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 AU981640Bearing · seized(AUS) PILOT REPORTED NOISE ON ROTOR RUN DOWN AND ALSO HAD EXPERIENCED AN UNEXPLAINED YAW DURING LAST FLIGHT. INSPECTION OF THE TAIL ROTOR PITCH CONTROL FOUND THAT THE BALL BEARING WITHIN THE ASSEMBLY WAS AT THE POINT OF SEIZURE. BEARING WAS MANUFACTURED BY Dec 16, 1998 · Robsin R22BETASDR 98ZZZX4735Link · wornBEARING WORN. REMOVED AND REPLACED.Nov 30, 1998 · N206BX · Bell 206BSDR HEEA0016835Link · wornT/R PITCH CHANGE CONTROL ROD HAS WORN BEARINGS AND IS BINDING.Nov 24, 1998 · N467PH · Bell 407SDR HEEA0016834Link · wornWORN BEARINGS AND LINK. SERIAL NUMBERS REMOVED ARE NHFS-2820 AND NHFS-2163.Nov 24, 1998 · N407MM · Bell 407SDR AU981556Servo · failed(AUS) TAIL ROTOR SERVO, INTERNAL FAULT.Nov 24, 1998 · Aerosp SA365CSDR HEEA0016783Link · wornLINK BEARINGS WORN BEYOND LIMITS. SERIAL NUMBERS REMOVED ARE NHFS-3122 AND NHFS-3123.Nov 11, 1998 · N406PH · Bell 407SDR 99ZZZX849Blade · crackedBLADE ASSY CRACKED BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Nov 11, 1998 · N901CF · Doug MD900SDR HEEA0016732Actuator · leakingT/R ACTUATOR - LEAKING OUT SEALS.Nov 6, 1998 · N911TL · Bolkms BK117B1SDR 98ZZZX4802Pitch Link · wornON 11-2-98, A DAILY INSPECTION WAS PERFORMED. A PIECE OF TAPE THAT SEPARATES THE BALL BEARING FROM ITS OUTER RACE ON THE T/R P/C LINK HAD FLAKED OUT AND WAS REMOVED (.1250 INCH BY .0625 INCH). CHAPTER 65.20.00.601 PARA 4.2 OF THE AS350 MM WAS CHECKED. NO MENov 2, 1998 · N410TV · Snias AS350B2SDR HEEA0016632Rod · wornROD, PITCH CONTROL HAS WORN BEARINGS.Oct 31, 1998 · N40466 · Snias AS350B2SDR AU981417Tube · misinstalled(AUS) TAIL ROTOR PITCH CONTROL TUBE FITTED TO THE AIRCRAFT WAS A DIFFERENT PART NUMBER TO THE ONE IN THE MAINTENANCE DOCUMENTATION. PART TC: 13,461.Oct 30, 1998 · Bell 206BSDR HEEA0016586Actuator · failedACTUATOR STUCK IN FULL RIGHT HARD POSITION.Oct 28, 1998 · N5759N · Bell 412SDR HCMA0000228Rod · wornROD, PITCH CONTROL, WORN BEYOND LIMITS.Oct 28, 1998 · N196BH · Snias AS350B2SDR HEEA0016451Rod · wornROD, PITCH CONTROL HAS BEARINGS WORN.Oct 27, 1998 · N40466 · Snias AS350B2SDR HEEA0016208Link · wornLINK HAS WORN BEARINGS. SERIAL NUMBERS REMOVED ARE NHFS-2711 AND NHFS-2446. REPLACEMENT PART SERIAL NUMBERS ARE NHFS-3742 AND NHFS-3784.Oct 21, 1998 · N447PH · Bell 407SDR HEEA0016203Rod · loosePITCH CONTROL HAS PLAY IN BEARINGS. SERIAL NUMBERS REMOVED ARE S1894 AND S1952. REPLACEMENT PART SERIAL NUMBERS ARE S2250 AND S2217.Oct 21, 1998 · N6095S · Snias AS350B2SDR CA981125048Control Cable · misrouted(CAN) TAIL ROTOR CONTROL CABLE FOUND INSTALLED THROUGH THE WRONG HOLE OF THE AIRFRAME CAUSING BINDING OF THE TAIL ROTOR CONTROLS.Oct 21, 1998 · Snias AS350BASDR AU981366Liner · corroded(AUS) TAIL ROTOR PITCH CHANGE SHAFT LINER CORRODED CAUSING BINDING OF THE PITCH CHANGE SHAFT.Oct 15, 1998 · Skrsky S76ASDR AU981356Shaft · corroded(AUS) TAIL ROTOR PITCH CHANGE SHAFT BINDING ON LINER DUE TO CORROSION.Oct 15, 1998 · Skrsky S76ASDR HEEA0016097Rod · corrodedBEARINGS RUSTED OUT (BALL BEARINGS FALLING OUT)Oct 5, 1998 · N350BZ · Snias AS350B2SDR 99ZZZX1357Link · mismanufacturedWALL THICKNESS ON LARGE BEARING END HOUSING BELOW MINIMUM THICKNESS. MFG DEFECT. BAD FROM STOCK. REMOVED AND REPLACED.Sep 30, 1998SDR HEEA0016076Link · wornTAIL ROTOR LINK HAS WORN BEARINGS.Sep 25, 1998 · N405PH · Bell 407SDR HEEA0016075Link · wornTAIL ROTOR LINK