JASC 6730

Service difficulty reports · 647

Reports filed under 6730 · Rotorcraft Servo 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 = '6730'
  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 CA060313007Servo · leakingSERVO WAS FOUND LEAKING FROM TOP AND BOTTOM OF CYLINDER BARREL. SERVO WAS REMOVED AND REPLACED WITH A SERVICEABLE UNIT.Mar 10, 2006 · Robsin R44RAVENIISDR CA060313006Servo · leakingSERVO FOUND LEAKING FROM TOP AND BOTTOM OF CYLINDER BARREL. SERVO REMOVED AND REPLACED WITH A SERVICEABLE UNIT. THE ATTACHED PHOTOS SHOW THE SERVO AREAS THAT HAVE BEEN LEAKING. THE BULK OF THE OIL HAS BEEN CLEANED OFF THE SERVO, BUT IT CAN STILL BE SEEN WHEMar 10, 2006 · Robsin R44RAVENIISDR KBM2006F00073Servo · leakingLAT SERVO IS LEAKING BAD AT UPPER BODY WEEP HOLE. REMOVED AND REPLACED. (K)Feb 21, 2006 · N313LV · Snias AS350B2SDR CA060302011Seal · leakingUPPER PISTON SEAL LEAKING. NEW SEAL AND O-RING INSTALLED. NO FURTHER DEFECTS FOUND.Feb 20, 2006 · Robsin R44RAVENIISDR CA060302010Seal · leakingLOWER PISTON SEAL WAS FOUND LEAKING. SERVO WAS REPLACED WITH A SERVICEABLE UNIT.Feb 20, 2006 · Robsin R44RAVENIISDR KBM2006F00070Servo · leakingLT LATERAL SERVO IS LEAKING ON UPPER WEEP HOLE. REMOVED AND REPLACED. (K)Feb 17, 2006 · N250SH · Snias AS350B2SDR HEEA107994Connector · dirtyNR 2 SERVO JAM LIGHT ILLUMINATED. COMPLIED WITH EMERGENCY PROCEDURE. HEADED BACK. ON SHORT FINAL LIGHT CAME ON AGAIN. MAINTENANCE CLEANED PRESSURE TRANSMITTER AND SERVO CONNECTORS MS3476L10-6S AND MS3476L8-33S.Feb 9, 2006 · N792P · Skrsky S76ASDR CA060208007Servo · leaking(CAN) DURING AN INSPECTION HYDRAULIC LEAKS WAS FOUND AROUND THE FWD AND AFT SERVOS.THE RT FWD SERVO S/N 0251 AND THE AFT SERVO S/N 0667 WERE REMOVED AND NEWLY OVERHAULED ARE BEING INSTALLED. (TC NR 20060208007)Feb 7, 2006 · Robsin R44SDR CA060221007Servo · failed(CAN) ON GROUND RUN: WHEN HYDRAULIC TEST PUSH BUTTON DEPRESSED AND ACCUMULATORS EMPTY, THE CYCLIC WOULD MOVE HARD TO THE LEFT. SWITCHED LT SERVO AND RT SERVO. THIS PROBLEM MOVED WITH SERVO TO THE RT SIDE. INSTALLED A NEW OVERHAUL SERVO ON THE RT SIDE WHICH Feb 4, 2006 · Snias AS350BASDR HEEA107919Servo · malfunctionedON LANDING AND AFTER LANDING ON OFFSHORE HELIPORT DECK, WHEN PUTTING COLLECTIVE DOWN TO FLAT PITCH, COLLECTIVE WOULD NOT STAY DOWN; EVEN WITH COLLECTIVE TRIM RELEASED AND SWITCH OFF. AFTER ATTEMPTING A NUMBER OF TIMES TO GET COLLECTIVE TO STAY DOWN THE FORCEFeb 4, 2006 · N1545K · Skrsky S76ASDR CA060131004Tee Fitting · crackedWHILE IN CRUISE FLIGHT, THE PILOT FELT FEEDBACK SHOCK IN THE CYCLIC CONTROL. THE PILOT ISOLATED HYDRAULICS AND MADE AN UNSCHEDULED LANDING. MAINTENANCE CREW PERFORMED AN INSPECTION OF THE HYDRAULIC FLIGHT CONTROL