JASC 6420

Service difficulty reports · 907

Reports filed under 6420 · Tail 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 = '6420'
  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 CA040916009Hub · cracked(CAN) DURING NDT INSPECTION THE HUB WAS FOUND TO HAVE A CRACK INDICATION ON ONE OF THE EARS. THE INDICATION WAS BLENDED, WITH APPROX. .010-.015 INCH OF MATERIAL BEING REMOVED. THE HUB WAS THEN RE-INSPECTED AND INDICATIONS OF THE DEFECT WERE STILL EVIDENT UNDSep 14, 2004 · Skrsky S61NSDR ALGA097281Trunnion · corrodedTAIL ROTOR TRUNNION HAS CORROSION DAMAGE ON SPLINES. REPLACED W/SERVICEABLE HOUSING BY OVERHAUL SHOP.Sep 7, 2004 · N265AL · Bell 206L4SDR ALGA097279Bearing · damagedTAIL ROTOR BEARING HAS FLAT SPOTS ON NEEDLE ROLLERS. REPLACED W/NEW PART BY OVERHAUL SHOP.Sep 7, 2004 · N265AL · Bell 206L4SDR ALGA097278Housing · peelingBLUE EPOXY COATING PEELING. REPLACED W/SERVICEABLE HOUSING BY OVERHAUL SHOP.Sep 7, 2004 · N265AL · Bell 206L4SDR I7LA0002746Trunnion · overheatedSEPT 5, 2004. AIRCRAFT TT: 3518.7 UPON 25 HOUR INSPECTION, TAIL ROTOR TRUNION ENAMEL PAINT DISCOLORED. SIGNS OF EXCESSIVE HEAT.Sep 5, 2004 · N901HC · Agusta A109K2SDR I7AL0002748Trunnion · overheatedUPON DAILY INSPECTION, MECHANIC FOUND ABNORMAL PLAY IN TAIL ROTOR ASSEMBLY. TRUNION- FURTHER INSPECTION FOUND SIGNS OF EXCESSIVE HEAT TO TRUNION ENAMEL PAINT DISCOLORED (BROWN).Sep 2, 2004 · N901HC · Agusta A109K2SDR CA040821001Spherical Bearin · failed(CAN) A/C WAS CLIMBING AFTER FILLING THE WATER BUCKET WHEN HE LOST COMPLETE TAIL ROTORAUTHORITY.THE A/C MADE SEVERAL 360 DEGREE TURNS AFTER COMING TO REST IN A CON FINED AREA. SUBSTANTIAL DAMAGE WAS DONE TOTHE MAIN ROTOR BLADES AS THEY STRUCK A TREE UPON LANDIAug 20, 2004 · Bell 205A1SDR I7LA0002736Trunnion · looseUPON DAILY INSPECTION, MECHANIC NOTED EXCESSIVE PLAY IN TAIL ROTOR HUB AT TRUNION AREA. TAIL ROTOR HUB WAS REMOVED FOR INSPECTION A SOFT FACE MALLET WAS REQUIRED TO FREE THE TRUNION FROM TAIL ROTOR GEARBOX OUTPUT SHAFT. REMOVAL OF TRUNION NOTED SIGNS OF EXCEAug 20, 2004 · N901HC · Agusta A109K2SDR MDR04061Bearing Race · crackedTAIL ROTOR HEAD WAS REMOVED FROM AC DUE TO SUDDEN LEAKAGE FROM TAIL ROTOR GRIP. DISASSEMBLED TAIL ROTOR HEAD AND FOUND THE SHOULDER BOLT INNER RACE CRACKED ON THE BACK SLEEVE AND SPINDLE. CRACK TRAVELS COMPLETELY ACROSS BEARING CONTACT SURFACE AND COMPLETELYAug 19, 2004 · N159AC · Skrsky CH54BSDR ERAA097079Bushing · roughNEW BUSHING THAT IS ROUGH AND UNFINISHED. ID IS TOO LARGE. WHEN INSTALLED ON INNER SLEEVE, BUSHING SPINS LOOSE. SUSPECT IMPROPER MANUFACTURE OF BUSHING. RETURNING ON ERA PACK SLIP NR 5956 REQUESTING CREDIT FOR REPLACEMENT PART.Aug 17, 2004 · Bolkms BO105ASDR I7LA0002728Trunnion · overheatedUPON 25 HOUR INSPECTION, SIGNS