JASC 6120

Service difficulty reports · 1,421

Reports filed under 6120 · Propeller Controlling 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 = '6120'
  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 COMA9610230Ballscrew Servo · defectiveAD-94-22-12. WHILE PERFORMING HAMILTON STANDARD SB 14RF-9-61-A53 REV. S, FOUND THE SPLINES OF THE BALLSCREW SERVO WERE WORN BEYOND LIMITS PRIMARILY ON THE RIGHT SIDE OF THE SPLINES. ACTION TAKEN: SENT PCU OUT TO HAMILTON STANDARD FOR FURTHER EVALUATION.Jun 12, 1996 · N164D · Emb EMB120RTSDR COMA9610178Spline · defectiveWHILE PERFORMING AD-94-22-12 HAMILTON STANDARD S/B 14RF9-61-A53 REV S. FOUND THE SPLINES OF THE BALLSCREW SERVO WORN BEYOND LIMITS PRIMARILY ON THE RIGHT SIDE OF THE SPLINES. SENT PCU OUT TO HAMILTON STANDARD FOR FURTHER EVALUATION.Jun 12, 1996 · N164D · Emb EMB120RTSDR SRAA69602Valve Hsg · bad bearingON CLIMB-OUT FROM AVB TO AAB - NR 1 ENGINE RPM FLUCTUATED FROM 105 PERCENT TO 95 PERCENT IN LESS THAN ONE SECOND, NO LOW OIL LIGHT AND MECHANICAL GOVERNING HAD NO EFFECT ON CONDITION, SHUT DOWN NR 1 ENGINE AS PRECAUTIONARY, AIRCRAFT LANDED SAFELY AT AAB. FOUNJun 8, 1996 · N918SJ · Lkheed 382GSDR GLBA96115Solenoid · wiring damagedORD - CREW REPORTED THE AIRCRAFT PULLS TO THE RIGHT DURING FLARE. MAINTENANCE REPAIRED DAMAGED WIRING AT THE RIGHT LOW PITCH SOLENOID. OPS CHECK WAS GOOD. (X)Jun 7, 1996 · N84GL · Beech 1900CSDR C2XA96IA141Prop Actuator · seizedIAH - FLT 3830 - DURING TAKEOFF ROLL, THE NR 2 ENGINE PRODUCED ONLY 22 PERCENT TORQUE. AIRCRAFT RETURNED, MX FOUND THE RIGHT PROPELLER ACTUATOR PITCH CHANGE MECHANISM SEIZED. THE RIGHT PROPELLER ACTUATOR WAS REMOVED AND REPLACED GROUND OPERATIONAL, LEAK CHECKJun 7, 1996 · N57734 · Emb EMB120RTSDR WWMA9600049Prop Pitch Contl · defectiveAFTER TAKEOFF THROUGH 6,000 FEET, THE POWER ROLLED BACK TO 96 PERCENT RPM, IT THEN DECREASED TO 95 PERCENT, EGT WAS AT 640 DEGREES AND AT TIMES 650 DEGREES. SPEED LEVER WAS AT HIGH AND THE CREW WAS ABLE TO CONTROL EGT BY PULLING BACK. POWER HAD NO EFFECT ON Jun 4, 1996 · N966AE · Bag JETSTM3201SDR AU960751Pin · faulty(AUS) NO2 ENGINE PROPELLER FEATHER CONTROLLER PLUG FAULTY DUE TO UNDERSIZE PIN AT G9811-P16May 28, 1996SDR RAIA960534Restrictor · dirtyCOU - FLT 7030 - NR 2 BETA LIGHT ILLUMINATED ON TAKEOFF. REMOVED CLEANED AND REINSTALLED BETA SWITCH RESTRICTOR. (M)May 27, 1996 · N339TE · Bag JETSTM3201SDR GLBA96096Beta Cable · out of adjustMSP - CREW REPORTED THE RT PROPELLER DROPPED TO LOW IDLE IN FLAIR. AFTER UNEVENTFUL LANDING, MAINTENANCE RIGGED RT