Bell 206-L4

Service difficulty reports · 710

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 = '206L4'
  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 HEEA0012672Actuator · failedACTUATOR ARM EXTENDS AND THEN RETRACTS WHEN KEPT UP.Jan 26, 1998 · N7077B · Bell 206L4 · Main Rotor ControlSDR 98ZZZX819Scroll · crackedDURING SCHEDULED 100-HOUR INSPECTION, DISCOVERED COMPRESSOR SCROLL CRACKED IN ABOUT 2 O'CLOCK AREA OF RIGHT SHOULDER IN THE CURVATURE NEAR THE MATING SURFACE TO THE COMPRESSOR. THIS WAS A REPAIRED SCROLL THAT HAD BEEN INSTALLED DUE TO A PREVIOUSLY CRACKED SCRJan 15, 1998 · N404W · Bell 206L4 · Turbine Engine Compressor SectionSDR HEEA0012399Generator · failedGENERATOR WOULD NOT COME ON LINE. REPLACED WITH SERVICEABLE GENERATOR.Dec 31, 1997 · N7074W · Bell 206L4 · Starter-GeneratorSDR HEEA0012396Rod Assy · failedROD ASSY BEARING ENDS ARE COMING APART. REPLACED WITH SERVICEABLE ROD ASSEMBLY.Dec 31, 1997 · N7077F · Bell 206L4 · Tail Rotor Control SystemSDR HEEA0012395Rod Assy · failedROD ASSY BEARING ENDS ARE COMING APART. REPLACED WITH SERVICEABLE ROD ASSEMBLY.Dec 31, 1997 · N7074W · Bell 206L4 · Tail Rotor Control SystemSDR HEEA0012267Oil Pump · crackedCRACKED HOUSING (CRACK SEEMS TO HAVE OCCURED WHEN THE OIL PUMP ASSY WAS INSTALLED INTO THE TRANSMISSION.Dec 5, 1997 · Bell 206L4 · Main Rotor GearboxSDR 98ZZZX466Adapter · scoredDURING INSPECTION DISCOVERED SAFETY WIRE PIGTAIL HAD BEEN TURNED IN WRONG DIRECTION AND HAD WORN A GROOVE IN THE FACE OF THE MAIN DRIVESHAFT ADAPTER. THIS CONDITION, IF NOT DISCOVERED, WOULD EVENTUALLY LEAD TO MAIN DRIVESHAFT FAILURE.Nov 25, 1997 · N404W · Bell 206L4 · Engine/Transmission CouplingSDR HEEA0011974Tot Indicator · sticksTOT INDICATOR NEEDLE STICKS.Nov 12, 1997 · N7074W · Bell 206L4 · Engine EGT/TIT Indicating SystemSDR 98ZZZX1274Garlock Seal · leakingNEW PTO SEALS INSTALLED IN REPAIRED GEARBOX ON 9-23-97. ENGINE WAS ASSEMBLED AND TESTED ON 11-07-97. DURING TEST RUN, FOUND FORWARD PTO SEAL LEAKING. NEW PTO SEALS ARE LARGER IN DIAMETER THAN (RED) PTO SEALS PN 524919. UPON INSTALLATION, SEALS ARE EXTREMELNov 7, 1997 · Bell 206L4 · Turbine Engine Reduction GearSDR HEEA0011443Pump · wornPUMP SPLINES WORN ON SHAFT.Oct 10, 1997 · N62127 · Bell 206L4 · Hydraulic Pump (Electric/Engine), MainSDR HEEA0011195Shaft · wornSHAFT SPLINES WORN MIC. READING .518. REPLACED WITH SERVICEABLE SHAFT.Oct 2, 1997 · N62127 · Bell 206L4 · Main Rotor GearboxSDR 97ZZZX4340Hoist · malfunctionDURING A TRAINING PERIOD, THE CABLE CUTTER ENGAGED THE CABLE CAUSING A PARTIAL FAILURE OF THE CABLE WHILE A CREW