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 HEEA060918Oil Cooler · cloggedOIL COOLER HAS HIGH OIL TEMPERATURE AND CORE IS CLOGGED.Feb 23, 1999 · N7077B · Bell 206L4 · Engine Oil CoolerSDR HEEA060830Exhaust Stack · crackedEXHAUST ASSEMBLY CRACKED.Feb 22, 1999 · N7077B · Bell 206L4 · Engine Collector/Tailpipe/NozzleSDR HEEA060661Carbon Seal · leakingSEAL LEAKING. REPLACED WITH SERVICEABLE SEAL.Feb 16, 1999 · N7077B · Bell 206L4 · Engine/Transmission CouplingSDR 99ZZZX1683Trunnion · corrodedSPLINES BADLY CORRODED. TRUNNION SCRAPPED AT 1/2 LIFE.Feb 9, 1999 · N174AL · Bell 206L4 · Main Rotor HeadSDR 99ZZZX1224Blade · corrodedDISCOVERED DURING DAILY INSPECTION, CORROSION AND SEPARATION AT TIP.Feb 9, 1999 · N174AL · Bell 206L4 · Main Rotor BladesSDR 99ZZZX1349Actuator · failedLINEAR ACTUATOR FAILED AT FULL STROKE WITH HIGH ALTITUDE. TAIL ROTOR PITCH FIXED AT 100 PERCENT. ACTT: 1,228.2 HOURS.Feb 3, 1999 · N3310 · Bell 206L4 · Tail Rotor Control SystemSDR HEEA060416Cover · wornFLOAT COVER WORN.Jan 28, 1999 · N62127 · Bell 206L4 · Emergency Flotation SectionSDR HEEA060409Indicator · sticksTOT INDICATOR NEEDLE STUCK AT ZERO ON START.Jan 28, 1999 · N7077F · Bell 206L4 · Engine EGT/TIT Indicating SystemSDR HEEA060388Actuator · failedACTUATOR INOPERATIVE. WILL NOT BEEP UP AND DOWN.Jan 28, 1999 · N62127 · Bell 206L4 · Main Rotor ControlSDR HEEA060359Case Assy · crackedCRACK INDICATION. REPLACED WITH SERVICEABLE CASE.Jan 27, 1999 · N7077F · Bell 206L4 · Main Rotor GearboxSDR 99ZZZX2444Skin · crackedAD 99-02-01. HORIZONTAL STABILIZER OPENING, LEFT SIDE, HAS CRACK TO SEAM.Jan 25, 1999 · Bell 206L4 · Rotorcraft Tail BoomSDR HEEA060215Fitting · crackedUPPER LEFT TAILBOOM FITTING CRACKED. REPLACED WITH SERVICEABLE FITTING.Jan 22, 1999 · N62127 · Bell 206L4 · Rotorcraft Tail BoomSDR HEEA060166Gps · malfunctionedGPS NOT FUNCTIONING CORRECTLY.Jan 22, 1999 · N62127 · Bell 206L4 · Global Positioning SystemSDR HEEA060150Transponder · erraticTRANSPONDER REPORTED INOPERATIVE. PERFORMED PRELIMINARY INSPECTION AND FOUND SENSITIVITY WEAK AND ERRATIC. UNABLE TO ADJUST.Jan 22, 1999 · N7077B · Bell 206L4 · ATC Transponder SystemSDR 99ZZZX43Blade · corrodedDISCOVERED DURING DAILY INPSECTION, HEAVY CORROSION ALONG TRAILING EDGE (APPEARS TO BE INTERGRANNULAR CORROSION IN TRAILING EDGE EXTRUSION).Dec 9, 1998 · N171AL · Bell 206L4 · Main Rotor BladesSDR 99ZZZX229Mount · chafedREPLACED RESTRAINT AND MOUNT WITH NEW PARTS.Dec 1, 1998 · N36R · Bell 206L4 · Main Rotor Transmission MountSDR 99ZZZX228Restraint · chafedREPLACED RESTRAINT AND MOUNT WITH NEW PARTS.Dec 1, 1998 · N36R · Bell 206L4 · Main Rotor Transmission MountSDR 98ZZZX4811Mount · chafedREPLACED TUBE AND MOUNT WITH NEW PARTS SUPPLIED BY BELL HELICOPTER.Dec 1, 1998 · N94PD · Bell 206L4 · Main Rotor Transmission MountSDR 98ZZZX4810Tube · chafedREPLACED TUBE AND MOUNT WITH NEW PARTS SUPPLIED BY BELL HELICOPTER.Dec 1, 1998 · N94PD · Bell 206L4 · Main Rotor Transmission MountSDR 98ZZZX4807Tube · chafedREPLACED TUBE WITH NEW PARTS SUPPLIED BY BELL HELICOPTER.Dec 1, 1998 · N36R · Bell 206L4 · Main Rotor Transmission MountSDR CA981130024Channel · cracked(CAN) CRACK FOUND ON THE LEFT CHANNEL OF THE SPAR AT THE SUPPORT FOR ONE OF THE ATTACHMENTS