PROPELLER BETA CABLES. OPS CHECK WAS GOOD. (X)May 20, 1996 · N89UE · Beech 1900CSDR COMA9610144Sig Cond Unit · malfunctionAUTO FEATHER SYSTEM WILL NOT TEST OR ARM. REPLACED THE RT ENGINE SIGNAL CONDITIONER UNIT.May 15, 1996 · N255CA · Emb EMB120RTSDR COMA9610145Prop Contl Unit · malfunctionLEFT PROPELLER TAKES 30 SECONDS TO TRANSITION FROM FEATHER TO BETA RANGE. REPLACED THE PROPELLER CONTROL UNIT.May 14, 1996 · N247CA · Emb EMB120RTSDR AU961201Motor · loose(AUS) RH ENGINE HYDROMECHANICAL UNIT (HMU) TORQUE MOTOR RETAINING BOLTS(3OFF) LOOSE AND RETURN FLOW `O' RING DAMAGED - SUSPECT INCORRECTLY TORQUED DURING LAST SHOP VISITMay 10, 1996 · Saab 340BSDR AU960602Link · broken(AUS) PROPELLER NO1 BLADE PITCH CHANGE LINK BROKEN - FURTHER INSPECTION FOUND INCORRECT BLADE RETENTION NUT 'O' RINGS FITTED - PROPELLER IS GREASE FILLED WITH OIL FILLED PROPELLER 'O' RINGS FITTED TO UNMODIFIED GROOVES - PERSONNEL/MAINTENANCE ERROR - UNAPPROVEMay 10, 1996 · Cessna T210LSDR CA960508005Valve Housing · malfunction(CAN)ON APPROACH, TORQUE ON #4 ENGINE COULD NOT BE REDUCED BELOW 5000 LBS. ON LANDING, PROP FAILED TO GO INTO BETA RANGE, ENGINE SHUTDOWN. #4 VALVE HOUSING REPLACED.May 3, 1996 · Lkheed 382GSDR AU960717Pipe · corroded(AUS) PROPELLER CONSTANT SPEED UNIT (CSU) RIGID PIPE, STEEL 'B' NUTS AND SLEEVE BADLY CORRODED/RUSTEDMay 3, 1996 · Parten P68BSDR AU960558Spring · faulty(AUS) PROPELLER GOVERNOR SPEEDER SPRING FAILEDMay 2, 1996 · Piper PA31350SDR ABXA9600485Linkage · not connectedRIGHT ENGINE HIGH STOP LIGHT ILLUMINATED IN FLIGHT AT APPROXIMATELY 5,000 FEET, 230 KNOTS AND 20 DEGREES CELSIUS. FOUND HIGH STOP LINKAGE UNDONE. RE-CONNECTED LINKAGE. GROUND OPS CHECKED GOOD.Apr 29, 1996 · N911AX · Nihon YS11A500SDR 96ZZZX2982Control Shaft · nut backed offDURING FLIGHT, CONTROL SHAFT NUT BACKED OUT CAUSING LOSS OF ENGINE OIL AND SUBSEQUENT ENGINE DESTRUCTION. IT HAS BEEN DETERMINED THE CONTROL SHAFT GASKET WAS NOT PROPERLY BENT TO PROVIDE A MEANS TO SAFETY THE CONTROL SHAFT NUT TO PREVENT IT FROM LOOSENING/BACApr 27, 1996 · N33047 · Piper PA28R200SDR CA960429007Prop Control · broken strands(CAN)THE PROPELLER CONTROL WOULD NOT GO ALL THE WAY TO FINE PITCH, DOWN 300 RPM AT FULL THROTTLE AND CONTROL FELT STIFF. REMOVAL AND DISASSEMBLY REVEALED A BROKEN STRAND WHICH, WHEN THE CONTROL WAS OPERATE D, EXPANDED IN THE CASING AND JAMMED.Apr 22, 1996 · Piper PA31SDR SRAA49604Valve Housing · defectiveFLT 1201 - DURING CRUISE, NR 4 PROPELLER RPM DECREASING BELOW 98 PERCENT, PRECAUTIONARY SHUT DOWN NR 4 ENGINE AND ACCOMPLISHED AIR