SYSTEM. A TEE FITTING THE LEFT HAND SERVO ACJan 27, 2006 · Bell 206BSDR CA060123002Servo · leaking(CAN) SERVO REMOVED FROM SERVICE BECAUSE OF A HYDRAULIC FLUID LEAK. SERVO WAS INSTALLED AT THE FACTORY. (TC NR 20060123002)Jan 18, 2006 · Robsin R44RAVENIISDR CA060112002Servo · leakingHYDRAULIC LEAK FROM SERVO. SERVO REMOVED FOR REPAIR AND REPLACED WITH SERVICEABLE UNIT.Jan 11, 2006 · Robsin R44RAVENIISDR CA060109001Servo · leakingDURING DAILY INSPECTION, NOTICEABLE AMOUNT OF HYDRAULIC FLUID LEAKING FROM SERVO. GROUND RUN DETERMINED PILOT VALVE SOURCE OF LEAK. AFT SERVO REMOVED AND RETURNED TO ROBINSON HELICOPTERS FOR WARRANTY REPAIRS.Jan 3, 2006 · Robsin R44RAVENIISDR CA051220006Servo · inoperative(CAN) PILOT REPORTED STIFF RAPID LT MOVEMENT AND COLLECTIVE STICK RISING. AIRCRAFT TESTED ON HYDRAULIC BENCH AND WE FOUND THAT LT SERVO WAS SLOWER TO RETRACT. THE AIRCRAFT WAS OPERATING CORRECTLY AFTER AFFECTED SERVO WAS REPLACED. THIS PROBLEM WAS IMPOSSIBLEDec 6, 2005 · Snias AS350BASDR CA051205010Servo · contaminatedHYD SERVO WAS REMOVED FOR HYD LEAK. WHEN THE UPPER ROD-END WAS REMOVED, WATER WAS FOUND IN THE SHAFT OF THE SERVO. NO SIGNS OF CORROSION WERE NOTED. SERVOS IN THE R44 ARE MOUNTED VERTICALLY, AND UNLIKE OTHER HELICOPTERS WITH VERTICAL SERVOS, THE UPPER ROD EDec 1, 2005 · Robsin R44RAVENIISDR CA051205009Servo · leakingTWO SERVOS REMOVED. BOTH INSTALLED NEW AT THE FACTORY WITH THE SAME TIME ON THEM. BOTH SERVOS LEAKING HYDRAULIC FLUID FROM THE PILOT VALVE.Dec 1, 2005 · Robsin R44RAVENIISDR KBM2005F00327Servo · leakingUNIT LEAKING EXCESSIVELY HYDRAULIC FLUID ON WEEPLE HOLE. REMOVED AND REPLACED. (K)Oct 27, 2005 · N115SH · Snias AS350B2SDR CA051018005Servo · leakingSERVO WAS REMOVED FROM AIRCRAFT TO REPAIR A LEAK. THE PART WAS SHIPPED TO EUROCOPTER FOR REPAIR. EUROCOPTER HAS CONTACTED US SAYING THAT THE PISTON HAD BEEN PREVIOUSLY DRESSED FOR DAMAGE, AND WAS FOUND TO BE BENT APPROX 0.032Oct 17, 2005 · Snias AS350B3SDR CA050912002Bushing · cracked(CAN) AFTER DISASSEMBLY THIS ITEM WAS SENT FOR NDT AND WAS RETURNED WITH CRACK INDICATIONS.Aug 31, 2005 · Bell 206BSDR CA050919005Servo · leaking(CAN) HYDRAULIC LEAK WAS NOTED DURING MAINTENANCE. SERVO REPLACED, NO FURTHER DEFECTES NOTED.Aug 18, 2005 · Bell 206BSDR KBM2005F00169Servo · bindingSERVO/ LAT, UNIT BINDING. REMOVED AND REPLACED. (K)Jul 28, 2005 · N1188P · Snias AS350BASDR KBM2005F00131Bearing · excess playROD END BEARING. UNIT HAS EXCESSIVE PLAY. REMOVED AND REPLACED. (K)Jul 10, 2005 · N313LV · Snias AS350B2SDR HEEA107359Servo · malfunctionedAFTER CRUISE CHECK, THE NR 1 HYDRAULIC LIGHT CAME ON; FOLLOWED CHECKLIST AND WERE UNABLE TO CLEAR LIGHT. RETURNED TO MCY FOR MAINTENANCE. REPLACED TAIL ROTOR SERVO.Jul 