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.

SDR HEEA968591Gear Box · making metalINTERMEDIATE GR BOX MAKES METAL.Nov 25, 1996 · N50293 · Bolkms BO105SSDR HEEA968520Spider · seal tornT/R SPIDER SEAL TORN.Nov 21, 1996 · N60951 · Snias AS350B2SDR HEEA968510Bevel Gear Set · scuffedBEVEL GEAR SET SCUFFED CAUSING METAL IN OIL.Nov 21, 1996 · N205UC · Bolkms BO105SSDR HEEA968507Bevel Gear Set · teeth wornGEAR TEETH WEARING AND PITTING. INTERNAL SPLINES WORN. REPLACED WITH SERVICEABLE GEARSET.Nov 21, 1996 · N911BR · Bolkms BO105SSDR HEEA968506Gear Splines · wornBEVEL GEAR INTERNAL SPLINES WORN. (PINION S/N 879 - BEVEL GEAR S/N 770) REPLACED WITH SERVICEABLE GEARSET.Nov 21, 1996 · N3534T · Bolkms BO105SSDR HCMA9670Lamification · tornREAR ROTOR LAMIFICATION IS TORN BEYOND LIMITS.Nov 19, 1996 · N992BH · Snias AS350B2SDR HAIHCMA0070Lamification · tornREAR ROTOR LAMIFICATIONS ARE TORN BEYOND LIMITS.Nov 19, 1996 · N992BH · Snias AS350B2SDR 97ZZZX2328Laminated Hinge · wornLAMINATED HINGE ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS FROM KIT 350A33-2153-00, CORRECTED PROBLEM.Nov 6, 1996 · N92LG · Snias AS350B2SDR 97ZZZX2330Laminated Hinge · wornLAMINATED HINGE ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH UNITS UNITS FROM KIT 350A33-2153-00, CORRECTED PROBLEM.Nov 1, 1996 · N94LG · Snias AS350B2SDR 97ZZZX2326Laminated Hinge · wornLAMINATED HINGE ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS FROM KIT 350A33-2153-00, CORRECTED PROBLEM.Oct 24, 1996 · N911LR · Snias AS350B2SDR HEEA968392Bearing · separationBEARING SEPARATION.Oct 18, 1996 · N6100R · Snias AS350B2SDR HEEA968391Tail Gear Box · plating flakeCHROME PLATING COMING OFF OUTPUT SHAFT.Oct 18, 1996 · N4000L · Snias AS350B2SDR HEEA968367Gear Box Assy · damagedT/R GR BOX RECEIVED DAMAGED. UPON INSTALLING GEARBOX, NOTICED INPUT FLANGE WAS NOT LINING UP AS IT SHOULD. ON CLOSER INSPECTION FOUND ONE OF 3 EARS OF FLANGE BENT BACK APPROXIMATELY 3/32". INSPECTED SHIPPING BOX AND FOUND INADEQUATE CLEARANCE OR PACKING BETOct 15, 1996 · Aerosp AS355F1SDR HEEA968208Gearbox · leaksLEAKS AT INPUT SEAL, OUTPUT AND PITCH CHANGE SHAFT WEAR ON PITCH CHANGE SHAFT AND SPLINES. REMOVED FROM AIRCRAFT N37074. SENT TO NAMPA VALLEY HELICOPTERS FOR EXCHANGE.Oct 10, 1996 · Aerosp SA316BSDR HEEA968193Shaft · defectiveSHAFT REMOVED FROM T/R GEARBOX S/N AFS2844 DUE TO IRREGULAR TRACK PATTERN.Oct 10, 1996 · Bell 206BELLSDR HEEA968192Pinion · defectiveREMOVED FROM T/R GEARBOX S/N AFS2844 DUE TO