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 HEEA967262Control Unit · defectiveDIGITS WEAK AND HARD TO TUNE. FOUND PHOTOCELL BAD. REPLACED PHOTOCELL V101 AND LENS COVER. BENCH CHECK GOOD.May 22, 1996 · N21498 · Bell 412 · VHF Communications SystemSDR HEEA967261Receiver · inoperativeINOPERATIVE. REPLACED F101 AND C101 CAPACITOR. PERFORMED HEADER MODIFICATION AND HUMISEALED HEADERS. LOCALIZER RECEIVER SENSE WEAK. ADJUSTED NAV RECEIVER BOARD.May 22, 1996 · N108X · Bell 412 · Visual Omnirange (VOR) SystemSDR HEEA967254Actuator · defectiveVERY WEAK AND STICKS. INSPECTED BY ACCESSORY OVERHAUL SHOP AND FOUND SWITCH NOT SET CORRECTLY FROM VENDOR. OUTPUT SHAFT MOVEMENT WAS VERY STIFF, SOME MOISTURE IN UNIT AND SOME INTERNAL CORROSION. REPAIRED ACTUATOR AND RETURNED TO SERVICE.May 21, 1996 · N33008 · Bell 412 · Entrance StairsSDR ERAA96240Bearing · excess playBEARINGS HAVE EXCESS RADIAL AND AXIAL PLAY.May 16, 1996 · N412EH · Bell 412 · Main Rotor Mast/SwashplateSDR ERAA96239Tube · mis mfgNEW TUBE . FITTING AND ROD END HAVE INCORRECT FIT. WALL THICKNESS TOO GREAT.May 16, 1996 · Bell 412 · Main Rotor Mast/SwashplateSDR HEEA967243Cone · coating scoredTEFLON COATING SCORED. SENT TO BELL HELICOPTER TEXTRON FOR INSPECTION AND REPAIR.May 15, 1996 · N2258F · Bell 412 · Main Rotor HeadSDR HEEA967230Bearing · defectiveDUPLEX BEARING CAGES SQUEEZE ON INNER RACE OF BEARING CAUSING A BIND ON INNER RACE AND DOESN'T TURN FREELY.May 14, 1996 · N2258F · Bell 412 · Tail Rotor GearboxSDR HEEA967224Servo Assy · defectiveSERVO KICKING IN FLIGHT.May 9, 1996 · N2261D · Bell 412 · Tail Rotor Control SystemSDR HEEA967218Actuator · malfunctionROTARY ACTUATOR INOPERATIVE. BINDING CYCLIC STICK AND NOT RELEASING FULLY WITH FORCE TRIM ON.May 9, 1996 · N3893P · Bell 412 · Main Rotor ControlSDR HEEA967217Actuator · stickingROTARY ACTUATOR NOT RELEASING INTERMITTENTLY.May 9, 1996 · N3893P · Bell 412 · Main Rotor ControlSDR HEEA967213Altimeter · case leakEXCESSIVE CASE LEAK AND 12 MONTH INSPECTION DUE.May 9, 1996 · N2298Z · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA967211Indicator · defectiveITT INDICATOR INTERNAL LIGHT INOPERATIVE.May 9, 1996 · N2298Z · Bell 412 · Engine EGT/TIT Indicating SystemSDR HEEA967205Elt · defectiveSWITCH PANEL INDICATOR LITE GLOWS CONTINUALLY.May 9, 1996 · N7128R · Bell 412 · Emergency Locator BeaconSDR HEEA967187Indicator · malfunctionWILL NOT REMAIN ERECT.May 9, 1996 · N107X · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA967186Indicator · precessesATTITUDE INDICATOR PRECESSES IN PITCH AND ROLL.May 9, 1996 · N107X · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA967177Tank · damagedAFT CROSSTUBE BROKE AND