Bell 407

Service difficulty reports · 6,813

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 = '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 HEEA060009Disk Coupling · wornDISK COUPLING HAS EXCESSIVE GAP BETWEEN LAMINATES.Jan 15, 1999 · N447PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA060008Exhaust Stack · crackedEXHAUST STACK CRACKED.Jan 15, 1999 · N612PH · Bell 407 · Engine Collector/Tailpipe/NozzleSDR HEEA060007Exhaust Stack · crackedEXHAUST STACK CRACKED.Jan 15, 1999 · N457PH · Bell 407 · Engine Collector/Tailpipe/NozzleSDR HEEA060006Universal · wornUNIVERSAL HAS WORN BEARINGS.Jan 15, 1999 · N141MA · Bell 407 · Main Rotor Drive SystemSDR HEEA060005Tank · crackedTANK ASSEMBLY CRACKED.Jan 15, 1999 · N612PH · Bell 407 · Engine Oil Storage (Airframe Furnished)SDR HEEA060004Indicator · malfunctionedOAT INDICATOR GIVES WRONG TEMPERATURE.Jan 14, 1999 · N612PH · Bell 407 · Independent InstrumentsSDR HEEA060003Universal · wornUNIVERSAL HAS WORN BEARINGS.Jan 14, 1999 · N407PH · Bell 407 · Main Rotor Drive SystemSDR HEEA060002Disk Coupling · brokenBROKEN DISC ON TAIL ROTOR DRIVE.Jan 14, 1999 · N405PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA060001Universal · wornUNIVERSAL HAS WORN BEARINGS.Jan 14, 1999 · N437PH · Bell 407 · Main Rotor Drive SystemSDR HEEA060000Float Bag · leakingFLOAT BAG LEAKING.Jan 14, 1999 · N510PH · Bell 407 · Emergency Flotation SectionSDR HEEA059999Bearing · wornTAIL ROTOR BEARING WORN.Jan 14, 1999 · N407PH · Bell 407 · Tail Rotor BladesSDR HEEA059998Indicator · inaccurateAIRSPEED INDICATOR READS 5 KNOTS FAST.Jan 14, 1999 · N57416 · Bell 407 · Airspeed/Mach IndicatorSDR HEEA059995Universal · wornUNIVERSAL HAS WORN BEARINGS.Jan 14, 1999 · N437PH · Bell 407 · Main Rotor Drive SystemSDR HEEA059991Spring · wornAFT BEARING IS UNSTAKED.Jan 14, 1999 · N427PH · Bell 407 · Main Rotor SystemSDR HEEA059990Transmitter · failedTORQUE TRANSMITTER MAKES GAUGE SHUT OFF.Jan 14, 1999 · N510PH · Bell 407 · Main Rotor Indicating SystemSDR HEEA059988Line · leakingOIL TUBE HAS PIN HOLE NEXT TO NUT.Jan 14, 1999 · N407PH · Bell 407 · Engine Oil Distribution (Airframe Furnished)SDR HEEA059987Starter · malfunctonedSTARTER WILL NOT MOTOR AND GENERATOR LIGHT CAME ON IN-FLIGHT. INSPECTED BY ACCESSORY OVERHAUL SHOP AND FOUND BRUSHES EXCESSIVELY WORN AND COMMUTATOR PITTED AND SCARRED. OVERHAULED AND RETURNED TO SERVICE.Jan 14, 1999 · N8595X · Bell 407 · Starter-GeneratorSDR 99ZZZX441Angle · crackedDURING DAILY INSPECTION FOUND CRACK IN BEND RADIUS.Jan 1, 1999 · N497AL · Bell 407 · Horizontal Stabilizer StructureSDR HEEA059941Disk Coupling · crackedDISK COUPLING CRACKED.Dec 29, 1998 · N722PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA059940Disk Coupling · crackedDISK COUPLING