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 HAIHEEA9423Bearing · failedT/R XMSN BEARING SEPARATION.SDR HAIHEEA9422Bearing · failedT/R XMSN BEARING SEPARATION.SDR 97ZZZX2481Sleeve · leakingINSPECTION FOUND T/R GEARBOX INPUT SHAFT SLEEVE LEAKING. REPLACED WITH NEW SLEEVE.SDR CA970421020Hinge · delaminated(CAN) TAIL ROTOR LAMINATED HINGE FOUND WITH EXCESSIVE CRACKS AND DELAMINATIONS.SDR CA970421021Hinge · delaminated(CAN) TAIL ROTOR LAMINATED HINGE FOUND WITH EXCESSIVE CRACKS AND DELAMINATIONS.SDR CA970409001Hinge · delaminated(CAN) OVER A PERIOD OF 5 HOURS, PILOT NOTED AN INCREASED VIBRATION. INSPECTION REVEALED DELAMINATED ELASTOMERS ON LAMINATED HINGE OF TAIL ROTOR. PART TC: 1,208.SDR HAIHEEA9254Spider · rough bearingT/R SPIDER HAS ROUGH BEARING.SDR CA970609003Seal · leaking(CAN) INPUT SEAL AREA WOULD NOT STOP LEAKING . FOUR SEALS AND SPACERS CHANGED WITH NO SUCCESS.SDR HAIHEEA9248Case Assy · defectiveUNABLE TO OBTAIN PROPER BACKLASH ON BOTH CASES. SERIAL NUMBERS REMOVED AFS1923 AND AFS1941. RECEIVED ON INV.# I100422145 AND I100419427. SENT TO BELL HELICOPTER TEXTRON FOR CREDIT AGAINST ORIGINAL PURCHASE.SDR CHI1752Intermed Gearbox · crackedUPON INSPECTION IAW COLUMBIA HELICOPTERS SB 54-65-2, THE LEFT LOWER INTERMEDIATE GEARBOX MOUNT LUG WAS FOUND CRACKED. THIS WAS FOUND BY FLUORESCENT PENETRANT AND CONFIRMED BY EDDY CURRENT INSPECTIONS. THE CRACK APPEARED TO ORIGINATE AT THE CORNER OF THE LUG SDR HAIHEEA9232Control · wornT/R GR BOX CONTROL WORN.SDR HAIHCMA0101Lamification · tornREAR LAMIFICATIONS ARE TORN BEYOND LIMITS AND THERE IS NO "J" GAP.SDR HAIHCMA0100Lamifications · tornREAR ROTOR LAMIFICATIONS ARE TORN BEYOND LIMITS AND THERE IS NO "J" GAP.SDR HAIHCMA0099Lamification · tornREAR ROTOR LAMIFICATIONS ARE TORN BEYOND LIMITS.SDR 97ZZZX2319Laminated Hinge · wornLAMINATED HINGE ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS FROM KIT 350A33-2153-00, CORRECTED PROBLEM.SDR CA970421044Gearbox · leaking(CAN) INPUT SEAL LEAKING. 5 ATTEMPTS AT SEAL REPLACEMENT COULD NOT STOP GEARBOX LEAKING, GEARBOX REPLACED.SDR 97ZZZX2329Laminated Hinge · wornLAMINATED HINGE ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS FROM KIT 350A33-2153-00, CORRECTED PROBLEM.SDR HEEA979148Bearing · separationBEARING SEPARATION.SDR 97ZZZX1387Bearing · damagedBEARING WAS INSTALLED ON GEARSHAFT, P/N 4639311043 MMIR FORM NR 78853B, AND GEAR WAS FOUND BAD. BEARING WAS DAMAGED DURING REMOVING IAW BK117REM305 AND MUST BE REPLACED.SDR 97ZZZX1386Bevel Gearshaft · defectiveCOULD NOT GET A GOOD BACKLASH ON CONTACT PATTERN TOGETHER AS REQUIRED BY CURRENT BK117REM305 MANUAL. PART CAME WITHOUT MANUFACTURER'S CONTACT PRINTS MADE AT MANUFACTURING.SDR 97ZZZX1385Bevel Gear · defectiveCOULD NOT GET A GOOD BACKLASH AND CONTACT PATTERN TOGETHER AS REQUIRED BY CURRENT BK117REM305 MANUAL. PART CAME WITHOUT MANUFACTURER'S CONTACT PRINTS MADE AT MANUFACTURING.SDR 97ZZZX1380Bearing · damagedSCORING ON BEARING ROLLERS, BEARING WAS RECEIVED NEW FROM AEC.SDR