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 HEEA0012370Receiver · erraticTURNING KNOB GIVES ERRATIC READINGS.Dec 17, 1997 · N1202T · Bell 412 · Global Positioning SystemSDR HEEA0012366Control · failedDISPLAY STAYS BRIGHT. PERFORMED PRELIMINARY INSPECTION. FOUND DISPLAY NOT DIMMING. REPLACED V101 PHOTOCELL. REPAIRED. ALSO REPLACED INTERMITTENT TRANSFER SWITCH S102. REPAIRED. BENCH CHECK GOOD.Dec 17, 1997 · N2149S · Bell 412 · VHF Communications SystemSDR HEEA0012317Valve · failedMIXING VALVE FAILED. CANNOT REGULATE.Dec 8, 1997 · N22347 · Bell 412 · Heating SystemSDR HEEA0012298Linear Actuator · failedLINEAR ACTUATOR INOPERATIVE.Dec 8, 1997 · N6559Z · Bell 412 · Main Rotor ControlSDR HEEA0012297Motor · failedTEMP CONTROL MOTOR INOPERATIVE.Dec 8, 1997 · N6559Z · Bell 412 · Cabin Temperature Control SystemSDR HEEA0012283Pump · defectiveFUEL BOOST PUMP COVER PLATE BROKEN OFF.Dec 8, 1997 · N2261D · Bell 412 · Fuel Boost PumpSDR HEEA0012281Engine · failedENG POWER SECT NEEDS OVERHAUL DUE TO N1 AND N2 WILL NOT ROTATE.Dec 8, 1997 · N107X · Bell 412 · Engine (Turbine/Turboprop)SDR HEEA0012242Indicator · fluctuatingFUEL QUANTITY INDICATOR FLUCTUATING.Dec 5, 1997 · N7128R · Bell 412 · Fuel Quantity IndicatorSDR HEEA0012240Autopilot · failedAUTO PILOT CONTROL ANNUNCIATORS DIM.Dec 5, 1997 · N33008 · Bell 412 · Autopilot SystemSDR HEEA0012221Autopilot · failedAUTOPILOT CONTROL FWD. ALT. HOLD CIRCUIT INOPERATIVE.Dec 3, 1997 · N33008 · Bell 412 · Autopilot SystemSDR HEEA0012212Altimeter · failedALTIMETER 50 FEET LOW.Dec 3, 1997 · N33008 · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA0012208Limit Detector · failedLIGHT FLICKERS ON AND OFF AT 100% ROTOR RPM AUDIO RPM SOUNDS IN WRONG RANGES. CANNOT EXTINGUISH.Dec 3, 1997 · N7128R · Bell 412 · Rotor Drive Indicating SystemSDR HEEA0012205Actuator · bindingROTARY ACTUATOR LATERAL FORCE TRIM BINDING.Dec 3, 1997 · N141PH · Bell 412 · Main Rotor ControlSDR HEEA0012203Transmitter · failedLOW FUEL LIGHT COMING ON TOO SOON.Dec 3, 1997 · N141PH · Bell 412 · Fuel Pressure IndicatorSDR HEEA0012202Signal Cond · fluctuationFUEL FLUCTUATING FROM 700 POUNDS TO MAX.Dec 3, 1997 · N7128R · Bell 412 · Fuel Indicating SystemSDR HEEA0012188Indicator · failedTRIPLE TACH NR2 NEEDLE READS HIGH OUT OF TOLERANCE. ROTOR NEEDLE STICKS.Dec 3, 1997 · N3911L · Bell 412 · Engine RPM Indicating SystemSDR HEEA0012187Indicator · failedATTITUDE INDICATOR PRECESSES IN PITCH AND ROLL. TIME SINCE REPAIR 186:10.Dec 3, 1997 · N108X · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA0012186Gps165 · defectiveGPS ENTER SWITCH BROKEN.Dec 3, 1997 · N2148K · Bell 412 · Global Positioning SystemSDR HEEA0012173Blade · patchedRECEIVED WITH PATCH ON BLADE (SEEMS TO HAVE BEEN REPAIRED BY BELL DUE TO DENT ON LEADING EDGE AT T.T. NEW.Dec 2, 1997 · N7128R · Bell 412 · Tail Rotor BladesSDR HEEA0012157Control Unit · failedCONTROL DISPLAY STAYS DIM. PERFORMED PRELIMINARY INSPECTION AND REPLACED V101 PHOTOCELL AND PHOTOCELL LENS, REPAIRED, TESTED, CHECKED 28V LIGHTING. BENCH CHECK GOOD.Nov 28, 1997 · N2149S · Bell 412 · VHF Communications SystemSDR HEEA0012145Pump · failedBOOT PUMP NOISY AND PRESSURE FLUCTUATIONS.Nov 28, 1997 · N141PH · Bell 412 · Fuel Boost PumpSDR HEEA0012139Control · failedTEMPERATURE CONTROL INOPERATIVE.Nov 28, 1997 · N3893S · Bell 412 · Cabin Temperature Control SystemSDR HEEA0012124Actuator · failedSTEP ACTUATOR INOPERATIVE. WILL NOT RETRACT.Nov 25, 1997 · N3893N · Bell 412 · Entrance StairsSDR HEEA0012123Duct Assy · crackedEXH DUCT CRACKED/MISMANUFACTURED.Nov 24, 1997 · N3911L · Bell 412 · Engine Collector/Tailpipe/NozzleSDR HEEA0012122Actuator · failedSTEP ACTUATOR