JASC 6220
Service difficulty reports · 2,052
Reports filed under 6220 · Main Rotor Head, 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 = '6220' 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 = '6220' 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 97ZZZX4213Stop Bearing · failedPILOT REPORTS VERTICAL VIBRATION AND RETURNED TO BASE. INSPECTION REVEALED 'BLUE' M/R SPHERICAL STOP BEARING, P/N 204A33-633 156, FAILED. REPLACED ALL THREE M/R SPHERICAL STOPS WITH P/N 704A33633-109. RUN-UP OPS CHECK GOOD.SDR 98ZZZX1402Idlercrank Brg · failedIDLERCRANK BEARING FAILURES FOUND DURING NORMAL INSPECTION.SDR 98ZZZX1401Idlercrank Brg · failedIDLERCRANK BEARING FAILURES FOUND DURING NORMAL INSPECTION.SDR 97ZZZX4470Frahm Assy · deterioratedLATERAL VIBRATION IN AIRCRAFT. FOUND ALL RUBBER PARTS DETERIORATED (ERASER TYPE WEAR) INSIDE FRAHM ASSEMBLY.SDR 98ZZZX1400Idlercrank Brg · failedIDLERCRANK BEARING FAILURES FOUND DURING NORMAL INSPECTION.SDR 98ZZZX1399Idlercrank Brg · failedIDLERCRANK BEARING FAILURES FOUND DURING NORMAL INSPECTION.SDR 97ZZZX4094Pin Boss · axial slippageDURING DAILY INSPECTION, NOTICED ONE M/R PIN SLIGHTLY UP ON YELLOW AND BLUE BLADE. UPON CLOSE EXAMINATION BY REMOVING M/R BLADES, FOUND THAT M/R PIN BOSSES HAD AXIALLY MOVED TO CAUSE PIN EXTRACTION DIFFICULTY AND SOME VIBRATIONS AS REPORTED EARLIER BY PILOT. SDR 97ZZZX3793Hub · crackedCRACK DISCOVERED DURING POST-FLIGHT INSPECTION. CRACK ON TOP SURFACE OF CENTER SECTION BETWEEN RESERVOIR MOUNT HOLE AND TIE BAR BOLT ACCESS HOLE. EXTENDS THROUGH RESERVOIR HOLE DOWN INTO WEB OF CENTER SECTION. ROTOR HUB OPERATED ON MJ022 IN 'LR' CONFIGURATISDR HEEA0010611Bearing · wornFACE OF BEARING IS WORN OFF. REPLACED WITH SERVICEABLE ROD END BEARING.SDR CA970731015Shim · incorrect(CAN) AIRCRAFT ROUGH IN HOVER AND CLUNKING NOISE HEARD ON SHUTDOWN. INSPECTION SHOWED INCORRECT SHIMMING OF STATIC STOPS ALLOWING FITTING TO ROTATE IN BORE OF YOKE WHICH POUNDED ONTO STATIC STOP, DAMAGING STATIC STOP. PROSEAL FOUND INSIDE YOKE ON RADIUS RISDR HEEA0010511Bearing · corrodedBEARING CORRODED. AT TIME OF CLEANING PRESERVATIVE FOR INSTALLATION FOUND CORROSION ON ROLLERS.SDR HEEA0010494Cone Lower · liner wornLOWER CONE TEFLON LINER WORN AND TORN.SDR HEEA0010480Hub · wont balanceUNABLE TO BALANCE M/R HUB ON AIRCRAFT.SDR HEEA0010419Damper · defectiveM/R ROTOR DAMPER INNER BUSHING CAVITY OVERSIZED.SDR 97ZZZX3545Starflex · debondedPILOT REPORTED MAIN ROTOR VIBRATION. INSPECTION REVEALED YELLOW STAR ARM BUSHING DE-BONDED AND MOVED OUTBOARD. FURTHER INSPECTION REVEALED CRACK UNDER BUSHING IN COMPOSITE MATERIAL. PART LASTED 90.5 HOURS AND IS LIFE