TURN-BACK TO LIM. LANDED SAFELY. FOUND NR 4 PROPELLER VALVE HOUSING DEFECTIVE. REPLACED VALVE HOUSING PER MM, CHAPTER 61. OPSApr 19, 1996 · N905SJ · Lkheed 382GSDR PCAA9600281Prop Contl Unit · malfunctionedDURING TAKEOFF, CREW NOTICED RIGHT PROPELLER RPM WAS 1236. CREW ABORTED TAKEOFF WITHOUT INCIDENT. REMOVED AND REPLACED RIGHT PROPELLER CONTROL UNIT IAW DHC 8 MM. LEAK CHECK AND OPERATIONAL CHECK NORMAL. AIRCRAFT RETURNED TO SERVICE. (M)Apr 17, 1996 · N810EX · Dhav DHC8102SDR CA960524020Control Cable · frayed(CAN)ON DAILY INSPECTION OF ENGINE, #1 ENGINE PROP/CONDITION CABLE CHAFED AND FRAYED AT ENGINE FIRE WALL PULLEY. LOWER CABLE P/N 87600518-001 REPLACED.Apr 13, 1996 · Dhav DHC8301SDR BDHA960008Nts Wire · failedMSP - FLT 434 - THE CREW REPORTED THE RIGHT ENGINE NTS TEST WAS INOP. MX PERSONNEL REPAIRED WIRE AT LARGE FIREWALL PLUG. TEST WAS PERFORMED AND THE AIRCRAFT WAS RELEASED. (M)Apr 11, 1996 · N329BA · Swrngn SA226TCSDR GLBA96063Beta Collar · wornSPW - CREW REPORTED, THE RIGHT PROP WENT INTO GROUND FINE DURING FLAIR, MAINTENANCE REMOVED AND REPLACED RIGHT PROP AND ADJUSTED ENGINE RIGGING FOR TORQUE. OPS CHECKS WERE GOOD. (M)Apr 3, 1996 · N100UX · Beech 1900DSDR COMA9630087Weu · malfunctionedAUTO COURSEN FAULT LIGHT ILLUMINATED DURING GROUND OPS. REPLACED THE WARNING ELECTRONIC UNIT.Mar 27, 1996 · N356CA · Saab SF340ASDR 96ZZZX2546Beta Cable · out of adjustEYW/TPA - FLT 435A - PILOT REPORT: AFTER TAKEOFF (APPROXIMATELY 200 FEET), RIGHT PROPELLER RPM BEGAN DECREASING, RIGHT TORQUE INCREASED, RIGHT ENGINE WAS SHUT DOWN AND AIRCRAFT RETURNED TO EYW AND LANDED WITHOUT INCIDENT. MAINTENANCE: TROUBLESHOT SYSTEM, RIMar 26, 1996 · N187GA · Beech 1900CSDR AU960363Rod · faulty(AUS) PROPELLER PITCH CHANGE ROD SUSPECT FAULTY - DIMENSION FROM REAR PISTON SHOULDER TO FRONT RETAINER GROOVE AS ADVISED BY HARTZELLPROPELLERS IS 10.960INCHES (278.384MM) - MEASUREMENTS ON AFFECTED ROD WAS 10.85INCHES (275.59MM) RESULTING IN OVER COMPRESSIONMar 25, 1996 · Piper PA30SDR AU960642Control Cable · broken(AUS) LH ENGINE PROPELLER PITCH CONTROL CABLE BROKE AT THE FORWARD ENGINE CABLE MOUNT UNDER THE PROPELLER GOVERNORMar 14, 1996 · Piper PA31350SDR AU960289Csu · cracked(AUS) PROPELLER CSU END CAP CRACKED AND LEAKING - THE CRACK COMMENCED AT THE FULL FINE CONTROL STOPS AND RADIATED AROUND THE CENTRECOLLAR AND WAS HIDDEN BY THE CONTROL ARM RETURN SPRING - THE END CAP IS MANUFACTURED FROM A BRITTLE PLASTIC TYPE MATERIALMar 12, 1996 · Cessna 402CSDR 96ZZZX1511Clamp · incorrectCLAMP POSITION FOR REAR MOUNT PROP GOVERNOR