N477AL

Service difficulty reports not matched to an aircraft · 25

They name N477AL, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. Newest first.

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 n_number = 'N477AL' AND registry_match IS NULL
  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 ALGA105176Pitch Link · ratchetingRATCHETY AND ROUGH / REPLACER WITH NEW BY FIELD MAINTENANCE.Jul 25, 2005 · N477AL · Bell 407 · Main Rotor HeadSDR ALGA087748Universal · roughUNIVERSAL BEARING WORN, RATCHETY, ROUGH AND BINDING. REMOVED AND REPLACED.Jun 24, 2003 · N477AL · Bell 407 · Main Rotor HeadSDR ALGA086418Universal · wornEXCESSIVE AXIAL PLAY.May 15, 2003 · N477AL · Bell 407 · Main Rotor GearboxSDR ALGA084685Bearing · spalledFOUND NR 4 BEARING SEPARATOR BROKEN IN PIECES. BEARING FAILURE CAUSED METAL IN OIL.Feb 21, 2003 · N477AL · Bell 407 · Accessory GearboxesSDR ALGA084684Bearing · spalledFOUND #3 BEARING SEPARATOR MISSING. BEARING FAILURE CAUSED METAL IN OIL.Feb 21, 2003 · N477AL · Bell 407 · Accessory GearboxesSDR ALGA084683Pinion Gear · brokenFOUND PINION GEARS HAD BROKEN GEAR TEETH CAUSING MASSIVE METAL IN OIL. THIS IS A REOCCURRING EVENT.Feb 21, 2003 · N477AL · Bell 407 · Accessory GearboxesSDR ALG2003F00025Fadec · failedDURING FLIGHT, FIVE MILES FROM DESTINATION PLATFORM, ENGINE CHIP LIGHT ILLUMINATED, DURING FINAL APPROACH TO THE PLATFORM APPROXIMATELY 75 TO 100 FEET THE FADEC FAULT, FADEC MANUAL, FADEC FAIL, RESTART FAULT AND AUTO RELIGHT ILLUMINATED WITH FADEC FAIL AUDIO AFeb 10, 2003 · N477AL · Bell 407 · Fuel Controlling SystemSDR ALG2002F00022Crosstube · corrodedDAILY SERVICE CHECK, FOUND PITTING CORROSION ON CROSSTUBE AT STRAP ATTACH POINT. PROBABLE CAUSE IS WATER ENTRAPMENT. SCRAP CROSSTUBE.Feb 4, 2002 · N477AL · Bell 407 · Main Landing Gear Strut/Axle/TruckSDR ALG2002F00021Crosstube · corrodedDURING DAILY INSPECTION, FOUND PITTING CORROSION ON CROSSTUBE .2500 INCH DEEP .5000 INCH ROUND. SCRAPPED CROSSTUBE. PROBABLE CAUSE IS WATER ENTRAPMENT. ALMOST UNDETECTABLE WITH ALL PARTS INSTALLED.Feb 4, 2002 · N477AL · Bell 407 · Main Landing Gear Strut/Axle/TruckSDR ALG2001F00011Bearing · separatedOFFSHORE PLATFORM BY PILOT. ELASTOMERIC SEPARATED FROM SPINDLE.Jun 6, 2001 · N477AL · Bell 407 · Main Rotor HeadSDR 20000804SH021Duct · crackedUPON DAILY INSPECTION, CRACKS IN CORNERS CAUSED BY INHERENT VIBRATIONS. (X)Jul 13, 2000 · N477AL · Bell 407 · Rotorcraft Cooling Fan SystemSDR 20000804SH022Pinion Gear · galledPINION GEAR HAS EXCESSIVE GALLING ON GEAR TEETH, POSSIBLY DUE TO EXCESSIVE TORQUE ON ENGINE, GEAR CANNOT SUSTAIN LOAD. (X)Feb 18, 2000 · N477AL · Bell 407 · Turbine Engine Reduction