LIMITED AT 2,220 HOURS. PREVIOUS PART LSDR HEEA0010390Cone Set · wornCONE SET IS WORN.SDR CA970722010Pin · unserviceable(CAN) INCORRECT PIN INSTALLED, SUBMITTER STATED A 206B PIN RATHER THAN A 206L PIN WAS INSTALLED.SDR CA970722012Stop · delaminated(CAN) SPERICAL STOP DELAMINATED TO MAX LIMITS.SDR HEEA0010372Starflex · crackedSTARFLEX CRACKED.SDR HEEA0010371Ring · pittedSEAL RIDE HAS UNACCEPTABLE PITTING AND GOUGES.SDR HEEA0010370Pin Strap · wrong partSERIAL NUMBER ETCHING ON PART DOES NOT MATCH WITH HISTORICAL RECORD WHICH READS DI21571.SDR 97ZZZX4406Frahm Damper · damagedPILOT REPORTED A ONE-TO-ONE VIBRATION. WHILE WORKING ON THE ROTOR VIBRATION, THE FRAHM DAMPER WAS FOUND DAMAGED. UPON REMOVING MAIN ROTOR COVER ASSEMBLY, NOTED ITEM 32 (LINER ASSEMBLY) HAD EXCESSIVE CONTACT WITH ITEM 17 (PAD ASSEMBLY). LINER ASSEMBLY WAS BRSDR 97ZZZX4087Bearing · debondedHUB ASSEMBLY CENTERING BEARING BEGINNING TO INDICATE SIGNS OF DEBONDING. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR HEEA0010282Spindle · bearing failedBEARING SEPARATED FROM SPINDLE.SDR HEEA0010273Hub · bearing spunHUB BEARING SPUN CAUSING WEAR IN LINER. REPLACED WITH SERVICEABLE HUB ASSY.SDR CA970807040Droop Ring · misinstalled(CAN) DROOP RING WAS FOUND TO BE INCORRECTLY INSTALLED BOTH DROOP RING AND FOLLOWERS WERE INSTALLED UPSIDE DOWN, CAUSING CONTACT BETWEEN THE RING AND LOWER SHOE OF THE MAIN ROTOR HUB. THE LOWER SHOE WAS DAMAGED.SDR HEEA0010194Bolt · missingDURING A GENERAL INSPECTION OF AIRCRAFT, FOUND ONE OF THE PILLOW BLOCK BOLTS MISSING FROM THE PILLOW BLOCK ASSEMBLY. INSTALLED 4 EACH NEW BOLTS AND NUTS AND A NEW BUSHING AND 3 NEW WASHERS WHERE BOLT WAS MISSING. SCRAPPED 3 EACH BOLTS.SDR HEEA0010129Bearing · wornSHOULDER OF THE BEARING WORN.SDR CA970630003Bearing · cracked(CAN) WHEN REPLACING GRIPS FOR TX FOUND BEARING WITH A CRACKED SEPARATOR.SDR 97ZZZX3600Flexure · debondedINSPECTION PRIOR TO INSTALLATION REVEALED SHEAR PAD TO BE DEBONDED. PART RECEIVED BAD FROM STOCK.SDR HEEA0010083Cone · scoredM/R HEAD LOWER CONE TEFLON SCORED.SDR 97ZZZX4129Link Assy · crackedMAIN ROTOR SYSTEM COLLECTIVE DRIVE LINK ASSY CRACKED. SEE AD 97-12-02 DATED 5-29-97 AND SB 900-056. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 97ZZZX4089Fretting Buffer · defectiveMAIN ROTOR SYSTEMS MAIN ROTOR HUB REMOVED TO FACILITATE OTHER MAINTENANCE. REPLACED FRETTING BUFFER WITH NEW UNIT, CORRECTED PROBLEM.SDR 97ZZZX4088Fretting Buffer · defectiveMAIN ROTOR SYSTEM MAIN ROTOR HUB REMOVED TO FACILITATE OTHER MAINTENANCE WITH NEW UNIT, CORRECTED PROBLEM.SDR CHI1801Pin · slippedROTOR HEAD WAS INSPECTED WHILE IN THE SHOP FOR ROUTINE