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 95ZZZM370Rod · brokenON LANDING FOR FLIGHT 1973 AT AET, NR 1 PROPELLER FAILED TO REVERSE, LOW PITCH STOPS DID NOT RETRACT. FOUND INTERMEDIATE PROP CONTROL ROD BROKEN, REPLACED ROD AND PERFORMED OPS CHECK PER MM CHAP 76.SDR COM11936Tq Sig Cond · defectiveLEFT TORQUE INDICATION ERRATIC. LEFT PROPELLER AUTOFEATHERED. REPLACED THE TORQUE SIGNAL CONDITIONER.SDR VTZA95225Prop Pitch Contl · malfunctionedFLT 6345 - IAD-LGA - ABORTED TAKEOFF DUE TO THE LEFT ENGINE ONLY MAKING 80 PERCENT TORQUE. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED THE PROP PITCH CONTROL. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)SDR COM3117Pcu · defectiveRT PROPELLER RPM IS SLOW TO ACCELERATE WHEN POWER ADVANCED. REPLACED THE PROPELLER PITCH CONTROL.SDR 95ZZZX4172Csu · defectiveFLT 4269 - AFTER TAKEOFF, SETTING CLIMB POWER, COULD NOT MATCH TORQUE WITHOUT SPLIT BETWEEN CONDITION LEVER POSITIONS. LEFT C.L. AT FULL STOP. CREW ELECTED TO RETURN TO FIELD. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. DAY/MX INSPECTED AIRCRAFT AND DISCOVERESDR UF6A950701Pcu · faultyORD - FLT 5015 - LEFT PROP WOULD NOT FEATHER ON ENGINE SHUTDOWN. MAINTENANCE REPLACED THE PROP CONTROL UNIT. (M)SDR UF6A950610Pcu · faultyORD - FLT 5115 - LEFT PROPELLER WOULD NOT FEATHER ON ENGINE SHUT DOWN. MAINTENANCE PERFORMED OPERATIONAL CHECK. OPS CHECK GOOD. (X)SDR COM11920Ballscrew Servo · defectiveWHILE PERFORMING HAMILTON STANDARDS S/B 14RF-9-61-A53 REV 5, FOUND THE SPLINES OF THE BALLSCREW SERVO WERE WORN BEYOND LIMITS PRIMARILY ON THE RIGHT SIDE OF THE SPLINES. THE PCU WAS SENT TO HAMILTON STANDARD FOR FURTHER EVALUATION.SDR SIMA951692Prop Contl Unit · malfunctionedDFW - FLT 3835 - NR 2 ENGINE ONLY ACHIEVED 70 PERCENT TORQUE ON TAKEOFF ROLL. AIRCRAFT ABORTED TAKEOFF AND RETURNED TO THE GATE. CHANGED FEATHERING CONTROL UNIT. OPS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE. (M)SDR SWIA95594Pcu · malfunctionedRT SIDE PROP OVERSPEED ON TAKEOFF. ABORTED TAKEOFF. PROPELLER NP STABILIZED AT 102.5 TO 102.6 PERCENT AFTER 103.1 MAX. INSPECTED THE PCU (PROPELLER CONTROL UNIT) RIGGING AND INSPECTED BETA TUBE SEALS. REINSTALLED BETA TUBE IAW 61-10-02. FOUND TO BE WITHINSDR WTAA950208BO-Ring · leakingSFO - LEFT ENGINE LOW OIL PRESSURE INDICATION REPORTED ACCOMPANIED BY THE REPORT OF SMOKE ODOR IN CABIN DURING TAXI OUT. CREW SECURED LEFT ENGINE AND RETURNED TO GATE. MAINTENANCE FOUND OIL LEAKING AT LEFT ENGINE BETA TUBE O-RINGS AND PROPELLER