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 ALGA2012012500023Bearing · separatedMAIN ROTOR HUB HAS A SEPARATED BEARING.SDR ALGA2012012312412Adapter · corrodedMAIN ROTOR HUB ADAPTER CORRODED BEYOND LIMITS.SDR ALGA2012012311412Adapter · corrodedMAIN ROTOR HUB ADAPTER CORRODED BEYOND LIMITS.SDR ALGA2012012310412Adapter · corrodedMAIN ROTOR HUB ADAPTER CORRODED BEYOND LIMITS.SDR ALGA2012012392412Adapter · corrodedMAIN ROTOR HUB ADAPTER CORRODED BEYOND LIMITS.SDR ALGA2012012382412Grip · corrodedMAIN ROTOR HUB GRIP CORRODED BEYOND LIMITS.SDR ALGA2012012372412Grip · corrodedMAIN ROTOR HUB GRIP CORRODED BEYOND LIMITS.SDR ALGA2012012362412Grip · corrodedMAIN ROTOR HUB GRIP CORRODED BEYOND LIMITS.SDR ALGA2012012352412Pitch Horn · corrodedMAIN ROTOR HUB PITCH HORN CORRODED BEYOND LIMITS.SDR ALGA2012012342412Pitch Horn · corrodedMAIN ROTOR HUB PITCH HORN CORRODED BEYOND LIMITS.SDR ALGA2012012332412Pitch Horn · corrodedMAIN ROTOR HUB PITCH HORN CORRODED BEYOND LIMITS.SDR ALGA2012012322412Pitch Horn · corrodedMAIN ROTOR HUB PITCH HORN HAS CORROSION BEYOND LIMITS.SDR CA120123011Bearing · sheared(CAN) DURING THE 48 MONTHS INSPECTION, THE AMO CARRYING OUT THE INSPECTION NOTICE ON DISSASSEMBLY OF THE MAIN ROTOR HEAD, 1 OF THE ELASTOMERIC BEARINGS HAD BECOME SEPARATED AT MORE THAN 270 DEGREES AROUND WITH ONLY A SMALL AMOUNT OF ELASTOMER STAYING CONNECTEDSDR ALGA2012011711712Fitting · corrodedFITTING HAS PITTING CORROSION BEYOND REPAIRABLE LIMITS.SDR CA120116005Spring · corroded(CAN) DURING A 600 HRS INSPECTION, THE COLLECTIVE SPRING ROD ANTICIPATOR WAS FOUND HARD TO OPERATED DUE TO INTERNAL CORROSION.SDR ALGA2012011641712Ring · corrodedRING HAS PITTING CORROSION BEYOND REPAIRABLE LIMITS.SDR ALGAR5472122711Pitch Horn · corrodedPITCH HORN, CORRODED BEYOND LIMITS.SDR CA111130011Arm · damaged(CAN) UPON INSPECTION OF THE ARM ASSY, IT WAS FOUND THAT THE INNER SURFACE AT THE AREA SURROUNDING THE FLOATING BUSHING HAD SEVERE MECHANICAL DAMAGE. DAMAGE WAS FOUND TO 50 PERCENT OF THE CIRCUMFERENCE OF THE AFFECTED AREA.SDR CA111125008Bearing · separated(CAN) ON INSPECTION, ELASTOMERICS OF BEARING FOUND SEPARATED FROM THE CENTER MOUNT. BEARING WAS COMPLETELY UNSERVICEABLE.SDR CA111026006Bearing · delaminated(CAN) BEARING FOUND DELAMINATED DURING DAILY INSPECTION.SDR CA111026003Bearing · debonded(CAN) WHILE CARRING OUT A DAILY CHECK, A LITTLE RUBBER AROUND THE SPINDLE OF THE SHEAR BEARING. FURTHER INVESTIGATION LEAD TO THE DEBONDING OF THE RUBBER COMPOUND TO THE CENTER SPINDLE.SDR CA110916008Bearing · delaminated(CAN) THE ENGINEER WAS TROUBLESHOOTING A MAIN ROTOR VIBRATION WHEN IT WAS DISCOVERED VISUALLY, A DELAMINATION OF THE RUBBER COMPOUND OF THE SHEAR BEARING, S/N LK14771, TO SPINDLE.SDR CA111014001Bearing · delaminated(CAN) BEARING FOUND DELAMINATED AROUND FULL CIRCUMFERENCE OF BEARING ASSY.SDR CA110826008Bearing · delaminated(CAN) DURING A 25 HR/30 DAY SCHEDULED INSPECTION, MAINTENANCE PERSONNEL FOUND THE DAMPER BEARING, LOCATED ON THE INBOARD