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 HEEA0015509Brushes · wornSTARTER HAS WORN BRUSHES, FOUND BRUSHES WERE HANGING UP AND EXCESSIVELY WORN. ALSO FOUND FRICTION RING WORN. REPAIRED BY PHI.Aug 13, 1998 · N437PH · Bell 407 · Starter-GeneratorSDR HEEA0015505Duct · crackedEXHAUST DUCT CRACKED CAUSED BY WORKING RIVETS ON BLOWER HOUSING.Aug 13, 1998 · N612PH · Bell 407 · Engine Collector/Tailpipe/NozzleSDR HEEA0015504Switch · failedTRANSMISSION PRESSURE LIGHT WILL NOT GO OUT WHEN OIL PRESSURE GOES THROUGH 38 PSI.Aug 13, 1998 · N467PH · Bell 407 · Main Rotor GearboxSDR HEEA0015503Bearing · wornBEARING SEAT HAS BLUE EPOXY WORN OFF.Aug 13, 1998 · N402PH · Bell 407 · Main Rotor HeadSDR HEEA0015502Bearing · roughTAIL ROTOR HAS ROUGH BEARING. SERIAL NUMBERS REMOVED ARE A98-0440 AND A98-0512.Aug 13, 1998 · N719PH · Bell 407 · Tail Rotor Drive SystemSDR HEEA0015501Shutoff Valve · inoperativeSHUT-OFF VALVE INOPERATIVE. HEATER WOULD NOT TURN ON WHEN POWER WAS DISTRIBUTED.Aug 13, 1998 · N407MM · Bell 407 · Heating SystemSDR HEEA0015496Freewheel · leakingMAIN ROTOR FREEWHEEL UNIT LEAKING.Aug 13, 1998 · N141MA · Bell 407 · Engine/Transmission CouplingSDR HEEA0015492Indicator · intermittentTORQUE INDICATOR INTERMITTENTLY INDICATING ZERO, LCD TEST GOOD, INDICATOR CAN SOMETIMES BE RESTROYED BY REMOVING AND RE-APPLYING POWER.Aug 13, 1998 · N403PH · Bell 407 · Engine BMEP/Torque IndicatingSDR HEEA0015491Indicator · failedMGT INDICATOR GOES BLANK AND GOES THROUGH LCD TEST MODE INTERMITTENTLY.Aug 13, 1998 · N57416 · Bell 407 · Rotor Drive Indicating SystemSDR HEEA0015490Indicator · failedAT LEAST HALF OF TORQUE INDICATOR LED LIGHTS BLINK OFF DURING FLIGHT.Aug 13, 1998 · N57416 · Bell 407 · Engine BMEP/Torque IndicatingSDR 98ZZZX3371Horn · corrodedAT 2,500 HOUR OVERHAUL OF M/R HUB, DISCOVERED 1 EACH PITCH HORN CORRODED BEYOND LIMITS UNDER PLATE, 3 EACH PITCH HORNS CORRODED BEYOND LIMITS IN DOWEL PIN BORE.Aug 11, 1998 · N407AL · Bell 407 · Main Rotor HeadSDR 98ZZZX3370Horn · corrodedAT 2,500 HOUR OVERHAUL OF M/R HUB, DISCOVERED 1 EACH PITCH HORN CORRODED BEYOND LIMITS UNDER PLATE, 3 EACH PITCH HORNS CORRODED BEYOND LIMITS IN DOWEL PIN BORE.Aug 11, 1998 · N407AL · Bell 407 · Main Rotor HeadSDR 98ZZZX3369Horn · corrodedAT 2,500 HOUR OVERHAUL OF M/R HUB, DISCOVERED 1 EACH PITCH HORN CORRODED BEYOND LIMITS UNDER PLATE, 3 EACH PITCH HORNS CORRODED BEYOND LIMITS IN DOWEL PIN BORE.Aug 11, 1998 · N407AL · Bell 407 · Main Rotor HeadSDR 98ZZZX3368Horn · corrodedAT 2,500 HOUR OVERHAUL OF M/R HUB, DISCOVERED 1 EACH PITCH HORN CORRODED BEYOND LIMITS UNDER PLATE, 3 EACH PITCH HORNS CORRODED BEYOND LIMITS IN DOWEL PIN BORE.Aug 11, 1998 · N407AL · Bell 407 · Main Rotor HeadSDR 98ZZZX3154Window · departedWHILE IN-FLIGHT, LT SLIDING WINDOW DEPARTED AIRCRAFT. AIRCRAFT CONTINUED TO LAND BASE. AFTER LANDING, A 'NICK' WAS DISCOVERED ON THE INBOARD TRAILING EDGE OF ONE T/R BLADE. REMOVED BLADE ASSEMBLY FOR REPAIR. REF: IPC, (407) FIGURE 152-8, ITEM 11.Aug 10, 1998 · N437PH · Bell 407 · Flight Compartment WindowsSDR 98ZZZX3519Disc · wornDURING 25 HOUR INSPECTION, GAP BETWEEN DISCS NR 1 AND NR 2, NR 2 AND NR 3, OF THE 10-DISC PACK EXCEED LIMITS.Aug 