JASC 6720

Service difficulty reports · 852

Reports filed under 6720 · Tail Rotor Control System, 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 = '6720'
  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 HEEA0012390Bellcrank · mis mfgBELLCRANCK MISMANUFACTURED.Dec 29, 1997SDR HEEA0012383Rod · wornPITCH CONTROL ROD HAS WORN BEARING.Dec 22, 1997 · N60951 · Snias AS350B2SDR 98ZZZX289Bellcrank · mismanufacturedDURING REPLACEMENT OF COMPONENTS FOUND COULD NOT RIG TAIL ROTOR FOR FULL PEDAL MOVEMENT. TROUBLESHOOTING FOUND THAT BELLCRANK P/N 206-001-763-1 AND ROD ASSY P/N 206-011-751-101 WERE CONTACTING. FOUND THAT BELLCRANK DID NOT HAVE THE PROPER DEPTH GROOVE MACHINDec 17, 1997 · Bell 206L1SDR HEEA0012320Link · wornLARGE BEARING HAS .008 RADIAL PLAY.Dec 9, 1997 · N230UN · Bell 230SDR HEEA0012261Rod · wornT/R PITCH CHANGE LINK ROD END BEARINGS HAVE WEAR (AXIAL).Dec 5, 1997 · N40466 · Snias AS350B2SDR HEEA0012260Link · wornLINK HAS WORN BEARINGS. SERIAL NUMBERS REMOVED ARE NHFS2242 AND NHFS2275.Dec 5, 1997 · N417PH · Bell 407SDR HEEA0012165Link · wornFOUND LINK BEARINGS WORN. SERIAL NUMBERS REMOVED ARE NHFS-2945 AND NHFS-2931.Nov 28, 1997 · N437PH · Bell 407SDR HEEA0012097Actuator Assy · failedACTUATOR ASSY YAW CHANNEL TRIPS IN FLIGHT.Nov 19, 1997 · N5748M · Bell 214STSDR HEEA0012062Lever Assy · pittedLEVER ASSY PITTED IN AREA.Nov 19, 1997 · N2261D · Bell 412SDR HEEA0012058Actuator · leakingT/R ACTUATOR LEAKING.Nov 19, 1997 · N217UC · Bolkms BK117B1SDR 98ZZZX277Pitch Link · wornPITCH LINK WORN OUT OF LIMITS. REMOVED AND REPLACED 2 EACH.Nov 4, 1997 · N4UV · Bell 230SDR 98ZZZX272Pitch Link Assy · wornPITCH LINK ASSY (2 EACH) BEARINGS WORN. REMOVED AND REPLACED.Oct 28, 1997 · N117NC · Bolkms BK117C1SDR HEEA0011538Rod · wornPITCH CONTROL ROD WORN BEARINGS.Oct 16, 1997 · N6100R · Snias AS350B2SDR HEEA0011536Rod · defectivePITCH CONTROL ROD BEARINGS WERE .002 RADIAL MARKS ON SPHERICAL BALL, .003 ELASTOMERIC BULGING. SERIAL NUMBERS REMOVED ARE 2000 AND 2027.Oct 16, 1997 · N40466 · Snias AS350B2SDR HEEA0011533Rod · wornPITCH CONTROL ROD PLAY. SERIAL NUMBERS REMOVED ARE PMA129 AND PMA8640.Oct 16, 1997 · N350BZ · Snias AS350B2SDR HEEA0011500Lever · wornT/R GR BOX LEVER WEAR IN BUSHINGS CENTER BORE.Oct 14, 1997 · N6097Z · Snias AS350B2SDR HEEA0011498Link · wornLINK HAS WORN BEARINGS. SERIAL NUMBERS REMOVED ARE NHFS2265 AND NHFS2337.Oct 14, 1997 · N57416 · Bell 407SDR HEEA0011497Rod · wornBEARINGS EXHIBIT PLAY.Oct 14, 1997 · N6097Z · Snias AS350B2SDR HEEA0011496Rod · wornPITCH CONTROL ROD .002 AXIAL PLAY.Oct 14, 1997 · N60951 · Snias AS350B2SDR