JASC 6520
Service difficulty reports · 865
Reports filed under 6520 · Tail Rotor Gearbox, 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 jasc_code = '6520' 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.
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 jasc_code = '6520' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR ALGA087751Seal · leakingMULTIPLE INPUT SEALS LEAKING WHEN RUN-UP ON TEST STAND. REPLACED SEALS WITH NEW.SDR HEEA087449Adapter · leakingADAPTER AND WEAR SLEEVE REMOVED DUE TO OIL LEAKING BETWEEN SLEEVE AND ADAPTER. TO BE SENT FOR CREDIT.SDR HEEA087213Housing · leakingTAIL ROTOR GEARBOX SEAL LEAKING. REPAIRED.SDR HEEA087025Case · corrodedTAIL ROTOR GEARBOX CASE HAS EXCESSIVE CORROSION IN AREAS AROUND CHIP PLUG. TO BE SENT FOR CREDIT.SDR HEEA087023Drive Gear · corrodedCORROSION ON T/R HUB DRIVE SPLINES.SDR HEEA086608Case · corrodedTAIL ROTOR GEARBOX CASE CORRODED.SDR HEEA088455Gearbox · corrodedTAIL ROTOR GEARBOX HAS CORROSION ON INSIDE DIAMETER OF OUTPUT SHAFT; BINDING. REPLACED OUTPUT SHAFT 206-040-439-001, S/N A-FS6642 DUE TO EXCESSIVE CORROSION; CONTROL TUBE 206-011-724-109 DUE TO EXCESSIVE CORROSION. REPAIRED.SDR ERAA087103Gearbox · making metalINT GEARBOX MAKING METAL. C/W PRE INSPECTION. NO DEFECTS NOTED. DISASSEMBLED GEAR BOX FORMS NECESSARY FOR REPAIR. CLEANED & VISUALLY INSPECTED ALL PARTS. NO DEFECTS NOTED. REASSEMBLED G/B WITH NEW O RINGS, ORIGINAL PARTS & HARDWARE. SAFTIED ALL REQUIRED HASDR CA030708010Shaft · stripped(CAN) DURING ATTEMPTED DISASSEMBLY, WE WERE UNABLE TO REMOVE THREADED SLEEVE PN 209011719003. FOUND INCORRECT HARDWARE STARKUP (WASHER PN 212010714003 MISSING). PRESUME SLEEVE BOTTOMED OUT, NUT MS14145L8 ALSO, AND HENCE THREADS STRIPPED ON TORQUE UP. HAD TO HSDR ERAA087079Gearbox · making metalGEARBOX MAKING METAL. FOUND GEAR SET HAS PITTING ON TEETH, SCRAPPED GEAR SET, FOUND PITTING ON TAPERED ROLLER BEARINGS OUTER RACES. OVERHAULED GEARBOX ASSY IAW REM 304 AND SB BO-105-30-109. COMPLIED WITH SB BO-105-30-109, INSTALLED NEW PINION AND BEVEL GEARSDR CA030416005Seal · leaking(CAN) NEW SEALS HAVE BEEN FOUND TO BE LEAKING FROM NEW. THESE ARE A NEW P/N RELEASED BY SIKORSKY AND SEVERAL CUSTOMER COMPLAINTS HAVE BEEN RECEIVED. NEW SEALS FOUND IN THE MAIN GEARBOX HAVE ALSO LEAKED UPON TEST OR SUBSEQUENT FIELD USE.SDR BAQA085911Actuator · leakingTAIL ROTOR ACTUATOR LEAKING. CLEVIS WORN. WAITING FOR UNIT TO COME IN FROM AEC. CORE UNIT WAS OUR ASSET OFF OF 7249 SINCE 7249 USED A RECENT REPAIRED UNIT REPAIRED FOR 7099 (NO UNIT ON 7099). 