CRACKED FUEL TANK.May 8, 1996 · N3911L · Bell 412 · Fuel StorageSDR HEEA967173Altimeter · reads highRADAR ALTIMETER DH LIGHT COMES ON TOO SOON AND READS HIGH.May 8, 1996 · N33008 · Bell 412 · Ground Proximity SystemSDR HEEA967167Indicator · fluctuatesPRESSURE SIDE FLUCTUATES WHEN HOT.May 8, 1996 · N107X · Bell 412 · Main Rotor GearboxSDR HEEA967147Elt · malfunctionELT COMES ON INTERMITTENTLY AND DURING ENGINE START.May 8, 1996 · N22347 · Bell 412 · Emergency Locator BeaconSDR HEEA967145Indicator · needle splitTRIPLE TACH #1 AND #2 NEEDLE HAVE NEEDLE SPLIT. TIME SINCE REPAIR 6:35.May 8, 1996 · N33008 · Bell 412 · Engine RPM Indicating SystemSDR HEEA967131Altimeter · reads lowNEEDLE INDICATES 140 FEET LOW AT 18,000 FEET. SENT TO B.F. GOODRICH AEROSPACE FOR INSPECTION AND REPAIR.May 7, 1996 · N2014K · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA967110Cvr · failedCVR NO AUDIO OR LIGHT WHEN TESTED.May 6, 1996 · N107X · Bell 412 · Audio/Video MonitoringSDR HEEA967109Receiver · inoperativeADF IS INOPERATIVE.May 6, 1996 · N22608 · Bell 412 · Automatic Direction Finder (ADF) SystemSDR HEEA967108Indicator · flag sticksHSI DEVIATION VALID FLAG STICKS IN VIEW.May 6, 1996 · N7128R · Bell 412 · Integrated Flight SystemSDR HEEA967107Indicator · failedAIRSPEED NEEDLE WILLNOT GO TO ZERO.May 6, 1996 · N22347 · Bell 412 · Airspeed/Mach IndicatorSDR HEEA967105Control Unit · defectiveCONTROL UNIT HAS MULTIPLE SQUELCH PROBLEMS.May 6, 1996 · N22347 · Bell 412 · Visual Omnirange (VOR) SystemSDR HEEA967101Bolt · coat flakeTUNGSTEN COATING FLAKING OFF. SENT TO BELL HELICOPTER TEXTRON FOR INSPECTION AND REPAIR.May 6, 1996 · N3893P · Bell 412 · Main Rotor HeadSDR HEEA967100Cone · scoredLOWER CONE TEFLON COATING SCORED.May 6, 1996 · N3893P · Bell 412 · Main Rotor HeadSDR ERAA96231Bearing · wornBEARINGS WORN BEYOND LIMITS.May 3, 1996 · N164EH · Bell 412 · Main Rotor HeadSDR ERAA96230Bearing · wornBEARINGS WORN BEYOND LIMITS.May 3, 1996 · N164EH · Bell 412 · Main Rotor HeadSDR ERAA96229Trunnion Assy · bearing defectNEW TRUNNION BEARING THAT HAS DEFECTIVE SEAL. WHILE GREASING TO PREPARE TO INSTALL ON AIRCRAFT, SEAL POPPED OUT OF BEARING.May 3, 1996 · Bell 412 · Main Rotor Mast/SwashplateSDR HEEA967068Indicator · sticks#1 NEEDLE INTERMITTENTLY STICKS THROUGHOUT SCALE; #2 NEEDLE INOPERATIVE.Apr 23, 1996 · N33008 · Bell 412 · Engine RPM Indicating SystemSDR ERAA96228Bearing · excess playBEARINGS HAVE EXCESS AXIAL & RADIAL PLAY.Apr 22, 1996 · N417EH · Bell 412 · Main Rotor HeadSDR ERAA96227Bearing · excess playBEARINGS HAVE EXCESS RADIAL AND AXIAL PLAY.Apr 22, 1996 · N417EH · Bell 412 · Main Rotor HeadSDR HEEA967060Inverter · failedINVERTER DOES NOT