WILL NOT ACTUATE.Nov 24, 1997 · N107X · Bell 412 · Entrance StairsSDR HEEA0012121Actuator · failedSTEP ACTUATOR WILL NOT OPERATE AT ALL.Nov 24, 1997 · N108X · Bell 412 · Entrance StairsSDR HEEA0012116Fuel Control · leakingFUEL CONTROL LEAKING THROUGH WEEP HOLE AT BOTTOM OF FUEL CONTROL. REPLACED WITH SERVICEABLE FUEL CONTROL.Nov 19, 1997 · N6559Z · Bell 412 · Fuel Control/Reciprocating EnginesSDR HEEA0012115Sleeve Assy · corrodedSLEEVE ASSY HAS CORROSION ON O'RING GROOVE. REPLACED WITH SERVICEABLE SLEEVE.Nov 19, 1997 · N2148K · Bell 412 · Tail Rotor GearboxSDR HEEA0012114Case Assy · corrodedCASE ASSY HAS EXCESSIVE CORROSION AT O'RING GROOVE AND LUGS. REPLACED WITH SERVICEABLE CASE.Nov 19, 1997 · N2148K · Bell 412 · Tail Rotor GearboxSDR HEEA0012105Switch · leakingPRESSURE SWITCH LEAKING. S/N 3280 & 0083Nov 19, 1997 · N108X · Bell 412 · Fuel Indicating SystemSDR HEEA0012104Tarsyn · failedTARSYS UNIT FAILED TEST 8.5 ON SST BENCH. TIME SINCE REPAIR 0:00.Nov 19, 1997 · N1202T · Bell 412 · Autopilot SystemSDR HEEA0012103Tarsyn · failedTARSYN TAKES 30 MINUTES TO SPOOL UP.Nov 19, 1997 · N22347 · Bell 412 · Autopilot SystemSDR HEEA0012101Indicator · failedITT INDICATOR READS ZERO ALL OF THE TIME.Nov 19, 1997 · N2258F · Bell 412 · Engine EGT/TIT Indicating SystemSDR HEEA0012093Actuator · failedSTEP ACTUATOR VERY SLOW AND WEAK.Nov 19, 1997 · N293CA · Bell 412 · Entrance StairsSDR HEEA0012086Control · defectiveAUTO PILOT CONTROL PIN J2 PUSHED BACK.Nov 19, 1997 · N108X · Bell 412 · Autopilot SystemSDR HEEA0012083Indicator · sticksNR2 NEEDLE STICKS AT 30% INTERMITTENTLY.Nov 19, 1997 · N33008 · Bell 412 · Engine BMEP/Torque IndicatingSDR HEEA0012079Trim Compensator · failedTRIM COMPENSATOR READS 200 DEG COOLER THAN ACTUAL.Nov 19, 1997 · N107X · Bell 412 · Engine EGT/TIT Indicating SystemSDR HEEA0012077Actuator · failedACTUATOR SLOW TO REACT (BINDING).Nov 19, 1997 · N6559Z · Bell 412 · Main Rotor ControlSDR HEEA0012069Actuator · failedSTEP ACTUATOR WILL NO LONGER ACTUATE.Nov 19, 1997 · N22347 · Bell 412 · Entrance StairsSDR HEEA0012068Fz702 Computer · failedWITH FK DIRECTION ENGAGED IN ILS APPROACH, AIRCRAFT HAS A STEADY ROCK AND ROLL. SENTNov 19, 1997 · N1202T · Bell 412 · Autopilot ComputerSDR HEEA0012064Pump · failedPUMP CAUTION LIGHT CAME ON.Nov 19, 1997 · N141PH · Bell 412 · Fuel Boost PumpSDR HEEA0012062Lever Assy · pittedLEVER ASSY PITTED IN AREA.Nov 19, 1997 · N2261D · Bell 412 · Tail Rotor Control SystemSDR HEEA0012057Inverter · inoperativeINVERTER ON/OFF SWITCH INOPERATIVE. TIME SINCE REPAIR 0:00.Nov 19, 1997 · N1202T · Bell 412 · AC InverterSDR HEEA0012044Indicator · precessesATTITUDE PRECESSES IN AIRCRAFT.Nov 19, 1997 · N1202T · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA0012041Valve · defectiveVALVE HARD TO OPEN OR CLOSE.Nov 18, 1997 · N108X · Bell 412 · Fuel Selector/Shut-Off ValveSDR HEEA0012040Indicator · sticksTORQUE INDICATOR NR2 NEEDLE STICKS AFTER ONE HOUR USE. TIME SINCE REPAIR 217:05.Nov 18, 1997 · N108X · Bell 412 · Engine BMEP/Torque IndicatingSDR HEEA0012029Linear Actuator · wornLINEAR ACTUATOR SHAFT WORN.Nov 18, 1997 · N2261D · Bell 412 · Main Rotor ControlSDR HEEA0012028Altimeter · sticksALTIMETER STICKS AT 500 FEET THEN JUMPS 300 FEET. DOES SAME AT 1500 FEET.Nov 18, 1997 · N21498 · Bell 412 · Altimeter, Barometric/EncoderSDR HEEA0012027Indicator · precessesATTITUDE INDICATOR PRECESSES EXCESSIVELY IN ROLL AXIS.Nov 18, 1997 · N108X · Bell 412 · Attitude Gyro and Indicating SystemSDR HEEA0012025Controller · inoperativeSERVO CONTROLLER INOPERATIVE.Nov 18, 1997 · N21498 · Bell 412 · Air Distribution System
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