JASC 6320

Service difficulty reports · 1,930

Reports filed under 6320 · Main 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 = '6320'
  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 CA151202012Gear · failed(CAN) ACFT ENCOUNTERED CHIP LIGHT, LANDED CLEANED CHIP PLUG IAW AMM GROUND RUN AND TEST FLIGHT C/O CHIP LIGHT ILLUMINATED AGAIN. ACFT LANDED TRANSMISSION SENT FOR REPAIR. UPON REPAIR FOUND EPICYCLIC TO HAVE LARGE AMOUNTS OF DAMAGE. PARTS SCRAPPED.Sep 15, 2015 · Snias AS350B2SDR CHIR2017082300057Bolt · crackedENGINEERING DEPARTMENT, THE THEN CURRENT BOLTS WERE REPLACED WITH PREVIOUS FASTENERS. IN THE INTERVENING 5 MONTHS, NO FURTHER ERRORS HAVE BEEN DETECTED. THESE ASSEMBLIES ARE INSPECTED AT 50 HR. INTERVALS IAW SB 234-63-0001 R0. Aug 28, 2015 · Boeing 234SDR 2A6D2015082525391Duplex Bearing · damagedMAIN TRANSMISSION PN 407-040-006-123, SN A-1061, TT 1436.9 MAKING METAL WAS PULLED FROM THE ACFT & DISASSEMBLED. INSPECTED & FOUND THE DUPLEX BEARING PN 407-340-032-010, SN ZS1127 INSTALLED. HAS TWO BALL BEARINGS STARTED PITTING & FAILING.Aug 25, 2015 · N105AM · Bell 407SDR CA150827011Bearing · failed(CAN) ACFT WARNING SYSTEM INDICATED METAL CHIP GENERATION INSIDE MAIN TRANSMISSION. TRANSMISSION REMOVED FROM ACFT AND INVESTIGATION FOUND DUPLEX BEARING DETERIORATION.Aug 24, 2015 · Bell 206BSDR CA150825007Gearbox · making metal(CAN) TRANSMISSION SUMP CHIP LIGHT ON STARTUP. BURNED AND REPAIRED 3 TIMES. AC FERRIED BACK TO BASE. SCHEDULED FOR MGB REPLACEMENT.Aug 24, 2015 · Agusta AW139SDR QMLA2015081715073Gearbox · unserviceableMGB WAS REPLACED DUE TO SCHEDULED OVERHAUL PERIOD COMING DUE. DURING POST MX CHECKS, HOVER & FLIGHT, OF REPLACEMENT MGB A LOW PITCH GROWLING WAS HEARD. AFTER LANDING & SHUTTING DOWN ENGS THE ROTORS WERE COASTING DOWN & GRINDING & GLUNKING COULD BE HEARD FROMAug 17, 2015 · N365UC · Aerosp SA365N1SDR CA150826001Screw · short(CAN) MAIN GEARBOX, PN 412-040-002-103, NOTE THAT SECTION 8 OF THIS FORM WOULD NOT ACCEPT THE MFG INFO AND THEREFORE WOULD NOT SAVE. LOW OIL INDCATION OBSERVED IN FLIGHT, PILOT MADE EMERGENCY LANDING. UPON INSPECTION OF THE ACFT IT WAS DETERMINED THAT THE MAIAug 11, 2015 · Bell 412SDR FF6R2015081000001Bolt · failedFAILURE FOUND AT OVERHAUL FOLLOWING CUSTOMER COMPLAINT. DURING A BORESCOPE INSPECTION, FOUND TWO RING GEAR BOLTS SHEARED, AND THE REMAINING BOLTS LOOSE. THE HEADS OF THE BOLSTS WERE VISIBLE AND LAYING ON TOP O FHTE