HEEA0011490Rod · wornPITCH CONTROL ROD WORN. SERIAL NUMBERS REMOVED ARE PMA2760 AND PMA131.Oct 14, 1997 · N6095S · Snias AS350B2SDR HEEA0011420Control Rod · failedNR1 PITCH ADI WON'T MOVE.Oct 10, 1997 · N2014K · Bell 412SDR HEEA0011416Accumulator · failedACCUMULATOR WILL NOT TAKE A CHARGE.Oct 9, 1997 · N60951 · Snias AS350B2SDR HEEA0011413Rod · defectiveT/R VIBRATION. PITCH CONTROL ROD DEFECT.Oct 9, 1997 · N40466 · Snias AS350B2SDR HEEA0011393Actuator · failedYAW CONTROL ROD INTERMITTENTLY LOCKED FULL LEFT.Oct 9, 1997 · N5759N · Bell 412SDR CA971113052Support Assembly · corroded(CAN) SEVERE CORROSION FOUND ON AFT LOWER SIDE OF TAIL ROTOR FORWARD CONTROL ROD BELLCRANK SUPPORT.Oct 9, 1997 · Bell 206BSDR HEEA0011157Actuator · defectiveYAW CHANNEL KICKS IN ALL MODES.Oct 2, 1997 · N21498 · Bell 412SDR HEEA0011115Actuator · leakingACTUATOR LEAKING BEYOND LIMITS.Sep 30, 1997 · N911LK · Bolkms BK117B2SDR HEEA0011105Actuator Assy · malfunctionPITCH KICKS OFF ON LANDING AND TAKE OFF.Sep 30, 1997 · N5748M · Bell 214STSDR 97ZZZX3894Rod · wornDURING A DAILY VISUAL INSPECTION, DISCOVERED THE BEARING IN THE OUTBOARD END OF THE TAIL ROTOR PITCH CHANGE ROD HAD ALMOST COMPLETELY SEPARATED FROM THE HOUSING. THE PILOT OF THE PREVIOUS FLIGHT DID NOT NOTICE ANY ABNORMALITIES IN THE OPERATION OF THE AIRCRAFSep 4, 1997 · N6097Z · Snias AS350B2SDR 98ZZZX669Blade · erodedNOTAR FAN BLADE ASSY HAS EXCESSIVE EROSION. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Aug 28, 1997 · N901CF · Doug MD900SDR 98ZZZX664Bearing · wornCONTROL BEARING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.Aug 28, 1997 · N901CF · Doug MD900SDR 98ZZZX659Blade · erodedNOTAR FAN BLADE ASSY HAS EXCESSIVE EROSION. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Aug 28, 1997 · N901CF · Doug MD900SDR 98ZZZX658Bearing Race · wornTHRUSTER BEARING RACE WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Aug 28, 1997 · N901CF · Doug MD900SDR HEEA0010612Bellcrank Assy · wont fit(REFERENCE BHT-412-IPB, FIGURE 67-17) WHEN INSTALLING NEW BELLCRANK (ITEM#40), TAIL ROTOR CONTROL TUBE (ITEM#52) CLEVIS WOULD NOT SLIDE OVER BEARING (ITEM#45) OF BELLCRANK WHEN NEW BELLCRANK COMPARED TO OLD BELLCRANK. OBSERVED THAT PART NUMBER OFBEARING (ITEMAug 7, 1997 · N3893P · Bell 412SDR 97ZZZX3761Link · seizedDURING 300-HOUR INSPECTION, FOUND BEARINGS LOCKED UP IN FAN PITCH CHANGE ARM AREA.Jul 29, 1997 · N524FB · Hughes 500NSDR 98ZZZX1514Pitch Link · wornPITCH LINK ASSY HAS WORN BEARINGS. REMOVED AND REPLACED.Jul 22, 1997 · N317MC · Bolkms BK117C1SDR HEEA0010531Rod Bearig · wornEXCESS WEAR IN PITCH CONTROL