8, 2005 · N776P · Skrsky S76ASDR ALG2005F00036Accumulator · malfunctionedAT HOVER FOR TAKEOFF, PICKED AIRCRAFT UP TO A HOVER 2 TIMES AND BOTH TIMES AT A STEADY HOVER, AIRCRAFT OSCILLATED FORE AND AFT WITH NO PILOT INPUT (NOSE UP AND DOWN). MAINTENANCE INSPECTED SERVO INPUTS FOR WEAR, NO DEFECTS FOUND, SERVICED SERVO CONTROL ACCUMUJun 30, 2005 · N524AL · Urocop EC120BSDR CA050615007Servo · seized(CAN) TROUBLESHOOTING THE DEFECT, FOR HELICOPTER COMPANY.Jun 14, 2005 · Snias AS350B2SDR CA050614005Housing · cracked(CAN) THIS UNIT WAS RECEIVED FROM THE USA FOR ROUTINE SERVICING/MAINTENACE. DURING DISASSEMBLY A CRACK WAS DISCOVERED BETWEEN THE LEE PLUG AND THE OPENING OF THE PISTON GUIDE.May 27, 2005 · Bolkms BO105CBSSDR CA050426001Actuator · faultyPILOT VALVE WOULD ONLY MOVE IN ONE DIRECTION. LIFTED UP (DUST CAP) BOOT TO LOOK AT PILOT VALVE ROD AND FOUND LOCKING MECHANISM LOOSE AND ABLE TO ROTATE. SERVO PISTON WOULD NOT MOVE IN ANY DIRECTION.Apr 25, 2005 · Bell 407SDR TXER104274Servo · leakingSERVO LEAKING.Apr 22, 2005 · N588SC · Urocop EC120BSDR KBM2005F00054Servo · leakingSERVO LEAKING. REMOVED AND REPLACED SERVO. (M)Apr 21, 2005 · N751SH · Snias AS350B2SDR CA050525001Seal · leaking(CAN) OIL LEAK REAR SEAL. OIL LEAK REPAIRED, RETURN TO SERVICE..Apr 1, 2005 · Bell 206BSDR CA050314005Servo · ratcheting(CAN) WHILE IN FLIGHT THE PILOT NOTICED A RATCHETY FORE AND AFT CYCLIC MOVEMENT WHILE MOVING THE CYCLIC FORE AND AFT. SERVO SENT TO MFG FOR EVALUATION.Mar 5, 2005 · Snias AS350B2SDR CA041209005Servo · malfunctioned(CAN) PILOT REPORTED THAT CYCLIC WAS STIFF WHEN MOVED TO LEFT AND IT WANTED TO MOVE RIGHT WHEN COLLECTIVE LOWERED (NO PROBLEMS WHEN COLLECTIVE WAS RAISED). LEFT MAIN SERVO WAS CHANGED AND DEFECT WAS CURED.Dec 8, 2004 · Snias AS350BSDR CA050207003Piston Rod · corrodedAPPARENT CORROSION PITS ON SURFACE OF PISTON ROD LEADING TO SMALL HYDRAULIC LEAKS, DESIGN HAS BEEN CHANGED TO REPLACE ARCOR FINISH OF PISTON ROD BY CHROME. NOTE THAT PART NUMBER OF ACTUATOR IS 109-0900-39-103 AND ORIGINAL MANUFACTURER OF ACTUATOR IS MECAER S.Dec 5, 2004 · Agusta A109ESDR CA041203007Line · leaking(CAN) FLUID LEAK AT UPPER HOUSING SPLIT LINE.Dec 3, 2004 · Snias AS350B2SDR TXER099765Servo · leakingCYCLIC SERVO LEAKING.Nov 6, 2004 · N120GB · Urocop EC120BSDR CA041110016Servo · malfunctionedWHEN HYDRAULIC POWER IS RE-ESTABLISHED AFTER DOING HYDRAULIC ACCUMULATOR PREFLIGHT CHECK, THE CYCLIC STICK WOULD GO HARD LEFT, BUT WAS ABLE TO BE OVERCOME AND WOULD ONLY LAST BRIEFLY. LEFT HAND SERVO WAS REPLACED FOR TROUBLESHOOTING AND PROBLEM WAS RECTIFIED.Oct 28, 2004 · Snias AS350BSDR CA041022005Servo · failed(CAN) PILOT WAS DOING HIS PREFLT HYD TESTS AND THEY FAILED. AFTER TROUBLESHOOTING