RING GEAR. REMOVED THE INPUT PINION AND BOLTAug 10, 2015 · Snias AS350B3SDR 39LA20150713140Gearbox · low pressureDURING CRUISE FLIGHT THE MASTER CAUTION WARNING LIGHT ILLUMINATED FOR THE TRANSMISSION LOW OIL PRESS WITH ASSOCIATED PRESS GAUGE READING OF 20 PSI. AN OFFSITE LANDING WAS PERFORMED WITHOUT INCIDENT.Jul 13, 2015 · N116AZ · Skrsky S61NSDR CA150713023Chip Detector · weak(CAN) MGB CHIP DETECTOR MAGNETISM IS WEAK.Jul 11, 2015 · Urocop EC135T2SDR CA150714009Spline Adapter · mismanufactured(CAN) THE VESPEL SPLINE ADAPTERS SHOULD SLIDE OVER THE LUBE/SCAVENGE PUMP SPLINE SMOOTHLY BUT SNUGLY. ON REPLACING BOTH SPLINE ADAPTERS ON 1 OF OUR AIRCRAFT, IT WAS DISCOVERED THAT 5 SPLINE ADAPTERS NEW, FROM STORES WOULD FETCH UP AND NOT SMOOTHLY SLIDE OVER Jul 9, 2015 · Skrsky S92ASDR 2015FA0000294Pressure Switch · chafedMAIN GEAR BOX PRESSURE SWITCH CAUSING FALSE READING, LIGHT TO ILLUMINATE. FURTHER RESEARCH SHOWS THAT CAUSE WAS INTERNAL WIRE CHAFING.Jun 29, 2015 · N820PM · Urocop EC120BSDR JYDR20150611153Ring Gear · looseMAIN GEAR BOX WAS RECEIVED FOR OVERHAUL. DURING DISASSEMBLY IT WAS FOUND THAT 1EA NUT, MS14182P06 HAD BACKED OFF OF 1EA BOLT MS14181-06010P THAT HOLDS THE SECOND STAGE RING GEAR TO THE SHAFT. THE NUT DID NOT COME OFF THE BOLT. THIS CAUSED DAMAGE TO THE INTEJun 11, 2015 · N247AC · Skrsky S64ESDR 2A6D2015061011728Duplex Bearing · damagedMAIN TRANSMISSION HAD A CHIP LIGHT ILLUMINATE. MAIN TRANSMISSION WAS SENT TO THE OVERHAUL SHOP. UPON DISASSEMBLY IT WAS DISCOVERED THE DUPLEX BEARING FOR THE GEAR SHAFT ASSEMBLY WAS STALLING & IS THE SOURCE OF METAL CONTAMINATION IN THE TRANSMISSION. APPROXJun 10, 2015 · N911AL · Bell 407SDR K2D2015F00000Pump · failedDURING CRUISE FLIGHT, THE MAIN ROTOR TRANSMISSION LOW OIL PRESSURE LIGHT ILLUMINATED. AN UNSCHEDULED PRECAUTIONARY LANDING WAS MADE IN AN OPEN FIELD WITHOUT INCIDENT. FOLLOWED HELICOPTER MM TROUBLESHOOTING PROCEDURES AND FOUND THE MAIN ROTOR TRANSMISSION OILMay 31, 2015 · N508PH · Hughes 369ESDR K2DA2015FA0000256Pump · failedDURING CRUISE FLIGHT, THE MAIN ROTOR TRANSMISSION LOW OIL PRESSURE LIGHT ELIMINATED. AN UNSCHEDULED PRECAUTIONARY LANDING WAS MADE IN AN OPEN FIELD WITHOUT INCIDENT. FOLLOWED MM TROUBLE SHOOTING PROCEDURES AND FOUND THE MAIN ROTOR TRANSMISSION OIL PUMP FAULTMay 31, 2015 · N508PH · Hughes 369ESDR K2DA20150602001Pump · failedDURING CRUISE FLIGHT THE MAIN ROTOR TRANSMISSION LOW OIL PRESS LIGHT