OF HEAT NOTED. ENAMEL PAINT WAS BROWN-DISCOLORED.Aug 12, 2004 · N901HC · Agusta A109K2SDR KBM2004F00191Bearing · wornT/R SPIDER END BALL BEARINGS WORN BEYOND LIMITS. REMOVED AND REPLACED.Aug 7, 2004 · N115SH · Snias AS350B2SDR I7LA0002725Trunnion · overheatedUPON 25 HOUR INSPECTION, TRUNION SHOWS SIGNS OF EXCESSIVE HEAT, DISCOLORED (BROWN) COATING. ENAMEL PAINT.Aug 5, 2004 · N109RX · Agusta A109K2SDR ERAA097521Rotor Head · damagedINNER SLEEVE HAT BUSHING DIMENSION TOO LARGE. COULD NOT INSTALL. REMOVED MOUNTING FORK AND BLADE ASSEMBLIES. REMOVED AND REPLACED 2 EA INNER SLEEVE HAT BUSHINGS. MILLED TO PROPER DIMENSIONS AND LINE REAMED BORGS AS REQUIRED. VISUALLY INSPECTED AND FOUND NAug 4, 2004 · N149EH · Bolkms BO105SSDR HXSD2004802Gearbox · making metalPILOT REPORTED A CHIP LIGHT FOR THE TAIL ROTOR GEAR BOX. MECHANIC INVESTIGATED AND FOUND FOUR HAIR LINE SLIVERS ON THE CHIP PLUG ALL WHICH EXCEEDED LIMITS AS DESCRIBED BY THE MM. REMOVED THE GEAR BOX (PN 369D25400 SN 0295) AND INSTALLED SERVICEABLE GEAR BOX Aug 2, 2004 · N5134V · Hughes 369DSDR ERAA098189Rotor Head · crackedTAIL ROTOR CRACKED INNER SLEEVE BUSHING. TEFLON BUSHINGS WORN, INNER SLEEVE STEEL BUSHINGS WORN, GASKETS ROTTEN, 2 SLEEVES CORRODED, 1 RING CORRODED. COMPLETELY DISASSEMBLED FOR INSPECTION. REPLACED UNSERVICEABLE PARTS. C/W 1200 HR AND 2400 HR INSPECTIONS Jul 30, 2004 · N149EH · Bolkms BO105SSDR ERAA097094Rotor Head · out of balanceUNABLE TO BALANCE HIGH FREQ, TRUNNION HAS PLAY. PITCH HORN BUSHINGS MISSING, NO PLAY IN YOKE BRHS, TRUNNION FEELS GOOD, NO DETECTABLE PLAY. TRUNNION SPLINES ARE WEAR STEPPED. SCRAPPED TRUNNION. DISASSEMBLED T/R ASSY, REPAIRED T/R BLADE A-10206, INSTALLED NJul 22, 2004 · N164EH · Bell 412SDR KBM2004F00154Pin · wornT/R EXPANDABLE PIN WORN. REMOVED AND REPLACED.May 24, 2004 · N345SH · Snias AS350B2SDR KBM2004F00152Bearing · wornT/R HALF SHELLS WORN BEYOND LIMITS. REMOVED AND REPLACED.May 23, 2004 · N345SH · Snias AS350B2SDR KBM2004F00187Spider · wornT/R SPIDER BALL END WORN. REMOVED AND REPLACED.May 6, 2004 · N215LA · Snias AS350B1SDR KBM2004F00066Ball End · wornTAIL ROTOR SPIDER END BEARINGS WORN, REQUS REPLACEMENT. REMOVED AND REPLACED.May 3, 2004 · N345SH · Snias AS350B2SDR AUS20040343Fitting · cracked(AUS) TAIL ROTOR GEARBOX MOUNT CRACKED FROM BOLT HOLE.Apr 29, 2004 · Bolkms BK117B1SDR BAQA094295Bearing · wornBEARINGS WORN IN FORK LINK. REPLACED WITH SERVICABLE ASSET UNIT. 04/29/2004Apr 19, 2004 · N945ME · Bolkms BK117B1SDR BAQA094294Bearing · wornBEARINGS WORN IN FORK LINK. REPLACED WITH SERVICABLE ASSET UNIT. 04/29/2004Apr 19, 2004 · N945ME · Bolkms BK117B1SDR BAQA094069Bearing · wornFORK LINK BEARING WORN PREMATURELY. S/N 3040 WAS TAKEN FROM ASSET AND USED ON PBH. REC'D S/N 3675 FROM