SIDE OF THE SPINDLE ASSEMBLY TO BE COMPLETELY DELAMINATED AROUND ITS FULL CIRCOMFERENCE. THE BEARING ITSELF WAS DELAMINATED INTERNALLY AS ASDR TRBA201120906Interface Unit · inoperativeTHE CREW REPORTED THAT ENGINE NR 2 WENT TO 99.8 PERCENT NP WHILE IN CLIMB OR CRUISE. NP NEVER WENT ABOVE 100 PERCENT. THE ACFT RETURNED TO DEPARTURE AND LANDED WITHOUT INCIDENT. THE ACFT WAS REMOVED FROM SERVICE. R & R ENGINE NR 2 PIU IAW JIC 61-21-82. THSDR CA110610009Freq Adapter · failedDURING A MAJOR INSPECTION, DISCOVERED THE FREQUENCY ADAPTER WAS INCORRECT (TOO LONG). PILOT HAD JUST REPORTED A SERIOUS VIBRATION ON THE GROUND. REMOVED THE FREQUECY ADAPTER AND FOUND THAT 1 OF THEM HAD STRETCHED AND REQUIRED A COMPLETE TURN IN ON THE RODSDR CA110603008Fitting · crackedTHIS PART WAS INSPECTED IAW MFG ASB 212-10-142 B. DURING THE NDT INSP A CRACK WAS FOUND IN THE AREA HIGHLIGHTED BY THE ASB. THE PART HAS BEEN REMOVED FROM SERVICE AND IS WAITING FOR EVALUATION.SDR CA110527005Damper · delaminatedUPON RETURNING FROM THE FLIGHT, THE PILOT ADVISED MX OF "LATERAL VIBE IN HELICOPTER. VERY NOTICEABLE AT HIGH POWER SETTINGS." UPON INSP, MX HAD FOUND THAT THE DAMPER BEARING, LOCATED ON THE INBD SIDE OF THE SPINDLE, HAD DELAMINATED FROM THE SPINDLE. (THE SPINDSDR CA110530008Elastomer · delaminatedWHILE DOING A DAILY CHECK OF THE MAIN ROTOR HEAD ASSY IT WAS NOTICED THAT THERE WAS A DELAMINATION OF THE ELASTOMERIC BEARING TO THE SPINDLE. WE ARE PRESENTLY REMOVING THE ELASTOMERIC BEARING.SDR CA110519005Bolt · cracked(CAN) DURING ROUTINE INSPECTION, IT WAS NOTICE THE EXPANDABLE BLADE BOLT EXHIBIT "CRACK LIKE" INDICATIONS. INDICATIONS WERE NOTICED ON THE CAM HANDLE DUE TO CONTACT WITH CENTER SHAFT WHEN IN FULL OPENNED POSITION.SDR CA110518003Bearing Race · failedBEARING RACE FAILURE DISCOVERED AT 1200 HR INSPECTION. GRIP CONTAINING RACE WAS CONTAMINATED WITH METAL FLAKES.SDR CA110518002Grip · unserviceableREQUIRED UT INSPECTION SHOWED CRACK INDICATIONS. GRIP WAS SENT TO MFG FOR EVALUATION. EVALUATION AS FOLLOWS, "GRIP WAS SENT IN FOR UT INSP FOR CRACK INDICATION, INSPECTED WITH BUSHINGS INSTALLED & REMOVED. INSPECTED BORES FOR DIAMETER AND FOUND LOWER TANG BORSDR CHIR20110425001Link · crackedDURING FINAL INSPECTION, THE FINAL INSPECTOR NOTED THERE WAS A CRACK IN THE EXTENSION LINK A02R2551-14. THE SHOP MANGER FOLLOWED PROCEDURE AND COMPLETED AN EVENT REPORT.SDR CA110418008Blade · brokenFOUND THAT THE STBD HAMMER ATTACHMENT BLADE WAS BROKEN OFF. THIS IS THE 3RD TIME THIS HAMMER HAS BEEN FOUND BROKEN IN 1078.2 HOURS. MFG IS ASSISTING IN INVESTIGATING THE REASON FOR THIS PROBLEM.SDR CA110329007Thrust Bearing · cracked(CAN) ELASTOMERIC PORTION OF SPHERICAL THRUST BEARING FOUND CRACKED BEYOND ALLOWABLE LIMITS. MAX ALLOWED DEPTH=10MM, AS FOUND=19MM. MAX ALLOWABLE LENGTH= 20MM, AS FOUND=58MM. PART NOTED TO HAVE ONLY BEEN IN SERVICE FOR 26 PERCENT OF THE COMPONENT RETIREMENT SDR CA110324001Adapter · cracked(CAN) DURING THE O/H OF A MAIN ROTOR HEAD, ALL FOUR ADAPTERS WERE