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 HEEA0011292Transmitter · defectiveTORQUE TRANSMITTER PINS FOR ELECTRICAL CONNECTOR TWISTED, KEY BROKEN.Oct 8, 1997 · Bell 412 · Engine BMEP/Torque IndicatingSDR HEEA0011291Actuator Rotary · sticksROTARY ACTUATOR STICKING.Oct 8, 1997 · N21498 · Bell 412 · Main Rotor ControlSDR HEEA0011290Indicator · sticksNEEDLE STICKS THROUGHOUT SCALE.Oct 8, 1997 · N108X · Bell 412 · Engine RPM Indicating SystemSDR HEEA0011284Indicator · defectiveTRIPLE TACH INDICATOR STAYS 5% BELOW.Oct 8, 1997 · N5759N · Bell 412 · Engine RPM Indicating SystemSDR HEEA0011283Indicator · mis markedTRIPLE TACH INDICATOR WRONG MARKINGS.Oct 8, 1997 · N108X · Bell 412 · Engine RPM Indicating SystemSDR HEEA0011282Compass · screws missingCOMPASS MISSING COVERPLATE SCREWS.Oct 8, 1997 · N21498 · Bell 412 · Magnetic CompassSDR HEEA0011275Fuel Cell · leakingRT UPPER FUEL CELL LEAKING.Oct 8, 1997 · N1202T · Bell 412 · Fuel StorageSDR HEEA0011274Fuel Cell · leakingFUEL CELL LEAKING.Oct 8, 1997 · N1202T · Bell 412 · Fuel StorageSDR HEEA0011273Fuel Cell · leakingFUEL CELL LEAKING.Oct 8, 1997 · N2261D · Bell 412 · Fuel StorageSDR HEEA0011272Indicator · sticksPRESSURE NEEDLE STICKS BETWEEN 40 AND 50 PSI.Oct 8, 1997 · N293CA · Bell 412 · Main Rotor GearboxSDR HEEA0011271Bolt · strippedPOWER SECTION OIL PUMP BOLT THREADS STRIPPED OUT OF GEARBOX AND EXCESSIVE CHAFING ON GEARBOX.Oct 8, 1997 · N5759N · Bell 412 · Turbine Engine Reduction GearSDR HEEA0011263Control · defectiveNAV CONTROL DISPLAY INTERMITTENT. PERFORMED PRELIMINARY INSPECTION AND FOUND DISPLAY DS101 BAD. REPLACED DS101 DISPLAY. REPAIRED. BENCH CHECK GOOD.Oct 8, 1997 · N6559Z · Bell 412 · Visual Omnirange (VOR) SystemSDR HEEA0011246Pump · leakFUEL DRIPPING FROM PUMP WIRES.Oct 7, 1997 · N22347 · Bell 412 · Fuel Boost PumpSDR HEEA0011245Transceiver · inoperativeTRANSCEIVER INOPERATIVE.Oct 7, 1997 · N3911L · Bell 412 · VHF Communications SystemSDR HEEA0011244Canister · defectiveNR2 ENGINE SMOKES (WHITE SMOKE) ON SHUTDOWN.Oct 7, 1997 · N141PH · Bell 412 · Aircraft Fuel Distribution SystemSDR HEEA0011243Transponder · inoperativeTRANSPONDER INOPERATIVE. DOES NOT TRANSMIT OR RECEIVE. PERFORMED PRELIMINARY INSPECTION AND FOUND UNIT DOES NOT TRANSMIT OR RECEIVE. REPLACED I515, I532, I533, I534, I535, I536, I540 AND I541 ALL INTEGRATED CIRCUITS. DID NOT REPAIR. SENT TO ALLIED SIGNAL AOct 7, 1997 · N3893L · Bell 412 · ATC Transponder SystemSDR HEEA0011223Receiver · failedRECEIVER WON'T RECEIVE. PERFORMED PRELIMINARY INSPECTION AND FOUND NO NEEDLE MOVEMENT. REPLACED MOTOR B702, FUSE F401, TRANSISTOR Q701 AND DIODE CR701. ALSO REPLACED WORN GROUND