ELIMINATED. AN UNSCHEDULED PRECAUTIONARY LANDING WAS MADE IN AN OPEN FIELD WITHOUT INCIDENT. FOLLOWED MM TROUBLESHOOTING PROCEDURES & FOUND THE MAIN ROTOR TRANSMISSION OIL PUMP FAULTY. REPMay 31, 2015 · N508PH · Hughes 369ESDR QMLA2015050715036Chip Detector · contaminatedDURING CRUISE FLIGHT, THE PILOT WAS ALERTED TO A MAIN TRANSMISSION CHIP LIGHT. HE IMMEDIATELY DIVERTED BACK TO THE BASE OF OPERATIONS APPROX 3NM AWAY WITH NO ISSUES. INSPECTED THE CHIP DETECTORS. A CLASS C CHIP WAS FOUND. THE DETECTOR WAS CLEANED, SYS OIL May 7, 2015 · N912EF · Urocop EC135T2SDR CA150429009Gearbox · making metal(CAN) MAIN ROTOR GEARBOX SUMP CHIP CAS ILLUMINATED POST START-UP. WOULD NOT BURN.Apr 27, 2015 · Agusta AW139SDR CA150505001Sun Gear · faulty(CAN) FINDINGS BY STEPS OF OCCURRENCE: A CRACK SOUND DURING HOVER HEARD BY EVERYONE INCLUDING PASSENGERS. BOTH ENGINES NP POWER TURBINE RPM REACHED TO PERCENT 119.6, NR RPM PERCENT 119.7. DURING HARD LANDING, CROSS-TUBES BENT AND AFT FUSELAGE TOUCHED THE GROApr 26, 2015 · Bell 430SDR CA150429003Flange · loose(CAN) DURING AN UNRELATED UNSCHEDULED MX CHECK THE OUTPUT FLANGE WAS FOUND TO BE LOOSE, TOTAL LOSS OF TIGHTNESS. THE BEVEL GEARBOX WAS REMOVED, INSPECTED & REINSTALLED. SB 355-63.00.27 WAS COMPLETED WITH NEW FLANGE, STA-LOCK NUT & SECURING WASHER INSTALLED. Apr 9, 2015 · Snias AS350*SDR 9EKA2015033013Case · crackedDURING PREFLIGHT OIL WAS NOTICED ON THE UPPER TRANSMISSION CASE. UPON FURTHER INVESTIGATION, PAINT WAS BUBBLED ON RING GEAR CASE. CLEANED PAINT & DYE PENETRANT WAS USED REVEALING A SUSPECTED CRACK. ACFT WAS RUN AT 100% NR & OIL WAS NOTICED COMING FROM A CRAMar 27, 2015 · N214EB · Bell 214STSDR CA150410015Pinion Gear · failed(CAN) DURING FLIGHT, THE CHIP LIGHT DETECTOR ILLUMINATED. WHEN THE ACFT LANDED THE FLIGHT CREW HEARD A GROWLING NOISE THAT CAME FROM THE MAIN TRANSMISSION AREA. TWO FERROUS NUGGETS WERE FOUND ATTACHED TO THE DETECTOR. IT WAS FOUND THAT THE INPUT PINION GEAMar 16, 2015 · Bell 407SDR 2015F00060Transmission · making metalTRANSMISSION CHIP LIGHT ILLUMINATED IN FLIGHT, PILOT MADE AA PRECAUTIONARY LANDING. INSPECTION REVEALED METAL IN OIL. TRANSMISSION REMOVED FOR OVERHAUL/REPAIR.Mar 16, 2015 · N101HF · Bell 407SDR CA150324001Transmission · making metal(CAN) TRANSMISSION STARTED GENERATING METAL. PREFORMED INSPECTION AND FOUND TO BE SIGNIFICANT. R & R TRANSMISSION. METAL ONLY FOUND ON LOWER CHIP DETECTOR.Mar 9, 2015 · Bell 