7, 1998 · N487AL · Bell 407 · Tail Rotor Drive ShaftSDR 98ZZZX3518Disc · wornDURING 25 HOUR INSPECTION, FOUND GAP BETWEEN DISC NR 1 AND NR 2, NR 9 AND NR 10, EXCEED LIMITS. (TOTAL NUMBER OF DISCS IN THE DISC PACK IS 10).Aug 7, 1998 · N487AL · Bell 407 · Tail Rotor Drive ShaftSDR 98ZZZX3367Inserts · looseUPON VISUAL INSPECTION OF PARTS, FOUND 1 EACH INSERT PULLED OUT OF GEARBOX HOUSING AND 2 EACH INSERTS LOOSE AT EXCITER BOX MATING SURFACE. ONE EACH INSERT P/N NAS1394-3L WAS PULLED OUT AND 2 EACH INSERTS WERE FOUND LOOSE. POSSIBLE CAUSE IS EXCESSIVE CLEARANCAug 7, 1998 · N407AL · Bell 407 · Main Rotor GearboxSDR 98ZZZX3363Insert · looseUPON VISUAL INSPECTION OF ALL PARTS, FOUND 1 EACH INSERT PULLED OUT AND 2 EACH INSERTS LOOSE AT EXCITER BOX MATING SURFACE ON GEARBOX HOUSING. ONE EACH INSERT P/N NAS1394-3L PULLED OUT AND 2 EACH INSERTS LOOSE. POSSIBLY CAUSED BY EXCESSIVE CLEARANCE BETWEEN Aug 7, 1998 · N457AL · Bell 407 · Main Rotor GearboxSDR 98ZZZX3356Gear · galledENGINE REMOVED FOR EXCESSIVE METAL ON BOTH PLUGS. DISASSEMBLED AND FOUND T/M GEAR TO PINION GEAR GALLING CAUSING METAL CONTAMINATION. SUBMITTER STATES IMPROPER MESHING BETWEEN T/M GEAR AND PINION GEAR WAS CAUSE FOR GALLING. SECONDARY DAMAGE - PINION GEAR P/Aug 7, 1998 · N457AL · Bell 407 · Turbine Engine Reduction GearSDR 98ZZZX3516Bolt · looseON DAILY SERVICE CHECK, 4 MOUNTING BOLTS FOR VERTICAL FIN WERE FOUND TO HAVE LOST TORQUE.Aug 6, 1998 · N577AL · Bell 407 · Vertical StabilizerSDR 98ZZZX3515Bolt · looseON DAILY SERVICE CHECK, 4 MOUNTING BOLTS FOR VERTICAL FIN WERE FOUND TO HAVE LOST TORQUE.Aug 6, 1998 · N577AL · Bell 407 · Vertical StabilizerSDR 98ZZZX3514Bolt · looseON PHASE INSPECTION FOUND 3 OF THE 4 VERTICAL FIN MOUNTING BOLTS LOST TORQUE.Aug 6, 1998 · N537AL · Bell 407 · Vertical StabilizerSDR 98ZZZX3513Bolt · looseON PHASE INSPECTION FOUND 3 OF THE 4 VERTICAL FIN MOUNTING BOLTS LOST TORQUE.Aug 6, 1998 · N537AL · Bell 407 · Vertical StabilizerSDR 98ZZZX3517Bolt · looseDURING DAILY SERVICE CHECK, FOUND UPPER AND LOWER AFT BOLTS TO HAVE LOST TORQUE.Aug 5, 1998 · N587AL · Bell 407 · Vertical StabilizerSDR 98ZZZX3521Disc · wornDURING 25 HOURS INSPECTION, FOUND GAP BETWEEN DISCS 9 AND 10 OF THE 10-DISC PACK EXCEED LIMITS.Aug 3, 1998 · N487AL · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0015359Encoder · failedENCODER READS HIGH OUT OF TOLERANCE.Jul 29, 1998 · N417PH · Bell 407 · Altimeter, Barometric/EncoderSDR HEEA0015356Indicator · stuckCLIMB RATE INDICATOR NEEDLE STICKS EXCESSIVELY.Jul 29, 1998 · N403PH · Bell 407 · Rate of Climb IndicatorSDR HEEA0015319Audio Selector · malfunctionedRADIO TRANSMISSION WEAK AND DISTORTED.Jul 29, 1998 · N467PH · Bell 407 · Audio Integrating SystemSDR HEEA0015290Gyro · brokenDIAL SCREW BACKED OUT OF CENTER DIAL SHAFT AND IS WEDGED BETWEEN DIAL AND FLAG IN DIRECTIONAL GYRO.Jul 27, 1998 · N719PH · Bell 407 · Directional Gyro and Indicating SystemSDR HEEA0015236Gauge · destroyedPRESSURE GAUGE SCRAPPED (PARTS IN PIECES).Jul 24, 1998 · N417PH · Bell 407 · Emergency Flotation SectionSDR 98ZZZX3362Bolt · looseBLEED VALVE WAS SET UP ON TEST BENCH AND A RE-ALIGNMENT OF 90 DEGREE ELBOW WAS NEEDED TO INSTALL