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 HEEA072441Bushing · wornBUSHINGS AND ROD ENDS WORN. REPLACED WITH SERVICEABLE PART.Apr 10, 2001 · N6559Z · Bell 412SDR HEEA072113Control Unit · damagedCAUSES PEDAL STOP TO ENGAGE INTERMITTENTLY WITHOUT ELECTRICAL OR MECHANICAL INPUT.Apr 6, 2001 · N740PH · Bell 407SDR HEEA072038Link · wornMAIN ROTOR VIBRATION. REPLACED WITH SERVICEABLE ASSY.Apr 5, 2001 · N2149S · Bell 412SDR HEEA072021Link · wornWORN BEARING. REPLACED WITH SERVICEABLE ASSY.Apr 5, 2001 · N142PH · Bell 412SDR HEEA072020Link · wornWORN BEARING. REPLACED WITH SERVICEABLE ASSY.Apr 5, 2001 · N142PH · Bell 412SDR HEEA071938Link · wornBEARINGS WORN. REPLACED WITH SERVICEABLE PART.Apr 3, 2001 · N3911L · Bell 412SDR HEEA071937Link · wornBEARINGS WORN. REPLACED WITH SERVICEABLE PART.Apr 3, 2001 · N2148K · Bell 412SDR HEEA071936Link · wornBEARINGS WORN. REPLACED WITH SERVICEABLE PART.Apr 3, 2001 · N3893L · Bell 412SDR HEEA071935Link · wornBEARINGS WORN. REPLACED WITH SERVICEABLE PART.Apr 3, 2001 · N2148K · Bell 412SDR 20010319CW007Control Cable · bindingWHILE PILOT WAS FLYING ON TOUR FLIGHT, NOTICED THAT TAIL ROTOR CONTROL PEDAL STUCK. PILOT MADE A PRECAUTIONARY LANDING. INSPECTED AIRCRAFT, FOUND THAT TAIL ROTOR CABLE WAS BINDING . REMOVED AND REPLACED TAIL ROTOR CABLE. COMPLIED WITH OPERATIONAL CHECK ANMar 19, 2001 · N971H · Snias AS350BASDR KBMA88703Pitch Link · crackedTAIL ROTOR PITCH LINK CRACKED AT SILENT BLOCK.Mar 10, 2001 · N53SH · Snias AS350B2SDR R7MR33264Bearing · wornTHRUSTER BEARING RACE, WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jan 27, 2001 · N901CF · Doug MD900SDR KBMA88585Bushing · crackedBUSHING CRACKEDJan 27, 2001 · N115SH · Snias AS350B2SDR KBMA97421Link · damagedPITCH CONTROL LINK EXCEEDS INSPECTION CRITERIA.Jan 7, 2001 · N350SH · Snias AS350BASDR R7MR32643Rod · wornPITCH CONTROL ROD WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jan 4, 2001 · N103LN · Snias AS350B3SDR LV6A95130Rod · brokenCLAMP BROKE DUE TO EXCESSIVELY TIGHT ROUTING AND WHEN CLAMP BROKE, IT ALLOWED THE FCU CABLE THAT IT WAS RETAINING TO SNAP AGAINST ROD AND RADICALLY CHAFE INTO TUBE. THE CABLE ROUTING AND TIEING WAS BY MANUFACTURING.Dec 4, 2000 · N313LV · Snias AS350B2SDR 20010206CW009Servo · crackedCRACK DETECTED ON LOWER END OF SERVO BODY ABOVE END CAP. EDDY CURRENT TESTING.Nov 4, 2000 · Aerosp AS355F1SDR 20001215SH022Accumulator · leakingACCUMULATOR LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)Nov 3, 2000 · N52285 · Snias AS350B3SDR 20001101SH030Tube · damagedFOUND DURING SCHEDULED INSPECTION, MECHANICAL DAMAGE FROM AFT BOLTHEAD AT AFT BELLCRANK. REPLACED WITH NEW CONTROL TUBE FROM BELL HELICOPTER.Oct 16, 2000 · N52AZ · Bell 407SDR 20001106SH085Control Rod · chafedPILOT REPORTED, DURING THROTTLE ADVANCE ON