Bell 407

Service difficulty reports · 6,813

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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 = '407'
  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 VE7A2026101200226Switch · failedDURING CRUISE FLIGHT, AIRCRAFT EXPERIENCED A FADEC FAILURE RESULTING IN LANDING OFFSITE AND PERFORMANCE OF A RUN ON LANDING.Oct 5, 2026 · N450PH · Bell 407 · Engine Control System WiringSDR QMLA2026092520073Fuel Sys · not reportedDURING FLIGHT PILOT THOUGHT HE HAD EXCESSIVE FUEL BURN THEN THE CREW REPORTED GAS FUMES. INSPECTED FUEL SYSTEM FOR LEAKS AND INTEGRITY, NO DISCREPANCIES FOUND. CHECKED FADEC FOR ANY FAULT CODES, NONE FOUND. PERFORMED GROUND RUNUP WITH NORMAL FUEL BURN RATES. Sep 24, 2026 · N184AM · Bell 407 · Fuel StorageSDR QMLA2026092120072Blower · odorON GOING ISSUE WITH AN ELECTRICAL SMELL IN FLIGHT. HAPPENED AGAIN LAST NIGHT FIRST TIME ME THE PILOT EVER SMELLED IT. WORKED THROUGH TO ISOLATE THE PROBLEM AND APPEARS TO BE THE BLOWER COMPONENTS. DISCREPANCY DEFERRED IN REF TO AMBH407 MEL REV#27. MEL ITEM 210Sep 20, 2026 · N229AM · Bell 407 · Air Distribution FanSDR EVCA20260915001Duct · collapsedELECTRICAL ODOR IN CABIN FOLLOWED BY AIR CONDITIONER FAILURE. THE HOSE IN BETWEEN THE EVAPORATOR AND AFT BLOWER COLLAPSED CAUSING THE AFT BLOWER CB TO POP.Sep 14, 2026 · N660AE · Bell 407 · Air Distribution SystemSDR QMLA2026091320064Bypass Valve · failedUPON LANDING NOTICED COPIOUS AMOUNTS OF SMOKE BILLOWING FROM THE EXHAUST. SHUTDOWN AND NOTED THAT THE ENGINE OIL SITE GLASS WAS EMPTY. REPLACED ENGINE TURBINE ASSEMBLY, COMPETED AAIP INSPECTIONS, RII CHECKLIST, OPERATIONAL CHECKS, AIRCRAFT RETURNED TO REVENUESep 13, 2026 · N293AM · Bell 407 · Engine (Turbine/Turboprop)SDR QMLA2029090520061Unknown · odorDURING FLIGHT THERE WAS AN INTERMITTENT ELECTRICAL BURNING SMELL, NO SMOKE, UNIDENTIFIED SOURCE. PREFORMED AIRCRAFT OPERATIONS CHECK AND GROUND RUN FOR 16 MINUTES. PUT UNDER ELECTRICAL LOAD AND ALL AIR CONDITIONING SETTINGS. COULD NOT DUPLICATE THE SMELL.Sep 2, 2026 · N229AM · Bell 407 · Air Distribution SystemSDR 8LFA202608250003Resistor · failedDURING FLIGHT SMOKE/FUMES EMANATED FROM LEFT AIR CONDITIONING BLOWER. TROUBLESHOOTING REVEALED THAT A FAILED RESISTOR CAUSED THE BLOWER MOTOR TO FAIL AND PRODUCE SMOKE/FUMES. AIR COMM VAPOR CYCLE AIR CONDITIONING STC# SR00222DE INSTALLED.Aug 23, 2026 · N409LF · Bell 407 · Air Distribution FanSDR QMLA20260812Indicator · inoperativeRECEIVED AND INSTALLED REPLACEMENT MGT INDICATOR. APPLIED GROUND POWER AND THE UNIT PASSED THE LCD TEST. AFTER ENGINE START THE MGT INDICATED ZERO. AIRCRAFT WAS SHUTDOWN AND I PERFORMED AN MGT INDICATOR FUNCTIONAL CHECK WITH THE BARFIELD TURBINE TEMP TESTER. TAug 12, 2026 · N445SL · Bell 407 · Central WarningSDR QMLA2026081301Indicator · dimTHE MGT INDICATOR WAS WRITTEN UP AS DIM. WE HAD A REPAIRED UNIT IN STOCK AND REPLACED THE INDICATOR. TWO POWER