CRACKED.Dec 29, 1998 · N721PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA059939Link Assy · frozenLINK ASSEMBLY BEARING FROZEN.Dec 29, 1998 · N721PH · Bell 407 · Tail Rotor Control SystemSDR HEEA059938Housing · crackedBLOWER HOUSING CRACKED.Dec 29, 1998 · N437PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA059937Housing · crackedBLOWER HOUSING CRACKED.Dec 29, 1998 · N407MM · Bell 407 · Tail Rotor Drive ShaftSDR HEEA059936Duct · crackedOIL COOLER DUCT CRACKED.Dec 29, 1998 · N407MM · Bell 407 · Engine Oil CoolerSDR HEEA059935Angle · crackedFUSELAGE ANGLE CRACKED.Dec 29, 1998 · N405PH · Bell 407 · Fuselage Miscellaneous StructureSDR HEEA059934Bulkhead · crackedBULKHEAD CRACKED.Dec 29, 1998 · N405PH · Bell 407 · Fuselage Main, BulkheadSDR HEEA059933Disk Coupling · crackedDISK COUPLING CRACKED.Dec 29, 1998 · N722PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA059932Bearing · wornTAIL ROTOR HAS WORN FEATHERING BEARINGS.Dec 29, 1998 · N447PH · Bell 407 · Tail Rotor HeadSDR HEEA059931Bearing · roughTAIL ROTOR BEARINGS ROUGH. SERIAL NUMBERS REMOVED ARE A98-0445 AND A98-0506.Dec 29, 1998 · N8595X · Bell 407 · Tail Rotor HeadSDR HEEA059930Disk Coupling · crackedDISK COUPLING CRACKED.Dec 29, 1998 · N721PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA059929Universal · wornMAIN ROTOR DRIVE HAS EXCESSIVE AXIAL PLAY.Dec 29, 1998 · N408PH · Bell 407 · Main Rotor Drive SystemSDR HEEA059928Transmitter · malfunctionedOIL PRESSURE LIGHT DOESN'T COME ON AT SHUTDOWN.Dec 29, 1998 · N408PH · Bell 407 · Rotor Drive Indicating SystemSDR HEEA059927Valve · failedSHUT-OFF VALVE TRIPS CIRCUIT BREAKER.Dec 29, 1998 · N57416 · Bell 407 · Fuel Selector/Shut-Off ValveSDR 99ZZZX407Angle · crackedDURING DAILY INSPECTION, FOUND CRACK IN BEND RADIUS.Dec 28, 1998 · N547AL · Bell 407 · Horizontal Stabilizer, Plate/SkinSDR 99ZZZX414Bolt · stretchedUPON DISASSEMBLY OF ENGINE FOR METAL, CHECKED BOLT TIGHTNESS BY MOVING COVER AND BODY ASSY. ACTUAL TORQUE ON BOLTS WAS ONLY 15 INCHES/POUNDS. THREE EACH BLEED VALVE COVER BOLTS WERE NOT TORQUED TO SPECS FROM FACTORY OR BOLTS ARE STRETCHING AFTER ASSEMBLY ANDDec 23, 1998 · N537AL · Bell 407 · Compressor Bleed ValveSDR 99ZZZX362Indicator · damagedINDICATOR DAMAGED. REPLACED WITH NEW GAUGE FROM BELL HELICOPTER.Dec 23, 1998 · N10EW · Bell 407 · Engine Oil PressureSDR HEEA059894Air Deflector · crackedTOP CORNER OF PLASTIC AIR DEFLECTOR BREAKING OFF WHERE BOLT HOLE IS. THE KNURL NUT TIGHTENS UP WHEN DEFLECTOR IS PUSHED OUT, WHEN TRYING TO STOW DEFLECTOR, YOU CANNOT LOOSEN THE KNURL NUT BY HAND. THEREFORE, THE CUSTOMER PULLS ON DEFLECTOR BREAKINGTHE TOP. Dec 22, 1998 · N8595X · Bell 407 · Fuselage Miscellaneous StructureSDR 99ZZZX416Line · cloggedUPON DISASSEMBLY OF