JASC 6320

Service difficulty reports · 1,931

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 95ZZZY0720Transmitter · failedPRESSURE TRANSMITTER WORKED FOR 30 MINUTES FROM INSTALLATION. AFTER 30 MINUTES UNIT FAILED TO INDICATE. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.Apr 5, 1995 · N158BK · Bolkms BK117A3SDR HEEA954642Chip Detector · defectiveINTERMITTENT FALSE AND DIM LIGHT INDICATION.Mar 28, 1995 · N6095S · Snias AS350B2SDR 95ZZZX2399Camshaft · crackedPILOT HEARD AN UNUSUAL GROWLING NOISE FROM THE NR 1 INPUT AT REDUCED POWER. A FEW HOURS LATER, A SLIGHT VIBRATION AT REDUCED POWER WAS FELT IN THE AIRFRAME. THE CHIP PLUG AND SCREEN WERE CHECKED AND A FEW SMALL SLIVERS WERE FOUND ON THE CHIP PLUG AND 12 SMALMar 27, 1995 · N1048Y · Skrsky S61ASDR 95ZZZX2083Gearbox Mount · lug missingWHILE REPLACING THE INTERMEDIATE GEARBOX FOR A SCHEDULED OVERHAUL, NOTED GEARBOX AIRFRAME MOUNT MISSING A BOLT LUG EAR. NO APPARENT CAUSE CAN BE ATTRIBUTED TO THIS FAILURE. REPLACED GEARBOX AIRFRAME MOUNT PN S1620-64128-3 IAW S-58T MM.Mar 27, 1995 · N26567 · Skrsky S58ETSDR HEEA954613Shaft Seal · leakingIN CRUISE FLIGHT, DEVELOPED LEAK FROM BOTTOM OF TRANSMISSION. REPLACED SEAL DUE TO SLIP RING RETAINER LEAKING.Mar 23, 1995 · N4391S · Bolkms BO105SSDR HEEA954608Transmission · chip warnTRANSMISSION CHIP LIGHT OUTBOUND. RETURNED TO BASE. CHIP LIGHT CAME FROM PLANETARY GEAR RING. CLEANED, PENALTY RUN OK AND RETURNED TO SERVICE.Mar 23, 1995 · N33008 · Bell 412SDR HEEA954600Housing · leakingINPUT SEAL LEAKING ON TRANSMISSION. INSTALLED SERVICEABLE SEAL ASSY.Mar 23, 1995 · N6160Z · Bell 206L3SDR HEEA954544Adapter · seal leakingSEAL LEAKING. ALSO REPLACED HOUSING P/N 206-040-052-009 AND SEAL P/N 206-040-156-101 AS AN ASSEMBLY. SEE MMIR'S #4542 AND #4543 FOR OTHER PARTS REPLACED.Mar 16, 1995 · N2277A · Bell 206BSDR HEEA954543Seal Assy · leakingSEAL LEAKING. ALSO REPLACED HOUSING P/N 206-040-052-009 AND ADAPTER P/N 206-040-048-003 AS AN ASSEMBLY. SEE MMIR'S #4542 AND #4544 FOR OTHER PARTS REPLACED.Mar 16, 1995 · N2277A · Bell 206BSDR HEEA954542Housing · seal leakingSEAL LEAKING. ALSO REPLACED SEAL P/N 206-040-156-101 AND ADAPTER P/N 206-040-048-003 AS AN ASSEMBLY. SEE MMIR'S #4543 AND #4544 FOR OTHER PARTS REPLACED.Mar 16, 1995 · N2277A · Bell 206BSDR 95ZZZX2365Seal · leakingNOTICED OIL ON TRANSMISSION DECK DURIING POST-FLIGHT AFTER FIRST FLIGHT OF THE DAY, 3-15-95. SUSPECT CHANGES IN TEMPERATURE OR LACK OF FLYING.Mar 15, 1995 · N505TJ · Bolkms BO105CSDR 95ZZZX1854Transmitter · failedAFTER LANDING, NOTICED THE TRANSMISSION OIL PRESSURE HAD DROPPED OUT OF THE GREEN AND THEN DROPPED TO ZERO PSI. REPLACED TRANSMISSION OIL PRESSURE TRANSMITTER.Mar 15, 1995 · N376AL · Skrsky S76ASDR 95ZZZX5306Transmitter · defectiveTRANSMITTER FAULTY. ERRATIC INDICATOR READINGS. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.Mar 14, 1995 · N7060G · Bolkms BK117B1SDR 95ZZZX1502Gear Tooth · failedPILOT REPORTED A M/R TRANS CHIP LIGHT. INITIAL INSPECTION FOUND A DOT SIZED CHIP. THE AIRCRAFT WAS RUN UP AND AT 108 PERCENT FLIGHT IDLE A LOUD KNOCKING NOISE WAS HEARD FROM THE TRANSMISSION. REMOVAL AND SUBSEQUENT DISASSEMBLY FOUND A 1 INCH SECTION OF A TOMar 10, 1995 · N5074R · Hughes 369DSDR 95ZZZX1352Shaft · crackedTRANSMISSION DISASSEMBLED FOR OVERHAUL. PERFORMED MAGNAFLUX INSPECTION OF MAST FOLLOWING STRUCTURAL