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 R7MA33660Gps · inoperativeUNIT INOPERATIVE. SKIPS PAGE 3. UPDATE WITH MOST RECENT SOFTWARE PATCHES. REPLACED WITH NEW UNIT CORRECTED PROBLEM.Aug 27, 2001 · N407SJ · Bell 407 · Global Positioning SystemSDR 2001F00610Disc Pack · crackedDURING 25 AD INSPECTION, THE COUPLING IS CRACKED, PROBABLE CAUSE IS EXCESSIVE RIGIDITY IN THE BEARING MOUNT SYSTEM. ALLOW TAILROTOR DRIVESHAFT TO FLOAT SO DISC PACKS DO NOT FLEX AS MUCH OR AS OFTEN. (M)Aug 27, 2001 · N1116H · Bell 407 · Tail Rotor Drive ShaftSDR HEEA075607Connector · corrodedCANNON PLUG CORRODED. REPEATED PROBLEM WITH CANNON PLUG, SENDING IN FOR EVALUATION FOR POSSIBLE MFG DEFECT.Aug 27, 2001 · N405PH · Bell 407 · Exterior LightingSDR HEEA075605Pressure Switch · failedNO LIGHT WHEN PUMP IS OFF.Aug 27, 2001 · N510PH · Bell 407 · Fuel Pressure IndicatorSDR HEEA075598Pump · leakingINTERNAL SEAL LEAKING.Aug 27, 2001 · N407PH · Bell 407 · Main Rotor GearboxSDR 2001F00617Bearing · disintegratedAFTER 2 HOURS OF FLIGHT AIRCRAFT EXPERIENCED INTERMITTENT MEDIUM FREQUENCY VIBRATION SUBSEQUENT INSPECTION REVEALED THE BEARING FAILURE OF NR 2 TAILROTOR DRIVESHAFT. FORWARD BEARING ON SHAFT DISINTEGRATED DUE TO LOSS OF GREASE. BEARING SCRAPPED AND C/W ASB 4Aug 24, 2001 · N457AL · Bell 407 · Tail Rotor Drive ShaftSDR 2001F00613Bearing · disintegratedDURING DAILY, BEARING ON THE SHAFT WAS DISINTEGRATED DUE TO LOSS OF GREASE. BEARING WAS SCRAPPED AND C/W ASB 407-01-44. (M)Aug 24, 2001 · N587AL · Bell 407 · Tail Rotor Drive ShaftSDR 2001F00612Disc Pack · crackedDURING 25 HOUR AD INSPECTION, THE COUPLING IS CRACKED, PROBABLE CAUSE IS EXCESSIVE RIGIDITY IN THE BEARING MOUNT SYSTEM. ALLOW TAILROTOR DRIVESHAFT TO FLOAT SO DISC PACKS DO NOT FLEX AS MUCH OR AS OFTEN. (M)Aug 23, 2001 · N547AL · Bell 407 · Tail Rotor Drive ShaftSDR 2001F00611Disc Pack · crackedDAILY INSPECTION OF TAILROTOR DRIVESHAFT BEARINGS AND FOUND CRACKED DISC PACK. THE COUPLING IS CRACKED, PROBABLE CAUSE IS EXCESSIVE RIGIDITY IN THE BEARING MOUNT SYSTEM. ALLOW TAILROTOR DRIVESHAFT TO FLOAT SO DISC PACKS DO NOT FLEX AS MUCH OR AS OFTEN. (M)Aug 22, 2001 · N437AL · Bell 407 · Tail Rotor Drive ShaftSDR 2001F00609Disc Pack · crackedDURING 25 HOUR AD INSPECTION, COUPLING IS CRACKED, PROBABLE CAUSE IS EXCESSIVE RIGIDITY IN THE BEARING MOUNT SYSTEMS. ALLOW TAILROTOR DRIVESHAFT TO FLOAT SO DISC PACKS DO NOT FLEX AS MUCH OR AS OFTEN. (M)Aug 22, 2001 · N1116H · Bell 407 · Tail Rotor Drive ShaftSDR 2001F00606Disc Pack · crackedDAILY INSPECTION, COUPLING IS CRACKED, PROBABLE CAUSE IS EXCESSIVE RIGIDITY IN THE BEARING MOUNT SYSTEM. ALLOW TAILROTOR DRIVESHAFT TO FLOAT SO DISC PACKS DO NOT FLEX AS MUCH