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.
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
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 CA040726002Transmission · making metal(CAN) TRANSMISSION CHIP LIGHT, TRANSMISSION SENT TO OVERHAUL SHOP.SDR 2004F00373Gearbox · making metalAT A HOVER READY FOR TAKEOFF, AFTER INITIAL RUN UP AND PREPARING FOR TAKEOFF MAIN GEAR BOX LIGHT CAME ON. MAINTENANCE DISCOVERED METAL CHIP CONTAMINATION ON LEFT AND RIGHT MAIN GEAR BOX CHIP DETECTORS. TRANSMISSION REMOVED FROM SERVICE. (M)SDR CA040712003Bearing Race · spalled(CAN) TRANSMISSION SENT FOR OVERHAUL DUE TO METAL CONTAMINATION DETECTED WITH A CHIP LIGHT INDICATION. AFTER DISSASSEMBLY BEARING OUTER RACE FOUND TO HAVE SPALLING DAMAGE.SDR ERAA097113Caliper · damagedDISC RUBBING CALIPER ASSY. CLEANED, INSPECTED, AND REPAIRED. TESTED.SDR ALGA096938Gear · defectiveREMOVED GEAR DUE TO UNEVEN WEAR PATTERN, REPLACED PART WITH NEW ITEM.SDR ALGA096933Gear · spalledREMOVED GEAR DUE TO SPALLING AT LOW TIME, REPLACED PART WITH NEW ITEM.SDR ALGA096951Pinion Gear · spalledSPALLING ON GEAR TEETH, THIS IS A RECURRING PROBLEM IN C47B GEARBOXS, WHERE PINION GEARS WEAR PREMATURELY. REPLACED WITH NEW GEAR.SDR ERAA097506Gearbox · splitBLACK FLAKES IN OIL. TORQUE SPLITS. FLAKES FROM OIL PUMP BODY SEPARATOR. WORN POCKET ON OIL PUMP PRESSURE BODY. COMPLIED WITH CEB-1135 GEARBOX COVER REPLACED, INCREASED RIGIDITY AT TORQUE METER SUPER SHAFT BOSS. OVERHAULED GEARBOX.SDR ERAA097522Blower · chafedCUSTOMER OWNED AIRCRAFT. BLOWER FAN WHERE RUBS. FOUND INBOARD BEARING ROUGH. SCRAPPED BEARING, HOUSING DUE TO EXCESSIVE PITTING. FOD HAS BEEN BETWEEN WHEEL AND HOUSING, NO DAMAGE TO FAN WHEEL, SLIGHT RUB MARKS IN PAINT ON HOUSING, PROBABLY SOMETHING LIKE GSDR ERAA096633Freewheel Unit · corrodedSERVICE CORROSION ON TEETH. HAS EXTERNAL CORROSION, PITTING, BEYOND LIMITS ON SPUR GEAR ACTION TAKEN: REPACK UNITS BEING STORED FOR EXTENDED PERIODS. SPUR GEAR CHANGED.SDR ALGA095232Gear · spalledSPALLING ON GEAR TEETH. THIS IS A NEW STYLE GEAR AND THIS GEARBOX WAS REMOVED FOR HIGH VIBES. THIS IS A RECURRING EVENT ON C-47 GEARBOXES. REPLACED GEAR W/NEW PART.SDR ALGA095231Gear · spalledSPALLING ON GEAR TEETH, THIS IS A RECURRING EVENT ON C-47 GEARBOXES. REPLACED GEAR W/NEW PART.SDR TXER095703Epicyclic · making metalMAIN ROTOR GEARBOX EPICYCLIC MAKING METAL.SDR TXER095702Gearbox · making metalMAKING METAL.SDR ALGA094697Tach Generator · wornFOUND