MAINTENANCE. IT WAS NOTED THAT THE YELLOW ARM WAS STIFF WHEN MOVED DOWN ITS HORIZONTAL AXIS (FLAPPING). DISASSEMBLY SHOWED THE LAG BEARING RACE ON THE HORIZONTAL PIN HAD MOVED OUTBOARD TILL IT TOUCHED THSDR CA970618014Starflex · cracked(CAN) TWO CRACKS IN CENTER SECTION OF STAR, AREA G1 PER MWC 62..20.00.601, FIG. 3. CRACKS EXTENDED DOWNWARD 21 AND 25 MM RESPECTIVELY AND AROUND BOTTOM EDGE AND CONTINUED INBOARD 2 AND 3 MM RESPECTIVELY.SDR HAIHEEA9928Control Rod · corrodedTUBES CORRODED BEYOND LIMITS. REPLACED WITH SERVICEABLE TUBES.SDR HAIHEEA9927Control Rod · corrodedCORROSION FOUND AROUND COLLAR. REMOVED AND SCRAPPED CONTROL ROD. REPLACED WITH SERVICEABLE CONTROL ROD.SDR 97ZZZX4121Support · crackedDROOP SUPPORT CRACKED AT MAIN ROTOR HEAD ATTACH AREA ON 2 MAIN ROTOR BLADES. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 97ZZZX4120Support · crackedDROOP SUPPORT CRACKED AT MAIN ROTOR HEAD ATTACH AREA ON 2 MAIN ROTOR BLADES. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 97ZZZX4119Support · crackedDROOP SUPPORT CRACKED AT MAIN ROTOR HEAD ATTACH AREA ON 2 MAIN ROTOR BLADES. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 97ZZZX4072Support · crackedDROOP SUPPORT CRACKED AT MAIN ROTOR HEAD ATTACH AREA ON 2 MAIN ROTOR BLADES. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 97ZZZX4071Support · crackedDROOP SUPPORT CRACKED AT MAIN ROTOR HEAD ATTACH AREA ON 2 MAIN ROTOR BLADES. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 97ZZZX4070Striker Plate · crackedHUB ASSEMBLY DROOP SUPPORT CRACKED AT MAIN ROTOR HEAD ATTACH AREA ON 2 MAIN ROTOR BLADES. REPLACED WITH 5 EACH NEW UNITS, CORRECTED PROBLEM.SDR CA970626015Bearing · chafed(CAN) AT 100-HOUR INSPECTION, THE MAIN ROTOR TEETER HINGE BEARING WAS FOUND CHAFED AND ELONGATED.SDR HAIHEEA9833Frahm Assy · defectiveINTERNAL RUBBER BUMPER STRIP FELL OUT OF ASSEMBLY.SDR 97ZZZX4428Hub · corrodedDEFECT DISCOVERED AT 1,200 HOUR INSPECTION. FOUND PITTING CORROSION I SPLINES OF TRUNNION. SUBMITTER STATES MANUFACTURER'S RECOMMENDED LUBRICANT NOT SUFFICIENT. RECOMMEND A SUFFICIENT LUBRICANT FOR THIS APPLICATION. MANUFACTURER SPECIFIES MIL-C-16173 GRADSDR 97ZZZX4125Link Assy · bindingMAIN ROTOR SYSTEM COLLECTIVE DRIVE ASSY DEFECT. COLLECTIVE BINDING AT LOW PITCH SETTINGS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 97ZZZX4124Link Assy · bindingMAIN ROTOR SYSTEM LINK ASSY COLLECTIVE DRIVE. COLLECTIVE BINDING AT LOW PITCH SETTINGS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR HAIHEEA9814Hub Liner · pittedWHILE INSPECTING LOWER MAST BEARING, FOUND M/R HUB LINER PITTED.
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