AEC TO REPLACE ASSET STOCK. REPLACED WITH SERVICABLE UNIT FROM AEC.Apr 1, 2004 · N955ME · Bolkms BK117A1SDR ERAA097101Rotor Head · bindingBINDING TAIL ROTOR BLADE. NORMAL WEAR ON BUSHINGS AND SLEEVES ACTION TAKEN: DISASSEMBLED, CLEANED AND VISUALLY INSPECTED ALL PARTS. C/W 300 HR / 2400 HR BLADE INSPECTION ON BLADES SN 658 AND 663. INSTALLED NEW INNER SLEEVE BUSHING AND NEW GRIP BUSHING. NEMar 31, 2004 · N293EH · Bolkms BO105SSDR CA040805008Bearing · worn(CAN) WHILE PERFORMING A 100 HOUR INSPECTION THE TAIL ROTOR SPIDER WAS DISCONNECTED FROM THE INPUT BELLCRANK TO CHECK THE SPIDER SWASHPLATE BEARING. NOTICED THAT THE BALL END BEARING ON THE SWASHPLATE INPUT WAS WORN OUT. ( IPC 65.20.30 FIG 1A ITEM 95 ) MEASURMar 17, 2004 · Snias AS350B2SDR CA040318004Grease Fitting · clogged(CAN) DURING 50 HOUR LUBRICATION INTERVAL. FITTINGS WOULD NOT PASS GREASE. FITTING REPLACED.Mar 11, 2004 · Bell 206BSDR KBM2004F00028Bearing · wornTAIL ROTOR BLADE HALF SHELL BEARING WORN OUT. REMOVED AND REPLACED.Mar 7, 2004 · N1188P · Snias AS350BASDR KBM2004F00042Ball · excess playTAIL ROTOR PC SPIDER END BALL BEARING HAS EXCESSIVE PLAY. REMOVED AND REPLACED.Mar 4, 2004 · N313LV · Snias AS350B2SDR KBM2004F00036Case · wornTAIL ROTOR HALF SHELLS WORN AND TORN. REMOVED AND REPLACED.Mar 1, 2004 · N230SH · Snias AS350BASDR KBM2004F00071Bearing · shearedTAIL ROTOR HUB HINGE SPHERICAL LAMINATED BEARING IS SHEARED. REMOVED AND REPLACED.Jan 24, 2004 · N350SH · Snias AS350BASDR KBM2004F00017Bearing · wornTAIL ROTOR HUB LAMINATED RUBBER HINGE BEARING ARE WORN BEYOND LIMITS. REMOVED AND REPLACED WITH NEW.Jan 22, 2004 · N884SH · Snias AS350B2SDR JYD2004F00002Rotor Head · crackedDURING NORMAL AC INSPECTION, THE FOLLOWING WAS FOUND; THE OB SIDE OF THE POCKET IS CRACKED 1.8125 INCH FROM THE TRAILING EDGE AND .25 INCH FROM THE TIP END. THE CRACK IS RUNNING SPAN WISE AND IS 6875 INCH LONG. PROBABLE CAUSE UNKNOWN. (MDR04-042)Jan 22, 2004 · N194AC · Skrsky S64ESDR JYD2004F00001Rotor Head · crackedDURING NORMAL AC INSPECTION, THE FOLLOWING WAS FOUND; THE OB SIDE OF THE POCKET HAS 3 CRACKS RUNNING SPANWISE APPROXIMATELY .398 INCH FROM THE TRAILING EDGE. THE FIRST CRACK IS 7.5 INCH FROM THE TIP END AND .835 INCH LONG. THE SECOND CRACK IS 9 INCHES FROM Jan 22, 2004 · Skrsky S64ESDR JYD2004F00000Rotor Head · crackedDURING NORMAL AIRCRAFT INSPECTION, THE FOLLOWING WAS FOUND: TWO SPANWISE CRACKS EXIST AT THE T/E ON THE OB SIDE. THE FIRST CRACK IS 7.25 INCHES FROM OB END OF THE POCKET AND IS 1.25 INCHES IN LENGTH. THE SECOND CRACK IS 14.5 INCHES FROM THE OB END OF THE POCJan 22, 2004 · N229AC · Skrsky S64ESDR KBM2004F00106Pitch Link · crackedTAIL ROTOR PITCH LINK, CRACKED BUSHING. REMOVED AND REPLACED.Jan 13, 2004 · N751H · Snias AS350B2SDR KBM2004F00076Bearing · wornHALF SHELL BEARING IS WORN BEYOND LIMITS. REMOVED AND REPLACED.Jan 9, 2004 · N53SH · Snias AS350B1SDR BAQA091942Torsion Bar · distortedTAIL ROTOR TORSION BAR DISTORTED. REPLACED WITH SERVICABLE UNITS. 