HAS WORN BEARINGS.Sep 25, 1998 · N405PH · Bell 407SDR HEEA0016054Rod · wornWORN ROD END BEARINGS. SERIAL NUMBERS REMOVED ARE PMA33051 AND PMA1403.Sep 18, 1998 · N6100R · Snias AS350B2SDR HEEA0016015Rod · wornBEARINGS WORN ON PITCH CONTROL. SERIAL NUMBERS REMOVED ARE S2294 AND M210.Sep 9, 1998 · N6097Z · Snias AS350B2SDR HEEA0015974Link · wornWORN BEARINGS ON TAIL ROTOR LINK.Sep 4, 1998 · N510PH · Bell 407SDR HEEA0015973Link · wornWORN BEARINGS ON TAIL ROTOR LINK.Sep 4, 1998 · N510PH · Bell 407SDR HEEA0015971Link · wornWORN BEARINGS ON LINK.Sep 4, 1998 · N407PH · Bell 407SDR HEEA0015970Link · wornWORN BEARINGS ON LINK.Sep 4, 1998 · N407PH · Bell 407SDR 98ZZZX3870Control Cable · looseUPON LIFTING THE HELICOPTER INTO A HOVER, SUBMITTER NOTICED IT WAS IMPOSSIBLE TO CONTROL THE SWING OF THE TAIL EVEN WHILE HOLDING THE PEDALS STILL. DISASSEMBLED THE TAIL BOOM AND REMOVED THE TAIL ROTOR PUSH/PULL CABLE. FURTHER INSPECTION REVEALED .50 INCH OFSep 1, 1998 · N248F · Amtr MINI500SDR HEEA0015794Link · wornFOUND LINK BEARING WORN.Aug 26, 1998 · N612PH · Bell 407SDR HEEA0015716Rod · wornROD, PITCH CONTROL HAS WORN BEARINGS.Aug 19, 1998 · N350BZ · Snias AS350B2SDR HEEA0015715Rod · wornROD, PITCH CONTROL HAS WORN BEARINGS.Aug 19, 1998 · N60951 · Snias AS350B2SDR HEEA0015608Control Rod · failedCYCLIC DOES NOT MOVE AFT WHEN BEEPING AFT.Aug 14, 1998 · N3893L · Bell 412SDR HEEA0015540Bellcrank · chafedBELLCRANK CHAFED BEYOND LIMITS. SCRAPPED BELLCRANK AND REPLACED WITH SERVICEABLE PART.Aug 13, 1998 · N2758N · Bell 206L1SDR HEEA0015539Support · corrodedSUPPORT HAS CORROSION AND PITTED BEYOND LIMITS. REPLACED WITH SERVICEABLE SUPPORT.Aug 13, 1998 · N2758N · Bell 206L1SDR HEEA0015412Rod · wornWORN BEARINGS FOUND ON ROD, PITCH CONTROL.Jul 30, 1998 · N40466 · Snias AS350B2SDR HEEA0015227Bearing · wornWORN BEARINGS ON TAIL ROTOR LINK.Jul 22, 1998 · N57416 · Bell 407SDR HEEA0015226Bearing · wornWORN BEARINGS ON TAIL ROTOR LINK.Jul 22, 1998 · N437PH · Bell 407SDR HEEA0015216Link · wornTAIL ROTOR LINK WORN.Jul 22, 1998 · N402PH · Bell 407SDR HEEA0015200Bearing · wornSPHERICAL BEARING HAS WEAR IN IT.Jul 17, 1998 · N6097Z · Snias AS350B2SDR 98ZZZX3263Diverter Plate · wornFOUND BUSINGS FOR NOTAR CENTER BELLCRANK WORKING IN DIVERTER PLATE.Jul 15, 1998 · N903LF · Doug MD900SDR HEEA0015184Trunnion · wornTRUNNION WORN, ALSO SEAL P/N B56-40-2 LEAKING AND BOOT P/N 406-312-106-101 DETERIORATED DUE TO OIL SATURATION.Jul 13, 1998 · N447PH · Bell 407SDR HEEA0015172Rod · wornPITCH CONTROL ROD HAS WORN BEARINGS.Jul 13, 1998 · N40466 · Snias AS350B2SDR HEEA0015171Rod · wornPITCH CONTROL ROD BEARINGS WORN.Jul 13, 1998 · N4000L · Snias AS350B2SDR HEEA0015169Rod · wornPITCH CONTROL ROD HEAVILY WORN.Jul 13, 1998 · N6097Z · Snias AS350B2SDR HEEA0015168Rod · wornPITCH CONTROL ROD, WEAR IN BEARING.Jul 13, 1998 · N350BZ · Snias AS350B2SDR HEEA0015164Rod · wornPITCH CONTROL ROD WORN BEYOND LIMITS. SERIAL NUMBERS REMOVED ARE S1317 AND S11117.Jul 13, 1998 · N6095S · Snias AS350B2SDR HEEA0015079Bellcrank · wornBELLCRANK ASSY HAS WORN BEARING BORE HOLE.Jul 1, 1998 · N54191 · Bolkms BO105SSDR AU980770Control Rod · worn(AUS) TAIL ROTOR CONTROL ROD RUBBING ON `POP' RIVET TAIL. THE RIVET HAD BEEN INSTALLED SOME TIME IN THE PREVIOUS TWO YEARS TO SECURE A BRACKET UNDER THE TAIL BOOM FOR SECURING THE STATIC SYSTEM TUBE. PART TOTAL CYCLES: 161.Jun 30, 1998 · Hughes 269C
Back to JASC 6720