TEST ORIFICE AND JUMPER TUBE AND NOTICED THAT UPON SLIGHT TENSION, BOLT WHICH WAS SAFTIED, MOVED. THESE BOLTS HAVE A 30 TO 35 INCH/POUND TORQUE ATTACHED AND UPON Jul 24, 1998 · N547AL · Bell 407 · Compressor Bleed ValveSDR 98ZZZX3359Bolts · losePRIOR TO INSTALLING BLEED VALVE ON TEST BENCH, AN INSPECTION OF ALL SAFETIES WAS ACCOMPLISHED AND FOUND 3 EACH BOLTS WERE SAFTIED BUT LOOSE. THESE BOLTS WERE IMPROPERLY TORQUED AND CAUSED A MAJOR AIR LEAK AT SPLIT LINES OF BLEED VALVE.Jul 24, 1998 · N567AL · Bell 407 · Compressor Bleed ValveSDR 98ZZZX3365Indicator · failedDURING GROUND RUN AFTER ANNUAL INSPECTION, ENGINE OIL PRESSURE GAUGE WENT FROM A NORMAL INDICATION TO ZERO. TROUBLESHOOTING THE PROBLEM, FOUND ENGINE OIL PRESSURE INDICATOR FAILED. REMOVED FAULTY INDICATOR AND INSTALLED NEW INDICATOR. FUNCTIONAL CHECK OK.Jul 23, 1998 · N973AA · Bell 407 · Engine Oil PressureSDR HEEA0015228Indicator · failedTURBINE NEEDLE WOULD NOT MOVE.Jul 22, 1998 · N457PH · Bell 407 · Engine RPM Indicating SystemSDR HEEA0015227Bearing · wornWORN BEARINGS ON TAIL ROTOR LINK.Jul 22, 1998 · N57416 · Bell 407 · Tail Rotor Control SystemSDR HEEA0015226Bearing · wornWORN BEARINGS ON TAIL ROTOR LINK.Jul 22, 1998 · N437PH · Bell 407 · Tail Rotor Control SystemSDR HEEA0015222Indicator · failedNR FAILED TO TEST.Jul 22, 1998 · N406PH · Bell 407 · Engine RPM Indicating SystemSDR HEEA0015221Clock · reads highOUTSIDE AIR TEMPERATURE READS HIGH.Jul 22, 1998 · N57416 · Bell 407 · Independent InstrumentsSDR HEEA0015220Stack · crackedEXHAUST STACK CRACKED.Jul 22, 1998 · N57416 · Bell 407 · Engine Collector/Tailpipe/NozzleSDR HEEA0015219Disk Coupling · corrodedDISK COUPLING HAS CORROSION.Jul 22, 1998 · N467PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0015218Valve · leakingCHECK VALVE LEAKING.Jul 22, 1998 · N57416 · Bell 407 · Emergency Flotation SectionSDR HEEA0015217Bearing · corrodedBEARING WORN AND CORRODED.Jul 22, 1998 · N407MM · Bell 407 · Tail Rotor BladesSDR HEEA0015216Link · wornTAIL ROTOR LINK WORN.Jul 22, 1998 · N402PH · Bell 407 · Tail Rotor Control SystemSDR 98ZZZX3092Disc Pack · cracked25 HOUR AD 97-234-17 PTS A, B, AND E. BOTH DISC PACKS HAD NR 1 DISC CRACKED. NR 1 DISC PER DISC PACK CRACKED, NR 4 AND N4 7 T/R DRIVE SHAFT.Jul 21, 1998 · N417AL · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0015198Switch · failedLOW LEVEL LIGHT ON SWITCH STAYS ON.Jul 17, 1998 · N405PH · Bell 407 · Exterior LightingSDR 98ZZZX3366Vertical Fin · damagedDURING C/W ASB 407-98-17, THE VERTICAL FIN WAS FOUND DAMAGED BEYOND THE MAXIMUM LIMIT. ACTUAL DEPTH IS APPROXIMATE DEPTH OF .027 INCH. REPLACED FIN WITH NEW FIN P/N 206-020-113-255A S/N BP-2653.Jul 17, 1998 · N973AA · Bell 407 · Vertical StabilizerSDR HEEA0015191Disk Coupling · crackedDISK COUPLING CRACKED.Jul 13, 1998 · N402PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0015190Disk Coupling · crackedDISK COUPLING CRACKED.Jul 13, 1998 · N405PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0015189Indicator · failedMGT INDICATOR ERRATIC, THEN WENT TO ZERO DEGREES.Jul 13, 1998 · N406PH · Bell 407 · Rotor Drive Indicating System
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