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 S2YA98024Control Cable · looseLSE/MKE - FLT 1090 - WHILE CLIMBING THROUGH 6,700 FEET, THE RT ENGINE TORQUE INCREASED MOMENTARILY AND THEN SLOWLY STARTED TO DECREASE. THE CREW SECURED THE ENGINE AS THE TORQUE DROPPED PAST 1,000 FEET/POUNDS. DECLARED AN EMERGENCY AND DIVERTED TO MSN WHERE SDR RAIA980809Transducer · failedDCA - FLT 7750- IEC'S FAULTED. REMOVED AND REPLACED NR 2 NTS PRESSURE SWITCH. (M)SDR VNAA9808010Connector · failedTHE LEFT PROPELLER OVERSPEED TEST FAILED, DURING THE TAXI OUT FOR TAKEOFF. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE LEFT PROPELLER OVERSPEED GOVERNOR CANNON PLUG, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 61-01-03. OPERSDR SIMA982071Pitch Cont Unit · surgesFPO - FLT 5711 - RIGHT PROP RPM SURGED IN EXCESS OF 1500 RPM. POWER SETTING 25-35 PERCENT TORQUE POWER REDUCTION BROUGHT SURGE TO 1360-1480 RPM. PROP DID NOT FEATHER ON ENGINE SHUTDOWN AND WILL NOT RESPOND TO FEATHERING PUMP. SURGE IS 800-100/1340 WITH CONDSDR UF6A980718Pcu · malfunctionedCWA - FLT 5720 - NR 2 PROP CWP ILLUMINATED ON TAKEOFF. MAINTENANCE REPLACED THE NR 2 PCU. OPS CHECKED GOOD. (M)SDR UF6A980714Pcu · failedORD - FLT 5765 - NR 2 ENGINE WOULD NOT COME OUT OF FEATHER WHEN CONDITION LEVER WAS ADVANCED TO MINIMUM RPM. MAINTENANCE REMOVED AND REPLACED NR 2 PCU. SYSTEM OPS CHECKED GOOD. (M)SDR 98ZZZX3267Control Arm · looseDURING ANNUAL INSPECTION FOUND PROPELLER GOVERNOR ADAPTER ARM BRACKET BOLT HOLE/PROP CABLE RED END ATTACH BOLT LOOSE AND HOLE ELONGATED. APPROXIMATELY 650 HOURS SMOH, LAST TIME BOLT INSTALLED. THIRD 'LOOSE' BOLT FOUND LAST 3 YEARS DIFFERENT TCM TYPE INSTALLASDR AU981017Switch · leaking(AUS) NR 2 ENGINE PROPELLER CONTROL UNIT PRESSURE SWITCH LEAKING OIL.SDR COMA9810151Pcu · malfunctionRIGHT HAND RPM DROPPED 30 PERCENT DURING TAKEOFF ROLL. REPLACED THE RIGHT HAND PCU.SDR VNAA9806020Connector · dirtyDURING THE TAXI FOR TAKEOFF, THE RIGHT HAND PROPELLER OVERSPEED TEST, FAILED TO OPERATE WHEN SELECTED. THE AIRCRAFT RETURNED TO THE GATE. OUTSTATION MAINTENANCE INSPECTED AND CLEANED THE RIGHT HAND PROPELLER OVERSPEED GOVERNOR CANNON PLUG, IN ACCORDANCE WITHSDR C2XA98BT045Pcu · failedEWR - FLT 3308 - ON TAKEOFF FROM NEWARK, AIRCRAFT NR 1 ENGINE STARTED TO FEATHER, ABORTED TAKEOFF AND RETURNED TO GATE. MAINTENANCE TROUBLESHOT AND FOUND THE PROPELLER CONTROL UNIT TO BE CAUSING THE PROBLEM. REMOVED AND REPLACED PCU WITH SERVICEABLE UNIT, OPSDR MALA976154Select Switch · failedAUTOFEATHER COULD NOT BE DISARMED AFTER TAKEOFF. AIRCRAFT RETURNED TO MSP. MAINTENANCE REPLACED AUTOFEATHER SELECT SWITCH. OPS CHECK GOOD.SDR 98ZZZX2508Switch · failedSHORTLY AFTER LEAVING RUNWAY ON TAKEOFF FROM GRAND CANYON, AZ, LEFT PROPELLER FEATHERED UNCOMMANDED BY CREW. FLIGHT ABORTED AND A SAFE LANDING WAS MADE AT VALLE AIRPORT, AZ. MAINTENANCE REPLACED DEFECTIVE TORQUE PRESSURE SWITCH ON RIGHT ENGINE.SDR AU980730Control Cable · contaminated(AUS) PROPELLER BETA CABLE CONTAMINATED AND STICKING. PART TOTAL CYCLES: 18,161.SDR 