HEEA968244Motor Assy · failedARMATURE HAS DEAD SPOT.Oct 11, 1996 · N108X · Bell 412 · Entrance StairsSDR HEEA968234Transmitter · defectiveTRANSMITTER CAUSED LOW OIL PRESSURE READINGS.Oct 11, 1996 · N3893N · Bell 412 · Engine Oil PressureSDR HEEA968187Computer · erraticAFCS COMPUTER LIGHTS ERRATIC.Oct 10, 1996 · N22347 · Bell 412 · Autopilot ComputerSDR HEEA968185Receiver · intermittentINTERMITTENT AUDIO SIGNAL. PERFORMED PRELIMINARY INSPECTION AND FOUND CORROSION AND BURN SPOT ON MAIN BOARD. CLEANED CORROSION AND SCRAPED CARBON OUT AND CLEANED MAIN BOARD. REPLACED CORRODED INTEGRATED CIRCUITS I323 AND I324, ALSO CORRODED CAPACITOR C380. Oct 10, 1996 · N2148K · Bell 412 · Automatic Direction Finder (ADF) System
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