407SDR QMLA2015030915014Gearbox · making metalDURING AN EVENT 2 AIRFRAME INSPECTION, CHIPS WERE FOUND ON THE LOWER MAIN GEAR BOX CHIP PLUG. AFTER EXAMINATION IT WAS DETERMINED THAT IAW THE MM 63-12 & 63-13 THE SIZE & QTY OF THE FLAKES FOUND ON THE LOWER CHIP PLUG IAW FIGURE 63.13, FEW MODERATELY SIZED & Mar 9, 2015 · N775AL · Bell 407SDR CA150324006Case · cracked(CAN) THE TRANSMISSION CASE HAD AN OIL LEAK FOUND AROUND LT INPUT QUILL AREA. FOUND THE OIL LEAK FROM A CRACK IN THE RADII TRANSITION AREA OF THE CASE BETWEEN THE LT INPUT AND PORTION OF THE LOWER CASE.Mar 6, 2015 · Bell 427SDR CA150305006Module · unserviceable(CAN) UPON LANDING AT THE PLATFORM, THE NR 1 INPUT MODULE CHIP CAUTION ILLUMINATED. THE ACFT WAS THEN SHUTDOWN & SECURED. MX TEAM ARRIVED LATER THAT DAY & UPON INSPECTION OF THE NR 1 MODULE CHIP DETECTOR FOUND 4 SMALL RIVET HEADS. AMM DICTATES NO FURTHER FLFeb 22, 2015 · Skrsky S92ASDR 9EKA02162015002Hose · chafedWHILE IN STEADY STATE CRUISE FLIGHT AT 70% TQ, MAIN TRANSMISSION OIL CAUTION LIGHT ILLUMINATED & THE OIL PRESS GAUGE FOR THE TRANSMISSION WAS OBSERVED DECREASING RAPIDLY. PRECAUTIONARY EMER LANDING WAS MADE IN LESS THAN 1 MIN & THE ACFT SAFELY TOUCHED DOWN. Jan 30, 2015 · N511EV · Bell 214STSDR CA150121002Spider Gear · cracked(CAN) LOWER PLANETARY SPIDER ASSEMBLY PART NUMBER 205-040-785-003 FOUND CRACKED DURING ROUTINE OVERHAUL. NO KNOWN CAUSE AND NO OTHER DISCREPANCIES FOUND. PART REPLACED WITH NEW PART OF SAME PART NUMBER AND OVERHAUL OF TRANSMISSION COMPLETED.Jan 20, 2015 · Bell 205A1SDR 2014FA0000722Shaft · brokenPILOT REPORTED VIBRATION, BURNING RUBBER ODOR AND LOSS OF ROTOR RPM WHILE IN CRUISE FLIGHT, DURING DOWNWIND PORTION OF TRAFFIC PATTERN PRACTICE. PILOT ENTERED AUTOROTATION AND PERFORMED SUCCESSFUL AUTOROTATION AND POWER OFF LANDING. UPON EXAMINATION OF ACFT ODec 29, 2014 · N7041X · Robsin R22BETASDR CA141210001Gearbox · malfunctioned(CAN) THE INPUT GEARBOX CAN BE USED ON NR 1 OR NR 2 POSITION. WHEN USED ON NR 2 POSITION THE CHIP DETECTOR LOCATION IS PLUGGED. THE PLUG WAS FITTED WITH AN O-RING. DURING GROUND RUNS, A SMALL WEEP WAS NOTED BUT NOTHING SERIOUS OR ALARMING. AFTER TEST FLIGHTDec 8, 2014 · Skrsky S92ASDR 3D9A20141206003Fitting · corrodedCORROSION FOUND UNDER RT LOWER TORQUE MOUNT FITTING ON MAIN TRANSMISSION CASE.Nov 28, 2014 · N401DC · Bolkms BK117B2SDR CA141212010Transmission · warning light(CAN) MAIN TRANSMISSION WAS REPLACED