IRREGULAR TRACK PATTERN.Oct 10, 1996 · Bell 206BELLSDR HEEA968073Case Assy · corrodedCORROSION ON LUG OF IDLER CLEVIS ALL AROUND BOLT HOLE ON O.D. OF CLEVIS. REPLACED WITH SERVICEABLE PART.Oct 3, 1996 · N21498 · Bell 412SDR HEEA968072Sleeve Assy · corrodedSLEEVE ASSY IS CORRODED. (FOUND EXCESSIVE CORROSION SLEEVE IN AREA "A") REPLACED WITH SERVICEABLE PART.Oct 3, 1996 · N21498 · Bell 412SDR HEEA968071Shaft · corrodedSHAFT IS CORRODED.( FOUND EXCESSIVE CORROSION IN SPLINES "N" (REF. BHT 412 CR&0 SEC. 65-00-00 PAGE 133 FIG. 65-40) BEYOND LIMITS. REPLACED WTH SERVICEABLE SHAFT.Oct 3, 1996 · N1079U · Bell 212SDR HEEA968070Shaft · corrodedSHAFT IS CORRODED. (CORROSION IN BASE OF SPLINES AND BEHIND LAST SET OF SPLINES) REPLACED WITH SERVICEABLE PART.Oct 3, 1996 · N2298Z · Bell 412SDR HEEA968069Gear Box · corrodedGR BOX IS CORRODED. (CLEVIS ON CASE HAS CORROSION COMPLETELY AROUND BOLT HOLE. REPLACED WITH SERVICEABLE PART.Oct 3, 1996 · N2298Z · Bell 412SDR HEEA968009Gear Box · leaksLEAKS OIL FROM FRONT SEAL AND OUTPUT SHAFT, SEAL IS TORN.Oct 3, 1996 · N6100U · Snias AS350B2SDR HEEA968002Rod,Actuating · worn excessACTUATING ROD IS WORN EXCESSIVELY.Oct 2, 1996 · N60951 · Snias AS350B2SDR 96ZZZX5696Bevel Gearshaft · defectiveUNABLE TO GET CORRECT CONTACT PATTERN. ONLY A SPLIT CONTACT PATTERN.Sep 27, 1996 · N117M · Bolkms BK117A1SDR 96ZZZX5695Bevel Gear · defectiveUNABLE TO GET CORRECT CONTACT PATTERN. ONLY A SPLIT PATTERN.Sep 27, 1996 · N117M · Bolkms BK117A1SDR CA970311013Hinge · worn(CAN) LAMINATED HINGE DAMAGED AND WORN.Sep 9, 1996 · Snias AS350BASDR 96ZZZX5041Duplex Bearing · roughCOULD NOT BALANCE T/R DUE TO ROUGH BEARING GIVING FALSE SIGNALS TO BALANCE EQUIPMENT. REPLACED BEARING AND REINSTALLED GEARBOX ON AIRCRAFT AND BALANCED T/R IN NORMAL MANNER WITH GOOD RESULTS.Sep 4, 1996 · N11CQ · Bell 206B3SDR HEEA967754Case Asy · port missingT/R GEARBOX REMOVED DUE TO METAL IN OIL. FOUND OUTPUT DUPLEX BEARING P/N 212-040-456-001, S/N J6885, T.T. 1669:25 SPALLED. LUBRICATION PORT TO FEED BEARING NOT PRESENT IN ABOVE MENTIONED CASE ASSEMBLY CAUSING BEARING FAILURE. REPAIRED GEARBOX WITH NEW PART.Sep 3, 1996 · N3893P · Bell 412SDR HEEA967744Bearing · deterioratedRUBBER DETERIORATED.Sep 3, 1996 · N6100U · Snias AS350B2SDR HEEA967743Bearing · deterioratedRUBBER DETERIORATED.Sep 3, 1996 · N6100U · Snias AS350B2SDR HEEA967691Case Assy · port missingT/R GEARBOX REMOVED DUE TO METAL IN OIL. FOUND OUTPUT DUPLEX BEARING P/N 212-040-456-001, S/N J6885, T.T. 