SPRING.Oct 7, 1997 · N3893N · Bell 412 · Automatic Direction Finder (ADF) SystemSDR HEEA0011222Bearing · wornWORN BALL BEARING SHOULDER ON ROD END. REPLACED ROD END AND PITCH HORN.Oct 7, 1997 · N108X · Bell 412 · Main Rotor HeadSDR HEEA0011214Control · defectiveNAV CONTROL LED READOUT TOO DIM FOR DAYLIGHT OPERATION. PERFORMED PRELIMINARY INSPECTION AND FOUND V101 PHOTOCELL BAD. REPLACED PHOTOCELL. BENCH CHECK GOOD.Oct 7, 1997 · N6559Z · Bell 412 · Visual Omnirange (VOR) SystemSDR CA971015065Cowling · departed(CAN) EVERYTHING NORMAL ON TEST FLIGHT. AFTER SHUTDOWN IT WAS NOTED THAT LEFT COWLING WAS MISSING. A FASTENER REQUIRED PER ASB 412-95-87 HAD NOT BEEN INSTALLED. THE LEFT STABILIZER WAS DAMAGED AT ITS JUNCTION WITH TAILBOOM BY COWL.Oct 7, 1997 · Bell 412 · Engine Cowling SystemSDR HEEA0011202Actuator · failedSTEP ACTUATOR NOT FUNCTIONING.Oct 6, 1997 · N22347 · Bell 412 · Entrance StairsSDR HEEA0011199Fuel Control · contaminated8 TO 10% OSCILLATION AT 100% N2. FOUND FUEL CONTROL CONTAMINATED WITH TAN COLORED SAND LIKE MATERIAL. CLEANED ALL ENGINE AIR LINES AND REPLACED FUEL CONTROL.Oct 2, 1997 · N22347 · Bell 412 · Fuel Control/Reciprocating EnginesSDR HEEA0011186Indicator · reads lowTRIPLE TACH READS 2% LOWER THAN PILOT'S SIDE.Oct 2, 1997 · N3911L · Bell 412 · Engine RPM Indicating SystemSDR HEEA0011185Indicator · erraticROTOR INDICATION ERRATIC.Oct 2, 1997 · N3911L · Bell 412 · Main Rotor Indicating SystemSDR HEEA0011177Transceiver · failedTRANSCEIVER PEGS ON HIGH SIDE. FAILED 5.1 ON SST.Oct 2, 1997 · N3893S · Bell 412 · Ground Proximity SystemSDR HEEA0011176Gps165 · errorsGPS BEARING INTERMITTENTLY ERRONEOUS.Oct 2, 1997 · N2148K · Bell 412 · Global Positioning SystemSDR HEEA0011170Actuator · failedACTUATOR INOPERATIVE WILL NOT MOTOR UP OR DOWN. SERIAL NUMBERS REMOVED ARE 1491, 1738, AND 640.Oct 2, 1997 · N21498 · Bell 412 · Entrance StairsSDR HEEA0011168Motor · failedMOTOR WILL NOT WORK.Oct 2, 1997 · N3893P · Bell 412 · Cabin Temperature Control SystemSDR HEEA0011161Indicator · failedATTITUDE GYRO WILL NOT REMAIN ERECT.Oct 2, 1997 · N21498 · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA0011158Indicator · faultyFUEL QTY INDICATOR FAULTY. CANNOT CALIBRATE DIGITAL READ OUT TO ZERO.Oct 2, 1997 · Bell 412 · Fuel Quantity IndicatorSDR HEEA0011157Actuator · defectiveYAW CHANNEL KICKS IN ALL MODES.Oct 2, 1997 · N21498 · Bell 412 · Tail Rotor Control SystemSDR HEEA0011150Control Unit · failedCONTROL UNIT KICKS GENERATOR OFF LINE.Oct 2, 1997 · N3893N · Bell 412 · DC Generating SystemSDR HEEA0011139Skidtube · corrodedLT SKID TUBE IS CORRODED. (BEYOND LIMITS .033)Oct 2, 1997 · N22347 · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA0011138Skidtube · corrodedSKID TUBE IS CORRODED. (BEYOND LIMITS .035)Oct 2, 1997 · N5759N · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA0011136Cap Assy Aft · deterioratedDETERIORATED RUBBER DISC.Oct 2, 1997 · N2149S · Bell 412 · Main Landing GearSDR HEEA0011135Tarsyn · defectiveTARSYN DEFECTIVE. ADI ROLLS OVER AND AFCS KICKS IN PITCH.Oct 2, 1997 · N7128R · Bell 412 · Autopilot SystemSDR HEEA0011133Indicator · defectiveNUMBERS ABOVE COURSE HARD TO SEE WHEN SETTING IN PILOTS SEAT DUE TO BLACK BAR LOW. NEW GAUGE WAS HIGHER UP.Oct 2, 1997 · N3893P · Bell 412 · Integrated Flight SystemSDR HEEA0011123Skidtube · corrodedRT SKID TUBE CORRODED BEYOND LIMITS .040.Sep 30, 1997 · N108X · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA0011122Skidtube · corrodedSKID TUBE CORRODED BEYOND LIMITS .034. SENT TO AIRBORNE SUPPLY, INC. FOR INSPECTION AND REPAIR.Sep 30, 1997 · N108X · Bell 412 · Main Landing Gear Strut/Axle/TruckSDR HEEA0011120Indicator · reads lowINDICATION READS 30 DEGREES LOW; LOOSE PART INSIDE; DH LAMP COVER MISSING.Sep 30, 1997 · Bell 412 · Ground Proximity SystemSDR HEEA0011119Indicator · reads lowAIRSPEED INDICATES LOW OUT OF TOLERANCE BELOW 60 KNOTS.Sep 30, 1997 · Bell 412 · Airspeed/Mach IndicatorSDR HEEA0011118Indicator · error3% SPLIT IN ENGINE RPMS.Sep 30, 1997 · N2014K · Bell 412 · Engine RPM Indicating SystemSDR HEEA0011111Indicator · failedGR BOX OIL PRESS SIDE DOESN'T INDICATE.Sep 30, 1997 · Bell 412 · Main Rotor GearboxSDR HEEA0011107Actuator Rotary · failedROTARY ACTUATOR WILL NOT MOTOR.Sep 30, 1997 · N2149S · Bell 412 · Main Rotor ControlSDR HEEA0011104Computer · failed testFAILED TEST 13.2 AND 13.3 IN PITCH ON SST.Sep 30, 1997 · N7128R · Bell 412 · Autopilot ComputerSDR 98ZZZX291Fuel Pump · failedON OUTBOUND FLIGHT, NR 1 ENGINE FLAMED OUT. RETURNED TO SHORE BASE AND MADE UNEVENTFUL SINGLE ENGINE LANDING. MAINTENANCE INVESTIGATION REVEALED INTERNAL SPLINE FAILURE OF PUMP AND COUPLING DRIVE. REF: P & W IPC, CHAPTER 72-00-11, FIGURE 1, ITEM 10.Sep 30, 1997 · N107X · Bell 412 · Engine Fuel PumpSDR HEEA0011098Actuator · defectiveSTEP ACTUATOR POPS CIRCUIT BREAKER.Sep 29, 1997 · N107X · Bell 412 · Entrance StairsSDR HEEA0011097Actuator · failedSTEP ACTUATOR POPS CIRCUIT BREAKER.Sep 29, 1997 · N3893N · Bell 412 · Entrance StairsSDR HEEA0011028Servo · leaksSERVO LEAKS AT TOP JO-SEAL.Sep 10, 1997 · N3893N · Bell 412 · Rotorcraft Servo SystemSDR HEEA0011023Altimeter · errorINDICATOR HAS EXCESSIVE FRICTION ERROR.Sep 10, 1997 · N142PH · Bell 412 · Altimeter, Barometric/Encoder
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