EXTERNAL OIL LINE NOT POSITIONED PER AD 90-4-6.Mar 12, 1996 · N2247M · Piper PA28R201SDR 96ZZZX1541Ball Joint · separatedIN-FLIGHT, PROP WENT TO 2700 RPM FROM 2350 RPM. UNABLE TO DECREASE WITH PROP CONTROL. FOUND BALL JOINT SEPARATED FROM PROPELLER GOVERNOR. PROPELLER CONTROL WAS CHANGED LAST OCTOBER, 1995, USING SAME BALL JOINT AT THE LAST ANNUAL. THE BALL JOINT WAS VERY RUMar 7, 1996 · N6849P · Piper PA24250SDR PCAA9600272Cable Assy · shortedAUTO FEATHER ARMED ADVISORY LIGHT FLICKERED ON AND OFF DURING CLIMB-OUT. FURTHER TESTING ON GROUND REVEALED NR 2 PROP WOULD NOT FEATHER. TROUBLESHOT AND FOUND RIGHT ENGINE TSCU INTERFACE HARNESS AT FAULT. REMOVED AND REPLACED HARNESS. OPERATIONAL CHECKED GMar 5, 1996 · N820EX · Dhav DHC8102SDR 96ZZZM615Valve Housing · defectiveDURING FLIGHT AD08 NR 2 ENGINE RPM DECAYED TO 97 PERCENT, PRECAUTIONARY SHUTDOWN NR 2 ENGINE AND LANDED SAFELY AT AAB. FOUND NR 2 VALVE HOUSING MALFUNCTIONED, REPLACED VALVE HOUSING, PERFORMED ENGINE RUN, OPS CHECKED GOOD PER J/C 61013 AND 6103.Mar 5, 1996 · N923SJ · Lkheed 382ESDR COMA9630049Computer · failedAUTO COARSEN FAIL WARNING DURING TAKEOFF. REPLACED THE AUTO COARSEN COMPUTER.Mar 2, 1996 · N356CA · Saab SF340ASDR COMA9610092Autofeather Sw · failedAUTOFEATHER SYSTEM DID NOT ARM DURING TAKEOFF. REPLACED THE AUTOFEATHER ARM MICRO SWITCH IN THE POWER LEVER QUADRANT.Mar 2, 1996 · N263CA · Emb EMB120RTSDR AU960739Valve · sticking(AUS) PROPELLER CONTROL UNIT CHECK VALVE STICKINGFeb 28, 1996 · Frchld SA227DCSDR 96ZZZX1644Contl Linkage · out of adjustTLH/TLH - FLT 382 - PILOT REPORT: ON TEST FLIGHT, SHUT DOWN RIGHT ENGINE DUE TO LOW TORQUE. MAINTENANCE: ADJUSTED RIGHT PROPELLER RIGGING FOR CONTINUED SERVICE PRIMARY PROPELLER GOVERNOR, PN 8210212D, INSTALLED PRIOR TO TEST FLIGHT.Feb 24, 1996 · N17ZR · Beech 1900SDR COMA9610091Aural Warning · activatedAUTOFEATHER AURAL WARNING DURING TAKEOFF. COULD NOT DUPLICATE DISCREPANCY. CLEANED AND TIGHTENED WIRING CONNECTORS AT THE TORQUE SIGNAL CONDITIONERS.Feb 22, 1996 · N263CA · Emb EMB120RTSDR COMA9610067Pcu · defectiveLEFT PROPELLER TAKES 15 SECONDS TO UNFEATHER. REPLACED THE PITCH CONTROL UNIT.Feb 5, 1996 · N247CA · Emb EMB120RTSDR C2XA96CL012Prop Actuator · leakingGRR - FLIGHT NR 3378 - CREW REPORTED THAT AFTER TAKEOFF THEY HAD NO OIL PRESSURE IN THE LEFT ENGINE. MAINTENANCE INSPECTED AIRCRAFT AND REMOVED AND REPLACED THE LEFT ENGINE PROP ACTUATOR IAW HAMILTON STANDARD MM 61-13-04. OPERATIONAL AND LEAK CHECKS WERE GOOFeb 5, 1996 · N15721 · Emb EMB120RTSDR AU960190Governor · faulty(AUS) RH