OR AS OFTEN. (M)Aug 22, 2001 · N537AL · Bell 407 · Tail Rotor Drive ShaftSDR 2001F00618Panel · crackedUPON DAILY, OIL COOLER DECK P/N IS CRACKED IN FORWARD SIDE AT STATION 192-204. (M)Aug 21, 2001 · N527AL · Bell 407 · Fuselage Miscellaneous StructureSDR 2001F00619Panel · crackedUPON DAILY, OIL COOLER DECK P/N 407-030-734-103A IS CRACKED ON FORWARD SIDE AT STATION 192-204. (M)Aug 20, 2001 · N1116H · Bell 407 · Fuselage Miscellaneous StructureSDR 2001F00615Disc Pack · crackedDURING 25 HOUR INSPECTION, COUPLING IS CRACKED, PROBABLE CAUSE IS EXCESSIVE RIGIDITY IN THE BEARING MOUNT SYSTEM. ALLOW TAILROTOR DRIVESHAFT TO FLOAT SO DISC PACKS DO NOT FLEX AS MUCH OR AS OFTEN. (M)Aug 20, 2001 · N627AL · Bell 407 · Tail Rotor Drive ShaftSDR 2001F00614Disc Pack · crackedDAILY INSPECTION OF TAILROTOR DRIVESHAFT BEARINGS FOR OVERHEATING. NR 4 TAILROTOR DISC, (ONE) FORWARD IS CRACKED, PROBABLE CAUSE IS EXCESSIVE RIGIDITY IN THE BEARING MOUNT SYSTEM. ALLOW THE TAILROTOR DRIVESHAFT TO FLOAT SO DISC PACKS DO NOT FLEX AS MUCH OR AAug 20, 2001 · N697AL · Bell 407 · Tail Rotor Drive ShaftSDR 2001F00571Gyro · faultyFLAG APPEARED IN DIRECTIONAL GYRO DURING CLIMB-OUT. CYCLED DIRECTIONAL GYRO SWITCH WAS HOT TO THE TOUCH, 2-3 SECONDS LATER LIGHT SMOKE AND SMELL OF BURNING WAS NOTED. INSPECTED C/B PANEL AND INSTRUMENT PANEL FOR BURNED OR ARCED WIRING. NO DEFECTS NOTED. REAug 19, 2001 · N567AL · Bell 407 · Directional Gyro and Indicating SystemSDR R7MA33681Bleed Valve · leakingLEAKING AIR BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Aug 15, 2001 · N407SJ · Bell 407 · Compressor Bleed ValveSDR R7MA33684Combust Chamber · damagedBURNER DRAW VALVE WAS NOT COATED WITH ANTI-SEIZE FROM THE FACTORY. DURING REMOVAL OF THE VALVE, THREAD DAMAGE OCCURRED. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Aug 15, 2001 · N407SJ · Bell 407 · Turbine Engine Combustion SectionSDR R7MA36679Valve · damagedTHREADS NOT TREATED WITH LOCK-TITE PRIOR TO RE INSTALLATION INTO THE OUTER COMBUSTION CASE, WHICH RESULTED IN THREAD DAMAGE TO THE CASE ITSELF. THE REMOVED VALVE WAS LOST IN SHIPPING. REPLACED WITH NEW UNIT CORRECTED PROBLEM.Aug 15, 2001 · N407SJ · Bell 407 · Turbine Engine Combustion SectionSDR R7MA33663Altimeter · intermittentUNIT OPERATES INTERMITTENTLY. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Aug 15, 2001 · N407SJ · Bell 407 · Altimeter, Barometric/EncoderSDR R7MA33662Gyro · intermittentUNIT OPERATES INTERMITTENTLY. REPLACED WITH NEW UNIT CORRECTED PROBLEM.Aug 15, 2001 · N407SJ · Bell 407 · Attitude Gyro and Indicating SystemSDR 2001F00578Blade · missingTURBINE RECEIVED FROM FIELD FOR HOWLING NOISE. REMOVED COMBUSTION SECTION AND FOUND SULFADATION