COME ON LINE.Apr 18, 1996 · N22347 · Bell 412 · AC InverterSDR HEEA967059Inverter · inoperativeINVERTER IS INOPERATIVE.Apr 18, 1996 · N22347 · Bell 412 · AC InverterSDR HEEA967050Elevator Assy · flange crackedMOUNTING FLANGE THATS BONDED TO SPAR IS CRACKED FROM SPAR TOWARDS OUTER FLANGE. SCRAPPED ELEVATOR ASSEMBLY.Apr 18, 1996 · N2014K · Bell 412 · Elevator StructureSDR HEEA9670497000 Cdu · defectiveTOP LEFT NUMBER BURNED OUT.Apr 18, 1996 · N2261D · Bell 412 · Long-Range Navigation (LORAN) SystemSDR HEEA967047Transceivr · defectiveTRANSMITS AND RECEIVES WEAK.Apr 18, 1996 · N2014K · Bell 412 · VHF Communications SystemSDR HEEA967045Transceivr · failedTRANSCEIVER WON'T RECEIVE.Apr 18, 1996 · N2258F · Bell 412 · VHF Communications SystemSDR HEEA967037Cvr · failedCVR DOES NOT COMPLETE TEST. NO LIGHT-NO AUDIO.Apr 17, 1996 · N108X · Bell 412 · Audio/Video MonitoringSDR HEEA967029Altimeter · erraticSUSPECT CAUSING THE NEEDLE TO SWING FROM TOP TO BOTTOM, ERRATIC ABOVE 1700 FEET. FOUND NEEDLE TO BE ERRATIC AND PRECISION EQUIPMENT OUTPUT VOLTAGE TO BE BAD.Apr 17, 1996 · N2149S · Bell 412 · Ground Proximity SystemSDR HEEA967027Control · faultyLED DISPLAY DIM AND DIFFICULT TO READ IN SUNLIGHT. REPLACED PHOTOCELL V101 P/N 134-05005-0002. ALSO REPLACED PHOTOCELL LENS P/N 088-0548-00. REPAIRED. CHECKED LIGHTING AND TOUCHED UP FACEPLATE. BENCH CHECK GOOD.Apr 17, 1996 · N22347 · Bell 412 · VHF Communications SystemSDR HEEA967025Altimeter · defectiveNEEDLE ERRATIC ABOVE 2000 FEET. REPLACED PHOTOCELL V101 DUE TO WEAK DH LIGHT. PERFORMED COMPLETE CALIBRATION AND ALIGNMENT. FOUND WHEN NEEDLE IS REVOLVING, NEEDLE GETS STUCK BEHIND MASK.Apr 17, 1996 · N2149S · Bell 412 · Ground Proximity SystemSDR HEEA967022Indicator · failedSTANDBY FUNCTION INOPERATIVE; DISPLAY SHRINKS AND SPOKES.Apr 17, 1996 · N2149S · Bell 412 · Weather Radar SystemSDR HEEA967021Indicator · defectiveNO RF BAND IN TEST AND VERY INTERMITTENT TEST PATTERN.Apr 17, 1996 · N2149S · Bell 412 · Weather Radar SystemSDR HEEA967010Indicator · defectiveCO-PILOT'S INDICATOR (HEADING) PRECESSES EXCESSIVELY AND AT TIMES WILL NOT SLAVE PILOT'S INDICATOR WILL STICK AND CANNOT BE ADJUSTED.Apr 17, 1996 · N6559Z · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA967005Tarsyn 333 · defectivePILOT COMPASS NEEDLE STAYS CENTERED AT ALL TIMES.Apr 17, 1996 · N107X · Bell 412 · Auto Flight SystemSDR HEEA966974Indicator · inopGR BOX INDICATOR NEEDLES INOPERATIVE.Apr 8, 1996 · N7128R · Bell 412 · Main Rotor GearboxSDR HEEA966964Battery Pack · fail testBATTERY UNIT WILL NOT PASS CAPACITY TEST.Apr 8, 1996 · N21498 · Bell 412 · Battery/Charger System
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