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.
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
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 QXEA2014020500102Propeller · malfunctionedON FINAL APPROACH AT 125 KTS IAS, LT PROPELLER RPM DECREASED FROM 1020 RPM TO 980 RPM. INTERROGATED CDS. NO FAULTS FOUND. COMPLIED WITH ENGINE TREND DOWNLOAD MAINTENANCE 6773101. VERIFIED MEASURED BETA CALIBRATION MEASURMENT TO BE WITHIN LIMITS. REMOVED SDR SWIA201436218Pcu · malfunctionedDURING INITIAL CLIMB RT PROP BEGAN FLUCTUATING +/- 5%. AFTER SETTING REDUCED, NP FLUCTUATION CONTINUED +/- 5%. WHILE RETURNING TO FIELD, FLUCTUATION STOPPED. FLT 7391 REPLACED RT PROP PCU IAW AMM, PN 782490-46, SN ON 950440 & SN OFF 960438.SDR CA140208001Pcu · failed(CAN) TAKEOFF REJECTED AT APPROXIMATELY 65 KNOTS. NR 2 ENGINE PRECAUTION AND POWERPLANT MESSAGE ILLUMINATED. RUNWAY CLEARED AND RETURNED TO GATE. MAINTENANCE ADVISED, FAULT CODE 224 REPORTED. NR 2 PROP CONTROL UNIT (PCU) REPLACED.SDR KTEG2014FA0000051Arm · lack of lubeBETA BLOCK ASSY, PART OF BETA ARM ASSY, WAS NOT LUBRICATED AT INSTALLATION. LACK OF LUBRICATION CAN CAUSE THE ARM ASSY TO FREEZE UP IN THE BETA ARM. IF IT CAN NOT ROTATE, IT WILL WEAR INTO THE BETA RING CAUSING EXCESSIVE WEAR. THIS THE THE 3RD ACFT THIS WASSDR HNAA2014012000017Beta Lockout · failedAT 3,000 FT, BETA LOCKOUT FAILURE ON NR 1 ENGINE. COMPLIED WITH NON EMERGENCY CHECK LIST AND CONTINUED FLIGHT. AT 1500 FT, NR 1 ENGINE TORQUE INCREASED TO 110 PERCENT, RETARD PROP TO 900 WITH NO EFFECT. TORQUE THEN FLUCTUATED BETWEEN 25 AND 125 PERCENT. NOSDR CA140221021Control Unit · failed(CAN) NR 2 ENGINE NO NORMAL SPOOL-UP, FOLLOWED BY NR 2 PEC AND POWER PLANT MESSAGE, RTO AND UNEVENTFUL TAXI BACK TO RAMP. ACFT RETURNED TO REVENUE SERVICE AFTER PITCH CONTROL UNIT, PCU, NR 2 REPLACEMENT.SDR CA140224002Pcu · failed(CAN) TAKEOFF WAS ABORTED DUE TO FAULT CODE ALARM FROM THE PROPELLER ELECTRONIC CONTROLLER. DURING THE ON GROUND TROUBLESHOOTING, THE PROPELLER VALVE MODULE, THE OVERSPEED GOVERNER AND THE OIL PUMP WERE REPLACED AND THE ALL FAULTS DISAPPEARED. THE ACFT RETURSDR CA140218006Pcu · failed(CAN) AT TAKEOFF POWER SELECTED, AUTOFEATHER FAILED TO ARM. RUNWAY VACATED AND ANOTHER TAKEOFF ATTEMPTED. AUTOFEATHER FAILED TO ARM, AGAIN. RETURN TO GATE. MAINTENENCE REPLACED THE PROP CONTROL UNIT. ACFT RETURNED TO SERVICE.SDR CA131227002Controller · failed(CAN) AFTER TAKEOFF, CLIMBING TO FL 240, THE LT PROPELLER ELECTRONIC CONTROL SHOWED A FAULT AND WAS FOLLOWED BY A NP DROP TO 73 PERCENT. AFTER A FEW MINUTES OR SO THE ITT RAISED PROGRESSIVELY TO 770C AND NR 8304. THEN THE MASTER WARNING CAME AND RAPID THE TOSDR CA131218018Control Unit · malfunctioned(CAN) DURING