CYCLES WERE PERFORMED AND THE INDICATOR FUNCTIONED NORMALLY. THE PILOT THEN ATTEMPTED TO START THE AIRCRAFT AND ABORTED THE START AFTER A FEW SECONDSAug 11, 2026 · N445SL · Bell 407 · Central WarningSDR 2026FA0000635Blower Motor · burned outSHORTLY AFTER DEPARTURE, TURNED ON THE BLOWER. AFTER A FEW MINUTES CREW REPORTED A BURNING RUBBER SMELL. I TURNED OFF THE BLOWER AND THE SMELL DISSIPATED. I TURNED ON THE AIR CONDITIONER TO SEE IF IT CAME BACK AND WE EXPERIENCED THE SAME SMELL. AFT BLOWER MOTOAug 8, 2026 · N409GA · Bell 407 · Air Distribution SystemSDR 2026FA0000617Blower Motor · burned outCREW SMELLED A BURNING OR SMOKY SMELL COMING FROM AC VENTS. TURNED OFF AC AND BLOWER MOTOR, PULLED CIRCUIT BREAKER FOR AC, OPENED VENTS AND WINDOWS. AIRCRAFT LANDED WITH NO OTHER FAULTS.Jul 31, 2026 · N407BU · Bell 407 · Air Distribution FanSDR QMLA2026072720050Unknown · odorDURING THE FLIGHT, AN ONGOING FUEL ODOR WAS PRESENT IN THE CABIN. BOTH CREW MEMBERS DETECTED THE ODOR, AND THE NURSE REPORTED BECOMING NAUSEATED FROM THE ODOR. AFTER SHUTDOWN, ENTERED THE AFT CABIN AND CONFIRMED THE FUEL ODOR WAS STILL PRESENT. THE ODOR WAS Jul 26, 2026 · N407LS · Bell 407 · Air Distribution SystemSDR QMLA2026072520049Dual Tachometer · degradedNEEDLES ON DUAL TACH NOT ALIGNED WHILE RUNNING. FADEC DEGRADED/RESTART FAULT LIGHT ILLUMINATED AFTER STARTUP. REMOVED AND REPLACED DEFECTIVE DUAL TACH GAUGE.Jul 23, 2026 · N404LL · Bell 407 · Engine RPM Indicating SystemSDR YTRA202620720001Control Unit · meltedON JULY 17, 2026, CONDUCTING TRAINING FLIGHTS WHEN THE PILOT OBSERVED SMOKE IN THE COCKPIT ON THE COPILOT’S SIDE NEAR THE INSTRUMENT SHROUD AREA. THE PILOT SUSPECTED THE SOURCE MAY HAVE BEEN THE AIRCRAFT’S BATTERY COMPARTMENT AND MADE A PRECAUTIONARY LANDING Jul 17, 2026 · N675RL · Bell 407 · Exterior LightingSDR QMLA2026071720048Unknown · odorELECTRICAL ODOR NOTICED DURING FLIGHT BACK TO BASE. PERFORMED OPS CHECKS. UNABLE TO DUPLICATE SMELL. RTSJul 17, 2026 · N229AM · Bell 407 · Air Distribution SystemSDR QMLA2026071420046Elec Connector · pulledRESTART FAULT AND FADEC DEGRADED LIGHTS ILLUMINATED ON TAKE OFF. PULLED FAULT ADAPTOR ELEC CONNECTOR. CLEANED AND REINSTALLED. CLEARED CODE, OPS GROUND RUN GOOD. NO DEFECTS NOTED.Jul 13, 2026 · N404LL · Bell 407 · Engine Fuel System WiringSDR QMLA2026071320045Warning Light · false activationXMSN CHIP LIGHT ILLUMINATED IN FLIGHT, INSPECTED AND PERFORMED SERVICEABILITY CHECK. OPERATIONAL CHECK PERFORMED AS WELL. RTS.Jul 13, 2026 · N407AM · Bell 407 · Central WarningSDR EVCA202607011Warning Light · false activationDEPARTED HOSPITAL, XSMN CHIP LIGHT ILLUMINATED APPROX 2 MIN AFTER DEPARTURE. ABORTED FLIGHT, CONDUCTED PRECAUTIONARY EMERGENCY LANDING AT AIRPORT. REMOVED AND INSPECTED UPPER AND LOWER TRANS AND FREE WHEELING CHIP DETECTORS, REMOVED AND CHECKED FILTER, AND FOUJul 1, 2026 · N728AE · Bell 407 · Main Rotor Drive SystemSDR EVCA20260714001Motor · faultedAIRCRAFT DEPARTED THE BASE FOR A SCENE FLIGHT IN NASHVILLE ARKANSAS. APPROXIMATELY 5 MINUTES AFTER DEPARTURE CREW DESCRIBED SMELLING ELECTRICAL WIRES BURNING ALONG WITH ALL AIR CONDITIONER BLOWERS STOPPING. UPON TROUBLESHOOTING THE SYSTEM IT WAS FOUND THAT THEJun 21, 2026 · N102AE · Bell 407 · Air Distribution FanSDR QMLA2026061320038Oil System · low pressureUPON INITIATION OF VISUAL APPROACH, THE CREW ALERTING SYSTEM DISPLAYED AN ENGINE OIL PSI WARNING. ADJUSTED OIL PRESSURE, OPS CHECKED GOOD. ALL MAINTENANCE COMPLETED. AIRCRAFT RELEASED TO REVENUE SERVICE. #59613Jun 11, 2026 · N159AM · Bell 407 · Engine Oil PressureSDR QMLA2026061220037Blower Motor · failedDURING DECELERATION ON APPROACH TO HOME BASE, BOTH AIR-CONDITIONING BLOWERS CEASED OPERATING. SHORTLY THEREAFTER, ALL OCCUPANTS DETECTED A BURNING PLASTIC ODOR IN THE AIRCRAFT. DEACTIVATED AIR CONDITIONING SYSTEM MEL'D 2100-01. REPLACED FORWARD RT EVAPORATORJun 11, 2026 · N407LS · Bell 407 · Air Distribution FanSDR QMLA2026061220036Fuel Cap · leakingFUEL SMELL IN CABIN ON RETURN FLIGHT BACK TO BASE FROM PHOENIX AZ, REPLACED FUEL CAP.Jun 8, 2026 · N113AM · Bell 407 · Fuel StorageSDR QMLA2026060520035Unknown · odorON TAKEOFF AND LANDING, STRONG FUEL/EXHAUST SMELL IN REAR CABIN.Jun 5, 2026 · N407LS · Bell 407 · Air Distribution SystemSDR QMLA2026060120033Chip Detector · contaminatedUPON LANDING TO TRANSLOAD A PATIENT, THE TGB CHIP LIGHT ILLUMINATED. DUE TO THIS INDICATION AND SUBSEQUENT ENGINE SHUTDOWN, WE WERE UNABLE TO COMPLETE THE TRANSPORT OF THE PATIENT. THE PATIENT WAS THEN MOVED BY AMBULANCE. CHIP DETECTOR CLEANED, FINDINGS INDICAMay 30, 2026 · N947MD · Bell 407 · Tail Rotor GearboxSDR 2026F00115Engine · smokeTHIS IS TO REPORT A NEW EVENT FOLLOWING SDR NO. 2120-0663. THE REPAIRED ENGINE WAS TAKEN OUT OF SERVICE FOR THE ENGINE SMOKE WHEN ENGINE TRANSITIONS FROM FLY TO IDLE. TROUBLESHOOTING WAS CARRIED OUT PER THE ROLLS ROYCE MANUAL. NO DISCREPANCIES WERE NOTED. May 20, 2026 · N777ZA · Bell 407 · Engine (Turbine/Turboprop)SDR QMLA2026052020031Blower · smokeSMOKE AND FUMES IN CABIN/COCKPIT FROM SUSPECTED AIR CONDITIONER BLOWER ISSUEMay 20, 2026 · N407LS · Bell 407 · Air Distribution FanSDR EVCA20260511001Blower Motor · unserviceableSMOKE SMELL, AND VISUAL SMOKE IN CABIN. INSPECTED AIRCRAFT DETERMINED SMOKE SMELL TO BE COMING FROM AFT AC BLOWER MOTOR. REFERENCE AIR COMM ICA 407EC-200M-2.May 8, 2026 · N39AE · Bell 407 · Air Distribution FanSDR QMLA2026050720028Unknown · odorRAW JET FUEL SMELL IN AIRCRAFT CABIN WHILE IN FLIGHT.May 7, 2026 · N696AM · Bell 407 · Air Distribution SystemSDR 2026F00095Hmu · faultedPILOT GOT RESTART FAIL LIGHT ON CAUTION PANEL. TESTING UNIT REVEALED ERRATIC READINGS OF THE FUEL METERING VALVE POTENTIOMETER.Apr 30, 2026 · N670RL · Bell 407 · Fuel Control/Turbine EnginesSDR 454A260420151853Spring · overtorquedDURING CLIMBOUT, LOUD BRIEF BUZZING NOISE HEARD. CREW STARTED