SPLINES INSIDE ARMATURE AND ON DRIVSHAFT WORN. DISCREPANCY FOUND ON 900HR. INSPECTION.RETURNING PART TO VENDOR FOR WARRANTY.SDR ALGA094690Tach Generator · wornFOUND SPLINES INSIDE ARMATURE AND ON DRIVSHAFT WORN. DISCREPANCY FOUND ON 900 HR INSPECTION. RETURNING PART TO VENDOR FOR WARRANTY.SDR CA040526004Case · corroded(CAN) A DOZEN STUD HOLES FOUND DEEPLY CORRODED AND NEEDED SPECIAL REPAIR IAW MFG INSTRUCTIONS. THE CORROSION IS CAUSED BY DISSIMILAR METALS AND MOISTURE. MFG CANNOT SOLVE THE PROBLEM DEFINITELY BUT SUGGEST METHODS TO SLOW IT DOWN AND DIMINISH DAMAGE TO CASE.SDR GAKA144ETransmission · contaminatedWHILE IN CRUISE FLIGHT, MAIN ROTOR TRANSMISSION OIL PRESSURE FLUCTUATION OCCURRED RESULTING IN A FLUCTUATION BETWEEN 65-80 PSI., WITH AN ILLUMINATION OF THE LOW OIL PRESSURE WARNING LIGHT. PILOT LANDED IMMEDIATELY AT HELIPAD. TWO QUARTS OF TRANSMISSION OIL WSDR KBM2004FAAPulley · undertorquedENGINE TO MGB POWER SHAFT FORWARD PULLEY ATTACH HOLES ELONGATED DUE TO ATTACHMENT BOLT TORQUE LESS THAN MINIMUM TORQUE AT ORIGINAL INSTALLATION. REMOVED AND REPLACED. ASSELBL AT FACTORY DURING 5900 HR/ 12 YEAR INSPECTION.SDR AUS20040386Gear · failed(AUS) MAIN ROTOR TRANSMISSION INPUT PINION GEAR FAILED. GEAR TEETH STARTING TO BREAK DOWN WITH DISTINCT WEAR PATTERN AND PITTING ON THE FLANK OF ALL GEAR TEETH AND ADVANCED BREAKING DOWN OF SOME OF THE TEETH. METAL CONTAMINATION OF TRANSMISSION.SDR ALGA094321Bearing · spalledTRANSMISSION DISASSEMBLED FOR METAL CONTAMINATION, FOUND BEARING BREAKING DOWN. REMOVED AND REPLACED BEARING.SDR ERAA097085Transmission · making metalFOUND UNACCEPTABLE AMOUNTS OF ALUMINUM, BRONZE AND METAL FLAKES IN OIL FILTER. BUSHINGS MISSING IN INTERMEDIATE SHAFT BOLT HOLE BORES. NO DRY LUBE ON BEVEL GEARS, BEVEL GEARS SWITCHED SIDES ON LAST O/H, LT PINION AND BEVEL GEAR SCRAPPED (TEETH BREAKING DOWN)SDR ERAA096632Oil Cooler · making metalOIL COOLER HAD METAL IN TRANSMISSION OIL FILTER CHANGE IAW BO105 MM. LEAKING IN CORE THE UNIT WAS CLEANED, FLUSHED, OVERHAULED, TESTED AND INSPECTED. UNIT PASSED X RAY INSPETION, NO METAL.SDR ALGA094182Gear · spalledGEAR HAS HEAVY SPALLING. REMOVED AND REPLACED W/SERVICEABLE PART.SDR ALGA094181Gear · spalledGEAR HAS HEAVY SPALLING. REMOVED AND REPLACED W/SERVICEABLE PART.SDR HEEA094228Bearing · failedTRANSMISSION CHIP LIGHT ILLUMINATED IN FLIGHT. AIRCRAFT LANDED AT POINT SU FUR. MAINTENANCE FOUND BEARINGS IN THE ROTOR BRAKE QUILL HAD FAILED.SDR AUS20040362Gear · worn(AUS) MAIN TRANSMISSION SUN GEAR PN 206-040-662-101 AND SUN GEAR SHAFT PN 206-040-040-005 WORN BEYOND LIMITS IN SPLINED AREAS. INVESTIGATION FOUND THE SUN GEAR UPPER O RING PN M83248/1-228 WAS TORN AND SLICED IN SEVERAL AREAS AND THE SUN GEAR LOWER O-RING PN SDR ALGA093899Gear · spalledFOUND HEAVY SPALLING ACROSS GEAR TEETH OF PTO GEAR.SDR ALGA093898Bearing · spalledMAIN GEARBOX DISASSEMBLED FOR METAL CONTAMINATION, FOUND BEARING BREAKING DOWN.SDR BRM2004F00000Transmission · contaminatedENROUTE, (3-20-04, 11:38 PM) THE PILOT NOTED A MAIN ROTOR TRANSMISSION CHIP LIGHT. A PRECAUTIONARY LANDING WAS PERFORMED. UPON INSPECTION OF THE MAGNETIC PLUGS (UPPER AND LOWER) NO METAL WAS FOUND. A LIGHT COAT OF VERY FINE BLACK PARTICLES THAT LOOKED LIKE SDR MDR04046Housing · crackedMAIN GEAR BOX (SN A6167) WAS INSTALLED ON AIRCRAFT AND REQUIRED REMOVAL DUE TO A POSSIBLE CRACK FOUND ON THE UPPER HOUSING ON THE RT SIDE. HOUSING APPEARED TO BE SEEPING OIL FROM SUSPECTED CRACK IN THE ARMPIT OF THE UPPER HOUSING. THE SUSPECT AREA WAS LOCALLSDR CA040427013Shaft · broken(CAN) BEARING SIZE DUE TO LACK OF LUBRICATION. DUE TO INCORRECT INSTALLATION AT REPAIR.SDR MDR04045Housing · crackedDURING ROUTINE FIELD MAINTENANCE INSPECTIONS, A CRACK WAS DISCOVERED UNDER NR 2 INPUT (ARM PIT) APPROXIMATELY 6 INCHES LONG FROM APPROXIMATELY THE 5 TO 8 OCLOCK POSITION. THIS WAS VERIFIED BY FPI. PROBABLE CAUSE IS UNKNOWN.SDR I05R094206Transmission · making metalTRANSMISSION MAKING METAL REPLACED PART.SDR CA040309003Filter · inoperative(CAN) MAIN GEAR BOX OIL PRESSURE DROPPED IN FLIGHT. AIRCRAFT RETURNED TO LANDING AREA AND SHUT DOWN. EXAMINATION OF MGB COARSE SCREEN FILTER REVEALED RESIN COATING FROM INSIDE OF MGB HAD FLAKED OFF. MGB REPLACED.SDR CA040309002Cover · cracked(CAN) CRACK ON LOWER LT LEG OF MAIN GEARBOX REAR COVER DISCOVERED ON DAILY INSPECTION.SDR 2004FA0000280Plug · loosePILOT STARTED ENGINE, COMPLETED CHECKLIST AND (BEEPS) IN HEADSET AND VISUAL WARNING ON CAUTION PANEL OF MAIN GEAR BOX (LOW OIL PRESSURE). SHUT DOWN ENGINE AND OPENED COWL, TRANSMISSION FILLED WAS COVERING BOTH ENGINE DECK AND TRANSMISSION DECK. DISCOVERED THSDR ALG2004F00008Chip Detector · contaminatedDURING TAKEOFF, TRANSMISSION LIGHT CAME ON FOR 30 SECONDS THEN IT WENT OFF. MAINTENANCE FOUND CARBON PARTICLES ON PLUG, CHANGED FILTER AND OIL GROUND RAN LEAKED CHECK GOOD.SDR ALGA097415Bearing · spalledTRANSMISSION DISASSEMBLED FOR METAL CONTAMINATION, FOUND ROLLER