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 ERAA077296Bearing · making metalTRANSMISSION IS MAKING METAL. TAILROTOR QUILL BEARINGS CAUSE OF METAL CONTAMINATION. SEAL LEAKS. MAIN INPUT R/B QUILL, SYS II HYD QUILL AND AUX JETS ON RING GEAR CASE. ACTION TAKEN: REPAIRED, PARTIALLY DISASSEMBLED, VISUALLY INSPECTED EXPOSED COMP. INSTALLNov 16, 2001 · N418EH · Bell 412SDR CA011114017Bearing · defective(CAN) BOTH INNER AND OUTER RACE OF BEARING DISPLAYED MODERATE PITTING AND PEELINGNov 14, 2001 · Bolkms BO105CBSSDR 2002F00311Transmitter · shortedPRESSURE TRANSMITTER INTERNAL SHORT TO GROUND. REPLACED WITH NEW, CORRECTED PROBLEM. (M)Nov 8, 2001 · N202HN · Bolkms BK117A3SDR CA011114016Bearing · peeling(CAN) CHIP LIGHT INDICATION.GEARBOX DISASSEMBLED FOR INVESTIGATION.BEARING PLATING FOUND PEELING.REPLACED WITH NEWNov 2, 2001 · Bolkms BO105CBSSDR CA011217019Gearbox · making metal(CAN) OCT23 AT 1290 HRS M/R OIL CHANGED (500 HR CHANGE. OCT 30 IN CRUISE FLIGHT MAIN ROTOR CHIP LIGHT -M/R CHIP PLUG REMOVED AND CLEANED OCT 31. OCT 31 MADE ANOTHER FLIGHT 1.1 HRS NO CHIP LIGHT. NOV.1 ON START UP CHIP LIGHT ON M/R AGAIN. SHUT-DOWN AND INSPECTENov 1, 2001 · Robsin R22BETASDR CA011116015Bearing · failed(CAN) WHILE IN DESCENT TO THE LANDING AREA THE MAIN ROTOR TRANSMISSION CHIP LIGHT ILLUMINATED. THE PILOT MAINTAINED ITS APPROACH AND LANDED. UPON INSPECTION ON THE CHIP DETECTOR METAL WAS FOUND AND THEN THE WAFFER FILLER WAS CHECKED WHERE MORE METAL WAS FOUND.Nov 1, 2001 · Bell 212SDR HEEA077032Bearing · wornBEARING WORN.Nov 1, 2001 · N491PH · Bell 407SDR HEEA076974Stop · deterioratedDETERIORATION. REPLACED WITH SERVICEABLE PART.Oct 31, 2001 · N31077 · Bell 206L3SDR HEEA076945Transmission · making metalCHIP LIGHT ON LANDING. INSPECTED AND FOUND A 1/2" BY 3/16" PIECE OF A GEAR TOOTH ON THE LEFT CHIP PLUG. REPLACED WITH SERVICEABLE ASSEMBLY.Oct 31, 2001 · N911MJ · Skrsky S76ASDR HEEA076944Gear · mismanufacturedRIVET NOT INSTALLED IN GEAR. RIVET REQUIRED TO PREVENT OIL FROM LEAKING. PENDING VENDOR REPAIR.Oct 31, 2001 · Skrsky S76ASDR HEEA076911Bearing · overheatedBEARING OVERHEATED.Oct 24, 2001 · N404PH · Bell 407SDR HEEA076886Seal · leakingSEAL HAS OIL LEAK.Oct 24, 2001 · N417PH · Bell 407SDR HEEA076885Bearing · roughROUGH AND NOISY.Oct 24, 2001 · N742PH · Bell 407SDR ERAA076681Transmission · corrodedTRANSMISSION DUE 3100 HOUR INSPECTION. LOWER SPIDER BREAKING, UPPER SUN GEAR BREAKING, MAIN INPUT LINER, MAIN CASE HAS EXCESSIVE CORROSION DAMAGE, MAIN INPUT QUILL ALIGNMENT MARKS BEARING PINION OFF, RING GEAR OUTER SURFACE RUSTING, MAIN INPUT BEARING SLEEVE Oct 11, 2001 · N164EH · Bell 412SDR HEEA076558Transmission · making metalMAIN ROTOR TRANSMISSION MAKING METAL.Oct 10, 2001 · N721PH · Bell 407SDR HEEA076542Bearing · wornBEARINGS WORN.Oct 10, 2001 · N406PH · Bell 407SDR CA011105016Gearbox · making metal(CAN) ON ENGINE START UP - PILOT REPORTED MGB CHIP LIGHT ON, PULSED OFF AND 4 SECONDS LATER LIGHT BACK ON. ENGINE SHUT DOWN, MAG PLUG PULLED 2 SMALL FLAKED AND SOME FUZE ON PLUG. FINE OIL FILTER REMOVED AND FOUND TO BE CONTAMINATED WITH NUMEROUS, VARIOUS SIZEDOct 5, 2001 · Bolkms BO105CSDR HEEA076492Indicator · failedNO TRANSMISSION TEMPERATURE INDICATION. INDICATOR READ ZERO.Oct 4, 2001 · N740PH · Bell 407SDR HEEA076476Transmitter · malfunctionedPRESSURE INDICATOR NEEDLE PEGGED OUT ON HIGH SIDE. REPLACED WITH SERVICEABLE TRANSMITTER.Oct 4, 2001 · N3893N · Bell 412SDR HEEA076437Pump · leakingLEAKS PAST SEAL. REPLACED WITH SERVICEABLE PUMP.Oct 3, 2001 · N4835 · Bell 206L3SDR HEEA076436Valve · mismanufacturedIMPROPERLY MANUFACTURED THREADS, CANNOT BE INSTALLED INTO TRANSMISSION CASE WITHOUT CAUSING DAMAGE TO CASE THREADS. TRIED TO INSTALL VALVE INTO TWO DIFFERENT CASES AND COULD NOT.Oct 3, 2001 · Bell 206L3SDR HEEA076302Transmission · making metalTRANSMISSION MAKING METAL.Oct 1, 2001 · N5736D · Bell 212SDR HEEA076291Transmission · making metalTRANSMISSION MAKING METAL. SENT TO DRAKE AIR FOR INSPECTION AND REPAIR.Oct 1, 2001 · N800Y · Bell 412SDR ALG2002F00017Bearing · making metalMETAL WAS FOUND ON CHIP PLUGS, ENGINE AND GEARBOX DISASSEMBLED FOR INSPECTION. FOUND CAUSE FOR METAL DUE TO INNER RACE GALLING ON T/M JOURNAL BEARING, CAUSING METAL CONTAMINATION THROUGHOUT GEARBOX.Sep 30, 2001 · N577AL · Bell 407SDR R7MR33699Transmission · making metalMAKING METAL. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Sep 27, 2001 · N107LN · Bell 407SDR CA011005002Bevel Gear · broken(CAN) METAL PARTICLES FOUND IN SUMP FILTER AT 50 HOUR INSPECTION. TRANSMISSION REMOVED AND SENT FOR OVERHAUL. WHEN ROTOR BRAKE QUILL WAS REMOVED I NOTICED HEAVY WEAR ON THE TEETH OF THE PINION. INSPECTION OF THE SPIRAL BEVEL GEAR REVEALED TWO BROKEN TEETH AND Sep 26, 2001 · Bell 212SDR CA011105002Tube · corroded(CAN) DURING TRANSMISSION 1500 HOUR INSPECTION CORROSION AND PITTING FOUND ON THE FLARE OF THE TUBE ASSEMBLY.Sep 25, 2001 · Bell 206LSDR IVSA075920Actuator · failedCLUTCH ACTUATOR MOTOR FAILED FOR THE 2ND TIME. REPLACEMENT MOTOR INSTALLED. FURTHER TOUBLESHOOTING REVEALED SHEAVE ALIGNMENT OUT OF LIMITS CAUSING INFLIGHT ILLUMINATION OF CLUTCH LIGHT. ALIGNMENT CORRECTED AND FLIGHTS CONTINUED NORMALLY. BAD MOTOR RETURNED Sep 24, 2001 · N7189C · Robsin R44SDR AC2A076110Clip · crackedPART IS CRACKED. SOME REMOVED TO REDUCE RISK OF ENG. F.O.D. R & R CLIPSSep 17, 2001 · N430CV · Bell 430SDR CA011002003Bearing · failed(CAN) PILOT REPORTED A CHIP LIGHT & A LOUD GRINDING NOISE COMING FROM THE ENGINE REGION. THE PILOT MADE A PRECAUTIONARY LANDING TO A LANDING SIGHT. THE CHIP PLUGS WERE REMOVED & FOUND LARGE AMOUNT OF FLAKES. ON THE INVESTIGATION FOUND THE TWO AND A HALF BEARINSep 15, 2001 · Bell 206BSDR RYMA33656Transmission · failedMAKING METAL. TWO PRIOR PROBLEMS WITH MM WERE REPAIRED UNDER WARRANTY BY MFG. REPLACED WITH NEW UNIT CORRECTED PROBLEM.Aug 29, 2001 · N105LC · Bolkms BO105CBSSDR 2001F00506Transmission · making metalMAIN ROTOR TRANSMISSION MAKING METAL. TWO PRIOR PROBLEMS WITH MM WERE REPAIRED UNDER WARRANTY BY ECL. REPLACED WITH NEW UNIT CORRECTED PROBLEM. (M)Aug 29, 2001 · N105LC · Bolkms BO105CBSSDR HEEA075598Pump · leakingINTERNAL SEAL LEAKING.Aug 27, 2001 · N407PH · Bell 407SDR HEEA075656Bevel Gear · spalledGEAR TEETH SPALLING AT TOOTH ROOT. REPLACED WITH SERVICEABLE PART.Aug 21, 2001 · N911HM · Bolkms