7099 NEEDED ONE IMMEDIATELY, PURCHASED ONE FOR 7099 AS AN EXCHANSDR VY1L110910Magnetic Seal · crackedMAGNETIC SEAL CRACKING AFTER 274 HOURS.SDR HEEA084934Case · damagedRECEIVED HIGH BACKLASH READINGS WHEN GEARBOX WAS REASSEMBLED 0.012, 0.0125 AND 0.0125 INCH. MAXIMUM BACKLASH ALLOWED IS 0.011 INCH.SDR HEEA084933Adapter · leakingLEAKING OIL FROM PITCH CONTROL SHAFT THROUGH CAVITY. REPAIRED. REPLACED ADAPTER DUE TO WORN AND CAP ASSY 204040502009 DUE TO WORN.SDR HEEA084932Coupling · corrodedTAIL ROTOR GEARBOX LEAKING OIL. REPAIRED. REPLACED OUTER COUPLING DUE TO PITTING.SDR HEEA084931Gearbox · damagedGEARBOX HAS EXCESSIVE BACKLASH AT FWD COUPLING. REPAIRED.SDR AC2A084859Gearbox · crackedOUTPUT SHAFT SPLINES ARE RUSTED, WORN AND ONE SPLINE IS CRACKED TOWARDS INBOARD SIDE. THIS IS THE FIRST TIME THE TAIL ROTOR ASSEMBLY WAS REMOVED SINCE RECEIVING THE AIRCRAFT NEW FROM BELL HELICOPTER. REPLACE GEARBOX ASSEMBLY WITH EXCHANGE UNIT.SDR ALGA084142Gearbox · wornTAIL ROTOR GEARBOX MOUNT HOLE ELONGATED AND WORN AT CONTACT POINT.SDR ALGA084141Gearbox · wornMOUNT HOLE ON GEARBOX ELONGATED AND WORN AT CONTACT POINT.SDR ALGA084135Seal · defectiveFOUND TAIL ROTOR GEARBOX SEAL DEFECTIVE AND LEAKING. REPLACED SEAL WITH A NEW PART.SDR ERAA085164Gearbox · making metalGEARBOX MAKING METAL. GEAR SET SCRAPPED DUE TO MICRO PITTING, OUTPUT BEARINGS SCRAPPED DUE TO MICRO PITTING. REPAIRED IAW REM 304, INSTALLED NEW PINION, BEVEL GEAR, OUTPUT BRGS, ASSEMBLED IAW REM 304, ADJUSTED BACKLASH & DISTANCE AS REQUIRED. COMPLIED WITH ASDR ALGA084133Seal · defectiveFOUND TAIL ROTOR GEARBOX SEAL DEFECTIVE AND WAS LEAKING. REPLACED SEAL WITH A NEW PART.SDR HEEA084655Shaft · wornTAIL ROTOR SHAFT HAS WORN PLATING. REPAIRED.SDR HEEA084396Seal · leakingGEARBOX INPUT SEAL LEAKING. REPAIRED.SDR HEEA084187Chip Detector · shortedCHIP PLUG INTERMITTENTLY SHORTS INTERNALLY. SCRAPPED.SDR 2003FA0001225Shaft · wornDURING ANNUAL INSPECTION, FOUND KNURLED NUT WORN BEYOND LIMIST. UPON REMOVAL OF THE KNURLED NUT AND TAIL ROTOR BALANCE WHEEL FOUND THREADS ON TAIL ROTOR GEARBOX OUTPUT SHAFT, UNDER BALANCE WHEEL, EXCESSIVELY WORN AND GALLED. CUSTOMERS PILOT REPORTED THAT THESDR HEEA084294Mount · separatedTAIL ROTOR GEARBOX MOUNT SEPARATED BEYOND LIMITS.SDR BAQA084080Stud · looseSTUD ON GEARBOX MOUNT IS WORKING LOOSE. REPLACED WITH SERVICEABLE UNIT.SDR CA030204015Chip Detector · shorted(CAN) IN CRUISE FLIGHT AT 5000 FT, TAIL ROTOR GEARBOX HOT/CHIP LIGHT CAME ON. FLIGHT CREW ASKED FOR AND RECEIVED IMMEDIATE DESCENT INTO CYYJ. THE AIRCRAFT LANDED AND WAS SHUTDOWN NORMALLY. THE ENGINEER REMOVED CHIP PLUG AND FOUND NO METAL. WHEN REINSTALLED THESDR CA031210007Bearing Race · incorrect(CAN) AT 300 HR. INSPECTION IT WAS NOTED THE OUTER RACE DID NOT HAVE A P/N, S/N OR