WITH 0 TSO TRANSMISSION. AFTER INSTALLATION, THE LOW ROTOR HORN AND LIGHT WAS COMING BACK ON DURING THROTTLE INCREASE PAST 85 PERCENT, BOTH HORN AND LIGHT GOING OFF AT AROUND 87 PERCENT, BOTH COMING BACK ON AT 90 PERCENT TNov 25, 2014 · Bell 407SDR CA141201003Transmission · damaged(CAN) RECENTLY REPORTED 3, NOTE 1, MAIN TRANSMISSION UPPER CASES DAMAGED DUE TO INCORRECT INSTALLATION OF THE PYLON DOWN STOP, PN: 407-010-208-105. THE MM FIG 63-26, SHEET 1 AND THE IPB FIG 63-13 ARE SHOWING THE BONDING STRAP BRACKET INSTALLED IN THE OPPOSITENov 17, 2014 · Bell 407SDR CA141217006Pump · malfunctioned(CAN) UPON REMOVAL OF ONE OF THE MAIN GEARBOX LUBE PUMPS FOR VESPEL SPLINE REPLACEMENT, IT WAS DISCOVERED THAT ONE OF THE MOUNTING FLANGE EARS FOR THE PUMP WAS CRACKED COMPLETELY OFF. THIS HAS OCCURRED ELSEWHERE IN THE S92 FLEET SEVERAL TIMES ALREADY AND A RETNov 15, 2014 · Skrsky S92ASDR IFJA2014110400001Chip Detector · contaminatedDURING NORMAL CRUISE FLIGHT, THE PILOT RECEIVED A MAIN GEAR BOX CHIP LIGHT, PROCEEDED TO THE NEAREST AIRPORT WITH OUT INCIDENT. AFTER LANDING, THE MECH FOUND A FOUND A SMALL PIECE OF METAL ON THE CHIP DETECTOR, REMOVED THE PIECE OF METAL AND REINSTALLED THENov 2, 2014 · N508CF · Agusta A109ESDR CA141024019Gearbox · making metal(CAN) PRIOR TO TAKEOFF FOR FIRST FLIGHT OF THE DAY, THE MAIN GEAR BOX CHIP LIGHT ILLUMINATED. HELICOPTER WAS SHUTDOWN AND METAL WAS FOUND IN THE OIL STRAINER "COARSE SCREEN". TRANSMISSION WILL BE SENT TO O/H SHOP FOR FURTHER INVESTIGATION.Oct 24, 2014 · Skrsky S61NSDR M3XA2014102007Transmission · contaminatedAIRCRAFT WAS CONDUCTING A PATIENT TRANSFER WHEN THE PILOT ENCOUNTERED A TRANSMISSION CHIP LIGHT. PILOT IMMEDIATELY PERFORMED A PRECAUTIONARY LANDING SAFELY. MAINTENANCE WAS NOTIFIED & EN ROUTE WITH SUPPLIES & EQUIPMENT. MECHANIC FOUND MINOR MICROSCOPIC PARTOct 17, 2014 · N505MT · Bell 407SDR CA141008016Gearbox · making metal(CAN) MGB CHIP SUMP CAS MESSAGE FOUND PRIOR TO ENGINE START.Oct 3, 2014 · Agusta AW139SDR CA140930005Bolt · failed(CAN) DURING INSTALLATION OF NEW TRANSMISSION MOUNT WHILE INSTALLING ONE OF THE 4 MOUNTING BOLTS THE HEAD OF ONE OF THE BOLTS BROKE OFF WITH HAD PRESSURE. THE MARKINGS ON THE BOLT INDICATE PREVIOUSLY CRACKED. TAPERED WASHER WAS CONFIRMED TO BE INSTALLED CORRECSep 29, 2014 · Urocop EC135P2SDR 11RR201409190001Line · deterioratedOIL LINE FROM TRANSMISSION TO OIL COOLER BEGAN LEAKING AT SWEDGED FITTING ON