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.
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
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
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.SDR 95ZZZX5508Control Cable · defectiveEXCESSIVE DISCOLORATION AND CRACKING OF CABLE COATING AROUND T/R DRUM AREA. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.SDR 95ZZZX5903Rod · bentTAIL ROTOR CONTROL ACTUATING ROD BEARING END BENT ENOUGH TO CHAFE BELLCRANK FORK AT ATTACH POINT. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.SDR 95ZZZX6489Actuator · leakingPEDALS KICK IN APPROACH MODE. ACTUATOR LEAKING. LAST REPAIR WAS EXCESSIVE LEAKAGE ALSO (LESS THAN 3 MONTHS LATER).SDR HEEA955530Bearing · wornTAIL ROTOR CONTROL TUBE GUIDE IS WORN. REMOVED AND REPLACED WITH NEW GUIDE.SDR HEEA955448Actuator · stuckYAW CONTROL STUCK IN RIGHT POSITION.SDR 95ZZZX5084Pitch Link · bearing wornBEARING WORN. REMOVED AND REPLACED.SDR 95ZZZX5083Pitch Link · bearing wornBEARING WORN. REMOVED AND REPLACED.SDR HEEA955385Rod Bearing · wornBEARING WORN CAUSING HIGH FREQUENCY.SDR 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 ISDR HEEA955217Pitch Link · bearing wornPITCH LINK BEARINGS WORN.SDR HEEA955216Pitch Link · bearing wornPITCH LINK BEARINGS WORN.SDR 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.SDR HEEA955178Pitch Link Assy · bearings wornT/R P/C LINKS BEARINGS WORN. REPLACED WITH SERVICEABLE T/R P/C LINKS AND RETURNED AIRCRAFT TO SERVICE.SDR EGRA9594Pitch Link Assy · wornTAIL ROTOR PITCH LINK ROD ASSY'S FOUND WORN. REPLACED TAIL ROTOR PITCH LINK ROD ASSY'S.SDR HEEA955110Bearing Assy · leaksBEARING ASSY LEAKS. RECEIVED INSTALLED ON AIRCRAFT ON 12-26-94.SDR F6LM9599Rod Bearing · wornSPHERICAL BEARINGS HAVE PLAY REPLACED CONTROL RODSSDR 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)SDR 95ZZZX4230Pitch Link · bearing wornBEARING WORN BEYOND LIMITS ON PITCH LINK. REMOVED AND REPLACED.SDR 95ZZZX4229Pitch Link · bearing wornBEARING WORN BEYOND LIMITS ON PITCH LINK. REMOVED AND REPLACED.SDR 96ZZZX2795Seal · leakingOIL BELLOWS SEAL LEAKING BEYOND SERVICEABLE LIMITS. TURBINE SMOKING CAT-40356 TT 3606.6. TC 9835. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 95ZZZX2779Pc Link · corrodedDURING PMI INSPECTION (50-HOUR INSPECTION) FOUND T/R PC LINK CORRODED. LINK SCRAPPED DUE TO CORROSION AT BEARING HOLE.SDR 95ZZZY0976Control Cable · defectiveEXCESSIVE DISCOLORATION AND CRACKING OF CABLE COATING AROUND T/R DRUM AREA. REPLACED WITH NEW UNIT(S), CORRECTED PROBLEM.SDR 95ZZZY0975Control Cable · defectiveEXCESSIVE DISCOLORATION AND CRACKING OF CABLE COATING AROUND T/R DRUM AREA. REPLACED WITH NEW UNIT(S), CORRECTED PROBLEM.SDR HEED95173Link · failedPITCH LINK FAILED. ORDER NEWSDR HEED95172Retention Nut · failedREPLACE DUE TO T/R PITCH CHANGE LINK FAILURE. ORDER NEWSDR HEED95169Gearbox · link failureT/R PITCH LINK FAILURE. ORDER NEWSDR HEEA954873Actuator · leakingLEAKING AT CONTROL VALVE.SDR HEED9556Link · wornT/R LINK WORN ORDER NEWSDR HEED9535Tube Assy · chafedFOUND TUBE CHAFED AT AFT FRD ON 600 HOUR INSPECTION. ORDERED NEW PARTSDR HEED9527Horn Assembly · link failedPART OF T/R ASSY PITCH CHANGE LINK FAILED.SDR HEED9515Link · wornPARTS WORN BEYOND EXXON LIMITS. ORDERED NEW PART.SDR 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 RSDR 95ZZZX2167Spring · wornDURING ANNUAL INSPECTION OF CUSTOMER ACFT, THE T/R BUNGEE SPRING AND EYE BOLTS WERE WORN BEYOND LIMITS FROM CHAFING. PARTS REPLACED.SDR 95ZZZX2205Transducer · defectivePEDALS WOULD NOT RESPOND TO NORMAL INPUT. FOUND YAW CHANNEL CONTROL MOTION TRANSDUCER STICKING. CLEANED AND LUBED. FIGURE 67-15, ITEM 45.SDR RMXA9520592Bellcrank Assy · wornBELLCRANK ASSY WORN. REMOVED AND REPLACED.SDR RMXA9520591Bellcrank Assy · bearing wornTEFLON BEARING IS WORN. REMOVED AND REPLACED.SDR HEEA954632Pitch Link Assy · bearing wornWORN BEARINGS.SDR HEEA954577Actuator · leakingLEAKING LOWER SEAL AND PILOT VALVE AND EHA SEAL.SDR 95ZZZX3745Torque Tube · hole elongatedLOST MOTION NOTICED IN TAIL ROTOR CONTROLS. FOUND HOLE ELONGATED FOR FITTING (PN 369A7511) ATTACHMENT TO TORQUE TUBE. REPLACED TORQUE TUBE.SDR EGRA9512Actuator · leakingTAIL ROTOR ACTUATOR LEAKING. REPLACED WITH USED SERVICEABLE ACTUATOR.SDR 95ZZZX2558Bellcrank · worn bearingBEARING WORN, SMALL HOLE. REMOVED AND REPLACED.SDR HEEA954534Rod · worn bearingsWORN BEARINGS.SDR EGRA958Actuator · inoperativeSPAS ACTUATOR INOPERATIVE, SYSTEM WILL NOT TEST CORRECTLY. REPLACED SPAS ACTUATOR.SDR 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 CORROSISDR 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 CORROSISDR HEEA954477Actuator · defectiveTAIL ROTOR ACTUATOR WILL NOT MODE WITH HYDRAULIC POWER APPLIED.SDR EGRA952Bellcrank Assy · wornBEARINGS IN BELLCRANK WORN BEYOND LIMITS REPLACED BELLCRANK .SDR 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 WOULDSDR LOVA950204Tube Assy · damagedTUBE ASSY ROD END - CLEVIS END THREADS WERE DAMAGED. (X)
Back to JASC 6720