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.

SDR CA960614004Bearing · loose(CAN) THE TEFLON LINING ON THE INNER RACE OF THE BEARING IS BREAKING OUT ALLOWING EXCESSIVE PLAY OF THE BEARING.May 12, 1996 · Boeing 1072SDR HEEA967141Yoke · bearing failureMAIN ROTOR REMOVED FOR 1200 HOUR INSPECTION. (BEARING JOURNALS BREAKING DOWN) REPLACED WITH SERVICEABLE PARTS.May 8, 1996 · N2145C · Bell 206B3SDR HEEA967101Bolt · coat flakeTUNGSTEN COATING FLAKING OFF. SENT TO BELL HELICOPTER TEXTRON FOR INSPECTION AND REPAIR.May 6, 1996 · N3893P · Bell 412SDR HEEA967100Cone · scoredLOWER CONE TEFLON COATING SCORED.May 6, 1996 · N3893P · Bell 412SDR ERAA96231Bearing · wornBEARINGS WORN BEYOND LIMITS.May 3, 1996 · N164EH · Bell 412SDR ERAA96230Bearing · wornBEARINGS WORN BEYOND LIMITS.May 3, 1996 · N164EH · Bell 412SDR HEEA967093Grip · grease leakGREASE LEAKING. AT DISASSEMBLY FOUND RETAINERS UNBONDED. REBONDED WITH NEW EXCLUDERS AND ORINGS. S/N A5317 & A5310May 2, 1996 · N2764F · Bell 206L1SDR HEEA967092Grip · grease leakGREASE LEAKING FROM BOTH GRIPS. S/N A6065&A6067May 2, 1996 · N5742N · Bell 206L1SDR CA960619013Freq Adapter · split(CAN) 3/4" SPLIT DEVELOPED ON AFT SIDE OF FREQUENCY ADAPTER IN ELASTOMERICS.May 2, 1996 · Snias AS350BSDR 96ZZZX3237Hub · crackedWHILE C/W AD 73-20-03 10/30/73, DYE PEN AND VISUAL INSPECTION OF M/R HUB, A CRACK WAS FOUND ABOUT .75 INCHES LONG. M/R HUB WAS REMOVED AND SCRAPPED AND A SERVICEABLE ZERO TSO M/R HEAD ASSY WAS INSTALLED AND AIRCRAFT WAS RETURNED TO SERVICE.Apr 30, 1996 · N58BA · Hiller UH12DSDR ERAA96228Bearing · excess playBEARINGS HAVE EXCESS AXIAL & RADIAL PLAY.Apr 22, 1996 · N417EH · Bell 412SDR ERAA96227Bearing · excess playBEARINGS HAVE EXCESS RADIAL AND AXIAL PLAY.Apr 22, 1996 · N417EH · Bell 412SDR CA960502060Main Rotor Assy · seized(CAN) DURING A 100 HOUR INSPECTION, IT WAS NOTICED THAT ONE OF THE GRIP GREASE SEALS ON THE M/R ASSEMBLY WAS FURTHER OUTBOARD ON ONE SIDE OF THE YOKE. UPON DISASSEMBLY OF THE ASSEMBLY ONE FITTING COULD NOT BE REMOVED WITH THE TOOLS AVAILABLE.Apr 19, 1996 · Bell 206LSDR 96ZZZX5677Bushing · wornVIB ABSORBER BUSHING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 4 EACH NEW UNITS, CORRECTED PROBLEM.Apr 17, 1996 · N586BH · Bolkms BK117A4SDR HEEA966998Damper Assy · defectiveFLUID CONTAMINATION AND GLASS IS UNREADABLE.Apr 15, 1996 · N1079U · Bell 212SDR HEEA966997Damper Assy · defectiveFLUID CONTAMINATION AND GLASS IS UNREADABLE.Apr 15, 1996 · N1079U · Bell 212SDR HEEA966978Yoke · bearing failedDISASSEMBLED TO COMPLY WITH 1200 HOUR INSPECTION. FOUND YOKE BEARING JOURNAL AND TRUNNION RACES BREAKING DOWN. SCRAPPED PARTS LOCALLY. ALSO SCRAPPED BEARINGS (4 EACH) P/N 206-011-113-001 AND (2 EACH) P/N 206-011-111-001.Apr 10, 1996 · N1076Y · Bell 206L1SDR 96ZZZX1809Bolt · brokenFOUR BOLTS THAT SECURE THE MAIN ROTOR STARFLEX TO THE MAIN ROTOR MAST WERE FOUND BROKEN DURING TROUBLESHOOTING OF AN OUT-OF-BALANCE CONDITION WITH THE MAIN ROTOR SYSTEM. THERE ARE A TOTAL OF 12 BOLTS IN THE SYSTEM. AN ADDITIONAL 3 BOLTS FAILED WHEN THE SYSTEApr 8, 1996 · N376E · Aerosp AS355F1SDR 96ZZZX1808Bolt · brokenFOUR BOLTS THAT SECURE THE MAIN ROTOR STARFLEX TO THE MAIN ROTOR MAST WERE