HYDRAULIC SYSTEM FOUND THAT ONE LATERAL SERVO WAS THE CAUSE OF THIS MOVEMENT EVEN THOUGH DURING OUR TROUBLESHOOTING THE LATERAL SERVOS WERE SWAPPED OVER BUT THE PROBLEM STAYED GOct 4, 2004 · Snias AS350BASDR HCM2004F00002Servo · intermittentDURING STARTUP, THE PILOT NOTICED THAT THE CYCLIC CONTROL WAS STIFF IN THE FORE/AFT POSITION. HE ATTEMPTED TO ADJUST THE FRICTION AND FOUND IT RELEASED. THE CYCLIC CONTROL JUMPED FORWARD. AS HE PULLED BACK, HE FELT THE CONTROL APPEARED TO BE INTERMITTENT ANOct 1, 2004 · N11QM · Urocop EC130B4SDR KBM2004F00205Servo · restrictedRESISTANCE FELT WHEN APPLYING LT INPUT ON CYCLE. REMOVED DEFECTIVE SERVO AND INSTALLED UNIT, RESISTANCE IS NO LONGER FELT.Aug 5, 2004 · N350SH · Snias AS350BASDR TXER096384Servo · bindingTAIL ROTOR SERVO IS BINDING.Jul 13, 2004 · N151TA · Aerosp AS355*SDR CA040806002Servo · failedDURING HYD TESTS PRIOR TO FLTS IAW CF-2003-15R1, CYCLIC CONTROL FOUND COMPROMISED. AT 100 PERCENT NR, 'HYD TEST' SELECTED, CYCLIC TESTED FOR PROPER CNTRL MOVEMENTS ON ACCUMULATOR PRESS PRIOR TO HYD ASSIST DEPLETION. LATERAL ACCUMULATORS DEPLETED AFTER APPROX Jul 3, 2004 · Snias AS350BASDR CA040712005Servo Valve · cracked(CAN) DURING A ROUTINE INSPECTION A MARK WAS DISCOVERED ON THE ATTACHMENT HEAD OF THE SLIDER OF THE SERVO VALVE. THE SLIDER INSPECTED WITH LIQUID PENETRANT WHICH INDICATED THAT THE SLIDER WAS CRACKED.Jun 25, 2004 · Bolkms BK117A1SDR CA040728004Servo · malfunctionedPILOT REPORTED THAT THE CYCLIC WAS STIFF IN LT QUADRANT. REPLACED THE LEFT HAND SERVO FIRST. THIS DID NOT SOLVE PROBLEM. REINSTALLED LEFT SERVO AND REPLACED RIGHT HAND SERVO. THE DEFECT WAS CORRECTED.May 28, 2004 · Snias AS350B2SDR CA040805006Accumulator · unserviceable(CAN) CYCLIC OSCILLATION WHEN ACCUMULATORS BLED DOWN.May 10, 2004 · Snias AS350B2SDR BAQA094575Actuator · unserviceableEXCESSIVE PLAY IN BEARING ON CONTROL ROD. REPLACED WITH SERVICABLE UNIT. 05/19/2004May 6, 2004 · N511ME · Urocop EC135T1SDR KBM2004F00085Rod End · wornFORE/AFT SERVO LOWER ROD END HAS EXCESSIVE PLAY. REMOVED AND REPLACED.May 3, 2004 · N884SH · Snias AS350B2SDR KBM2004F00031Bearing · wornLOWER ROD END BEARING ON RT SERVO WORN. REMOVED AND REPLACED.Mar 30, 2004 · N1188P · Snias AS350B2SDR CA040315012Servo Valve · unserviceable(CAN) PILOT REPORTED THAT WHEN HE TRIED TO PULL THE COLLECTIVE UP, IT FELT VERY HEAVY. IT WAS NOTED DURING TROUBLESHOOTING THAT THE SPOOL VALVE WAS VERY DIFFICULT TO MOVE AND THEN IT WOULD ONLY MOVE A SMALL AMOUNT. A SERVICEABLE SERVO WAS INSTALLED AND CONMar 14, 2004 · Snias AS350B2SDR KBM2004F00108Servo · leakingSERVO UNIT IS LEAKING. REMOVED AND REPLACED.Mar 10, 2004 · N751H · Snias AS350B2
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