1669:25 SPALLED. LUBRICATION PORT TO FEED BEARING, NOT PRESENT IN ABOVE MENTIONED CASE ASSY, CAUSING BEARING FAILURE.Aug 22, 1996 · N3893P · Bell 412SDR HEEA967690Bearing · separationRUBBER SEPARATION. PART SCRAPPED LOCALLY.Aug 22, 1996 · N60951 · Snias AS350BSDR HEEA967689Bearing · delaminatingRUBBER SEPARATION. PART SCRAPPED LOCALLY.Aug 22, 1996 · N6097Z · Snias AS350B2SDR HCMA9652Lamification · torn rubberRUBBER IS TORN BEYOND LIMITS AND THERE IS NO "J" GAP.Aug 19, 1996 · N982BH · Snias AS350B2SDR 96ZZZX5750Bearing · damagedDAMAGE TO OUTER RACE FROM METAL CONTAMINATION.Aug 17, 1996 · N317MC · Bolkms BK117C1SDR HCMA9648Seal · defectiveMAGNETIC SEAL IS LEAKING.Aug 16, 1996 · N992BH · Snias AS350B2SDR HCMA9647Bearings · crackedBEARING CAUSED T/R FREQUENCY VIBRATIONS. WORN BEYOND LIMITS.Aug 16, 1996 · N972BH · Snias AS350B2SDR HCMA9644Spider · bindingT/R P/C SPIDER BINDING WHEN RIGHT PEDAL IS APPLIED.Aug 16, 1996 · N992BH · Snias AS350B2SDR HCMA9643Bearings · worn excessBEARING IS WORN EXCESSIVELY.Aug 16, 1996 · N862BH · Snias AS350BASDR HCMA9642Rear Rotor Lamif · crackedLAMIFICATION IS CRACKED.Aug 15, 1996 · N992BH · Snias AS350B2SDR HCMA9641Rear Rotor Lamif · crackedLAMIFICATION IS CRACKED.Aug 15, 1996 · N992BH · Snias AS350B2SDR HCMA9640Lamification · torn rubberRUBBER IS TORN BEYOND LIMITS.Aug 15, 1996 · N982BH · Snias AS350B2SDR HCMA9639Lamification · crackedREAR ROTOR LAMIFICATION IS CRACKED.Aug 15, 1996 · N972BH · Snias AS350B2SDR HCMA9638Bearings · worn excessBEARING IS WORN EXCESSIVELY.Aug 15, 1996 · N862BH · Snias AS350BASDR HCMA9637Bearings · worn excessBEARING IS WORN EXCESSIVELY.Aug 15, 1996 · N752BH · Snias AS350BASDR HCMA9635Bearing · worn excessBEARING IS WORN EXCESSIVELY.Aug 15, 1996 · N642BH · Snias AS350BASDR HCMA9634Lamification · crackedREAR ROTOR LAMIFICATION IS CRACKED.Aug 13, 1996 · N532BH · Snias AS350BASDR HCMA9633Lamification · crackedREAR ROTOR LAMIFICATION IS CRACKED.Aug 13, 1996 · N532BH · Snias AS350BASDR 96ZZZX4279Shaft Veny · pluggedRECEIVED NEW REPLACMENT PART FROM BELL. DURING RECEIVING INSPECTION, NOTICED .1250 INCH HOLE DRILLED IN SHAFT TO VENT GEARBOX WAS PLUGGED SOLID WITH GRAY COATING THAT WAS APPLIED TO INTERIOR OF SHAFT FOR CORROSION PROTECTION. SUBMITTER STATED THIS COULD POSSAug 10, 1996 · N7885S · Bell 47G5SDR HCMA9632Lamification · worn excessREAR ROTOR LAMIFICATION IS WORN EXCESSIVELY. REMOVED AND REPLACED.Aug 6, 1996 · N312B · Snias AS350BA
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