RUN-UP, A LOUD RUMBLING NOISE AND SEVERE VIBRATION STARTED ABRUPTLY AS TORQUE APPROACHED 40 PERCENT TORQUE. INSP OF ALL SYS BY MECH FOUND NO PROBLEM AREA. TWO SUBSEQUENT RUNS PRODUCED NO REPEAT OF PROBLEM THIRD RUN,Oct 15, 2000 · N954SD · Hughes 500NSDR 20001215SH039Rod · wornPITCH CONTROL ROD WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)Sep 14, 2000 · N93LG · Snias AS350B2SDR 20001107SH024Sleeve · wornSLEEVE, NOTAR FAN HUB, WORN BEYOND SERVICEABLE LIMITS. REPLACED 13 EACH WITH NEW UNIT, CORRECTED PROBLEM. (X)Sep 12, 2000 · N901CF · Doug MD900SDR 20001107SH023Bearing · wornBEARING RACE, THRUSTER, WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)Sep 12, 2000 · N901CF · Doug MD900SDR CA000925030Pitch Link · cracked(CAN) CRACK DISCOVERED DURING DAILY INSPECTION. (X)Sep 11, 2000 · Bell 206BSDR 20000925SH007Pitch Slider · corrodedDURING REMOVAL OF NO TAIL ROTOR (NOTAR) FAN BEARING, DISCOVERED THE FAN PITCH SLIDER, P/N 500N5367-3, AND FAN SUPPORT SHAFT, P/N 500N5357-11, HAD PITTING CORROSION. A NEW SUPPORT SHAFT AND SLIDER WERE INSTALLED. WITH NEW PARTS INSTALLED, A CONDITION OF EXCESSep 8, 2000 · N603BP · Doug 600NSDR 20001026SH022Rod · wornPITCH CONTROL ROD WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)Aug 29, 2000 · N104LN · Snias AS350B3SDR 20001030SH025Rod · wornROD, PITCH CONTROL WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)Aug 26, 2000 · N52281 · Snias AS350B3SDR 20001101SH020Bearing · brinelledMAJOR BRINELLING ON INNER AND OUTER RACE. AIRCRAFT WAS REPORTED TO HAVE LOST TAIL ROTOR CONTROL IN-FLIGHT. NO INJURIES OR MAJOR DAMAGE. (X)Aug 23, 2000 · N31660 · Aerosp SA316BSDR 20001215SH036Rod · wornPITCH CONTROL ROD WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)Aug 9, 2000 · N92LG · Snias AS350B2SDR CA001205005Washer · missing(CAN) WHEN INVESTIGATING EXCESSIVE PLAY OF THE PILOTS PEDAL ADJUSTMENT, IT WAS NOTED THAT MISSING AND INCORRECT PARTS EXISTED. B0500-26 WASHERS WERE MISSING FROM THE ASSEMBLY AND THE TIE BOLT HAD ALMOST 1/4 OF END PLAY. (NOTE: PARTS ON ORDER.)Jul 12, 2000 · Bell 206BSDR 20000919SH002Bearing · wornDIVITS RESULTING FROM BEARING WEAR BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)May 25, 2000 · N901CF · Doug MD900SDR CA000530011Bearing · rough(CAN)WHILE PERFORMING AN INSPECTION OF THE TAIL ROTOR PITCH CHANGE SPIDER BEARINGS FOR ROUGHNESS, DRAG AND TORQUE, (AWD 1999-085-076(A)R2). IT WAS DISCOVERED THAT BEARING WAS VERY ROUGH AND RATCHETY. THE AWD IS A REPETITIVE AWD FOR EVERY 50 HOURS. MANUMay 15, 2000 · Snias AS350BASDR 20000801SH019Rod · wornROD, PITCH CONTROL WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)May 1, 2000 · N101LN · Snias AS350B2SDR CA000614011Pitch Link · unsafetied(CAN) DURING MAINTENANCE, PERFORMED BELOW THE ENGINE PAN, A TAIL ROTOR FLIGHT CONTROL