PRE-FLIGHT AUTOFEATHER/UPTRIM TEST, FLIGHT CREW REPORTED 154 PERCENT OF TORQUE ON THE NR 1 ENGINE. DECISION WAS TAKEN TO FEATHER THE PROPELLER AND RETURN TO GATE BUT LATER ATTEMPTS TO FEATHER THE PROPELLER CAUSED RAPID INCREASE OF TORQUE. FLIGHSDR QXEA2013112701520Governor · unknownNR 1 PROPELLER SURGED ON APPROACH AFTER NP 1020, NORMAL, SELECTED. PROPELLER WOULD PULSE BETWEEN APPROXIMATELY 960 TO 1020 RPM. AS PRECAUTION, R & R NR 1 OVERSPEED GOVERNOR IAW AMM TASKS 61-20-26-000-801/ 61-20-26-400-801. OPS CHECKED GOOD. RAN BOTH ENGINESDR CA131202006Solenoid · out of adjust(CAN) DURING TAKEOFF ROLL, THE LT ENGINE TORQUE WENT TO 4200 FT-LBS THE PROPELLER RPM DROPPED TO 1000. THE ISSUE COULD NOT BE DUPLICATED DURING ENGINE GROUND RUNS. DURING THE LOW PITCH TEST, THE LT ENGINE RPM DROPPED SIGNIFICANTLY TO 450, WHEREAS THE RT ENGINSDR CA131121011Beta Ring · worn(CAN) WHILE INVESTIGATING A REPORT OF THE PROPELLER GROUND IDLE BEING POSSIBLY OUT OF ADJUSTMENT. THE PROPELLER BETA BLOCK WAS NOTED TO HAVE WORN UNEVEN WHICH RESULTED IN THE METAL RETAINER OF THE CARBON BLOCK TO MAKE CONTACT ONTO THE METAL PROPELLER BETA RINSDR CA140209002Pcu · failed(CAN) DURING CLIMB PROP RPM INCREASED TO 1060 FOLLOWED BY THE NR 1 PEC CAUTION AND POWERPLANT MESSAGE. PROP WAS FEATHERED AND ENGINE SHUTDOWN. ACFT RETURNED TO FIELD AND AN UNEVENTFUL LANDING PERFORMED. MAINTENANCE REPLACED THE NR 1. PROP CONTROL UNIT (PCUSDR QXEA2013100701428Control Unit · malfunctionedUNABLE TO UNFEATHER NR 1 PROPELLER WHILE USING THE FEATHER PUMP. REPLACED THE PITCH CONTROL UNIT IAW AMM TASK 61-20-11-400-801. OPS AND LEAK CHECKS GOOD. RETURNED TO SERVICE.SDR SWIA201334864Pcu · failedON APPROACH MAX NP WENT TO 114% ON LT ENGINE. NP WAS 114% TO 95% ALL THE WAY DOWN THE APPROACH. ON LANDING, LT ENGINE NP WENT TO 21% & STAYED THAT WAY TO THE GATE. NO CONTROL ISSUES. RAN QRH. AT NO TIME DID IT FEEL LIKE THE PROP FEATHERED. AT NO TIME DID SDR CA131001002Controller · failed(CAN) THE AUTOFEATHER FAILED TO ARM ON THE TAKEOFF. THE TAKEOFF WAS ABORTED AT LOW SPEED. THE ACFT WAS TAXIED BACK TO THE RUNWAY HOLDING POINT WHERE THE AUTOFEATHER WAS RESET. ANOTHER ATTEMPT WAS MADE TO TAKEOFF BUT AGAIN WITH A FAILURE OF THE AUTOFEATHER TOSDR CA130918006Controller · malfunctioned(CAN) IFSD DUE TO PROPELLER OVERSPEED. ACFT REQUESTED EMERGENCY PRIORITY LANDING. EMU DOWNLOAD COMPLETED AND DATA SENT FOR REVIEW. PROPELLER OVERSPEED PEAK VALUE OF 1075 RPM. ENGINE NR 2 CDS FAULT CODES: CH1-236 AND 270 CH1-260 AND 270 REPLY FROM MFG REGARDINSDR CA130826013Propeller · malfunctioned(CAN) ON 24-AUG-2013, DURING THE ENROUTE CLIMB PORTION OF THE FLIGHT, THE NR 1 PROPELLER WENT INTO AN OVERSPEED CONDITION. THE CREW CONDUCTED