DOME SEAL. RSDR S2YA950012Switch · failedTHE PROP SYNCROPHASER BECAME INOP DUE TO AN ON/ON SWITCH BEING USED INSTEAD OF AN ON/OFF SWITCH. BEECH IS USING A THREE-POLE SWITCH AND THE ONE BARE UNPROTECTED TERMINAL HAS POWER SWITCHED TO IT WHEN YOU THINK IT IS SELECTED TO THE OFF POSITION. THIS HAS OCCSDR SIMA951591Pcu · malfunctionedDFW - FLT NR 3877 - DURING TAKEOFF RIGHT ENGINE PROPELLER RPM FLUCTUATED APPROXIMATELY 200 RPM. TAKEOFF ABORTED AND AIRCRAFT RETURNED TO GATE. REMOVED AND INSPECTED PROP CONTROL UNIT. SYSTEM OPS CHECKED GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M)SDR 95ZZZX3232Gasket · mismanufacturedGASKET RECEIVED NEW FROM VENDOR INCORRECTLY MANUFACTURED. INSTALLATION WOULD CAUSE MAJOR OIL LEAK FROM PROP PITCH CONTROL. RECENTLY FOUND PROP PITCH CONTROL MOUNTING GASKETS INCORRECTLY MANUFACTURED.SDR COM11910Pcu · defectiveLEFT PROPELLER IS SLOW TO UNFEATHER. REPLACED THE PROP PITCH CONTROL UNIT.SDR COM11912Pcu · defectiveRT ENGINE NP DROPPED TO 50 PERCENT; TORQUE CLIMBED TO 125 PERCENT. REPLACED THE PITCH CONTROL UNIT.SDR 95ZZZX5942Yoke · arms crackedTHE SUBJECT YOKE WAS RECEIVED FOR WORN WEAR PLATES. VISUAL EXAMINATION REVEALED TWO CRACKED YOKE ARMS; ONE CRACK EXTENDED ALMOST THE TOTAL THICKNESS OF THE ARM ON ONE SIDE OF THE ARM. THE SECOND ARM CONTAINED A CRACK APPROXIMATELY 0.400 INCH IN LENGTH. THE SDR MALA954479Linkage · dirtyMSP - FLT 3327- IN CRUISE FLIGHT, THE ENGINE RPM DID NOT RESPOND TO POWER LEVER MOVEMENT. THE AIRCRAFT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE CLEANED THE PROP GOVERNOR LINKAGE. THE PROBLEM COULD NOT BE DUPLICATED DURING GROUND RUNS. SYSTESDR UF6A950508Pcu · failedORD - FLT 5089 - THE LT ENGINE WOULD NOT AUTOFEATHER TEST. MAINTENANCE REPLACED THE LT PROPELLER CONTROL UNIT. (Z)SDR COM31089Gear Box · low oilRT PROPELLER WILL NOT COME OUT OF FEATHER. SERVICED RT PROPELLER GEAR BOX TO PROPER OIL LEVEL.SDR SIMA951461Connector · looseDFW - FLT 3871 - AUTO COARSENING FAILED AFTER TAKEOFF. FOUND LOOSE CANNON PLUG ON CTOT PANEL. TIGHTENED PLUG SYSTEM. OPS CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (W)SDR 95ZZZX3129Prop Control · bolt wornWHILE RUNNING THE ACFT AFTER AN ANNUAL INSPECTION, FOUND PROP CONTROL VERY STIFF. EVENTUALLY, AFTER ATTEMPTING TO MOVE THE CONTROL, IT BROKE OFF. THE POINT OF BREAK WAS APPROXIMATELY 8 INCHES FORWARD ON THE CONTROL KNOB. IN REPLACING THE CABLE, FOUND THE BOSDR 95ZZZM128Ecu · failedFLT 3217 - LYH-PHL - AFTER LANDING, THE NR 2 PROP STABILIZED AT 650 RPM. THE