ON 1ST STAGE WHEEL. WHEEL HAS MISSING AND BROKEN BLADES DUE TO SULPHADATION. (M)Aug 10, 2001 · N687AL · Bell 407 · Turbine SectionSDR 2001F00574Turbine Wheel · corrodedTURBINE RECEIVED FROM FIELD FOR HOWLING NOISE. REMOVED COMBUSTION SECTION AND FOUND SULFADATION ON 1ST STAGE WHEEL. THIS TURBINE HAD A ROLLS ROYCE COMBUSTION LINER. WHEEL HAS MISSING AND BROKEN BLADES DUE TO SULFADATION. (M)Aug 10, 2001 · N687AL · Bell 407 · Turbine SectionSDR 2001F00567Bearing · worn2500 HOUR INSPECTION, REPLACED ELASTOMER SEPARATOR. (M)Aug 7, 2001 · N497AL · Bell 407 · Main Rotor HeadSDR R7MR34249Blower · overheatedBLOWER ASSEMBLY, OVER HEATS CAUSING CIRCUIT BREAKER TO POP. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jul 26, 2001 · N911LN · Bell 407 · Air Distribution FanSDR CA010726027Bearing · noisy(CAN) AFTER NORMAL UNEVENTFUL FLT, PILOT SHUTDOWN A/C&NOTICED NOISE COMING FROM TAIL ROTOR DRIVE TRAINN DURING COAST DOWN. SUBSEQUENT INSP REVEALED THATT HE GREASE EMANATING FROM AFT FAN SHAFT BEARING BLACK WITH METALLICPARTICLES, BEARING ROUGH WHEN ROTATED USJul 26, 2001 · Bell 407 · Tail Rotor Drive ShaftSDR CA010726028Bearing · disintegrated(CAN) SHORTLY AFTER TAKEOFF, ABOUT 400 FT ABOVE GROUND, A/C SOUND & VIBRATION LEVELS SUDDENLY CHANGED FROM NORMAL TO HEAVY VIBRATION THROUGHOUT WHOLE A/C WITH OSCILLATING, DRONING NOSIE. AS WELL, PILOT NOTICED PULSING FEEDBACK SE NSATION FROM ANTITORQUE PEDALSJul 24, 2001 · Bell 407 · Tail Rotor Drive ShaftSDR B1HR719229Yoke · out of toleranceDURING REPAIR OF TAIL ROTOR YOKE, BEARING BORES WERE FOUND TO BE OUT OF ACCEPTABLE LIMITS. YOKE WAS REMOVED AND REPLACED.Jul 17, 2001 · N407AM · Bell 407 · Tail Rotor HeadSDR ALG2001F00021Disc Pack · crackedDURING 25 HOUR INSPECTION, DISC PACK IS CRACKED.Jul 14, 2001 · N1116H · Bell 407 · Tail Rotor Drive ShaftSDR ALG2001F00020Disc Pack · crackedDURING 25 HOUR AD INSPECTION. DISC COUPLING CRACKED.Jul 14, 2001 · N58236 · Bell 407 · Tail Rotor Drive ShaftSDR ALG2001F00016Disc Pack · crackedDURING 25 HOUR AD INSPECTION FOUND DISC PACK CRACKED. RECOMMENDATION TO PREVENT RECURRENCE: ALLOW TAIL ROTOR DRIVE TO FLOAT SO DISC PACKS DO NOT FLEX AS MUCH OR AS OFTEN.Jul 14, 2001 · N547AL · Bell 407 · Tail Rotor Drive ShaftSDR R7MA33725Bearing · wornWORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jul 5, 2001 · N407SJ · Bell 407 · Tail Rotor Drive ShaftSDR R7MA37722Fan · wornWORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jul 5, 2001 · N407SJ · Bell 407 · Tail Rotor Drive ShaftSDR ALG2001F00019Pinion Gear · galledIN FLIGHT, CHIP LIGHT ILLUMINATED. UPON DISASSEMLBLY OF GEARBOX, FOUND EXCESSIVE GALLING ON GEAR TEETH OF PINION GEAR, GEAR TEETH. PINION GEAR EXCESSIVE GALLING DUE TO IMPROPER GEAR TEETH MESHING AND EXCESSIVE LOAD TO TORQUE AREA. INSURE GEAR HARDNESS AND MJun 29, 2001 · N58236 · Bell 407 · Turbine Engine Accessory DriveSDR R7MR33512Indicator · inoperativeUNIT INOPERATIVE UPON INSTALLATION. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jun 22, 2001 · N407SJ · Bell 407 · Engine RPM Indicating SystemSDR R7MR33511Indicator · defectiveUNIT INOPERATIVE. TACH STICKS IN SELF TEST MODE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jun 22, 2001 · N407SJ · Bell 407 · Engine RPM Indicating SystemSDR HEEA073782Bearing · wornWORN. TO BE RETURNED TO VENDOR (J0169927-WA)Jun 20, 2001 · N141MA · Bell 407 · Tail Rotor HeadSDR HEEA073781Bearing · chafedELASTOMER SHEETING AND CHAFING. TO BE RETURNED TO VENDOR (J0169927-WA)Jun 20, 2001 · N141MA · Bell 407 · Tail Rotor HeadSDR HEEA073780Bearing · wornWORN. SERIAL NUMBERS REMOVED ARE F99-2018 AND F99-1690. TO BE RETURNED TO VENDOR (J0166773-WA)Jun 20, 2001 · N499PH · Bell 407 · Main Rotor Drive SystemSDR HEEA073779Shaft · wornWORN SPLINES. TO BE RETURNED TO VENDOR (J0166773-WA)Jun 20, 2001 · N499PH · Bell 407 · Main Rotor Drive SystemSDR HEEA073777Bearing · roughROUGH. SERIAL NUMBERS REMOVED ARE B00-2007 AND B00-2035. TO BE RETURNED TO VENDOR. (J0167662-WA)Jun 20, 2001 · N490PH · Bell 407 · Main Rotor Drive SystemSDR HEEA073776Shaft · wornWORN SPLINES. TO BE RETURNED TO VENDOR. (J0167662-WA)Jun 20, 2001 · N490PH · Bell 407 · Main Rotor Drive SystemSDR HEEA073775Carbon Seal · leakingFREEWHEELING UNIT FORWARD SEAL LEAKING OIL. TO BE RETURNED TO VENDOR. (J0160511-WA)Jun 20, 2001 · N490PH · Bell 407 · Engine/Transmission CouplingSDR HEEA073774Bearing · wornWORN. TO BE RETURNED TO VENDOR. (J0165250-WA)Jun 20, 2001 · N402PH · Bell 407 · Tail Rotor HeadSDR HEEA073773Carbon Seal · wornWORN. TO BE RETURNED TO VENDOR. (J0165492-WA)Jun 20, 2001 · N409PH · Bell 407 · Engine/Transmission CouplingSDR HEEA073772Bearing · wornWORN. TO BE RETURNED TO VENDOR. (J0166791-WA)Jun 20, 2001 · N724PH · Bell 407 · Tail Rotor HeadSDR HEEA073771Bearing · wornWORN. TO BE RETURNED TO VENDOR. (J0168105-WA)Jun 20, 2001 · N719PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA073770Bearing · making metalMETAL. TO BE RETURNED TO VENDOR. (J0167780-WA)Jun 20, 2001 · N499PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA073769Bearing · overheatedOVERHEATED. TO BE RETURNED TO VENDOR. (J0164213-WA)Jun 20, 2001 · N467PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA073768Bearing · vibratesROUGH VIBRATION ON TAILBOOM. TO BE RETURNED TO VENDOR. (J0162310-WA)Jun 20, 2001 · N467PH · Bell 407 · Tail Rotor Drive Shaft
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