01/23/2004Jan 6, 2004 · N533ME · Urocop EC135T1SDR KBM2004F00057Housing · crackedTAIL ROTOR LAMINATED HALF SHELLS CRACKED BEYOND LIMITS. REMOVED AND REPLACED.Jan 5, 2004 · N313LV · Snias AS350B2SDR KBM2004F00068Bearing · wornTAIL ROTOR LAMINATED HALF BEARINGS WORN. REMOVED AND REPLACED WITH SERVICEABLE UNIT.Jan 4, 2004 · N350SH · Snias AS350BASDR ERAA092653Bushing · misinstalledUNABLE TO ADJUST FOR PEDAL FORCE. TEFLON ON GRIP BUSHINGS FLAKING. COMPLY PREINSPECTION AND NOTED NO DEFECTS. DISASSEMBLED AS FAR AS NECESSARY FOR REPAIR. VISUALLY NOTED TEFLON FLAKING ON GRIP BUSHING. POSSIBLE CAUSE OF ABOVE DISCREPANCY. NO OTHER DISCREDec 29, 2003 · N152EH · Bolkms BO105SSDR ERAA094450Rotor Head · debondedBEARING DEBONDING CAUSING BINDING. OB BUSHING ON INNER SLEEVE HAD SLIPPED. GRIP BUSHINGS WORN. ACTION TAKEN: C/W PRE INSPECTION AND FOUND INNER SLEEVE BUSHING NOT SEATED. DISASSEMBLED AS FAR AS NECESSARY FOR REPAIR, CLEANED AND VISUALLY INSPECTED PARTS. Dec 14, 2003 · N293EH · Bolkms BO105SSDR 2003121Roll Pin · loosePILOT COMPLAINED OF NOISE AND VIBRATION ON SHUT DOWN. INSPECTED MAIN ROTOR HUB, FOUND ROLL PINS ON DROOP STOP FOLLOWER ASSEMBLIES HAD BACKED OUT AND WERE CONTACTING THE LOWER SHOE. THE INTERFERENCE WAS CAUSING THE FOLLOWERS TO BE FROZEN IN PLACE. WHEN THE ADec 9, 2003 · N369AW · Hughes 369DSDR BAQA091589Torsion Bar · bentTAIL ROTOR TORSION BAR BENT OUT OF TOLERANCE. REPLACE SERVICEABLE UNIT.Dec 9, 2003 · N135ME · Urocop EC135P1SDR BAQA090674Bearing · wornFORK LINK BEARING HAS PLAY. REPLACED WITH SERVICEABLE UNIT.Dec 3, 2003 · N945ME · Bolkms BK117B1SDR CA040114008Rotor Head · inoperative(CAN) UPON RECEIPT OF AD2003-24-51 HELICOPTER WAS INSPECTED FOR THE SUSPECT NAS6605-31BOLTS. EVEN THOUGH THE R44 S/N WAS NOT LISTED IN THE AD OR ROBINSON HELICOPTER SERVICE BULLETIN 51 THE T/R HUB NAS6605-31BOLTS WERE FOUND TO HAVE THE VENDOR IDENTIFICATION MADec 2, 2003 · Robsin R44SDR S9HA265YASpar · crackedPILOT HEARD USUAL NOISE WHILE FLEXING TAIL ROTOR BLADES DURING PREFLIGHT. MAINTENANCE REPLACED THE TAIL ROTOR WITH A SERVICEABLE TAIL ROTOR FROM A ANOTHER AIRCRAFT. UPON TEAR DOWN INSPECTION A CRACK IN THE SPAR 10MM WIDE BY 150MM IN LENGTH ON THE LEADING OF Dec 1, 2003 · N352NT · Snias AS350BASDR BAQA091233Laminate Stop · corrodedTEFFLON WORN OUT, CORROSION.Nov 21, 2003 · N955ME · Bolkms BK117A1SDR BAQA091232Sleeve · wornTAIL ROTOR SLEEVE WORN IN O-RING CONTACT AREA. CORROSION INSIDE. REPLACED WITH SERVICEABLE UNIT.Nov 21, 2003 · N955ME · Bolkms BK117A1
Back to JASC 6420