ROD SPHERICAL BEARING.Jul 21, 1997 · N6097Z · Snias AS350B2SDR HEEA0010530Control Rod · wornCONTROL ROD HAS EXCESS WEAR IN SPHERICAL BEARING.Jul 21, 1997 · N6097Z · Snias AS350B2SDR HEEA0010387Accumulator · leakingACCUMULATOR LEAKING AT VALVE.Jul 7, 1997 · N60951 · Snias AS350B2SDR 97ZZZX3586Pitch Link · wornPITCH LINK HAS WORN BEARINGS. REMOVED AND REPLACED.Jul 2, 1997 · N4UV · Bell 230SDR HEEA0010198Actuator · leakingT/R ACTUATOR LEAKING HYRAULIC FLUID.Jun 23, 1997 · N911NC · Bolkms BK117A3SDR HEEA0010170Actuator Assy · wornACTUATOR ASSY BEARINGS WORN.Jun 19, 1997 · N5748M · Bell 214STSDR 98ZZZX1515Pitch Link · wornBEARINGS WORN IN PITCH LINK ASSY. REMOVED AND REPLACED.Jun 19, 1997 · N317MC · Bolkms BK117C1SDR 97ZZZX3209Bushing · crackedBUSHING CRACKED, THREE PLACES IN FLANGE. BUSHING IS LOCATED IN BELLCRANK SUPPORT AT THE AFT END OF THE TAILBOOM, AND IS PART OF THE TAIL ROTOR CONTROL SYSTEM. FAILED BUSHING IS THE UPPER OF TWO BUSHINGS LOCATED IN THE BELLCRANK SUPPORT. NO DAMAGE WAS FOUND IJun 19, 1997 · N173P · Bell 206L3SDR CA970609010Swashplate · noisy(CAN) DURING SCHEDULED MAINTENANCE, THE T/R SWASHPLATE FELT ROUGH AND NOISY. BEARING CAN BE HEARD RATTLING IN CAGE. THERE DOES NOT APPEAR TO BE ANY LOSS OF LUBRICANT.May 22, 1997 · Hughes 369DSDR 97ZZZX4424Control Cable · mismanufacturedDURING FLIGHT CONTROL RIGGING, TECHNICIAN COULD NOT RIG THE TAIL ROTOR IAW CHAPTER 67-20-00, PARAGRAPH 1, PAGE 501 OF THE SA4077-76-2 MM. UPON REMOVAL OF CONTROL CABLE 76400-03191-051, FOUND THE CABLE WAS .25 INCH SHORTER THAN A KNOWN SERVICEABLE CABLE. UPONMay 21, 1997 · N1547K · Skrsky S76ASDR 97ZZZX4423Control Cable · mismanufacturedDURING FLIGHT CONTROL RIGGING, TECHNICIAN COULD NOT RIG THE TAIL ROTOR IAW CHAPTER 67-20-00, PARAGRAPH 1, PAGE 501 OF THE SA4077-76-2 MM. UPON REMOVING CONTROL CABLE 76400-03191-043, FOUND THE CABLE WAS .375 INCH SHORTER THAN THAT OF A KNOWN SERVICEABLE CABLEMay 21, 1997 · N1547K · Skrsky S76ASDR HAIHEEA9886Pitch Link · wornT/R PC LINK WORN. SERIAL NUMBERS REMOVED ARE 3588 AND M5969.May 19, 1997 · N6095S · Snias AS350B2SDR 97ZZZX2773Rod End Bearing · wornACCELERATED LATERAL BEARING WEAR. EXCEEDED LIMITS WITHIN 304 HOURS. THIS ROD END NORMALLY LASTS UP TO 1,000 HOURS IN SERVICE. INSTALLED 2 NEW 01-691-04 BEARINGS.May 19, 1997 · N890JR · Enstrm F28FSDR 97ZZZX2554Rod End Bearing · wornACCELERATED LATERAL BEARING WEAR. EXCEEDED LIMITS WITHIN 304 HOURS. THIS ROD END NORMALLY LASTS UP TO 1,000 HRS IN SERVICE. INSTALLED 2 NEW 01-691-04 BEARINGS.May 19, 1997 · N890JR · Enstrm F28F
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