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 HEEA0011734Bevel Gear Set · making metalBEVEL GEAR SET CAUSE OF METAL IN OIL.SDR 98ZZZX1580Bearing · delamiantedBEARING REMOVED DUE TO DELAMINATION IN EXCESS OF LIMITS. REPLACED WITH NEW PART.SDR HEEA0011537Bearing · separationBEARING SEPARATION.SDR CA971028009Gearbox · failed(CAN) TAIL ROTOR GEARBOX MAGNETIC CHIP DETECTOR ILLUMINATED DURING CRUISE JUST AFTER TAKEOFF. A LOT OF SHAVINGS AND CHIPS FOUND. PLUG CLEANED. AIRCRAFT RUN-UP, SHUTDOWN AND CHECKED. MORE METAL FOUND. GEARBOX SENT FOR CHECK.SDR HEEA0011495Spider · defectiveVIBRATION. T/R SPIDER DEFECTIVE.SDR HEEA0011491Chip Detector · faultyT/R GEARBOX OIL DRAINS WHEN CHIP DETECTOR PULLED.SDR HEEA0011484Bearing · wornT/R GRBOX BEARING WORN.SDR HEEA0011483Bearing · separationT/R GR BOX BEARING SEPARATION.SDR HEEA0011482Bearing · separatedT/R GR BOX BEARING SEPARATED.SDR HEEA0011467Tail Rotor Spide · wornT/R SPIDER BEARING WORN.SDR HEEA0011459Bearing · separationT/R GR BOX BEARING RUBBER SEPARATION.SDR HEEA0011362Gear Housing · defectiveMISSING ETCHED "B" DIMENSION.SDR 98ZZZX1643Bearing · delaminatedBEARING REMOVED DUE TO DELAMINATION IN EXCESS OF LIMITS. REPLACED WITH NEW BEARINGS.SDR 97ZZZX5080Bearing · mismanufacturedTOLERANCES TOO TIGHT, WOULD NOT FIT ON SHAFT CORRECTLY. REMOVED AND REPLACED.SDR HEEA0011127Bearing · separationBEARING SEPARATION.SDR HEEA0011037Housing · leakingT/R GEARBOX LEAKING OIL AT CONTROL HOUSING ASSEMBLY SEAL.SDR HEEA0011035Bearing · separationBEARING SEPARATION.SDR 97ZZZX4703Laminated Hinge · wornLAMINATED HINGE ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.SDR 97ZZZX4700Laminated Hinge · wornLAMINATED HINGE WORN. T/R EXPERIENCED 1.1 IPS VIBRATION AND 'J' GAPS WERE UNEVEN. REPLACED WITH 2 EACH NEW UNITS FROM KIT 350A33-2153-00, CORRECTED PROBLEM.SDR 97ZZZX4696Laminated Hinge · wornLAMINATED HINGE ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS FROM KIT 350A33-2153-00, CORRECTED PROBLEM.SDR CA971015046Gearbox · preloading(CAN) TAIL ROTOR GEARBOX PITCH CHANGE SHAFT PRE-LOADING TO ONE SIDE WHEN PITCH CHANGE LINKS ARE TORQUED CAUSING VIBRATION.SDR 98ZZZX1263Spherical Stop · defectiveBULGES IN T/R SPHERICAL STOP.SDR HEEA0010840Gearbox · leakingTAIL ROTOR GEARBOX IS LEAKING EXCESSIVELY FROM INPUT SEAL AND PITCH CHANGE SHAFT AT KNURL NUT AREA. REPLACED GEARBOX AND RETURNED AIRCRAFT TO SERVICE.SDR HEEA0010625Seal · leakingT/R GR BOX SEAL LEAKING. UNIT WAS RECEIVED 10-19-92 AS AN EVALUATION UNIT.SDR 97ZZZX3764Laminated Hinge · tornTAIL ROTOR GEARBOX HAS LAMINATED HINGE TORN,SDR HEEA0010544Seal · leakingLEAKING OIL. EVALUATION UNIT BEING RETURNED. SENT TO BELL HELICOPTER TEXTRON TO BE FORWARDED TO BELL-CANADA, ATTENTION: PIERRE ST. GEORGES. (UNIT ON EVALUATION PROGRAM THROUGH BELL HELICOPTER)SDR 97ZZZX3929Bearing · wornHIGH FREQUENCY DEVELOPED IN TAIL ROTOR, BEARING SET WORN. REPLACED WITH HEX BEARING SET.SDR 97ZZZX3544Bearing · mismanufacturedNEW REPLACEMENT BEARING RECEIVED WITH INSTRUCTIONS FROM MRC (BEARING MFG), AND HILLER SL UH12-25-1 DESCRIBING INSTALLATION INSTRUCTIONS WITH REGARDS TO THE FILING NOTCHES AND BEARING MARKINGS ON THE OUTER RACE. THESE INSTRUCTIONS ORIENT THE BEARING SO THE MAJSDR HEEA0010385Bearing · separatedBEARING SEPARATION.SDR HEEA0010151Spider · wornT/R SPIDER SLIDER BUSHINGS WORN.SDR HEEA0010150Spider · defectiveT/R SPIDER APPEARS TO RUN HOT.SDR HEEA0010136Bearing · separationT/R GR BOX BEARING SEPARATION.SDR HEEA0010134Bearing · crackedT/R GR BOX BEARINGS CRACKED.SDR CA970722014Trunnion · worn(CAN) PITCH CHANGE TRUNNION WORN BEYOND LIMITS.SDR HAIHCMA0129Lamifications · tornREAR ROTOR LAMIFICATIONS ARE TORN BEYOND LIMITS .SDR 97ZZZX2937Laminated Hinge · wornTAIL ROTOR HUB LAMINATED HINGES WORN BEYOND LIMITS.SDR CA970528012Seal · leaking(CAN) SEAL HAS LEAKED EXCESSIVELY SINCE INSTALLATION IN TAIL ROTOR GEARBOX.SDR HAIHEEA9910Bearing · separationBEARING SEPARATION.SDR HAIHEEA9908Bearing · separationBEARING SEPARATION.SDR 97ZZZX2827Laminate Hinge · crackedRUBBER LAMINATE IS CRACKED 180 DEGREES AROUND PART.SDR 97ZZZX2553Hub · bolt seizedDURING REMOVAL OF T/R HUB, HUB RETAINING BOLT WAS VERY HARD TO REMOVE. UPON INSPECTION OF BOLT, FOUND SIGNS THAT BOLT WAS INSTALLED WITH (RED) LOCTITE INSTEAD OF LOCTITE 242 (BLUE). MWC 65.20.00.401 PARA 4 STATES TO APPLY LOCTITE 242 (BLUE) TO THREADS. AFTESDR 97ZZZX2552Gearbox · chip lightON FINAL APPROACH, T/R CHIP LIGHT ILLUMINATED. FOUND EXCESSIVE CHIPS IN OIL. REMOVED GEARBOX FROM SERVICE.SDR 97ZZZX4135Spider Assy · wornEXCESSIVE MAIN SPIDER BEARING PLAY. UNIT INSTALLED, BUT WAS NOT RUN. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR HAIHEEA9758Gearbox · making metalINTERMEDIATE GR BOX MAKING METAL.SDR HAIHEEA9738Center Case · wornCENTER CASE TAIL ROTOR BORE WORN. CHECK INDICATION ON LOWER MOUNTING FLANGE AS MARKED.SDR HAIHEEA9707Case Assy · corrodedPOSSIBLE REPAIR DUE TO CORROSION AT MOUNTING LUGS.SDR HAIHCMA0120Lamifications · tornREAR ROTOR LAMIFICATIONS ARE TORN BEYOND LIMITS .SDR 97ZZZX4133Hinge · wornLAMINATED HINGE ELASTOMERS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS FROM KIT 350A33-2153-00, CORRECTED PROBLEM.SDR HAIHEEA9602Case Assy · defectiveGR BOX DEFECT. UNABLE TO OBTAIN ACCEPTABLE BACKLASH. READING BELOW LIMITS.SDR CA970505005Hinge · cracked(CAN) BLISTERS, CRACKS AND DELAMINATIONS IN BEARING RUBBER MOUNTS CAUSING AN INCREASE IN HIGH FREQUENCY VIBRATION.
Back to JASC 6520