THE TRANSMISSION SIDE. OIL WAS INJESTED INTO THE OIL COOLER BLOWER AND CAUSED FUMES IN THE CABIN. LOW OIL PRESSURE LIGHT ILLUMINATED ON SHORT FINAL. THE AREA WAS LOOKED AT 3 DAYS PRISep 19, 2014 · N507CC · Doug 600NSDR CA141024020Module · failed(CAN) ORIGINAL PROBLEM WAS REPORTED BY AIRCREW WHO NOTICED THAT TORQUE INDICATION WAS LAGGING AND SOMETIMES HUNG TEMPORARILY ON THE NR 2 ENGINE INPUT. ALTHOUGH ALL OTHER ENGINE PARAMETERS RESPONDED NORMALLY NG, NP, TGT, AND ONCE POWER BECAME STEADY STATE, THESep 15, 2014 · Skrsky S92ASDR QMLA2014091514110Crossbeam · corrodedUPON REMOVAL OF MGB FOR REPLACEMENT, CROSSBEAM MEMBER WAS FOUND TO BE CRACKED AT TRANSMISSION TO CROSSBEAM FITTING HOLE.Sep 15, 2014 · N335AM · Urocop EC130B4SDR CA140822012Gearbox · making metal(CAN) MGB, WAS RECEIVED INTO THE SHOP DUE FOR METAL CONTAMINATION. FOUND DULL DARK METAL CHIPS. REPORTS ALSO INCLUDE DESCRIPTION OF SMALL FLAKES FOUND.Aug 21, 2014 · Skrsky S76SDR Z1RA2014081900145Warning Light · illuminatedMAIN GEAR BOX CHIP LIGHT ILLUMINATED ON RUNUP.Aug 19, 2014 · N761AF · Skrsky S76CSDR QMLA2014081214101Transmission · making metalDURING ZONE INSPECTION AT ACTT 6722+54 IT WAS NOTED OF METAL PARTICLES ON COLLECTOR GEAR CHIP DETECTOR. AT ACTT 6729+01 THE TRANSMISSION SUMP CHIP LIGHT ILLUMINATED IN FLIGHT & FUZZ BURNER WAS ACTIVATED. PERFORMED A SERVICEABILITY CHECK IAW MM. AT ACTT 6743Aug 12, 2014 · N555BA · Bell 430SDR CA140801003Gearbox · making metal(CAN) CAS MESSAGE DISPLAYED DURING CRUISE. MAIN GEARBOX MAGNETIC CHIP DETECTOR ILLUMINATED. ACFT LANDED SAFELY AT THE HOSPITAL HELIPAD. MAGNETIC PARTICLES FOUND ON THE CHIP DETECTOR AND THE OIL FILTER. ACFT DECLARED UNSERVICEABLE. PENDING ARRANGEMENTS FORJul 31, 2014 · Agusta AW139SDR 39LA2014072983Bushing · shearedDURING MAIN GEARBOX ATTACH BOLT SCHEDULED REPLACEMENT, 3 OF THE 8 ATTACH BOLT OUTER BUSHINGS WERE FOUND TO BE SHEARED OFF AT THE BASE OF THE Ï¿½HATÏ¿½ IN THE FOLLOWING POSITIONS, LT FWD, LT AFT & RT AFT. THE MAIN GEARBOX WILL BE R & R.Jul 29, 2014 · N850AR · Skrsky S92ASDR QMLA2014072214088Seal · wornDURING DAILY AIRWORTHINESS CHECK, NOTICED EXCESSIVE NOISE & HORIZONTAL PLAY IN M/R MAST AT TRANSMISSION UPPER BEARING AREA WHEN SHAKING M/R BLADES. DURING INVESTIGATION OF THE MAST AFTER REMOVAL, EXCESSIVE WEAR WAS EVIDENT AT THE UPPER SEAL RUNNER & WEAR INDIJul 25, 2014 · N911KD · Bolkms BK117B2
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