FOR THE TAIL BEAM. PART TC: 2,747.Nov 19, 1998 · Bell 206L4 · Rotorcraft Tail BoomSDR 98ZZZX4754Release Cable · malfunctionedCARGO HOOK MANUAL RELEASE CABLE TOO SHORT. APPLIES TO ALL BELL 206L SERIES HELICOPTERS UTILIZING ONBOARD SYSTEMS E-72 ELECTRONIC LOAD WEIGH SYSTEM. WITH THE LOAD CELL INSTALLED BETWEEN THE CARGO HOOK AND LOAD TROLLEY, FULL TRAVEL CANNOT BE OBTAINED WITH THE Nov 6, 1998 · N404W · Bell 206L4 · Fuselage, Seat/Cargo Attach FittingsSDR 98ZZZX4358Seal · failedON PART 135 FLIGHT, PILOT NOTICED HIGH ENGINE OIL PRESURE AND FLICKERING TRANS OIL PRESS LOW LIGHT. AFTER REDUCING POWER, LIGHTS WENT OUT. PILOT CONTINUED FLIGHT FOR 10 MINUTES WHEN TRANS OIL PRESS LIGHT CAME ON STEADY. PILOT MADE PRECAUTIONARY LANDING AND Nov 3, 1998 · N2064S · Bell 206L4 · Engine/Transmission CouplingSDR 98ZZZX4755Frame · damagedREMOVAL OF FRAME TO REPLACE WORKING RIVETS ON UPPER FITTING. LOWER LT AND RT ATTACHMENT CASTINGS CHAFING FRAME IN RADIUS.Oct 20, 1998 · N173AL · Bell 206L4 · Fuselage Main, FrameSDR 98ZZZX4081Skin · crackedSIX INCH CRACK WAS FOUND ON TAIL BOOM SKIN AT THE FORWARD LOWER CUT-OUT AREA FOR THE HORIZONTAL STABILIZER. SUBMITTER STATED BELL HELICOPTER HAS ISSUED AN OPERATION SAFETY NOTICE ON THIS PROBLEM.Oct 16, 1998 · N2AQ · Bell 206L4 · Rotorcraft Tail BoomSDR 98ZZZX4744Battery · damaged90-DAY LIFE VEST INSPECTION FOUND MOISTURE GETS PLUGS AND CAUSES BATTERY CASE TO SWELL AND WIRE CONNECTION TO LIGHT TO PUSH OUT OF CASE.Oct 12, 1998 · N170AL · Bell 206L4 · Life JacketSDR HEEA0016120Support · bentRECEIVING INSPECTION REVEALED: BEND BEYOND SERVICEABLE LIMITS ON G.P. SUPPORT PRESSURE OIL STRUT. PART OVERHAULED W/O 16671.Oct 6, 1998 · N7077B · Bell 206L4 · Turbine SectionSDR CA980916069Trunnion · brinnelled(CAN) DURING TAIL ROTOR BLADE REMOVAL, TRUNNION FELT RATCHETY AND HAD NO PRELOAD. TRUNNION RACE BRINNELLED BEYOND LIMITS.Sep 1, 1998 · Bell 206L4 · Tail Rotor HeadSDR CA980916068Bearing · loose(CAN) ON DAILY INSPECTION, TAIL ROTOR BLADE OUTBOARD BEARING LOOSE AUXILIARY IN THE BLADE. PART TC:Sep 1, 1998 · Bell 206L4 · Tail Rotor BladesSDR 98ZZZX3552Skin · crackedCRACK FOUND ACROSS TOP SKIN BETWEEN HORIZONTAL STABILIZER.Sep 1, 1998 · N802DS · Bell 206L4 · Rotorcraft Tail BoomSDR HEEA0015879Actuator · inoperativeACTUATOR INOPERATIVE. TRIES TO MOVE ONLY ONE WAY.Aug 27, 1998 · Bell 206L4 · Main Rotor ControlSDR HEEA0015476Transceiver · malfunctionedVHF RADIO WILL NOT TURN OFF.Jul 30, 1998 · Bell 206L4 · VHF Communications SystemSDR HEEA0015292Transceiver · failedON FIRST FLIGHT, VHF TRANSMITTED GARBLED.Jul 27, 1998 · Bell 206L4 · VHF Communications SystemSDR 98ZZZX3094Hinge · wornDURING ROUTINE INSPECTION, FOUND T/R GEARBOX FAIRING HINGE WORN, FILLER DOOR MISSING. THE FILLER DOOR HAD CONTACTED ONE TAIL ROTOR BLADE. THIS BLADE WAS FOUND UNSERVICEABLE. TAIL ROTOR HUB BLADE ASSY WAS REPLACED. AIRCRAFT WAS VISUALLY INSPECTED AND RETURNJul 27, 1998 · N175AL · Bell 206L4 · Aerodynamic FairingsSDR HEEA0015209Splice · mismanufacturedAFT FLANGE OF T-ANGLE SPLICE IS TRIMMED TOO SHORT TO PROVIDE PROPER EDGE DISTANCE FOR .1562 INCH RIVETS. THE AREA WHICH IS TRIMMED TOO SHORT IS ON THE SIDE OF PART, JUST INBOARD OF WHERE THE CURVE BEGINS TO MATCH THE SHELL CONTOUR.Jul 21, 1998 · Bell 206L4 · Fuselage Miscellaneous StructureSDR HEEA0015208Intercostal · mismarkedINTERCOSTAL MISMARKED. PART SERVICEABLE. VENDOR MISPACKAGED P/N 206-033-410-021S WAS ORDERED, THE BHT PICK TICKET HAS -021S P/N ON IT; BUT A -025S INTERCOSTAL WAS SENT.Jul 21, 1998 · Bell 206L4 · Fuselage Miscellaneous StructureSDR HEEA0015204Fitting · mismanufacturedFITTING MISMANUFACTURED. FORWARD CORNERS OF FITTING WHERE FITTING CONTACTS FORWARD TAILBOOM BULKHEAD FRAME. THE AFT END OF THE FITTING IS RADIUSED AND IS NOT REQUIRED TO BE.Jul 21, 1998 · Bell 206L4 · Fuselage Miscellaneous StructureSDR 99ZZZX1225Blade · corrodedDISCOVERED DURING DAILY INSPECTION, SKIN CORRODED, SEPARATED AND TORN ON LOWER SIDE TIP.Jul 11, 1998 · N176AL · Bell 206L4 · Main Rotor BladesSDR HEEA0015048Transceiver · failedTRANSCEIVER WILL NOT POWER UP.Jun 30, 1998 · Bell 206L4 · VHF Communications SystemSDR HEEA0014873Center Case · corrodedMAIN ROTOR GEARBOX HAS CORROSION IN BOLT HOLES.Jun 22, 1998 · N7077B · Bell 206L4 · Main Rotor GearboxSDR HEEA0014754Input Line · wornGEARBOX INPUT LINE IS WORN.Jun 11, 1998 · N7077B · Bell 206L4 · Main Rotor GearboxSDR HEEA0014730Encoder · malfunctionedENCODER ALTITUDE NOT RECEIVED BY ATC.Jun 11, 1998 · N7074W · Bell 206L4 · Altimeter, Barometric/EncoderSDR CA980421028Skin · damaged(CAN) THE MOUNTING FLANGE OF THE MAINTENANCE STEP HAS A CAVITY WHICH ALLOWS MOISTURE TO COLLECT AND FREEZE/EXPAND CAUSING A RUPTURE IN THE SKIN OF THE A/C AND DAMAGE TO THE HONEYCOMB BENEATH.Apr 8, 1998 · Bell 206L4 · Fuselage Main, Plate/SkinSDR HEEA0013715Actuator · failedINOPERATIVE.Apr 2, 1998 · N7077F · Bell 206L4 · Main Rotor ControlSDR 98ZZZX1701Tube · chafedWHILE REMOVING RENTAL ENGINE AND TRANSFERRING HARD LINE P/N 23058110-A FROM RENTAL ENGINE TO ORIGINAL ENGINE, SEVERE CHAFING NOTED UNDER ADEL CLAMP. THIS IS SCAVENGE OIL LINE FROM BOTTOM OF COMPRESSOR TO THE N1 SIDE OF GEARBOX. ABRASIVE DUST AND AIRBORNE DIRMar 12, 1998 · N108W · Bell 206L4 · Turbine Engine Oil SystemSDR HEEA0013115Input Shaft · wornINPUT SHAFT SPLINES WORN BEYOND LIMITS. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N7077B · Bell 206L4 · Engine/Transmission CouplingSDR HEEA0013114Bearing · failedBEARING BREAKING DOWN ON ROLLER. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N7077B · Bell 206L4 · Engine/Transmission CouplingSDR HEEA0013113Bearing · groovedBEARING HAS GROOVES ON ROLLERS. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N7077B · Bell 206L4 · Engine/Transmission CouplingSDR CA980305001Tube · worn(CAN) VERTICAL TUNNEL AND FORWARD PILOT AND COPILOT SEAT AREAS OPENED, AND THEN WHILE MOVING COLLECTIVE, LEVER WAS FOUND CONTACTING BOTH OIL PRESSURE AND TORQUE PRESSURE LINES. TUBES WERE WORN AND PROTECTIVE PAINT WAS WORN OFF OF LEVER. TUBES ADJUSTED FOR CLFeb 13, 1998 · Bell 206L4 · Engine Oil PressureSDR 98ZZZX1347Wire Rope · frayedDURING 100-HOUR INSPECTION, CARGO HOOK RELEASE CABLE WAS DISCOVERED SEVERELY FRAYED ON BOTH ENDS OF CABLE INSIDE CABLE HOUSING. THIS CABLE WAS PREVIOUSLY REPLACED 2 YEARS AGO AND 681 HOURS ACCRUED ON THIS INSTALLATION BEFORE FAILURE. WHEN PERFORMING EXTERNALFeb 10, 1998 · N108W · Bell 206L4 · Cargo Compartments
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