A HEAT TREATMENT NR ETCHED ON IT. THIS WAS NOTED ON THE AD COMPLIANCE RECORD ALSO (BUT USED ANYWAY). MD HELICOPTERS SERVICE ENGINEERING WAS CONTACTED AND WE WERE INFORMED THAT ISDR HEEA083863Shaft · corrodedTAIL ROTOR GEARBOX OUTPUT SHAFT HAS EXCESSIVE PITTING ON SPLINES. OUTPUT CAP 406040408101, SN AFS1424 BEARING LINER WORN BEYOND LIMITS. REPAIRED.SDR HEEA083862Shaft · corrodedTAIL ROTOR GEARBOX OUTPUT SHAFT HAS EXCESSIVE PITTING ON SPLINES.SDR HEEA083856Spline Adapter · wornTAIL ROTOR ADAPTER HAS WORN SPLINES.SDR HEEA083550Sleeve · corrodedTAIL ROTOR GEARBOX SLEEVE IS CORRODED.SDR HEEA083182Dowel Pin · oversizedOVERSIZE DOWEL PIN INSTALLED IN TAIL ROTOR GEARBOX CASE AND THE EXPOSED PORTION WAS NOT MACHINED DOWN.SDR HEEA083049Coupling · corrodedINNER COUPLING AND OUTER COUPLING HAVE PITTING IN TOOTH PROFILE. (CORROSION ON MOUNT LUGS) REPAIRED.SDR HEEA083030Pitch Link · crackedTAIL ROTOR PITCH LINK SHAFT CRACKED ON OUTBOARD SURFACE. REPLACED WITH SERVICEABLE PART.SDR HEEA083029Pitch Link · wornTAIL ROTOR PITCH LINK WORN AT TOP OF LEVERS. REPLACED WITH SERVICEABLE PART.SDR HEEA083026Seal · leakingTAIL ROTOR GEARBOX SEAL LEAKING. REPLACED WITH SERVICEABLE PART.SDR HEEA083025Seal · leakingTAIL ROTOR GEARBOX SEAL LEAKING AND TWO DEEP GROOVES IN SPACER WHERE SEAL RIDES. REPLACED WITH SERVICEABLE PART.SDR HEEA082848Bearing · delaminatedTAIL ROTOR HEAD BEARING DELAMINATED. TO BE SENT TO VENDOR.SDR HEEA082847Seal · separatedSEAL CAME OUT. REPAIRED.SDR HEEA082846Bearing · wornTAIL ROTOR SPIDER HAS A WORN BEARING. TO BE SENT TO VENDOR.SDR CA021223005Gearbox · failed(CAN) AIRCRAFT WAS BEING USED FOR CAPTURE WORK ON WOLVES 14.5 KMS NORTH OF BANFF NATIONAL PARK. AIRCRAFT WAS IN PURSUIT OF A WOLF THAT WAS NETTED, AIRCRAFT WAS AT A HEIGHT OF 6-10 FT. ABOVE GROUND, TRAVELLING AT 20 MPH IN A CROSSWIND. AT THE TIME OF PROBLEM SDR HEEA082669Rotor Head · corrodedINPUT FLANGE AND SWASHPLATE AREA RUSTED. REPAIRED.SDR HEEA082620Shaft · damagedTAIL ROTOR GEARBOX SHAFT HAS PLATING PEELING. REPAIRED.SDR AUS20021247Gearbox · unserviceable(AUS) TAIL ROTOR GEARBOX CHIP LIGHT ILLUMINATED. GEARBOX WAS FLUSHED. THE AIRCRAFT WAS FLOWN AGAIN AND CHIP LIGHT ONCE MORE ILLUMINATED. TAIL ROTOR GEARBOX WAS THEN CHANGED.SDR YT2R631366Seal · leakingTAILROTOR GEARBOX SEAL, LEAKING UPON INSTALL.SDR ERAA081156Gearbox · misrepairedTAILROTOR GEARBOX HAS NO THREAD SEALANT ON STUDS. C/W PRELIMINARY INSPECTION AND FOUND NO OBVIOUS DEFECTS. SIGNED T/R G/B OUT ON HOLD BOARD. DRILLED OUT LOCKS ON 2 EA STUDS, APPLIED LOCTITE AND REINSTALLED BOTH STUDS WITH NEW LOCKS. ATTACHED ORIGINALYELLOW
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