GEARBOX, FOUND EXCESSIVE AMOUNTS OF SPLIT LINE SEALANT ON SPLIT LINE. NOTE: BEFORE DISASSEMBLY, FOUND ALOT OF SEALANT ALONG SPLIT LINE, OUTSIDE OF GEARBOX. UPON INSPECTION OF GEARBOX PARTS, FOUND SCAVENGE OIL TRANSFER TUBE NR 23004230 BLDec 22, 1998 · N537AL · Bell 407 · Turbine Engine Reduction GearSDR 99ZZZX408Bearing · galledUPON INSPECTION OF BEARING (AFT) PTO GEAR FOUND WITH EXCESSIVE GALLING ON ONE BALL BEARING. SUBMITTER STATED POSSIBLE CAUSE FOR BEARING GALLING UNKNOWN.Dec 22, 1998 · N537AL · Bell 407 · Turbine Engine Reduction GearSDR HEEA059896Brushes · wornSTARTER/GENERATOR HAD EXCESSIVELY WORN BRUSHES. REPAIRED.Dec 21, 1998 · N407PH · Bell 407 · Starter-GeneratorSDR 99ZZZX415Gear · galledENGINE WAS REMOVED FOR METAL CHIPS ON UPPER AND LOWER CHIP PLUGS. UPON INSPECTION OF GEARBOX PARTS, FOUND PINION GEAR GALLING AND TORQUE METER GEAR SPALLING. NOTE: METAL CONTAMINATION CAUSED DAMAGE TO OTHER PARTS IN GEARBOX. SUBMITTER SUGGESTED IMPROPER MEDec 18, 1998 · N537AL · Bell 407 · Turbine Engine Reduction GearSDR 99ZZZX411Journal · making metalUPON DISASSEMBLY OF GEARBOX, TORQUE METER SUPPORT JOURNAL WAS FOUND TO HAVE MAGNESIUM SLIVERS IN JOURNAL BORE. UPON FINDING MAGNESIUM SLIVERS IN TORQUE METER JOURNAL BORE, MEASURED JOURNAL AND FOUND IT TO BE OVER MFG SPECS 2.485 INCHES (MFG MAX LIMIT 2.480 INDec 11, 1998 · N537AL · Bell 407 · Turbine Engine Reduction GearSDR 99ZZZX48Disc Pack · damagedDURING 25-HOUR INSPECTION, FOUND GAP BETWEEN THE NR 1 DISC (MOST FORWARD) AND NR 2 DISC BEYOND .015 INCH. (THE NR 1 DISC IS THE ONE WITH THE PART NUMBERS SHOWING).Dec 6, 1998 · N487AL · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0016870Blade · damagedT/R BLADE - UNABLE TO KEEP BALANCED.Dec 4, 1998 · N8595X · Bell 407 · Tail Rotor BladesSDR HEEA0016869Hub · damagedT/R HUB ASSEMBLY UNABLE TO KEEP BALANCED.Dec 4, 1998 · N8595X · Bell 407 · Tail Rotor HeadSDR HEEA0016868Duct · crackedDUCT CRACKED.Dec 4, 1998 · N405PH · Bell 407 · Engine Collector/Tailpipe/NozzleSDR HEEA0016867Cover · tornFRONT END OF FLOAT COVER TORN.Dec 4, 1998 · N141MA · Bell 407 · Emergency Flotation SectionSDR 99ZZZX49Gear · galledDISASSEMBLED, CLEANED AND INSPECTED AND FOUND EXCESSIVE GALLING ON PINION AND T/M GEARS. PINION GEAR HAD EXCESSIVE GALLING ON GEAR TEETH POSSIBLY DUE TO IMPROPER MESHING OF T/M AND PINION GEARS. SECONDARY DAMAGE: T/M GEAR P/N 6893673 S/N NN145514, TT: 648.Dec 3, 1998 · N477AL · Bell 407 · Main Rotor GearboxSDR HEEA0016865Encoder · damagedEXCESSIVE CASE LEAKAGE IN ALTIMETER.Dec 2, 1998 · N427PH · Bell 407 · Altimeter, Barometric/EncoderSDR HEEA0016864Ics · malfunctionedPASSENGER NR 5 NO SIDETONE OR RECEIVE.Dec 2, 1998 · N720PH · Bell 407 · Audio Integrating System
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