THE QRH MEMORY AND CHECKLIST DRILLS IAW THE PORTER SOP, INCLUDING AN IN-FLIGHT SHUTDOWN OF THE AFFECTED ENGINE. THE SSDR HNAA2013081200458Switch · inoperativeAT 300 FEET, BETA LOCKOUT CYCLED NR 2 PROPELLER. RETURNED TO FIELD. ACTIVATED BETA LOCKOUT SYS. BOTH BETA LOCKOUT SWITCHES MOVED TO ENABLE. R & R SWITCH 6141-S4. GROUND RAN, OPS CHECKED GOOD. NO DEFECTS NOTED AT THIS TIME.SDR CA130813004Controller · malfunctioned(CAN) NR 4 ENGINE RPM DECAYED TO BOTTOM OF NORMAL RANGE AT HIGH POWER DURING TAKEOFF, BOMBING BUT WAS NORMAL IN CLIMB AND CRUISE. AFTER TROUBLESHOOTING THE ROTARY ACTUATOR WAS REPLACED AND PROBLEM WAS FIXED.SDR CA130819007Controller · malfunctioned(CAN) DURING TAKEOFF, RIGHT ENGINE EXPERIENCED TQ ROLL BACK UNDER 5 PERCENT. CAPTAIN CORRECTED FOR POWER LOSS AND CO-PILOT CONFIRMED RT TQ READING BELOW 5 PERCENT. RT ENGINE STARTED TO FEATHER THEN RETURNED TO NORMAL. CAPTAIN TRIED TO VERIFY GAUGE READING, ASSDR CA130819004Controller · malfunctioned(CAN) DURING CRUISE, THE ENGINE NR 2 LOSS OF TORQUE AND NP, TORQUE BELOW 20 PERCENT AND NP AT 7 PERCENT, THEN AUTOMATIC RELIGHT WITHIN 30 SECONDS. TROUBLESHOOTING LED TO THE REPLACEMENT OF THE AUTOFEATHER UNIT, WHICH WILL BE SENT FOR INVESTIGATION.SDR CA130729021Regulator · malfunctioned(CAN) PROPELLER FAILED TO GOVERN RPM IN FLIGHT. UPON ADVANCEMENT OF POWER FOR ASSOCIATED ENGINE FCU HAD TO LIMIT ENGINE RPM VIA FUEL TOPPING GOVERNOR. MAINTENANCE CREW REPLACED GOVERNOR VALVE OF PROPELLER AND COMPLETED A PITCH LOCK CHECK AND DETERMINED PROPESDR CA130830003Controller · failed(CAN) LOW SPEED RTO AND RTS DUE AUTOFEATHER SYS FAILURE NR 1 ENGINE. ABORTED T/O DUE A/F FAILING TO ARM. FAULT CODE 494 & 204 PRESENT. FIM TASKS BEING CARRIED OUT. PEC REPLACED. TEST CARRIED OUT AND PASSED.SDR CA130717005Tscu · failed(CAN) AT 600 FT ASL AFTER TAKE OFF, NR 2 TORQUE ROLLED BACK TO 30 - 40% THEN FUEL FLOW HAD FLUCTUATIONS AND THE PROP WENT TO FEATHER WITH AUTO FEATHER AND UPTRIM ON. NR 2 ENGINE WAS THEN SHUT DOWN AND AIRCRAFT RETURNED TO CYVR WITH NO OTHER INCIDENTS. ENGINE WSDR QXEA2013071001166Governor · malfunctionedNR 2 PROPELLER DID NOT COME OUT OF FEATHER FOR 4.5 MINUTES. R & R NR 2 PROPELLER OVERSPEED GOVERNOR IAW AMM TASKS 61-20-26-000-801 & 61-20-26-400-801. OPS & LEAK CHECKED GOOD. RETURNED TO SERVICE.SDR QXEA2013070701164Governor · malfunctionedNR 1 AC GENERATOR CAUTION AND NR 1 PROPELLER SLOW TO COME OUT OF FEATHER. NO EPCU FAULTS. NO CDS FAULTS. REPLACED NR 1 OSG REF AMM 61-20-26-00/400-801. OPS CHECKED GOOD, NO LEAKS NOTED. FUNCTIONAL TEST OF NR 1 PROPELLER TIME TO UNFEATHER IS GOOD. REF ASDR CA130528003Actuator · cracked(CAN) OIL LEAK FOUND ON RIGHT PROPELLER BETWEEN HUB AND ACTUATOR, WHEN REMOVING THE