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 95ZZZX5052Boot · air boundWHEN APPLYING PRESSURE TO TAIL ROTOR PEDALS, IT BOUNCES BACK BY ITSELF (FEEDBACK). THE TAIL ROTOR GEARBOX PITCH CHANGE MECHANISM PROTECTIVE BOOT BECOMES AIR BOUND. RELIEVED AIR PRESSURE IN BOOT.Aug 28, 1995 · N123NH · Bell 206L4SDR 95ZZZX5508Control Cable · defectiveEXCESSIVE DISCOLORATION AND CRACKING OF CABLE COATING AROUND T/R DRUM AREA. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.Aug 24, 1995 · N67081 · Aerosp SA316BSDR 95ZZZX5903Rod · bentTAIL ROTOR CONTROL ACTUATING ROD BEARING END BENT ENOUGH TO CHAFE BELLCRANK FORK AT ATTACH POINT. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.Aug 23, 1995 · N96LG · Snias AS350B2SDR 95ZZZX6489Actuator · leakingPEDALS KICK IN APPROACH MODE. ACTUATOR LEAKING. LAST REPAIR WAS EXCESSIVE LEAKAGE ALSO (LESS THAN 3 MONTHS LATER).Aug 10, 1995 · N117LF · Bolkms BK117A1SDR HEEA955530Bearing · wornTAIL ROTOR CONTROL TUBE GUIDE IS WORN. REMOVED AND REPLACED WITH NEW GUIDE.Aug 3, 1995 · N60951 · Snias AS350B2SDR HEEA955448Actuator · stuckYAW CONTROL STUCK IN RIGHT POSITION.Jul 24, 1995 · N2148K · Bell 412SDR 95ZZZX5084Pitch Link · bearing wornBEARING WORN. REMOVED AND REPLACED.Jul 22, 1995 · N313LF · Bolkms BK117A4SDR 95ZZZX5083Pitch Link · bearing wornBEARING WORN. REMOVED AND REPLACED.Jul 22, 1995 · N313LF · Bolkms BK117A4SDR HEEA955385Rod Bearing · wornBEARING WORN CAUSING HIGH FREQUENCY.Jul 20, 1995 · N60951 · Snias AS350B2SDR HEEA955277Bearing · failedPILOT REPORTED LIMITED TRAVEL OF LEFT TAIL ROTOR PEDAL WITH LEFT PEDAL NOT REACHING THE NORMAL STOP POSITION. WITH REFERENCE TO BELL HELICOPTER 206L-1 IPC, FIGURE 64-1. FOUND 1 EACH ROLLER FROM BEARING ITEM #70 MISSING FROM BEARING CAGE. THE ROLLER WORKED IJun 27, 1995 · N2764F · Bell 206L1SDR HEEA955217Pitch Link · bearing wornPITCH LINK BEARINGS WORN.Jun 22, 1995 · N230UN · Bell 230SDR HEEA955216Pitch Link · bearing wornPITCH LINK BEARINGS WORN.Jun 22, 1995 · N230UN · Bell 230SDR 95ZZZX3746Sleeve · crackedSERVO SLEEVE MAGNETIC PARTICLE INSPECTION REVEALED STRESS CRACKS WHICH RADIATE OUT FROM THE 1.050 INCH DIAMETER TO THE 1.235 INCH DIAMETER WITH EDGEBREAK. FOUR SUCH DEFECTIVE PARTS FOUND ON FOUR SEPARATE ASSEMBLIES.Jun 14, 1995 · Skrsky S76SDR HEEA955178Pitch Link Assy · bearings wornT/R P/C LINKS BEARINGS WORN. REPLACED WITH SERVICEABLE T/R P/C LINKS AND RETURNED AIRCRAFT TO SERVICE.Jun 13, 1995 · N132AE · Bolkms BK117B2SDR EGRA9594Pitch Link Assy · wornTAIL ROTOR PITCH LINK ROD ASSY'S FOUND WORN. REPLACED TAIL ROTOR PITCH LINK ROD ASSY'S.Jun 8, 1995 · N7062J · Bolkms BK117B1SDR HEEA955110Bearing Assy · leaksBEARING ASSY LEAKS. RECEIVED INSTALLED ON AIRCRAFT ON 12-26-94.May 31, 1995 · N5748M · Bell 214STSDR F6LM9599Rod Bearing · wornSPHERICAL BEARINGS HAVE PLAY REPLACED CONTROL RODSMay 17, 1995 · N6095T · Snias AS350B2SDR LCFR950515Rod End · sheared barrelTAIL ROTOR PITCH LINK ASSEMBLY SEPARATED IN-FLIGHT. AIRCRAFT LANDED SAFELY. ROD END BARREL SHEARED. NO SIGNS OF CORROSION NOTED. SUSPECT EXCESSIVE ROD END BEARING WEAR PREVENTED BEARING ROTATION. (X)May 15, 1995 · N1082G · Bell 212SDR 95ZZZX4230Pitch Link · bearing wornBEARING WORN BEYOND LIMITS ON PITCH LINK. REMOVED AND REPLACED.May 15, 1995 · N950MB · Bolkms BK117A3SDR 95ZZZX4229Pitch Link · bearing wornBEARING WORN BEYOND LIMITS ON PITCH LINK. REMOVED AND REPLACED.May 15, 1995 · N950MB · Bolkms BK117A3SDR 96ZZZX2795Seal · leakingOIL BELLOWS SEAL LEAKING BEYOND SERVICEABLE LIMITS. TURBINE SMOKING CAT-40356 TT 3606.6. TC 9835. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 12, 1995 · N105NC · Bolkms BO105CBSSDR 95ZZZX2779Pc Link · corrodedDURING PMI INSPECTION (50-HOUR INSPECTION) FOUND T/R PC LINK CORRODED. LINK SCRAPPED DUE TO CORROSION AT BEARING HOLE.May 11, 1995 · N107AL · Bolkms BO105SSDR 95ZZZY0976Control Cable · defectiveEXCESSIVE DISCOLORATION AND CRACKING OF CABLE COATING AROUND T/R DRUM AREA. REPLACED WITH NEW UNIT(S), CORRECTED PROBLEM.May 10, 1995 · N67081 · Aerosp SA316BSDR 95ZZZY0975Control Cable · defectiveEXCESSIVE DISCOLORATION AND CRACKING OF CABLE COATING AROUND T/R DRUM AREA. REPLACED WITH NEW UNIT(S), CORRECTED PROBLEM.May 10, 1995 · N9362 · Aerosp SA316BSDR HEED95173Link · failedPITCH LINK FAILED. ORDER NEWApr 25, 1995 · N236X · Bell 230SDR HEED95172Retention Nut · failedREPLACE DUE TO T/R PITCH CHANGE LINK FAILURE. ORDER NEWApr 25, 1995 · N236X · Bell 230SDR HEED95169Gearbox · link failureT/R PITCH LINK FAILURE. ORDER NEWApr 25, 1995 · N236X · Bell 230SDR HEEA954873Actuator · leakingLEAKING AT CONTROL VALVE.Apr 25, 1995 · N911TL · Bolkms BK117B1SDR HEED9556Link · wornT/R LINK WORN ORDER NEWApr 21, 1995 · N236X · Bell 230SDR HEED9535Tube Assy · chafedFOUND TUBE CHAFED AT AFT FRD ON 600 HOUR INSPECTION. ORDERED NEW PARTApr 21, 1995 · N236X · Bell 230SDR HEED9527Horn Assembly · link failedPART OF T/R ASSY PITCH CHANGE LINK FAILED.Apr 21, 1995 · N236X · Bell 230SDR HEED9515Link · wornPARTS WORN BEYOND EXXON LIMITS. ORDERED NEW PART.Apr 20, 1995 · N236X · Bell 230SDR HEEA954791Tube Assembly · loose rivetsWHILE INSPECTING OVERHEAD SECTION IN BAGGAGE COMPARTMENT, FOUND BLACK MUD DRIPPING FROM ROOF. MUD WAS COMING FROM LONG TAIL ROTOR CONTROL TUBE END, FROM THREADED FITTING AND ATTACHING RIVETS. FITTING AND RIVETS WERE SLIDING IN TUBE APPROX.1/8". REMOVED AND RApr 18, 1995 · N724MB · Bolkms BO105SSDR 95ZZZX2167Spring · wornDURING ANNUAL INSPECTION OF CUSTOMER ACFT, THE T/R BUNGEE SPRING AND EYE BOLTS WERE WORN BEYOND LIMITS FROM CHAFING. PARTS REPLACED.Apr 