MEMBER WAS BEING LOWERED. THE HOIST HAS BEEN RETURNED TO THE MANUFACTURER FOR ANALYSIS. A FOLLOW-UP REPORT STATES MFG ANALYSIS FOUND THE CABLE CUSep 25, 1997 · N6197N · Bell 206L4 · Cargo CompartmentsSDR HEEA0011032Center Case · corrodedCORRODED IN BOLT HOLES BEYOND LIMITS. REMOVED FROM A/C SERIAL NUMBER 52119.Sep 10, 1997 · Bell 206L4 · Main Rotor GearboxSDR HEEA0011019Indicator · reads highTOT READS HIGH OUT OF TOLERANCE.Sep 10, 1997 · N7074W · Bell 206L4 · Engine EGT/TIT Indicating SystemSDR 97ZZZX4472Fuel Control · malfunctionDURING A HOVER WHILE PREPARING TO TAKEOFF, THE ENGINE DECELERATED. A HOVERING AUTOROTATION WAS SUCCESSFULLY ACCOMPLISHED. UPON LANDING, THE ENGINE STABILIZED AT 40 PERCENT N WITH THE THROTTLE FULL OPEN AND THE COLLECTIVE FULL DOWN. FUEL CONTROL MALFUNCTION.Aug 29, 1997 · N3172V · Bell 206L4 · Fuel Control/Turbine EnginesSDR HEEA0010783Indicator · malfunctionFLAG WILL NOT PULL. SENT TO B.F. GOODRICH AEROSPACE FOR INSPECTION AND REPAIR.Aug 20, 1997 · N7077B · Bell 206L4 · Attitude Gyro and Indicating SystemSDR 97ZZZX4426Scavenge Tube · chafedUPON DISASSEMBLY OF ENGINE FOR T/C, FOUND SCAVENGE TUBE HAD EXCESSIVE CHAFING FROM CONTACT WITH COMPRESSOR SCROLL. EXCESSIVE CHAFING ON TUBE DUE TO MISALIGNMENT CAUSING CONTACT WITH SCROLL. SUBMITTER STATED ENSURE PROPER CLEARANCE BETWEEN NR 1 SCAVENGE TUBE Aug 13, 1997 · N177AL · Bell 206L4 · Turbine Engine Oil SystemSDR 97ZZZX4409Indicator · stuckAT INITIAL START, TOT INDICATOR STOP ARM STICKING TO LATEX BUMPER. REPLACE BUMPER WITH A DIFFERENT MATERIAL.Aug 13, 1997 · N177AL · Bell 206L4 · Engine EGT/TIT Indicating SystemSDR HEEA0010628Skynav 5000 · failedGPS WILL NOT PROGRAM.Aug 12, 1997 · N7074W · Bell 206L4 · Global Positioning SystemSDR 97ZZZX4425Case Assembly · corrodedTRANSMISSION REMOVED AND SENT TO COMPONENT SHOP FOR 4,500 HOUR OVERHAUL. EXCESSIVE CORROSION WAS FOUND ON MAIN CASE UNDER INPUT QUILL FLANGE. ALSO, UNDER OIL JET. THIS IS THE FIRST TIME THESE AREAS HAVE BEEN DISASSEMBLED SINCE NEW AIRCRAFT WAS DELIVERED FROAug 12, 1997 · N174AL · Bell 206L4 · Main Rotor GearboxSDR HEEA0010574Indicator · erraticTURBINE NEEDLE ERRATIC BELOW 50% RPM.Aug 6, 1997 · N7077B · Bell 206L4 · Engine RPM Indicating SystemSDR HEEA0010351Trans Restraint · bearing unstakedXMSN RESTRAINT BEARING CAME UNSTAKED.Jun 26, 1997 · N7074W · Bell 206L4 · Main Rotor Transmission MountSDR HEEA0010232Indicator · faultyAFTER UNIT WARMS UP, INDICATES HIGH OUT OF TOLERANCE THROUGHOUT SCALE. STARTS READING HIGH AT 400. 