HEEA979111Rod · bearing wornBEARING WORN BEYOND LIMITS.SDR HEEA979008Bearing · wornBEARINGS WORN.SDR 97ZZZX1381Bearing · damagedDAMAGE ON ROLLERS. RECEIVED AS NEW PART FROM AMERICAN EUROCOPTER.SDR CA970219016Gearbox · making metal(CAN) CHIPS FOUND ON DETECTOR DURING 100 HOUR INSPECTION.SDR 97ZZZX1383Bearing · damagedFOUND DAMAGE ON ROLLER. BEARING WAS RECEIVED NEW, SERVICEABLE FROM AMERICAN EUROCOPTER.SDR 97ZZZX1382Bearing · damagedDAMAGE ON ROLLERS. BEARING WAS RECEIVED AS NEW, SERVICEABLE FROM AMERICAN EUROCOPTER.SDR 97ZZZX2320Laminated Hinge · wornELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS FROM KIT 350A33-2153-00, CORRECTED PROBLEM.SDR HEEA978916Bearing · separationBEARING SEPARATION.SDR HEEA978894Bearing · deterioratedRUBBER DETERIORATING.SDR HEEA978893Bearing · separationBEARING SEPARATION.SDR CA970121007Output Shaft · worn(CAN) UPON DISASSEMBLY OF T/R GEARBOX FOR MIDLIFE INSPECTION, THE SEAL JOURNAL AREA OF THE OUTPUT SHAFT WAS FOUND TO BE SEVERELY WORN TO A DEPTH OF 0.20 INCHES IN A V-SHAPED UNDERCUT FOR THE ENTIRE CIRCUMFERENCE OF THE SHAFT. THIS WORN AREA IS DIRECTLY ADJACENSDR HEEA978850Bearing · defectiveUPON COMPLYING WITH A 300 HOUR/3 MONTH T/R GEARBOX PITCH CHANGE MECHANISM LUBE, FOUND GREASE ZERT ON PITCH CHANGE HOUSING WOULD NOT ACCEPT GREASE. DISASSEMBLED PITCH CHANGE MECHANISM. ON INVESTIGATION FOUND BEARING 206-011-731-001 IN PITCH CHANGE HOUSING DID SDR HEEA978827Gear · defectiveT/R GR BOX GEARS RECEIVED WITH DEFECTIVE TOOTH SURFACES (BEVEL).SDR 97ZZZX958Bearing · mismanufacturedTAIL ROTOR GEARBOX PITCH CHANGE MECHANISM WOULD NOT TAKE GREASE. BELL REPRESENTATIVE HAS CONFIRMED THAT BEARING RACE DID NOT HAVE REQUIRED HOLE. BELL HAS CHANGED BEARING MANUFACTURERS. THIS BEARING IS FROM NEW MANUFACTURER. VENDOR: PITCH LIGN RBC. VENDORSDR 97ZZZX2327Laminated Hinge · wornLAMINATED HINGE ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS FROM KIT 350A33-2153-00, CORRECTED PROBLEM.SDR HEEA968790Bearing · separationBEARING SEPARATION.SDR HEEA968789Bearing · separationBEARING SEPARATION .SDR HEEA968788Bearing · crackedRUBBER CRACKED.SDR HEEA968787Bearing · crackedRUBBER CRACKED.SDR HEEA968786Bearing · wornWORN RUBBER BEARINGS.SDR HEEA968784Spider · bushing bindingT/R SPIDER INBOARD SPLIT BUSHINGS BINDING UP ON SHAFT.SDR HEEA968783Spider · bearing looseT/R SPIDER LOOSE BEARING-SLINGING GREASE.SDR 97ZZZX1375Gearbox · wrong partGEARBOX WAS REMOVED FROM BK117, S/N 7146, AND ASB BK117-10-109 WAS NOT C/W DURING OVERHAUL. THIS GEARBOX WAS TO BE USED ON A BO105S, S/N 2033, AND IS NOT ALLOWED TO BE IAW THIS ASB.SDR HEEA968733Seal · crackedMAGNETIC SEAL UNIT CRACKED.SDR HEEA968680Gear Box Assy · making metalT/R GR BOX MAKING METAL.SDR HEEA968679Spider · seals failedSEALS BAD ON BOTH ENDS OF SPIDER.SDR HEEA968674Gear Box · making metalINTERMEDIATE GR BOX MAKING METAL, FRONT SEAL LEAKS.SDR 97ZZZX903Gearbox · defectiveREPLACED DUE TO NUMEROUS ALIGNMENT BEARING CHANGES. REPLACED WITH NEW T/R GEARBOX ASSY.
Back to JASC 6520