FOUND BROKEN DURING TROUBLESHOOTING OF AN OUT-OF-BALANCE CONDITION WITH THE MAIN ROTOR SYSTEM. THERE ARE A TOTAL OF 12 BOLTS IN THE SYSTEM. AN ADDITIONAL 3 BOLTS FAILED WHEN THE SYSTEApr 8, 1996 · N376E · Aerosp AS355F1SDR CA960503103Latch Fitting · cracked(CAN)DURING OVERHAUL OF MAIN ROTOR HUB ASSEMBLY, A 3/4" CRACK WAS FOUND IN ONE EAR OF LATCH FITTING. TTSN OF MAIN ROTOR HUB WAS 12668 HOURS.Apr 4, 1996 · Bell 206BSDR AU960748Rotor Hub · cracked(AUS) MAIN ROTOR HUB CRACKED IN AREA OF THREADED CUFF AND TRUNNION BOLTHOLE EXTENDING DOWN THE INNER HUB SURFACE - CRACK LENGTH APPROXIMATELY 6.35MM (0.25IN) - FOUND DURING INSPECTION IAW AD/HIL12/22AApr 2, 1996 · Hiller UH12ESDR 96ZZZX2194Bolt · looseDURING DAILY INSPECTION, MECHANIC NOTED 2 EACH PILLOW BLOCK BOLTS, PN 206-310-005-101, LOOSE (TORQUE AT 55 INCHES/POUNDS), DIAGONALLY OPPOSED. DURING LAST 100-HOUR INSPECTION (89.0 TSI) BOLTS WERE FOUND PROPERLY TORQUED. RETORQUED PILLOW BLOCK BOLTS IAW BELLApr 2, 1996 · N125NH · Bell 206BSDR 96ZZZX1973Pivot Bearing · plate wornDURING ANNUAL INSPECTION, 3 STRIKER PLATES FOUND WORN BEYOND LIMITS AND ALL 5 PIVOT BEARINGS WORN FROM .030 INCH TO .040 INCH BEARING TO PART NUMBER FIT.Apr 2, 1996 · N3115Y · Hughes 369DSDR CA960412010Drag Brace · cracked(CAN) DURING A SCHEDULED 1200 HOUR INSPECTION OF THE DRAG BRACE ASSEMBLY, THE NUT 204-011-144-003 WAS FOUND TO HAVE A LONGTITUDINAL CRACK ACROSS THE OUTSIDE SURFACE.Apr 1, 1996 · Bell 205A1SDR 96ZZZX2274Lead/Lag Link · crackedPILOT FOUND BROKEN LINK ON PRE-FLIGHT. REMOVED BROKEN LINK AND INSTALLED NEW. FOUND LINK SHIMS .024 INCH OVER MAXIMUM. REMOVED SHIMS AS REQUIRED TO OBTAIN CORRECT DIMENSION. NO FURTHER OCCURRENCE.Apr 1, 1996 · N5205G · Hughes 369FSDR 96ZZZX1970Strap Assy · brokenAT ACFT TT: 4,378.1 RS, MARCH 30, 1996, DURING POST-FLIGHT INSPECTION OF M/R HUB ASSY - TWO BROKEN STRAPS WERE NOTED ON YELLOW BLADE PITCH HOUSING, STRAPS WERE BROKEN AT LEAD-LAG BOLT STACK-UP. NO BROKEN STRAPS ARE ALLOWED IN THIS AREA. M/R HUB WAS REMOVED FMar 30, 1996 · N530R · Hughes 369FSDR HEEA966864Grip · wornASSEMBLY LEAKING GREASE, DUE TO RETAINER SPINNING INSIDE OF GRIP. PRO SEAL UNBONDED. WORN AREA IN GRIP. MIN .007 MAX. .012 DEPTH. REPLACED WITH SERVICEABLE PARTS.Mar 20, 1996 · N206FS · Bell 206L3SDR HEEA966844Yoke · bearing failASSEMBLY CAME IN DUE TO TRUNNION PIN RETIREMENT. FOUND TRUNNION BEARINGS BREAKING DOWN AND THRUST PLUGS BREAKING DOWN. REMOVED GRIPS DUE TO SEAL LEAK AND FOUND OUTBOARD BEARING JOURNALS BREAKING DOWN. REPLACEMENT PART INFORMATION LISTED BELOW: 2 EACH, BEARINMar 13, 1996 · N2133X · Bell 206L1SDR CA960401001Starflex · cracked(CAN)STARFLEX FOUND CRACKED IN MIDDLE OF ARM. NEW STAR INSTALLED.Mar 13, 1996 · Snias AS350DSDR 96ZZZX1804Flange · loose bushingUPON REMOVAL OF RED AND YELLOW STAR-FLEX ASSEMBLY, ONE BUSHING WAS FOUND UNSCREWED FROM THE UPPER ARM. THE CAUSE MAY BE EITHER A POOR BOND OF BUSHING TO STAR-FLEX ARM OR A POOR CLEANING OF BOLT PRIOR TO USE OF NEW MASTONOX AT LAST BEARING CHANGE. SUBMITTER SMar 12, 1996 · N6095U · Snias AS350B2SDR 96ZZZX1969Starflex · splinteredACFT TT: 6,360.8 HRS. YELLOW AND BLUE LEGS OF STARFLEX SPLINTERED AT MIDPOINT OF LEADING EDGES AND TOP