20 HIGH AT 826.Jun 25, 1997 · N7077B · Bell 206L4 · Engine EGT/TIT Indicating SystemSDR HEEA0010197Indicator · defectiveATTITUDE IND. SLOW TO ERECT.Jun 23, 1997 · N7077B · Bell 206L4 · Attitude Gyro and Indicating SystemSDR HEEA0010175Servo · leakingSERVO LEAKING.Jun 19, 1997 · N7077B · Bell 206L4 · Rotorcraft Servo SystemSDR HEEA0010089Skynav 5000 · malfunctionGPS LOSING WAYPOINT.Jun 11, 1997 · N7077B · Bell 206L4 · Global Positioning SystemSDR HAIHEEA9999Bearing · crackedTWO EACH INBOARD BEARINGS CRACKED. 2 EACH OUTBOARD BEARINGS GALLED ON BOTH BLADES P/N 206-016-201-131 (T.T. 471:50) ALONG WITH 4 EACH SLEEVES P/N 206-010-733-003.May 30, 1997 · N7077B · Bell 206L4 · Tail Rotor HeadSDR HAIHEEA9805Ga56 Antenna · failedGPS ANTENNA NON-FUNCTIONAL.May 7, 1997 · N8094L · Bell 206L4 · Global Positioning SystemSDR HAIHEEA9774Indicator · defectiveTURN AND SLIP INDICATOR EXCESSIVE VIBRATION.May 7, 1997 · N7077F · Bell 206L4 · Turn and Bank/Rate of Turn IndicatorSDR 97ZZZX2480Seal · leakREPLACED FREEWHEELING UNIT TAIL ROTOR OUTPUT DRIVE SEAL DUE TO LEAKING OIL. ACFT TT, 407.4 HOURS.Apr 30, 1997 · N696BA · Bell 206L4 · Engine/Transmission CouplingSDR HAIHEEA9635Fuel Filter · defectiveNO FILTER LIGHT WHEN TEST BUTTON PUSHED ON IN PRE-FLIGHT.Apr 29, 1997 · N7077F · Bell 206L4 · Aircraft Fuel Filter/StrainerSDR HAIHEEA9479Transmitter · defectiveFUEL QUANTITY GAUGE FLUCTUATES ERRATICALLY IN FLIGHT.Apr 23, 1997 · N7074W · Bell 206L4 · Fuel Quantity SensorSDR 97ZZZX1941Seal · leakingREPLACED FREEWHEELING UNIT TAIL ROTOR OUTPUT DRIVE SEAL DUE TO LEAKING OIL. ACFT TT: 384.2 HOURS.Apr 12, 1997 · N696BA · Bell 206L4 · Engine/Transmission CouplingSDR HAIHEEA9289Gps · malfunctionLOSES WAY POINTS OVERNIGHT.Mar 31, 1997 · N62127 · Bell 206L4 · Long-Range Navigation (LORAN) SystemSDR NYBA9715Turbine Assy · defective# 8 BEARING HEAT SHIELD MISSING A LARGE PORTION. REPLACED TURBINE ASSYMar 18, 1997 · N125NH · Bell 206L4 · Turbine SectionSDR NYBA9710Engine Assy · defectiveUNABLE TO START ENGINE. REPLACED FCU/FUEL NOZZLE / COMBUSTION LINERMar 18, 1997 · N125NH · Bell 206L4 · Engine (Turbine/Turboprop)SDR NYBA979Tailboom Assy · loose rivetsWORKING RIVETS @ TAIL ROTOR GEARBOX ATTACHMENT POINT REPLACED RIVETSMar 17, 1997 · N125NH · Bell 206L4 · Rotorcraft Tail BoomSDR NYBA978Blade · erodedBLADE IS ERODED. REPLACED MAIN ROTOR BLADEMar 17, 1997 · N125NH · Bell 206L4 · Main Rotor BladesSDR NYBA977Tailboom Assy · worn excessPART IS WORN EXCESSIVELY. REPLACED WORKING RIVETS ON TAIL SECTIONMar 17, 1997 · N125NH · Bell 206L4 · Rotorcraft Tail BoomSDR CA970310002Nodal Beam · damaged(CAN) PURGE VALVE CANNON PLUG FOUND TRAPPED BETWEEN NODAL BEAM AND UP