ENGINE PROPELLER GOVERNOR TRANSFER VALVE FAULTY - VALVE ALLOWED FEATHER PUMP PRESSURE TO PARTIALLY BYPASS PREVENTING UNFEATHERING OF PROPELLERFeb 2, 1996 · Gulstm G73SDR AU960122Control Cable · corroded(AUS) FORWARD ENGINE PROPELLER PITCH CONTROL CABLE CORRODED INTERNALLY AND STIFF TO OPERATE - CABLE WAS PURCHASED NEW ON 14/1195 AND HAS BEEN IN SERVICE FOR LESS THAN THREE MONTHS - SUSPECT CABLE WAS INSUFFICIENTLY LUBRICATED AT MANUFACTURE WHICH ALLOWED CORROFeb 2, 1996 · Cessna 337GSDR 96ZZZX885Control Cable · seizedINSTALL NEW CONTROL CABLE ASSY AS SUPPLIED BY CESSNA AIRCRAFT. INSTALLED AND RIGGED PER CESSNA R172K SM. ALL OPS CHECK OK ON GROUND. RUN-UP OPS CHECK OK. FLOWN FOR 2.0 HOURS, NO ATTEMPT TO MOVE CONTROL WHILE IN-FLIGHT. UPON RETURN TO GROUND, GOVERNOR CONTJan 31, 1996 · N7585X · Cessna R172KSDR 96ZZZX787Control Cable · brokenRIGHT PROPELLER CONTROL CABLE BROKE ABOUT 12 INCHES AFT OF GOVERNOR ATTACHMENT. NO PRIOR INDICATION OF CABLE FAILURE. PROPELLER CONTROL OPERATED SMOOTHLY.Jan 31, 1996 · N110SK · Piper PA31PSDR 96ZZZX1277Control Assy · seizedINSTALL NEW CONTROL CABLE ASSY AS SUPPLIED BY CESSNA AIRCRAFT. INSTALLED AND RIGGED PER CESSNA R172K SM AND UNDER THE SUPERVISION OF A CESSNA FIELD SERVICE ENGINEER. ALL OPS CHECK OK ON GROUND. RUN-UPS CHECK OK. FLOWN FOR 2.0 HRS, NO ATTEMPT MADE TO ADJUSTJan 31, 1996 · N7585X · Cessna R172KSDR COMA9630027Computer · failedAUTO-COARSEN SYSTEM FAILED DURING TAKEOFF. REPLACED THE AUTO-COARSEN COMPUTER. PART TOTAL CYCLES, 9,434.Jan 30, 1996 · N356CA · Saab SF340ASDR 96ZZZM322Beta Valve · out of adjustFLT NR 103 - MIA - ON CLIMB-OUT FROM TNT LEFT PROP SPEED INDICATOR STARTED DROPPING THEN SURGING. SHUT DOWN LEFT ENGINE AND DECLARED AN EMERGENCY INTO MIA. LANDED WITHOUT INCIDENT. ADJUSTED LEFT ENGINE BETA VALVE SETTING AND RERIGGED BOTH ENGINES FOR PROPERJan 29, 1996 · N17ZR · Beech 1900SDR COMA9610039Seal · defectiveRIGHT ENGINE NP FLUCTUATES. REPLACED PROPELLER TRANSFER TUBE SEALS.Jan 25, 1996 · N162CA · Emb EMB120RTSDR 96ZZZX1716Lever Cam · shearedPROPELLER CONTROL UNIT REMOVED PN 8088773 FROM SERVICE, HAD ITS CONDITION LEVER CAM SHEARED. PCU WAS AN EXCHANGE FROM SIMMONS WITH HAMILTON STANDARD ON AUGUST 14, 1994.Jan 25, 1996 · Aerosp ATR72212SDR GLBA96038Prop Governor · malfunctionedMIE - CREW REPORTED, THE LEFT PROP WENT TO GROUND IDLE IN FLIGHT. MAINTENANCE PERFORMED GROUND RUN BUT COULD NOT DUPLICATE PROBLEM DURING OPS CHECK. AIRCRAFT RETURNED TO SERVICE. (M)Jan 24, 1996 · N141UE · Beech 1900C
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