FOUND CRACKED DURING NDI INSPECTION.SDR CHIA0579Attach Bolt · crackedDURING THE REPAIR OF ROTOR HEAD PN 414R2002, SN A5-1460, BOLT PN 114R2201-2, SN CH-3997, SHEARED AT THE THREADED PORTION OF THE BOLT WHEN FORCE WAS APPLIED TO THE BOLT HEAD IN A LOOSENING DIRECTION. BOLT PN 114R2201-2, SN SB-138, THAT WAS REMOVED DURING THE SSDR AC2R9JP03062011Link · crackedFOUND MAIN ROTOR TENSION LINK CRACKED DURING VISUAL INSPECTION. REPLACED TENSION LINK.SDR ALGA012911457ALCone Seat · crackedDURING PREFLIGHT, MAIN ROTOR LOWER CONE SEAT WAS FOUND CRACKED.SDR CA110128007Bearing · delaminated(CAN) THE ENGINEER WAS TROUBLESHOOTING A VIBRATION WHEN IT WAS DISCOVERED, VISUALLY A DELAMINATION OF THE RUBBER COMPOUND OF THE SHEAR BEARING.SDR QMLA2010121810083Bearing · wornPILOT NOTICED IN FLIGHT, UPON VISUAL INSP OF MAIN ROTOR AND MAIN ROTOR CONTROLS FOUND GREEN PC LINK UPPER BEARING OUT OF LIMITS.SDR 2010FA0001235Bearing · wornPILOT REPORTED M/R VIBRATION. FOUND BEARING WORN IN MAIN ROTOR HEAD.SDR CA101104004Grip · mismanufactured(CAN) DURING GRIP REPLACEMENT OF MAIN ROTOR HUB ASSEMBLY, ONE NEW GRIP ASSEMBLY WAS FOUND TO HAVE A RAISED EDGE OF 0.005" AROUND THE STRAP BOLT HOLE. THIS RAISED EDGE INTERFERED WITH THE ASSEMBLY OF GRIP ONTO YOKE ASSEMBLY WITH CONCERN TO THE STRAP. THE STRASDR R29R2010003Damper · debonded(R29R) FOUND ONE DAMPER SET DEBONDED AND THE REMAINING 3 SETS SHOWING SIGNS OF DEBONDING. ACFT GROUNDED UNTIL REPLACEMENT DAMPERS ARE INSTALLED. SECOND DISCOVERY OF THIS PROBLEM IN THE CUSTOMERS FLEET.SDR R29R2010002Damper · debonded(R29R) FOUND 3 OUT OF 4 DAMPER HALF SETS HAD DEBONDED THE ELASTOMERS FROM THE METAL MOUNT PADS. IT APPEARS AS THOUGH THERE WAS A LACK OF ADHESIVE BETWEEN THE 2 SURFACES. THE VIBRATION LEVEL MEASURES 4.0 IPS AT THE BEGINNING OF THE TRACK AND BALANCE PROCESS. THSDR CA100927009Bearing · debonded(CAN) WHEN AIRCRAFT CAME IN FOR A 300 HOUR AIRFRAME INSPECTION ONE OF THE SNAGS REPORTED WAS A BLACK STREAK UNDER THE BLUE TRIANGLE BLADE GRIP. THE PILOT ALSO REPORTED THAT THE SEEMED TO BE GETTING A MORE OF A LATERAL AND VERTICAL. THIS DEFECT DREW THE MAINTSDR CA101015002Ball Joint · loose(CAN) BALL JOINT P/N EN2023S06E FOUND LOOSE IN CRIMPING RIVET.SDR CA100824006Pin · brokenTENSION TORSION PIN BROKE OFF AT MAIN ROTOR HEAD WHERE DRAG BRACE ATTACHES TO PIN. ACFT WAS IN CRUISE FLIGHT PERFORMING AERIAL SPRAY APPLICATION. ACFT STARTED TO SHAKE AND VIBRATE. PILOT PERFORMED EMERGENCY LANDING IN SPRAY BLOCK ON A PREVIOUSLY CLEARED LANSDR 2010FA0000932Bracket · crackedDURING ALF INSP, MECHANIC DISCOVERED .7500" CRACK IN MRH VIBRATION DAMPENER LOWER FLANGE ASSY SIDE MOUNTING BRACKET.SDR QMLA2010080910052Support · crackedDURING THE 1ST 600 HR INSP OF THE MAIN ROTOR HEAD AND VIBRATION ABSORBER ASSY FOUND PN 350A 31 2023 04 TO HAVE APPROX .5" CRACK IN THE RADIUS. DISASSEMBLED VIBRATION ABSORBER AND REPLACED BRACKET PN 350A 31 2023 04 WITH TSN 0.0 REASSEMBLED VIBRATION ABSORBER
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