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 HEEA0013902Carbon Seal · leakingFREEWHEEL CARBON SEAL LEAKING. (2500 HOUR OVERHAUL DUE)Apr 15, 1998 · N407PH · Bell 407 · Engine/Transmission CouplingSDR HEEA0013881Link Assembly · wornEXCESSIVE PLAY ON AIRCRAFT AND WORN BUSHINGS.Apr 8, 1998 · N417PH · Bell 407 · Main Rotor Mast/SwashplateSDR HEEA0013880Link Assembly · wornEXCESSIVE PLAY ON AIRCRAFT AND WORN BUSHINGS.Apr 8, 1998 · N417PH · Bell 407 · Main Rotor Mast/SwashplateSDR HEEA0013879Lever Assembly · wornEXCESSIVE PLAY ON AIRCRAFT AND WORN BUSHINGS.Apr 8, 1998 · N417PH · Bell 407 · Main Rotor Mast/SwashplateSDR HEEA0013878Lever Assembly · wornEXCESSIVE PLAY ON AIRCRAFT AND WORN BUSHINGS.Apr 8, 1998 · N417PH · Bell 407 · Main Rotor Mast/SwashplateSDR HEEA0013877Hub Set · wornEXCESSIVE PLAY ON AIRCRAFT AND WORN BUSHINGS.Apr 8, 1998 · N417PH · Bell 407 · Main Rotor Mast/SwashplateSDR HEEA0013876Gimbal Ring · wornEXCESSIVE PLAY ON AIRCRAFT AND WORN BUSHINGS.Apr 8, 1998 · N417PH · Bell 407 · Main Rotor Mast/SwashplateSDR HEEA0013875Cone Set · defectiveCONE SET TEFLON LINER COMING OFF.Apr 8, 1998 · N141MA · Bell 407 · Main Rotor HeadSDR HEEA0013861Gearbox · leakingINPUT AND OUTPUT SEALS LEAKING.Apr 6, 1998 · N427PH · Bell 407 · Tail Rotor GearboxSDR HEEA0013858Fan Shaft · defectiveFAN SHAFT HAS ROUGH BEARINGS.Apr 6, 1998 · N467PH · Bell 407 · Rotorcraft Cooling Fan SystemSDR HEEA0013857Freewheel Unit · leakingFREEWHEEL UNIT FORWARD SEAL LEAKING.Apr 6, 1998 · N1167G · Bell 407 · Engine/Transmission CouplingSDR HEEA0013856Hub · worn4 EACH GRIPS P/N 406-010-108-109, S/N A3310, A3331, A3324, A3312 (ALL TOTAL TIME 1234:35) DUE RETIREMENT. 1 EACH LOWER CONE SEAT P/N 407-010-107-101, S/N A80 (TOTAL TIME 1234:35) DUE RETIREMENT. PARTS AND LABOR WILL BE INVOICED...WO#9800197-99.Apr 6, 1998 · N407MM · Bell 407 · Main Rotor HeadSDR HEEA0013855Bearing · roughROUGH BEARINGS. SERIAL NUMBERS REMOVED ARE C97-2195 AND C97-2206. PARTS AND LABOR WILL BE INVOICED...WO#9800152-99.Apr 6, 1998 · N406PH · Bell 407 · Tail Rotor Drive SystemSDR HEEA0013854Bearing · wornBEARINGS WORN. SCRAPPED BEARINGS.Apr 6, 1998 · N467PH · Bell 407 · Tail Rotor HeadSDR HEEA0013853Bearing · roughROUGH BEARINGS. SERIAL NUMBERS REMOVED ARE K97-0737 AND A98-0536.Apr 6, 1998 · N447PH · Bell 407 · Tail Rotor Drive SystemSDR HEEA0013852Freewheel Unit · leakingSEALS LEAKING AND WORN SEAL SLEEVE. PARTS AND LABOR WILL BE INVOICED ON PM#2497. REPLACEMENT SEAL P/N 406-340-102-101 RECEIVED ON 3-11-98 AGAINST OUR PO#407-285, INVOICE# I100514582. REPLACEMENT SEAL P/N 214-040-841-101 AND SLEEVE P/N 214-040-814-103 WERE REApr 6, 1998 · N417PH · Bell 407 · Engine/Transmission CouplingSDR 98ZZZX2011Disc · corrodedINSPECTED HELICOPTER PER AD 97-22-15. FOUND ONE T/R DRIVE DISC BEYOND DAMAGE LIMITS (CORROSION). REPLACED PART.Apr 6, 1998 · N96335 · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0013757Starter · failedSTARTER TURNS SLOWLY AND CHATTERS. OVERHAULED BY ACCESSORY OVERHAUL SHOP DUE TO ALL FOUR BOTTOM BRUSH LEADS SEPARATING FROM BRUSHES, BRUSHES BURNT AND COMMUTATOR WAS SEVERELY PITTED.Apr 2, 1998 · N403PH · Bell 407 · Starter-GeneratorSDR 98ZZZX2012Stack · crackedFOUND EXHAUST STACK CRACKED NEXT TO WELD. REPLACED STACK.Apr 2, 1998 · N96335 · Bell 407 · Engine Collector/Tailpipe/NozzleSDR 98ZZZX2009Stack · crackedFOUND EXHAUST STACK CRACKED NEXT TO WELD. REPLACED STACK.Apr 2, 1998 · N1116H · Bell 407 · Engine Collector/Tailpipe/NozzleSDR HEEA0013677Bearing · looseON POST FLIGHT FOUND CLICKING NOISE EMINATING FROM TRUNNION CLAMP RING AREA. SUSPECT TRUNNION BEARING LOOSE IN YOKE, CAUSING NOISE WHEN BLADES ARE FLAPPED. MORE NOTICEABLE AFTER FLIGHT WHEN WARM, NOISE DIMINISHES AS YOKE COOLS. REPAIRED AND INSPECTED BY OVERApr 1, 1998 · N427PH · Bell 407 · Tail Rotor HeadSDR HEEA0013676Carbon Seal · leakingCARBON SEAL LEAKING.Apr 1, 1998 · N427PH · Bell 407 · Engine/Transmission CouplingSDR HEEA0013675Bearing · roughROUGH BEARINGS. SERIAL NUMBERS REMOVED ARE C97-1825 AND C97-1883.Apr 1, 1998 · N407MM · Bell 407 · Tail Rotor Drive SystemSDR HEEA0013674Bearing · unknownROUGH BEARINGS. SERIAL NUMBERS REMOVED ARE K96-2176 AND K96-2157.Apr 1, 1998 · N510PH · Bell 407 · Tail Rotor Drive ShaftSDR 99ZZZX40Disk Pack · crackedDURING C/W 25-HOUR AD 97-24-17, PART A, B, AND E, FOUND ONE LAMINATE ON AFT SIDE OF NR 7 DISK PACK, P/N 406-040-340-101, CRACKED.Mar 30, 1998 · N417AL · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0013578Shaft · damagedT/R AFT SHAFT IS DAMAGED.Mar 26, 1998 · N447PH · Bell 407 · Tail Rotor Drive ShaftSDR 98ZZZX2014Combustion Case · crackedHIGHER THAN NORMAL MGT INDICATION BY PILOT WAS REPORTED. INSPECTED AND PERFORMED TEST OF MEASURED GAS TEMPERATURE SYSTEM. NO ANOMALLY OBSERVED. UPON FURTHER INSPECTION FOUND SEAM WELDS AROUND FUEL NOZZLE BOSS CRACKED ALLOWING COOLING AIR TO ESCAPE.Mar 24, 1998 · N58236 · Bell 407 · Turbine Engine Combustion SectionSDR HEEA0013410Indicator · failedNO PRESSURE INDICATION POWER. XMSN OIL TEMP/PRESSMar 18, 1998 · N467PH · Bell 407 · Main Rotor GearboxSDR HEEA0013358Pressure Switch · failedTRANS. PRESS CAUTION LIGHT WILL NOT ILLUMINATE.Mar 17, 1998 · N510PH · Bell 407 · Main Rotor GearboxSDR HEEA0013356Light Assy · failedLIGHT STAYS ON.Mar 17, 1998 · N510PH · Bell 407 · Flight Compartment LightingSDR HEEA0013350Starter · failedSTARTER TURNED SLOWLY AND CHATTERED. INSPECTED BY ACCESSORY OVERHAUL SHOP AND FOUND ALL FOUR BOTTOM BRUSHES BROKEN AND LEADS SEPARATED FROM BRUSHES AND COMMUTATOR WAS EXCESSIVELY PITTED. OVERHAULED STARTER GENERATOR AND RETURNED TO SERVICE.Mar 17, 1998 · N403PH · Bell 407 · Starter-GeneratorSDR 98ZZZX1270Disc Pack · damagedINSPECTING HELICOPTER PER AD 97-22-15. FOUND 2 EACH TAIL ROTOR DRIVE DISC BOLTS LOOSE AND DISC PACK BEYOND DAMAGE