SIDE. BEYOND LIMITS PER AS350 MWC 62-20-00-601, PAGE 2. STARFLEX IS A 2,200-HOUR RETIRE AND HAD 1,961.5 HRS AT OCCURRENCE. STARFLEX WAS REMOVED AND REPLMar 7, 1996 · N216LA · Snias AS350B1SDR ERAA96209Lower Cone Seat · pittedLOWER CONE SEAT THAT WAS OVERHAULED WITH ZERO T.S.O. REC'D IN WITH PITTING AROUND DRIVE PIN HOLES.Mar 6, 1996 · Bell 412SDR 96ZZZX1919Spherical Stop · wornMAIN ROTOR ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Mar 1, 1996 · N6099P · Snias AS350B2SDR 96ZZZX1918Spherical Stop · wornMAIN ROTOR ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Mar 1, 1996 · N6099P · Snias AS350B2SDR 96ZZZX1917Spherical Stop · wornMAIN ROTOR ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Mar 1, 1996 · N6099P · Snias AS350B2SDR 96ZZZX1916Spherical Stop · wornMAIN ROTOR ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Mar 1, 1996 · N3593X · Snias AS350BSDR 96ZZZX1915Spherical Stop · wornMAIN ROTOR ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Mar 1, 1996 · N3593X · Snias AS350BSDR 96ZZZX1914Spherical Stop · wornMAIN ROTOR ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Mar 1, 1996 · N3593X · Snias AS350BSDR HEEA966782Damper · oil defectiveDAMPER HYDRAULIC FLUID DARK, UNABLE TO SEE PIN.Feb 28, 1996 · N5736J · Bell 212SDR HEEA966726Bearing · blisteredBEARING IS BLISTERED AND SEPARATING.Feb 26, 1996 · N60951 · Snias AS350B2SDR AU960353Hub · cracked(AUS) MAIN ROTOR HUB CRACKED - FOUND DURING INSPECTION IAW AD/HIL12/22AFeb 25, 1996 · Hiller UH12ESDR HEEA966708Latch · mis mfgBEVEL FOR LATCH BOLT NUT MACHINED WRONG (TOO SHALLOW)Feb 20, 1996 · N41128 · Bell 206L3SDR 96ZZZX1059Trunnion · roughM/R TRUNNION ROUGH AND BINDING. REPLACED WITH NEW FIXTURE.Feb 20, 1996 · N221GP · Bell 206B3SDR AU960319Bearing · damaged(AUS) MAIN ROTOR BLADE PITCH LINK ELASTOMERIC BEARING FAILED AROUND INNER RACEFeb 19, 1996 · Bell 412SDR AU960318Spindle · failed(AUS) MAIN ROTOR HEAD SPINDLE ASSEMBLY ELASTOMERIC DAMPER BEARING SHEAREDFeb 16, 1996 · Bell 412SDR 96ZZZX1028Vertical Hinge · crackedCRACK FOUND DURING OVERHAUL OF MAIN ROTOR HEAD. VERTICAL HINGE WAS MAGNETIC PARTICAL. INSPECTED PER OVERHAUL MANUAL. CRACK WAS LOCATED ABOUT .75 INCH BELOW THREADED AREA IN 2.6238 BEARING JOURNAL. THE CRACK WAS ABOUT .75 INCH LONG, GOING UP THROUGH THE THREFeb 15, 1996 · N1048Y · Skrsky S61ASDR 96ZZZX1082Frame · mismanufacturedDURING INSTALLATION OF STABILIZER BAR, MECHANIC NOTICED THE BOLT THAT ATTACHES DAMPER CONTROL ARM TO THE STABILIZER BAR FRAME WAS TOO SHORT. FURTHER INVESTIGATION REVEALED THE STABILIZER FRAME WAS APPROXIMATELY .125 INCH THICKER AT THE ATTACHMENT POINT THAN OFeb 14, 1996 · Bell 212SDR HEEA966678Grip · defectiveM/R HUB REMOVED DUE TO GREASE LEAKAGE. AT DISASSEMBLY FOUND SEAL RETAINER P/N 206-011-129-003 UNBONDED CAUSING LEAK IN GRIP. FOUND RETAINER SEAT WORN. ALSO FOUND TRUNNION EXCESSIVELY TIGHT. FOUND THRUST PLUGS BREAKING DOWN.Feb 9, 1996 · N7074W · Bell 206LSDR HEEA966644Damper · worn excessivelyDAMPER IS WORN EXCESSIVELY. (CYLINDER HAS WEAR)Feb 6, 1996 · N22342 · Skrsky S76ASDR HEEA966609Bolt · defectiveBOLT COATING CHIPPING.Feb 5, 1996 · N6559Z · Bell 412
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