FAILURE IN ANOTHER AIRCRAFT; .3750 INCH CRACK INDICATION FOUND BEGINNING AT DOWEL PIN HOLE TO UNDERCUT AT MAST BASE. AIRCRAFT HAS BEEN LOGGING FOR THE LAST 11Mar 7, 1995 · N1099T · Skrsky S58TSDR 95ZZZX1351Shaft · crackedTRANSMISSION DISASSEMBLED FOR OVERHAUL. PERFORMED MAGNAFLUX INSPECTION OF MAST FOLLOWING STRUCTURAL FAILURE OF ANOTHER MAST IN ANOTHER AIRCRAFT. FOUR INCH CRACK INDICATION FOUND BEGINNING AT DOWEL PIN HOLE TO UNDERCUT IN MAST BASE THEN UP MAST THROUGH BEARINMar 7, 1995 · N1078T · Skrsky S58TSDR HEEA954482Pump · leakingOIL LEAKING OUT OF SPLINE SHAFT. REPLACED SHAFT SEAL .Mar 2, 1995 · N5748Q · Bell 206L1SDR HEEA954468Pump · leakingLEAKING. REPLACED WITH SERVICEABLE OIL PUMP.Mar 1, 1995 · N2125M · Bell 206L1SDR HEEA954467Pump · leakingOIL PUMP INNER SEAL LEAKING. REPLACED WITH SERVICEABLE OIL PUMP.Mar 1, 1995 · N6160Z · Bell 206L3SDR CHI1429Bearing · spalledSPALLED BALL AND OUTER RACE. AFT TRANSMISSION WAS REMOVED FOR MAKING CHIPS. FOUND SPALLED BALLS AND OUTER RACE ON FAN DRIVE HOUSING ASSEMBLY BEARING. (X)Feb 16, 1995 · N237CH · Boeing 234SDR CHI1428Bearing · spalledSPALLED ROLLERS. AFT TRANSMISSION WAS REMOVED FOR MAKING CHIPS. FOUND SPALLED ROLLERS ON THE SECOND STAGE PLANET BEARING. (X)Feb 16, 1995 · N237CH · Boeing 234SDR CHI1427Bearing · spalledSPALLED ROLLER. THE TRANSMISSION WAS REMOVED FOR MAKING CHIPS. FOUND INPUT PINION BEARING ROLLERS SPALLED. (X)Feb 16, 1995 · N237CH · Boeing 234SDR HEEA954375Pump · leakingGARLOCK SEAL LEAKING. REPLACED WITH SERVICEABLE PUMP.Feb 15, 1995 · N6610Y · Bell 206L3SDR CHIR1425Clutch Shaft · bearing damagedON AND OFF THRUST LOADING OF THE INNER CLUTCH SHAFT CAUSES AXIAL MOVEMENT OF THE SHAFT. AS THE ALUMINUM SPACERS (PN 414D6215-1 AND PN 114D6261-1) WEAR, THE AXIAL MOVEMENT INCREASES UNTIL THE INNER SHAFT SHOULDER NEXT TO THE PN 114DS661-1 BEARING CONTACTS THE Feb 15, 1995 · N237CH · Boeing 234SDR CHI1426Bearing · pittedBEARING ROLLERS BREAKING DOWN AFTER SHORT PERIOD OF RUNNING TIME. PITTING WAS THE RESULT OF THE FATIGUE ON THE BEARING ROLLERS. WONDER IF THE ADDITION OF THE COPPER PLATING ON THE ID OF THE BEARING WAS TAKEN INTO ACCOUNT FOR THE OVERALL FITS AND CLEARANCES BFeb 15, 1995 · N237CH · Boeing 234SDR HEEA954351Liner · mis mfgNEW PART RECEIVED MISMANUFACTURED. ID OF LINER IS OUT OF LIMITS 6.222 AND 6.230.Feb 14, 1995 · Skrsky S76ASDR 95ZZZX837Bearing · misinstalledM/R TRANSMISSION INPUT ASSY WAS REMOVED TO CHANGE A LEAKY GARLOCK SEAL, NO AXIAL PLAY WAS NOTED. THE AXIAL PLAY SHOULD BE .009 INCH TO .015 INCH. REMOVED DUPLEX BEARING SET AND FOUND SPLIT RACES HAD BEEN SWITCHED WHEN IT HAD BEEN INSTALLED AT O/H. BRAZING WFeb 1, 1995 · N3115Y · Hughes 369DSDR 95ZZZX1343Rear Cover · crackedREAR COVER WAS FOUND CRACKED ON NR 2 GENERATOR BOSS. THIS WAS A SURFACE CRACK ON INSIDE OF GEARBOX REAR COVER, AND WAS FOUND AT OVERHAUL.Feb 1, 1995 · N1043T · Skrsky S61ASDR 95ZZZX1341Rear Cover · crackedREAR COVER LEFT SIDE LOWER WEB HAS 1 INCH CRACK ON FORWARD SIDE 5.25 INCHES INBOARD OF MOUNT BOLT. SUBMITTER STATED PERFORM INSPECTION PER SAFETY CHECK 1, ITEM 13.Feb 1, 1995 · N9119S · Skrsky S61NSDR CA951219105Main Case · cracked(CAN) CRACK FOUND ON WEB ABOVE INPUT BORE.Jan 18, 1995 · Bell 205A1SDR HEEA954073Packing · leakingGR BOX LEAKED EXCESSIVELY AFTER INSTALLATION. (APPEARS SEAL TO BE TOO THIN)Jan 4, 1995 · Bell 206L1
Back to JASC 6320