PROPELLER ACTUATOR ASSY TO REPLACE THE PACKING VISUAL INSPECTION WHAS CONDUCTED ON THE ACTUATOR ASSY AND A CRACK WHAS SUSPECTED, CRACK COMFIRMED BY NDT METHOD. (TC# 20130528003SDR CA130603006Control System · malfunctioned(CAN) THE LEFT PROPELLER RPM DECAYED UNCOMMANDED TO FEATHER AT 1000` AGL. THE FAILURE OCCURRED AS THE POST TAKE OFF POWER REDUCTION WAS PERFORMED. THE CREW WAS UNABLE TO RECOVER THE PROPELLER TO NORMAL RPM AND, THEREFORE, THE PILOT SHUT DOWN AND SECURED THE LHSDR CA130527011Spring · weak(CAN) PROPELLER RPM DECAYED TO UNCOMMANDED FEATHER AT 1000` AGL AFTER TAKE OFF. PROPELLER FAILURE OCCURRED AFTER THE POST TAKE OFF POWER REDUCTION. UNABLE TO RECOVER PROPELLER TO NORMAL RPM. PRIOR TO THE FAILURE, THE PROPELLER GOVERNOR HAD BEEN REINSTALLED AFSDR CA130530004Control Unit · malfunctioned(CAN) DURING T/O, THE LT ENGINE AUTOFEATHERED, UNCOMMANDED AUTOFEATHER. THE T/O WAS REJECTED AND THE AC RETURNED TO THE RAMP. TROUBLESHOOTING LED TO THE REPLACEMENT OF BOTH AUTO FEATHER UNITS, THE LT ENGINE TORQUE SENSOR, ELECTRONIC ENGINE CONTROL AND HIGH PSDR CA130508001Governor · leaking(CAN) AFTER A SOAP, AN OIL LEAK ON THE RT ENGINE HAS BEEN DETECTED. AFTER INVESTIGATION THE OIL LEAK WAS NOT COMING FROM THE OIL FILTER, BUT CAP OF THE PROPELLER GOVERNOR.SDR CA130503005Beta Ring · cracked(CAN) DURING INSTALL OF HOT SECTION INSPECTION, AME NOTICED THAT THE PROP BETA RING HAD A CRACK ON THE AFT FACE, ON FURTHER INSPECTION ANOTHER CRACK WAS FOUND. BETA RING WAS REMOVED AND A SERVICEABLE RING INSTALLED. AT THIS TIME IT WAS NOTED THAT THE INSTALL PSDR 2013FA0000241Control System · bindingREPLACED THE PROP CONTROL SEVERAL TIMES DUE TO RATCHETY OPERATION. THE VERNIER MECHANISM DOES NOT SEEM TO RELEASE COMPLETELY MAKING IT HARD TO ADJUST PROP RPM SMOOTHLY. WE HAVE BEEN THROUGH 3 PROP CONTROLS IN RECENT MONTHS DUE TO THIS FAULT.SDR CA130429008Transducer · faulted(CAN) AFTER ADVANCING THE POWER LEVERS ON THE R/W THE NR 1 PEC CAUTION ILLUMINATED AND THE POWERPLANT MESSAGE ILLUMINATED. THE T/O WAS REJECTED. THE ACFT WAS RETURNED TO STAND. TASK 61& 8722,20 & 8722,06 & 8722,810 & 8722,818 -FAULT CODE 260. SERVO CURRENT SDR 39LA2013021800003Probe · unserviceableON TAXI, PROPELLERS WERE MAKING A MODULATION SOUND. PILOT CHECKED THE PROPELLER RPM GAUGES AND FOUND THAT THE RT PROPELLER WAS IN AN OVERSPEED CONDITION. TAKEOFF WAS ABORTED. R & R NR 2 N/P PROBE IAW MM 72-00-00, PERFORMED MAX POWER (PROP = 1202RPM) AND PROSDR CA130311016Electrical Box · failed(CAN) RTO DUE AUTOFEATHER FAILED TO ARM. PEC WHICH WAS INSTALLED HAS HISTORY OF A/F FAIL TO ARM SUSPECT BAD PEC FROM STOCK. NR 1 PEC REPLACED. ACFT RETURNED TO SERVICE.SDR HNAA2013012500019Lever · out of adjustWITH BOTH