BO105SSDR HEEA075655Pinion Gear · spalledGEAR TEETH SPALLING AT TOOTH TIP. REPLACED WITH SERVICEABLE PART.Aug 21, 2001 · N911HM · Bolkms BO105SSDR HEEA075525Transmission · making metalMAKING METAL. REPLACED WITH SERVICEABLE ASSY.Aug 21, 2001 · N31077 · Bell 206L3SDR HEEA075489Filter Element · failedFILTER BYPASS EXTENDED. REPLACED WITH SERVICEABLE PART.Aug 21, 2001 · N2261D · Bell 412SDR HEEA075486Quill · leakingQUILL ASSY SEEPING. REPLACED WITH SERVICEABLE PART.Aug 21, 2001 · N2149S · Bell 412SDR 2002FA0000076Case · damagedFOUND HOLE IN MAIN GEARBOX CASING. (M)Aug 8, 2001 · N511ME · Urocop EC135T1SDR J8O2001F00000Bearing · damagedTRANSMISSION REMOVED FOR METAL ON CHIP DETECTORS. ON DISASSEMBLY IT WAS DISCOVERED THE DUPLEX BEARING PN 206-040-032-105 OUTER RACE WAS SPALLING AND 3 BALL BEARINGS HAD COME APART.Jul 27, 2001 · N303MP · Bell 206L3SDR CA050228011Gearbox · making metal(CAN) GEARBOX CHIP LIGHT, GEARBOX REPLACED.Jul 14, 2001 · Kamov KA32A1SDR 2001FA0000223Housing · corrodedMFG CONCESSION APPLIED TO MGB- INSTALLATION OF BEVEL GEAR AND BEVEL PINION GEAR. DISASSEMBLY OF MGB FOR MODIFICATION, CORROSION WAS ON SUPPORT STUDS OF THE LOWER HOUSING AND THE BORES OF MAIN MODULE OF THE AFFECTED STUDS, INSP REVEALED CORROSION IN THE BORES. Jul 12, 2001 · N120GB · Urocop EC120BSDR AC2A075815Sun Gear · flakingDRIVE SIDE TOP CORNER OF TOOTH FLAKING. REPAIRED.Jul 9, 2001 · N8775 · Bolkms BO105SSDR CA010727009Seal · leaking(CAN) OIL SEAL LEAKING IN RPM CABLE. REPLACE OIL SEAL PN CR 3687.Jul 7, 2001 · Scwzer 269DSDR CA010808003Bearing · spalled(CAN) TRANSMISSON REMOVED FROM A/C DUE TO METAL CONTAMINATION AND EXCESSIVE NOISE. ON DISASSEMBLY, MAIN INPUT GEAR SHAFT P/N 206040040003 WAS FOUND TO HAVE VERTICAL PLAY. AFTER REMOVING THE SHAFT AND THE DUPLEX THRUST BEARING P/N 2060400321 THE TOP BEARING OF Jul 6, 2001 · Bell 206BSDR CA010711005Link · broken(CAN) WHILE TRACKING & BALANCING THE MAIN ROTOR SYS THE PILOT & ENGINEER COULD FEEL AN UNUSUAL VERTICAL VIBS,ON THE NEXT FLIGHT UNUSUAL LATERAL VIBS,ENGINEER MADE ADJUSTMENT TO M/R SYS BUT THE READING ONTHEEQUIPMENT STILL READ ROUGH.WHILE RUNNING ON THE GROUNDJul 6, 2001 · Bell 205A1SDR AC2A075810Chip Detector · shortedPART IS CIRCUIT-SHORTED. REPLACED WITH SERVICEABLE PARTJun 25, 2001 · N7266F · Skrsky S76ASDR 2003FA0000184Transmission · making metalMAIN TRANSMISSION PRODUCING METAL CHIPS. CHIP SIZE EXCEED MAINTENANCE MANUAL LIMITS.Jun 23, 2001 · N3PD · Doug MD900SDR JYD2001F00002Plate · crackedCRACKS FOUND IN ROOT AREA OF THREE INTERNAL SPLINES OF LOWER PLATE OF 2ND STAGE PLANETARY PLATE ASSY. MAIN GEARBOX WAS REMOVED FOR OVERHAUL. DURING THE INSPECTION PROCESS, THREE CRACKS WERE DETECTED BY FLUORESCENT PENETRANT INSPECTION INTHE INTERNAL SPLINES Jun 20, 2001 · N176AC · Skrsky S64ESDR JYD2001F00001Shaft · crackedEIGHT CRACKS FOUND IN LOWER SPLINES OF MAIN ROTOR SHAFT. MAIN GEARBOX PN 6435200400065, SN A6171 WAS REMOVED FOR OVERHAUL HAVING A TOTAL TIME OF 8857.7 AND 1430.6 HOURS TIME SINCE OVERHAUL. THIS INCLUDES COMPLETING A 130.6 HOUR EXTENSION. DURING THE INSPECTJun 20, 2001 · N176AC · Skrsky CH54A
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