STOP. NODAL BEAM AND STOP DAMAGED BEYOND MANUFACTURERS LIMITS.Mar 3, 1997 · Bell 206L4 · Main Rotor Transmission MountSDR CA970304002Battery · dead(CAN) BATTERY WOULD NOT ACCEPT CHARGE.Feb 21, 1997 · Bell 206L4 · Battery/Charger SystemSDR 97ZZZX1940Seal · leakingREPLACED FREEWHEELING UNIT TAIL ROTOR OUTPUT DRIVE SEAL DUE TO LEAKING OIL. ACFT TT: 317.6 HOURS.Feb 12, 1997 · N696BA · Bell 206L4 · Engine/Transmission CouplingSDR HEEA978934Indicator · leakENG OIL AND TEMP INDICATOR INTERNAL OIL LEAKS.Jan 29, 1997 · N62127 · Bell 206L4 · Engine Oil TemperatureSDR 97ZZZX486Fitting · crackedWHILE PERFORMING A 100 HR INSPECTION, MECHANIC NOTED THAT TAIL BOOM FITTING P/N 206-032-409-001 WAS FOUND CRACKED. CRACKS RAN BETWEEN TWO RIVETS ON THE UPPER LT FITTING. NEW YORK HELICOPTER BELIEVES THE CRACK TO THE FITTING IS DUE TO NEGATIVE GROUND PITCH ANJan 5, 1997 · N123NH · Bell 206L4 · Rotorcraft Tail BoomSDR 97ZZZX937Drive Shaft · wornDURING 1500 HOUR FUEL PUMP DRIVE SHAFT INSPECTION FOUND P/N 216002 DRIVE SHAFT WORN AND P/N 215988-1 GEAR WORN BEYOND LIMITS. THIS UNIT WOULD PROBABLY NOT HAVE MADE OVERHAUL WITHOUT RAILING.Dec 23, 1996 · N176AL · Bell 206L4 · Turbine Engine Accessory DriveSDR 97ZZZX936Fuel Control · leakEN ROUTE, STRONG SMELL OF FUEL WAS NOTICED IN THE COCKPIT. INITIALLY SUSPECTED ONE OF THE PASSENGERS WHO HAD PREVIOUSLY REFUELED AIRCRAFT HAD GOTTEN FUEL ON HIS CLOTHING. AFTER LANDING, FUEL WAS OBSERVED COMING FROM FUEL CONTROL UNIT. FOUND FUEL CONTROL LEADec 16, 1996 · N173AL · Bell 206L4 · Fuel Control/Reciprocating EnginesSDR HEEA968560Transceiver · defectiveDOESN'T REPORT CODE PROPERLY. PERFORMED PRELIMINARY INSPECTION, CLEANED WAFER SWITCHES, REPAIRED. REPLACED R477 RESISTOR DUE TO BEING DETERIORATED. REPAIRED. ALSO REPLACED BLOWN FUSE (F401). REPAIRED. BENCH CHECK GOOD.Nov 25, 1996 · N62127 · Bell 206L4 · ATC Transponder SystemSDR CA961203010Bearing · worn(CAN) UNUSUAL PLAY IN SWASHPLATE. INSPECTION FOUND TEFLON ON BEARINGS WORN AWAY.Nov 25, 1996 · Bell 206L4 · Main Rotor Mast/SwashplateSDR 96ZZZX6036Collar Set · mis mfgINSP FOUND M/R COLLAR SET DEFECTIVE. REPLACED WITH NEW COLLAR SET.Nov 12, 1996 · N62673 · Bell 206L4 · Main Rotor HeadSDR 97ZZZX221Link Idler · wornDAILY INSPECTION FOUND BUSHINGS AND BEARINGS WORN BEYOND LIMITS. PARTS REQUIRING REPLACEMENT: 4 EACH 206-010-338-001 SPACERS, 4 EACH 206-010-337-001 BEARINGS, 2 EACH 206-010-338-003 BUSHINGS, 2 EACH NAS6605D64 BOLTS, 1 EACH 206-010-470-101 BEARING. NORMAL UNov 7, 1996 · N174AL · Bell 206L4 · Main Rotor Mast/Swashplate
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