CONDITION LEVERS SELECTED TO MAX ON LANDING WITH TORQUE SELECTED BETWEEN 20 TO 40 PERCENT MAX. NP WAS 1150 TO 1165. ENGINES RIGGED IAW WC 76-00-01. GROUND RAN ACFT TO MAX PROP AND WAS FOUND TO BE WITHIN LIMITS IAW SRT MANUAL.SDR LR7A2012121900428Housing · failedDURING DESCENT, NR 1 ENGINE FLAMED OUT, THEN RELIT, FOLLOWED BY 105 PERCENT RPM SHUTDOWN IAW QRH PROCEEDURES. R & R VALVE HOUSING ASSY IAW HN61135 LP 38080.SDR R61A201212120745Controller · faultyCREW REPORTED AUTOFEATHER WILL NOT ARM. MAINTENANCE TROUBLESHOT IAW BOMBA AMM TO PEC AND REMOVED AND REPLACED PEC.SDR CA121207003Plate · damaged(CAN) SL1156 PROVIDES A NEW PN PROP CONTROL DETENT PLATE TO REPLACE THE OLD PLATE. UPON INSTALLATION, ENGINEERS NOTED THAT WHILE THE MATERIAL MAY HAVE BEEN CHANGED, NOTHING ELSE HAS. THE ATTACHED PICTURE SHOWS THAT NO MATTER WHERE THE PLATE IS ADJUSTED, 1 PROSDR CA121203013Control Cable · binding(CAN) RIGHT PROP CONTROL STIFF TO OPERATE.SDR HYIA20121203001Control Cable · separatedPILOT REPORTED THAT DURING THE CLIMB, THE LT PROPELLER RPM RATE BECAME UNCONTROLLABLE. THE PILOT ELECTED TO RETURN TO THE DEPARTURE AIRPORT AND LANDED SAFELY. UPON MX INSPECTION, THE C/A WAS TO RESECURE THE LT PROP CONTROL CABLE TO THE LT PROP GOVERNOR.SDR CA121203011Controller · binding(CAN) LEFT PROP CONTROL STIFF TO OPERATE.SDR JJBA20121031009Control Unit · malfunctionedCREW REPORTED THAT THE NR 2 ENGINE WAS SURGING 15 - 20 PERCENT TORQUE IN FLIGHT WITH THE PROPS AT 1050. DECLARED AN EMERGENCY AND RETURNED TO THE FIELD. MX TRACED THE ISSUE A THE PROP CONTROL UNIT. UPON REPLACEMENT OF THE PCU AN OPERATIONAL CHECK PRODUCEDSDR QXEA2012102601349Computer · malfunctionedAUTOFEATHER SHOWS FAIL NR 1 ENGINE AND ABORT NR 2 ENGINE DURING SYS TEST. CONFIRMED AUTOFEATHER TEST FAILED. INTEREGATED CDS FOR PROP FAULT CODES-FOUND P-PLANT FAULTS ON NR 2 PROP: CH A-402, 494, AND CH B-294, 400, 402, 408, 494. C/W FIM TASK 61-20-09-810-81SDR V0DR2012002Knob · crackedPITCH CHANGE KNOB WAS REMOVED FROM SERVICE, BECAUSE VISUAL INSPECTION REVEALED CRACKS COMING FROM PINGED MARKS FOR WASHER RETENTION.SDR CA120925004Control Unit · malfunctioned(CAN) DURING GROUND RUN OF THE ENGINES, THE CREWS NOTICED THAT THE LT PROPRELLER WOULD NOT FEATHER WHILE IN GROUND IDLE POSITION EITHER ELECTRICALLY USING FEATHER PUMP, OR MANUALLY USING THE CONDITION LEVERS. BUT THE PROP WOULD FEATHER WHEN POWER LEVERS ARE ISDR QXEA2012092401100Pitch Control · malfunctionedNR 1 ENGINE PROPELLER DOES NOT APPEAR TO BE COMPLETELY FEATHERED. NOTICED ON PREFLIGHT WALK AROUND. REPLACED NR 1 ENGINE PCU IAW AMM 61-20-11-000-801 AND 61-20-11-400-801. OPS AND LEAK CHECK GOOD. RETURNED TO SERVICE.
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