BEARING BREAKING DOWN. REMOVED AND REPLACED BEARING.SDR BAQA092605Transmission · making metalMETAL CHIPS ON CHIP DETECTOR ARE PAST SERVICABLE LIMITS. *NOTE* FILTER REMOVED. HARDCARD ENCLOSED. REPLACED WITH SERVICABLE UNIT. 02/18/2004SDR CA040209005Nozzle · missing(CAN) UNIT INSTALLED IN A/C AFTER REPLACEMENT OF CRACKED CASE BY CUSTOMER US REPAIR FACILITY. AFTER INITIAL TEST RUNS IT WAS REPORTED TO HAVE VERY LOW OIL PRESSURE, AFTER NUMEROUS HOURS OF TROUBLESHOOTING (PRESSURE PUMP, SWITCH, GAUGE REPLACEMENT AND WIRING CHSDR 2004FA0000163Line · crackedAIRCRAFT EXPERIENCED LOW TRANSMISSION OIL PRESSURE. DURING RUN-UP AND LEAK CHECK FOUND TRANSMISSION OIL COOLER LINE P/N 900D3409526105 TO BE LEAKING FROM UNDER STEEL BRADE. REPLACED OIL COOLER LINE, OPS AND LEAK CHECK WERE GOOD. CUT BACK STEEL BRADE ON OLD SDR CA040202015Tie Rod · sheared(CAN) ONE OF THE THREE BOLTS ATTACHING THE ENGINE TO THE MAIN GEARBOX WAS DISCOVERED SHEARED DURING A TURN AROUND CHECK. THE BOLT WAS SHEARED ABOUT MIDWAY IN THE THREADED PORTION OF THE BOLT. THE ENGINE WAS REMOVED AND AREA INSPECTED IAW WRITTEN PROCEDURES. NOSDR CA040203014Bearing Race · spalled(CAN) BEARING SPALLED AND CAUSED A CAUTION LIGHT TO COME ON.SDR AUS20040052Hose · leaking(AUS) MAIN TRANSMISSION OIL HOSE LEAKING. FURTHER INVESTIGATION FOUND THE HOSE WAS CHAFING IN THE AREA UNDER THE IDENTIFICATION TAG.SDR CA040203005Tube · cracked(CAN) DURING THE SCHEDULED INSPECTION CARRIED OUT THE BASE, THE AME NOTICED THAT THE TUBE P/N 3023724 WAS CRACKED BEHIND THE B-NUT AREA. THE CRACKED TUBE WAS REMOVED AND REPLACED.SDR ERAA092668Sun Gear · corrodedUPPER SUN GEAR WITH ONLY 143.1 HRS HAS NITRITING BREAKING DOWN, TEETH FRETTING AND PITTING. RETURNING ON ERA MMIR NR ERAA0001972 REQUESTING CREDIT.SDR ERAA092667Spider Gear · corrodedSPIDER GEAR WITH ONLY 143.1 HRS HAS NITRITING BREAKING DOWN. TEETH FRETTING AND PITTING. RETURNING ON ERA PACK SLIP NR 5936 REQUESTING CREDIT.SDR CA040129006Beam · cracked(CAN) AIRCRAFT ON HELISKIING WHEN THIS OCCURRED. INSPECTED IAW AD96-156-071(B) R1 PART 1.1, EVERY 30 HOURS OR 150 CYCLES. THIS WAS BEING INSPECTED DUE TO THE CYCLES EVERY 2 OR 3 DAYS. THE CROSSBEAM WAS FOUND SMOKING IN THE REGION OF SUSPECTED CRACK. THE AREASDR CA040117001Warning Light · illuminated(CAN) AT 5500 FT VFR ENROUTE TO THE PLATFORM, JUST NEARING THE COASTLINE, THE MASTER CAUTION AND INTERMEDIATE GEARBOX CHIP LIGHT ILLUMINATED.
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