11, 1995 · N5313Y · Hughes 369DSDR 95ZZZX2205Transducer · defectivePEDALS WOULD NOT RESPOND TO NORMAL INPUT. FOUND YAW CHANNEL CONTROL MOTION TRANSDUCER STICKING. CLEANED AND LUBED. FIGURE 67-15, ITEM 45.Mar 30, 1995 · N22608 · Bell 412SDR RMXA9520592Bellcrank Assy · wornBELLCRANK ASSY WORN. REMOVED AND REPLACED.Mar 26, 1995 · N213AE · Bolkms BK117B1SDR RMXA9520591Bellcrank Assy · bearing wornTEFLON BEARING IS WORN. REMOVED AND REPLACED.Mar 26, 1995 · N527MB · Bolkms BK117A3SDR HEEA954632Pitch Link Assy · bearing wornWORN BEARINGS.Mar 24, 1995 · N136AE · Bolkms BK117B2SDR HEEA954577Actuator · leakingLEAKING LOWER SEAL AND PILOT VALVE AND EHA SEAL.Mar 22, 1995 · N134AE · Bolkms BK117B2SDR 95ZZZX3745Torque Tube · hole elongatedLOST MOTION NOTICED IN TAIL ROTOR CONTROLS. FOUND HOLE ELONGATED FOR FITTING (PN 369A7511) ATTACHMENT TO TORQUE TUBE. REPLACED TORQUE TUBE.Mar 22, 1995 · N234RF · Hughes 369ESDR EGRA9512Actuator · leakingTAIL ROTOR ACTUATOR LEAKING. REPLACED WITH USED SERVICEABLE ACTUATOR.Mar 21, 1995 · N116MB · Bolkms BK117A3SDR 95ZZZX2558Bellcrank · worn bearingBEARING WORN, SMALL HOLE. REMOVED AND REPLACED.Mar 21, 1995 · N117M · Bolkms BK117A3SDR HEEA954534Rod · worn bearingsWORN BEARINGS.Mar 15, 1995 · N60951 · Snias AS350B2SDR EGRA958Actuator · inoperativeSPAS ACTUATOR INOPERATIVE, SYSTEM WILL NOT TEST CORRECTLY. REPLACED SPAS ACTUATOR.Mar 10, 1995 · N7062J · Bolkms BK117B1SDR 95ZZZX1498Support · corrodedWHILE REFURBISHING TWO BELL 206L AIRCRAFT, EACH WITH 20248.9 AND 21315,2 AIRCRAFT TT, IT WAS NOTED THAT THE T/R PEDAL SUPPORTS WERE CORRODED. THIS CORROSION WAS ALONG THE ENTIRE MATING SURFACE AND AROUND THE BOLT ATTACHMENT EARS OF EACH SUPPORT. SOME CORROSIMar 4, 1995 · Bell 206LSDR 95ZZZX1497Support · corrodedWHILE REFURBISHING TWO BELL 206L AIRCRAFT, EACH WITH 20248.9 AND 21315,2 AIRCRAFT TT, IT WAS NOTED THAT THE T/R PEDAL SUPPORTS WERE CORRODED. THIS CORROSION WAS ALONG THE ENTIRE MATING SURFACE AND AROUND THE BOLT ATTACHMENT EARS OF EACH SUPPORT. SOME CORROSIMar 4, 1995 · Bell 206LSDR HEEA954477Actuator · defectiveTAIL ROTOR ACTUATOR WILL NOT MODE WITH HYDRAULIC POWER APPLIED.Mar 2, 1995 · N8765J · Bolkms BK117A3SDR EGRA952Bellcrank Assy · wornBEARINGS IN BELLCRANK WORN BEYOND LIMITS REPLACED BELLCRANK .Feb 19, 1995 · N7062J · Bolkms BK117B1SDR 95ZZZX1130Pin Assy · defectiveWHILE DISENGAGING THE TAIL ROTOR LOCKOUTS, THE PINS WOULD NOT RELEASE FORM THE LINK ASSY (PN 206-001-701-001). SUBSTANTIAL FORCE WAS REQUIRED TO REMOVE THE EXPANDABLE PINS. THE MECHANIC NOTED THE EXPANDABLE RINGS USE TO SECURE THE PINS WITHIN THE LINKS WOULDFeb 8, 1995 · N123NH · Bell 206L4SDR LOVA950204Tube Assy · damagedTUBE ASSY ROD END - CLEVIS END THREADS WERE DAMAGED. (X)Feb 7, 1995 · N230LF · Bell 230
Back to JASC 6720