LIMIT. TT 789.0 HOURS.Mar 5, 1998 · N58236 · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0013194Transponder · failedKT76 TRANSCEIVER DRAWS EXCESSIVE CURRENT.Mar 4, 1998 · Bell 407 · ATC Transponder SystemSDR HEEA0013119Transponder · defectiveBENCH CHECK NEEDED. REPLACED WEAK V301 PHOTODETECTOR, DETERIORATED R477 RESISTOR, INSTALLED MISSING IDENT PUSH BUTTON AND INSTALLED HEAT SINK FOR Q415. ADJUSTED AS NEEDED AND BENCH CHECK GOOD.Mar 3, 1998 · N406PH · Bell 407 · ATC Transponder SystemSDR HEEA0013109Transponder · failedTRANSPONDER WILL NOT IDENT AND WILL NOT TEST. PERFORMED PRELIMINARY INSPECTION AND FOUND SWITCH BOARD INTERMITTENT. REPLACED SWITCH BOARD. ALSO FOUND PHOTOCELL NOT DIMMING PROPERLY. REPLACED PHOTOCELL. UNIT BENCH CHECK GOOD.Mar 3, 1998 · N406PH · Bell 407 · ATC Transponder SystemSDR 98ZZZX1253Disc Pack · crackedDURING 25-HOUR INPSECTION, FOUND ONE DISC IN PACK ASSEMBLY CRACKED. IT WAS THE NR 1 DISC IN THE PACK.Feb 12, 1998 · N437AL · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0013029Disk Coupling · crackedDISC CRACKED.Feb 11, 1998 · N407PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0013028Bearing · roughROUGH BEARING. SERIAL NUMBERS REMOVED E96-0002 AND K96-2152.Feb 11, 1998 · N1167G · Bell 407 · Rotorcraft Cooling Fan SystemSDR HEEA0013027Transmitter · inoperativeOIL TRANSMITTER INOPERATIVE.Feb 11, 1998 · N57416 · Bell 407 · Main Rotor GearboxSDR HEEA0013025Bearing · wornWORN SPHERICAL BEARING.Feb 11, 1998 · N141MA · Bell 407 · Main Rotor Drive SystemSDR HEEA0012997Dual Tach · failedDUAL TACH STAYS ON ZERO ON START UP.Feb 10, 1998 · Bell 407 · Engine RPM Indicating SystemSDR HEEA0012985Indicator · failedFUEL QTY INDICATOR GOES INOPERATIVE AT TIMES.Feb 10, 1998 · N57416 · Bell 407 · Fuel Quantity IndicatorSDR HEEA0012982Frahm Assy · defectiveM/R VIBRATION.Feb 10, 1998 · N417PH · Bell 407 · Main Rotor HeadSDR HEEA0012893Cover · defectiveFLOAT COVER MISSING END PIECE.Feb 9, 1998 · N437PH · Bell 407 · Emergency Flotation SectionSDR HEEA0012890Cylinder · failedCYL ASSY WILL NOT HOLD PRESSURE, BLEEDS DOWN.Feb 9, 1998 · N427PH · Bell 407 · Main Rotor BrakeSDR HEEA0012889Fuel Filter · leakingFUEL FILTER LEAKING.Feb 9, 1998 · N141MA · Bell 407 · Aircraft Fuel Filter/StrainerSDR HEEA0012883Torque Transmitt · failedTORQUE SLOWLY WENT UP, THEN FELL TO ZERO.Feb 9, 1998 · N406PH · Bell 407 · Main Rotor Indicating SystemSDR HEEA0012882Indicator · failedWHILE HOVERING AT 68-71% TORQUE, TORQUE GAUGE STARTED INCREASING UNTIL REACHING FULL SCALE READING AND THEN WENT TO 0%.Feb 9, 1998 · N406PH · Bell 407 · Engine BMEP/Torque IndicatingSDR HEEA0012881Stop · wornSTOP WORN BEYOND LIMITS.Feb 9, 1998 · N407PH · Bell 407 · Main Rotor HeadSDR HEEA0012880Disk Coupling · scratchedT/R DRIVE DISC SCRATCHED.Feb 9, 1998 · N141MA · Bell 407 · Tail Rotor Drive Shaft
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