GearSDR 2000ZZZX12Housing · crackedDURING DAILY INSPECTION, FOUND CRACKED BLOWER HOUSING.Dec 1, 1999 · N477AL · Bell 407 · Rotorcraft Cooling Fan SystemSDR 99ZZZX4595Housing · crackedDURING DAILY INSPECTION, FOUND CRACKED BLOWER HOUSING.Oct 28, 1999 · N477AL · Bell 407 · Rotorcraft Cooling Fan SystemSDR 99ZZZX4587Frame · crackedROUTINE INSPECTION. FRAME AND ANGLE CRACKED BEYOND LIMITS.Oct 26, 1999 · N477AL · Bell 407 · Fuselage Main, FrameSDR 99ZZZX4591Housing · crackedDURING DAILY INPSECTION, FOUND CRACKED BLOWER HOUSING.Oct 11, 1999 · N477AL · Bell 407 · Rotorcraft Cooling Fan SystemSDR 99ZZZX3343Bearing · roughFOUND HOUSING 206-061-432-116 CRACKED AND WORKING RIVETS. FOUND 2 EACH BEARINGS 407-340-339-103 ROUGH.Jul 18, 1999 · N477AL · Bell 407 · Tail Rotor Drive SystemSDR 99ZZZX3342Housing · crackedFOUND HOUSING 206-061-432-116 CRACKED AND WORKING RIVETS. FOUND 2 EACH BEARINGS 407-340-339-103 ROUGH.Jul 18, 1999 · N477AL · Bell 407 · Tail Rotor Drive SystemSDR 99ZZZX1242Relay · failedDURING FIRST TURNING ON OF BATTERY IN MORNING, LANDING LIGHT UPPER WAS ON AND WOULD NOT TURN OFF BY SWITCH. THIS IS THE SECOND RELAY INSTALLED FOR THE UPPER LANDING LIGHT ON THIS AIRCRAFT. TOTAL TIME OF THE RELAY IS UNKNOWN, BUT IS ALSO A PROBLEM FOR OTHER 4Mar 4, 1999 · N477AL · Bell 407 · Main Landing GearSDR 99ZZZX1241Input Shaft · wornFREE WHEELING UNIT REMOVED FOR 2,500-HOUR OVERHAUL. FOUND AT TEAR-DOWN INSPECTION. INPUT SPLINES WORN BEYOND LIMITS. SHAFT SCRAPPED.Mar 1, 1999 · N477AL · Bell 407 · Engine/Transmission CouplingSDR 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 98ZZZX3360Seal · failedENGINE WAS REMOVED FOR MAKING METAL. REMOVED NR 5 BEARING AND FOUND METAL IN BEARING CAVITY. REMOVED NR 5 BEARING FOR INSPECTION AND FOUND METAL SLIVERS UNDER NR 5 BEARING NUT AND CAP LOCK WASHER.Jul 2, 1998 · N477AL · Bell 407 · Turbine SectionSDR 98ZZZX3355Disc · crackedSCHEDULED INSPECTION FOUND T/R DISC PACK CRACKED.Jul 2, 1998 · N477AL · Bell 407 · Tail Rotor Drive ShaftSDR 98ZZZX2532Rotating Seal · making metalENGINE WAS REMOVED FOR MAKING METAL. REMOVED NR 5 BEARING AND FOUND METAL IN BEARING CAVITY. REMOVED NR 5 BEARING FOR INSPECTION AND FOUND METAL SLIVERS UNDER NR 5 BEARING NUT AND CAP LOCK WASHER.Jun 8, 1998 · N477AL · Bell 407 · Turbine SectionSDR 98ZZZX2531Pinion Gear · galledUPON DISASSEMBLY AND INSPECTION OF PARTS, FOUND EXCESSIVE GALLING ON PINION GEAR AND SPALLING ON T/M GEAR. PINION GEAR HAD EXCESSIVE GALLING ON GEAR TEETH. POSSIBLY DUE TO IMPROPER MESHING OF GEARS. SECONDARY DAMAGE. T/M GEAR PN 689367. SN NN144843, TT: Jun 8, 1998 · N477AL · Bell 407 · Turbine Engine Reduction Gear
Back to N477AL