BOLT WAS FOUND UNFASTENED. T/R ANTI-TORQUE CONTROL TUBE (ITEM NR 21, 206 IPC FIG.67-2) REAR ATTACHMENT BOLT FOUND WITH NUT BACKED OFF, NO COTTER PIN INSTALLED. AIRCRAFT GROApr 27, 2000 · Bell 206BSDR 20000605SH004Control Rod · wornPITCH CONTROL ROD WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)Apr 20, 2000 · N47MA · Snias AS350B3SDR CA000518013Pitch Link · unserviceable(CAN) DURING A TAILROTOR (T/R) GEARBOX CHANGE,THE T/R PITCH CHANGE BELLCRANK WAS FOUND DAMAGED. THE DAMAGE WAS CAUSED FROM THE SAFETY WIRE CHAFING NEAR THE PIVOT BEARING. SAFETY WIRE IS FASTENED TO PIVOT BEARING STUD FROM THE T/R GEARBOX.Apr 11, 2000 · Bolkms BO105SSDR 20000503SH049Control Cable · twistedDURING PRE-FLIGHT INSPECTION OF PEDAL CONTROLS, AN ABNORMAL ''SNAPPING'' NOISE WAS HEARD COMING FROM THE MID-SECTION OF THE AIRCRAFT. FURTHER INSPECTION OF CONTROL RODS, SPLITTER ASSY, AND CONTROL CABLE ASSY WAS CONDUCTED. THE FWD CONTROL CABLE WAS FOUND TWIApr 10, 2000 · N604BP · Doug 600NSDR 20000505SH034Swashplate · bindingINTERMITTENT T/R PEDAL BINDING. (X)Mar 29, 2000 · N61447 · Hughes 269CSDR 20000511SH001Pitch Link · wornTAIL ROTOR PITCH CHANGE ROD REMOVED DUE TO WEAR ON SPHERICAL BEARING IAW AD 98-4-35. REMOVED 2 EACH. (X)Mar 20, 2000 · N964SA · Snias AS350B2SDR 20000515SH001Housing · undersizeCRACK DETECTED ON LOWER END OF BODY AT PLUGGED PORT HOLE. UNIT NOT ASSIGNED TO ANY AIRCRAFT, VENDOR SURPLUS/EXCHANGE UNIT. POSSIBLE CAUSE: PLUG BORE UNDERSIZED TOO MUCH. CRACK OCCURRING IN PLUGGED AREA. RECURRENCE PREVENTION RECOMMENDATION: WIDEN PLUG BOMar 1, 2000 · Snias AS350B2SDR HEEA066543Link · wornLINK HAS WORN BEARINGS.Feb 28, 2000 · N407PH · Bell 407SDR HEEA066542Link · wornLINK ASSEMBLY HAS WORN BEARINGS.Feb 28, 2000 · N723PH · Bell 407SDR HEEA066541Link · out of adjBEARING BAD ADJUSTMENT END.Feb 28, 2000 · N720PH · Bell 407SDR HEEA066523Link · wornLINK HAS WORN BEARINGS.Feb 16, 2000 · N724PH · Bell 407SDR HEEA066521Link · wornLINK HAS WORN BEARINGS.Feb 16, 2000 · N724PH · Bell 407SDR HEEA066514Link · wornLINK HAS WORN BEARINGS. SERIAL NUMBERS REMOVED ARE NHFS-4335 AND NHFS-4384. REPLACED WITH SERIAL NUMBERS NHFS-4806 (DMR NR 65602300) AND NHFS-4763 (DMR NR 65602301).Feb 15, 2000 · N408PH · Bell 407SDR AU000375Spacer · corroded(AUS) TAIL ROTOR PITCH CHANGE MECHANISM SPACER SEVERELY CORRODED. A PIECE OF THE SPACER HAD FLAKED OFF AND JAMMED THE SPLINE PLATE PN 222-012-725-001 ON THE OUTPUT SHAFT SPLINES.Feb 13, 2000 · Bell 222USDR AGQA065696Swashplate · wornTAIL ROTOR PITCH CONTROL'S INNER BUSHING WORN BEYOND LIMITS.Feb 7, 2000 · N8330P · Hughes 369ESDR HEEA065925Link · wornLINK HAD WORN BEARINGS.Feb 4, 2000 · N457PH · Bell 407SDR HEEA065924Link · wornLINK HAD WORN BEARINGS.Feb 4, 2000 · N402PH · Bell 407
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