98ZZZX2420Pcu · inoperatiaveNR 2 ENGINE PROPELLER RPM FLUCTUATING BETWEEN 1032 AND 1088. UNABLE TO CONTROL PROP RPM. SHUT DOWN ENGINE AND MADE UNEVENTFUL LANDING AT ANC. REPLACED NR 2 PCU, GROUND CHECKS GOOD.SDR PLGA980610AClamp · looseBTV - FLT 4262 - DURING CLIMB-OUT CREW NOTICED RT ITT RISING. AIRCRAFT RETURNED TO BTV WITHOUT INCIDENT. MAINTENANCE FOUND CLAMP ON HIGH PRESSURE BLEED LINE HAD COME OFF AT ENGINE BOSS. CLAMP WAS REPLACED. ALL CHECKS SATISFACTORY. AIRCRAFT WAS RETURNED TOSDR SIMA981461Actuator · wornJFK - FLT 9852 - LEFT PROPELLER RPM SURGES. INSPECTED PROPELLER ACTUATOR. FOUND ABNORMAL WEAR. REPLACED LEFT PROP ACTUATOR. PERFORMED OPERATION CHECK SATISFACTORILY. AIRCRAFT RETURNED TO SERVICE. PART TOTAL CYCLES: 5,309. (X)SDR 98ZZZX2193Ppc · malfunctionedPILOT REPORTS EXCESSIVE YAW TO THE RIGHT. REMOVED AND REPLACED RT ENGINE PPC UNIT. PILOT REPORTS NO DEFECT NOTED. OPS CHECK GOOD. SEE ATTACHED QUALITY ASSURANCE FINDINGS REPORT FROM ALLIED SIGNAL DATED MAY 18, 1998.SDR COMA9810127Pump · inoperativeLEFT ENGINE ELECTRIC FEATHER PUMP IS INOP. REPLACED AUXILIARY FEATHER PUMP.SDR C2XA98IA183Switch · inoperativeLCH - FLT 3818 - THE PILOT REPORTED THE NR 2 ENGINE CYCLED IN AND OUT OF FEATHER SEVERAL TIMES ON APPROACH UNTIL THE AUTOFEATHER SYSTEM WAS TURNED OFF. THE AIRCRAFT WAS FERRIED TO IAH WHERE MAINTENANCE REMOVED AND REPLACED THE LEFT POWER LEVEL SWITCH (NR 1) ASDR RAIA980509Monopole · failedFLT 7394 - STL - CREW REPORTS LEFT SRL INOPERATIVE, SRL CAPTION ILLUMINATED ON TAKEOFF ROLL. MAINTENANCE REPLACED LEFT PROP GOVERNOR MONOPOLE. (M)SDR VNAA9805005Overspeed Test · failedON THE TAXI OUT, PRIOR TO TAKEOFF, THE LEFT HAND PROPELLER OVERSPEED TEST FAILED TO OPERATE.SDR GLBA98076Pcu · malfunctionedRIGHT PROPELLER STARTED TO OSCILLATE, 98.3 - 101.2 PERCENT TORQUE FOR APPROXIMATELY 15-20 SEC, THEN SETTLED DOWN. REMOVED AND REPLACED PROPELLER CONTROL UNIT. (M)SDR 98ZZZX2293Control Cable · misinstalledWHEN REMOVING PROPELLER CONTROL CABLE (OWNER/OPERATOR NOTED THAT CONTROL MOVED DURING OPERATION BECAUSE OF NO FRICTION DEVICE). FOUND CABLE ROUTED AGAINST AILERON INTERCONNECT CABLE ASSY JUST AFT OF FIREWALL. INSTALLED NEW CABLE AND ADJUSTED ROUTING SO AS NOSDR 98ZZZX2286Control Cable · misinstalledWHEN REMOVING PROPELLER CONTROL CABLE (OWNER/OPERATOR NOTED THAT CONTROL MOVED DURING OPERATION BECAUSE OF NO FRICTION DEVICE). FOUND CABLE ROUTED AGAINST AILERON INTERCONNECT CABLE ASSY JUST AFT OF FIREWALL. INSTALLED NEW CABLE AND ADJUSTED ROUTING SO AS NOSDR WWMA9800083Prop Contl Unit · failedRIGHT ENGINE PROPELLER RPM WAS UNCONTROLLABE AND STUCK AT 1100 RPM, SHUT DOWN THE ENGINE. MAINTENANCE CHECKED ENGINE RIGGING AND REINDEXED THE PROPELLER CONTROL UNIT.SDR C2XA98IA141P/C Board · inoperativeIAH - DURING FLT 3838 - THE NR 2 PROPELLER FEATHERED ON APPROACH TO IAH. THE A/C LANDED WITHOUT INCIDENT AT IAH WHERE MAINTENANCE REMOVED AND REPLACED AUTOFEATHER PRINTED CIRCUIT BOARD. OPERATION CHECKS WERE DONE IAW B1900-D MM 61-21-00 AND THE AIRCRAFT WAS SDR QXEA9800623Control Unit · malfunctionSEA - WHILE TAXIING TO PARKING, THE NR 2 ENGINE FEATHERED, THEN CAME OUT OF FEATHER WITHOUT ANY INPUT FROM THE CREW. THE POWER LEVER WAS SLIGHTLY AFT OF THE FLIGHT IDLE GATE. THE CONDITION LEVER WAS AT MIN. REPLACED NR 2 PROPELLER CONTROL UNIT (PCU). RIGGESDR VTZA98173Governor · out of adjustFLT 6248 - IAD-BGM - DURING CLIMB, MADE AN UNSCHEDULED LANDING AT IAD DUE TO RT ENGINE WOULD NOT MAKE TORQUE. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND ADJUSTED X-SCREW ON PROP GOV. OPS CHECK OK. AIRCRAFT WAS RELEASED ANSDR CA980430032Seal · pinched(CAN) DURING A SIMULATED EMERGENCY DESCENT THE PILOT DETECTED AN OVERSPEED OF THE NR 1 ENGINE. EMERGENCY PROCEDURES WERE CARRIED OUT AND THE ENGINE WAS SHUTDOWN AND THE PROPELLER FEATHERED. THE TRAINING MISSION WAS ABORTED AND THE AIRCRAFT LANDED. THE OVERSPESDR SABA980027Switch · failedHTS - FLT 5169 - ON FLIGHT FROM HTS TO CLT, LEFT BETA LIGHT CAME ON DURING TAKEOFF ROLL. PILOT ABORTED TAKEOFF. EMERGENCY WAS DECLARED. AIRCRAFT RETURNED TO PARKING WITH NO OTHER PROBLEMS. MAINTENANCE FROM CLT FOUND THE LEFT BETA SWITCH BAD. REMOVED AND RSDR VNAA9804019Connector · dirtyDURING THE TAXI FOR TAKEOFF, THE RIGHT HAND PROPELLER OVERSPEED TEST, FAILED TO OPERATE WHEN SELECTED. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE CLEANED AND INSPECTED THE RIGHT HAND PROPELLER OVERSPEED GOVERNOR CANNON PLUG. OPERATIONAL CHECKS WERE COMPSDR REXA98086Pcu · surgedABORTED TAKEOFF, APPEARED THAT LEFT ENGINE TORQUE SURGED AND CAUSED AIRCRAFT TO YAW TO RIGHT. REMOVED AND REPLACED LEFT PCU. PERFORMED GROUND RUNS. OPS CHECK GOOD. (M)SDR WTAA980061Overspeed Switch · failedFAT - ON CLIMB-OUT AT 140 KNOTS OVERSPEED HORN SOUNDED. AIRCRAFT RETURNED TO STATION. MAINTENANCE REPLACED OVERSPEED SWITCH. OPERATIONAL CHECK SATISFACTORY. AIRCRAFT RETURNED TO SERVICE. (M)SDR CA980406039Sleeve · worn(CAN) WHEN NR 1 ENGINE SHUT DOWN, THE NR 1 PROPELLER FEATHERED AND COULD NOT BE PUT ON THE START LOCKS. SLEEVE PIN WORN BEYOND LIMITS AND THE INTERNAL BUSHING WAS ALSO WORN.SDR 98ZZZX1418Prop Lever · jammedLEFT PROPELLER WAS FEATHERED IN-FLIGHT FOR TRAINING. UNABLE TO INITIALLY GET PROPELLER LEVER BACK FORWARD. FINALLY, WHEN LEVER BROKE LOOSE, A LOUD SNAP WAS HEARD. PROPELLER CAME OUT OF FEATHER. LANDING WAS UNEVENTFUL. UPON INVESTIGATION, FOUND BOTH PROP LSDR VNAA9803026Connector · dirtyTHE RIGHT HAND PROPELLER OVERSPEED TEST FAILED WHEN SELECTED, DURING TAXI CHECKS. THE AIRCRAFT RETURNED TO THE GATE. OUTSTATION MAINTENANCE INSPECTED, CLEANED AND SECURED THE RIGHT HAND OVERSPEED GOVERNOR CANNON PLUG. OPERATIONAL CHECKS WERE COMPLETED IN ACCSDR 98ZZZX1459Cable · failedPILOT REPORTED PROPELLER CONTROL CABLE LOST TENSION DURING RUN-UP. FOUND CABLE CORE WIRE BROKEN WHERE CABLE CONNECTS TO GOVERNOR. ROUTING OF CABLE HAD PLACED A BENDING PRELOAD ON CABLE. SUBMITTER SUGGESTED STRAIGHTER ROUTING AND A ROD END TYPE CABLE INSTEADSDR VNAA9803024Pcu · failedTHE RIGHT HAND PROPELLER FAILED TO COME OUT OF FEATHER WHEN SELECTED. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE RIGHT HAND PROPELLER CONTROL UNIT IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 61-21-06. LEAK AND OPERATION CHECSDR CA980318006Beta Switch · leaking(CAN) CREW REPORTED NO BETA INDICATION WHEN ON LANDING ROLL AND TAXI. BETA SWITCH AND PLUMBING CHECKED. OIL LEAK WAS EVIDENT ON ENGINE COWL FLAP. SOURCE OF OIL LEAK DETERMINED TO BE FROM BETA SWITCH VENT HOLES. 0.5 LITERS OF OIL WAS LOST IN THIS MISHAP.SDR CA970731026Pressure Switch · malfunctioned(CAN) FLIGHT CREW REPORTED THAT THE AUTOFEATHER ARMING LIGHT FOR THE RT A/F SYSTEM WAS NOT ILLUMINATING. SYSTEM TEST WAS OK. MAINTENANCE REPLACED THE RT HIGH PRESSURE SWITCH FOR RESPONSIBLE FOR TURNING THE LIGHT ON. A/C SYSTEM WAS TESTED AND FOUND OK.SDR S2YA98007Pressure Switch · failedFLT 1162 - MKE-SBN - DURING CLIMB-OUT, THE LT AUTO-FEATHER ANNUNCIATOR EXTINGUISHED. THE CREW DECIDED TO DECLARE AN EMERGENCY AND RETURN TO MKE. AFTER MAKING AN UNEVENTFUL LANDING MAINTENANCE INSPECTED THE A/C AND DETERMINED THAT THE RT HIGH PRESSURE AUTO-FESDR VTZA98123Prop Governor · out of adjustEWR/IAD - FLT 6555 - DURING TAKEOFF AT 1245 HOURS ON 3-8-98, AIRCRAFT ABORTED TAKEOFF DUE TO RT ENGINE RPM ONLY REACHED 98.5 PERCENT. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND ADJUSTED X-SCREW ON PROP GOVERNOR. GROUND RANSDR VTZA98113Nts Transducer · failedFLT 6416 - IAD-CHS - AIRCRAFT ABORTED TAKEOFF DUE TO GREEN APR ARM WARNING LIGHT ILLUMINATED. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED NTS TRANSDUCER, AND GROUND RAN AIRCRAFT, OPS CHECK OK. AIRCRAFT SDR QXEA9800241Relay · malfunctionAUTOFEATHER FAILED TO ARM. INSPECTED AND CLEANED POWER LEVER SWITCHES AND REPLACED 6121-K2 RELAY, OPERATIONAL CHECKS GOOD.SDR 98ZZZX1043Housing · crackedREFERENCE: FW06347. REASON FOR REMOVAL: LEAKING AROUND MOUNTING CLAMP AREA. POSSIBLE CAUSE: TBD. RECOMMENDATIONS: HOUSING TO BE SENT TO HAMSTD FOR METALLURGICAL EVALUATION. CUSTOMER: SKYWEST A/L.SDR RAAA98E9009Adapter · wornAFTER COMPLETION OF NR 4 PROPELLER INSTALLATION GROUND RUN WITH ENGINES IN HIGH SPEED GROUND IDLE AND POWER LEVERS IN GROUND RANGE MAINT PERSONNEL NOTED HEAVY, ABNORMAL VIBRATION. SHUTDOWN NR 4 ENGINE WITH EMERGENCY HANDLE AND VIBRATION CONTINUED. VIBRATION SDR VTZA98084Prop Gov · out of adjustFLT 6478 - JFK-IAD EXPERIENCED AN ILLUMINATION OF THE LEFT SRL LIGHT CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE CONTROL WAS NOTIFIED AND MAINTENANCE WAS DISPATCHED. MAINTENANCE DEFERRED THE LEFT SRL ON THE AIRCRAFT UNDER MEL NR 76-1 AND DMI NSDR REXA98057Prop Overspeed · malfunctionedRIGHT HAND PROPELLER OVERSPEED WILL NOT TEST. CREW SHUT DOWN RIGHT ENGINE, RESTARTED AND TESTED AGAIN WITH NO DEFECTS. (X)SDR 98ZZZX1177Bracket · failedUPON TRYING TO REDUCE TO CLIMB POWER, THE RIGHT PROP CONTROL WAS STIFF WHEN MORE PRESSURE APPLIED. THE CONTROL BROKE FREE, BUT THE RPM DID NOT CHANGE. FOUND PROP CABLE HOLD-DOWN BRACKET BROKEN AND CABLE STIFF. FREED UP CABLE AND REPLACED BRACKET. OPERATIO
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