SMELLING A CHARRING SMELL. CHARRING SMELL INCREASED WHILE ON THE GROUND. MAINTENANCE CREW TROUBLESHOT. EXTERNAL HYDRO POWER WAS APPLIED TO ATTEMPT TO IDENTIFY THE SERVO. COULD NOT REPLICATE THE CHARApr 20, 2026 · N369PA · Bell 407 · Rotorcraft Servo SystemSDR 2026F00096Metering Valve · faultedPILOT GOT RESTART FAULT ON CAUTION PANEL. CODES EXTRACTED WAS WFMVRTFLT INDICATING ISSUE WITH FUEL METERING VALVE POTENTIOMETER.Apr 19, 2026 · N660RL · Bell 407 · Fuel Controlling SystemSDR QMLA2026040620026Transmission · making metalTRANSMISSION CHIP LIGHT IN FLIGHT. DRAINED AND FLUSHED SYSTEM. OPS CHECKS GOOD RTS,Mar 29, 2026 · N528AM · Bell 407 · Main Rotor GearboxSDR 2026FA0000229Brushes · wornFOUND ONE BRUSH ONLY OF FOUR, WORN TO METAL, CONTACTING ARMATURE. STARTER / GENERATOR, BELL P/N: 206-062-200-113, MFR P/N: 23081-018Mar 26, 2026 · N407WF · Bell 407 · Starter-GeneratorSDR QMLA2026032120022Wire Harness · faultedON SHORT FINAL THE FADEC CHANNEL FAIL CAUTION LIGHT ILLUMINATED; IT WAS FOLLOWED BY THE CHECK INSTRUMENT WARNING LIGHT A SECOND LATER, THEN FINALLY THE FADEC MAINTENANCE LIGHT CAME ON FOLLOWED BY A MARRIED LOSS OF MY NR AND NP NEEDLES. MUCH LIKE A BIT TEST THEMar 20, 2026 · N773AL · Bell 407 · Engine Fuel System WiringSDR QMLA2026032020021Warning Light · false activationTRANSMISSION CHIP LIGHT ON ROLL UP TO FLIGHT. REMOVED AND INSPECTED ALL TRANSMISSION CHIP DETECTORS FOUND NO METAL DURING REINSTALL OF LOWER CHIP DETECTOR CHIP LIGHT CAME ON. TESTED LOWER CHIP DETECTOR FOUND IT HAD INTERNALLY FAILED.Mar 20, 2026 · N645AM · Bell 407 · Main Rotor GearboxSDR QMLA2026031920020Solenoid Valve · failedHYDRAULIC SYSTEM FAIL CAS ILLUMINATED ON TOUCHDOWN.Mar 19, 2026 · N292AM · Bell 407 · Hydraulic System, MainSDR 2026F00042Skin · crackedTHE MECHANIC WAS COMPLYING WITH THE ZONE 3 TRANSMISSION INSPECTION WHEN HE FOUND THE CRACK. IT WAS FOUND BECAUSE OF BLACK OIL AROUND THE AREA. HE CLEANED THE AREA AND COMPLETED A DYE PENETRANT INSPECTION TO VERIFY THE CRACK. THE CRACK LENGTH IS 2", LOCATED ATMar 11, 2026 · N403PH · Bell 407 · Fuselage Main, Plate/SkinSDR 8LFA202603100002Nut · looseDURING FLIGHT IT WAS NOTED AN ABNORMAL METALLIC NOISE EMANATING FROM THE TAIL BOOM AREA. IT WAS DECIDED TO PERFORM A PRECAUTIONARY LANDING DUE TO THE NOISE HEARD. UPON INSPECTION OF THE AIRCRAFT THE TAIL ROTOR MAST NUT WAS FOUND IN A LOOSE CONDITION. SAFETYMar 10, 2026 · N463LF · Bell 407 · Tail Rotor HeadSDR VE7A202603190040Skin · crackedTHE MECHANIC WAS COMPLYING WITH THE ZONE 3 TRANSMISSION INSPECTION WHEN HE FOUND A CRACK. THE CRACK WAS EMANATING FROM THE FORWARD RIGHT HAND PYLON BEAM ATTACHMENT POINT. IT WAS FOUND BECAUSE OF BLACK OIL AROUND THE AREA. HE CLEANED THE AREA AND COMPLETED A DYMar 3, 2026 · N401PH · Bell 407 · Fuselage Main, Plate/SkinSDR EVCA202603030002Unknown · odorCREW SMELLED ELECTRICAL BURNING WHEN HEATER WAS TURNED ON. COULD NOT DUPLICATE ON GROUNDMar 3, 2026 · N190AE · Bell 407 · Air Distribution SystemSDR QMLA2026013120008Pma · faultedPRECAUTIONARY LANDING MADE DUE TO GRINDING NOISE & VIBRATION IN COCKPIT. PMA FOUND TO BE FAULTY. REPLACED THE PMA.Jan 29, 2026 · N407AM · Bell 407 · Electrical Power SystemSDR QMLA2026012520005Chip Detector · false activationTRANSMISSION CHIP LIGHT CAME ON DURING APPROACH. CLEANED CHIP, GROUND RUN ACCOMPLISHED IAW DMC-407-A-63-00-00-0/A-319 TABLE 1Jan 23, 2026 · N473RA · Bell 407 · Main Rotor GearboxSDR QMLA2026011120002Unknown · odorMED CREW REPORTS A FUEL ODOR WHILE IN FLIGHT. PERFORMED VISUAL INSPECTION OF ALL VIABLE FUEL LINES, FUEL SUMPS, FUEL NOZZLE, AND FUEL FILTERS, IAW AMM DMC 407-A-24-00-00-130A-A. NO LEAKS NOTED AT THIS TIME.Jan 11, 2026 · N772AL · Bell 407 · Air Distribution SystemSDR EVCA20260105001Bracket · leakingFUEL FUMES COMING OUT OF NURSE'S STATION SEAT BELT SLOT. REPAIRED BY REMOVING ROLLOVER ACCESS PANEL AND APPLIED SEALANT AROUND THE INERTIAL REEL RESTRAINT BRACKETJan 3, 2026 · N481AE · Bell 407 · Aircraft Fuel SystemSDR QMLA2025112820118Engine · making metalAIRCRAFT WAS APPROACHING STELLAR AIRPORT IN RENO, NV FOR FUEL WHEN THE ENGINE CHIP LIGHT CAME ON. PILOT LANDED AT THE AIRPORT AND CALLED MECHANICS. MECHANICS PULLED CHIP DETECTORS AND FOUND BOTH TO BE HEAVILY CONTAMINATED INCLUDING OIL SAMPLE.Nov 28, 2025 · N223AM · Bell 407 · Engine (Turbine/Turboprop)SDR EVCA202512010001Hose · meltedSMOKE IN CABIN, AC HOSE ASSY HAD SPIRAL WRAP ON IT THAT CONTACTED HEATER SYSTEM FITTING BETWEEN TUBES PN: S-9402EC-17 AND S-9402EC-12 WHICH MELTED AND IS SUSPECTED TO HAVE CAUSED THE SMOKE IN CABIN EVENT.Nov 26, 2025 · N870AE · Bell 407 · Cabin Cooling SystemSDR 8LFA202506170004Blade · failedUPON START PILOT HEARD HIGH PITCH HOWLING NOISE EMANATING FROM ENGINE/EXHAUST AREA. PILOT ELECTED TO SHUTDOWN TO NOTIFY MAINTENANCE. UPON RECEIPT, PHI CONDUCTED A BORESCOPE INSPECTION AND NOTED DAMAGE ON THE 1ST STAGE TURBINE WHEEL. THE 1ST STAGE TURBINE WHENov 8, 2025 · N411LF · Bell 407 · Engine (Turbine/Turboprop)SDR QMLA2025102320108Oil Filter · failedON CLIMB OUT, ENGINE OIL FILTER CAUTION LIGHT ILLUMINATED. PROCEDURE IS LAND AS SOON AS PRACTICAL. I WAS OVER A NUMBER OF BUILDING AND ALREADY HEADED FOR THE AIRPORT AND CONTINUED TO LAND ON THE RAMP. INSPECTION AFTER SHUTDOWN SHOWED APPROPRIATE ENGINE OIL LEVOct 22, 2025 · N88YJ · Bell 407 · Turbine Engine Oil SystemSDR QMLA2025102120106Potentiometer · unserviceableA FADEC DEGRADE CAUTION LIGHT ILLUMINATED IN-FLT ENROUTE BACK TO HOMEBASE. AFTER NOTIFYING THE CREW OF THE EMERGENCY EVENT THAT OCCURRED, EXECUTED EMERGENCY PROCEDURE IAW BH407HP RFM, WHICH WAS TO ENSURE ACFT STABILIZED & MINIMIZING CONTROL INPUTS, FADEC RESOct 20, 2025 · N775AL · Bell 407 · Central WarningSDR QMLA2025101420104Engine · overspeedENGINE OVERSPEED DURING FLIGHT.Oct 14, 2025 · N911CN · Bell 407 · Engine (Turbine/Turboprop)
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