CREW CYCLED THE CONDITION LEVER TO START FEATHER, THEN BACK TO MINIMUM AND THE PROP WOULD NOT COME OUT OF FEATHER. REMOVED AND REPLACED THE NR 2 ELECTRONIC CONTROL UNIT.SDR 95ZZZM127Reversion Relay · failedFLT NR 3068 - PHL-LYH - ON TAKEOFF, THE RIGHT PROP DECREASED FROM 1200 RPM TO 600 RPM. THE CREW ABORTED THE TAKEOFF WITHOUT INCIDENT. REMOVED AND REPLACED THE ENGINE HARNESS BETWEEN P3 AND P42 AND REMOVED AND REPLACED THE REVERSION RELAY 7611-K2.SDR 95ZZZM126Engine Harness · failedFLT NR 3068 - PHL-LYH - ON TAKEOFF, THE RIGHT PROP DECREASED FROM 1200 RPM TO 600 RPM. THE CREW ABORTED THE TAKEOFF WITHOUT INCIDENT. REMOVED AND REPLACED THE ENGINE HARNESS BETWEEN P3 AND P42 AND REMOVED AND REPLACED THE REVERSION RELAY 7611-K2.SDR COM11897Pcu · out of adjustDURING TAKEOFF LT NP INDICATED 99.3 PERCENT. ADJUSTED PCU FOR 100 PERCENT PROPELLER RPM.SDR UF6A950504Pcu · failedORD - FLT 5030 - THE LT PROPELLER DID NOT FULLY FEATHER ON SHUTDOWN. MAINTENANCE PERFORMED OPERATIONAL CHECK, OPS CHECK GOOD. (Z)SDR 95ZZZM144Pcu · malfunctionedFLT 4519 - CLE - LEFT PROP RPM FLUCUATION ON APPROACH, THE THE RPM DROPPED TO 1000. THE PILOT SHUT DOWN THE ENGINE AND LANDED WITHOUT INCIDENT. REPLACED LEFT PROP CONTROL UNIT.SDR ERA00005Beta Switch · out of adjustRT PROPELLER FEATHERED (UNSCHEDULED) AND RT BETA LIGHT CAMEON. RETURNED TO SCC WITHOUT INCIDENT. ADJUSTED BETA SWITCHIAW DHC TAB 610/1, CONFIRMED NO OVER TORQUE.SDR COM11884Ballscrew Servo · defectiveWHILE PERFORMING HAMILTON STANDARDS S/B 14RF-9-61-A53 REV S, FOUND THE SPLINES OF THE BALLSCREW SERVO WORN BEYOND LIMITS PRIMARILY ON THE RIGHT SIDE OF THE SPLINES. THE PCU WAS SENT TO HAMILTON STANDARD FOR FURTHER EVALUATION.SDR COM31067Pressure Switch · defectiveAUTO COARSEN FAIL WARNING DURING TAKEOFF. REPLACED THE P3 ARMING SWITCHES.SDR 95ZZZW697Ball End · not seatedON TAKEOFF, JUST AFTER ROTATION, NR 1 ENGINE LOST POWER. RPM DROPPED, TORQUE WENT TO 4500 LBS PROP WOULD NOT FEATHER WITH PROP LEVER. PROP WAS FEATHERED BY SHUTTING DOWN ENGINE. MAINTENANCE INSPECTED ALL CONTROLS AND LINKAGE. FOUND BETA CABLE STOP BALL UNSSDR 95ZZZW696Wire Rope · out of rigON TAKEOFF, JUST AFTER ROTATION, NR 1 ENGINE LOST POWER. RPM DROPPED, TORQUE WENT TO 4500 LBS PROP WOULD NOT FEATHER WITH PROP LEVER. PROP WAS FEATHERED BY SHUTTING DOWN ENGINE. MAINTENANCE INSPECTED ALL CONTROLS AND LINKAGE. FOUND BETA CABLE STOP BALL UNSSDR 95ZZZW659Valve Housing · looseDURING DESCENT INTO RMS ON FLT ADT3, NR 1 ENGINE WOULD NOT COME UP ABOVE 97 PERCENT. FOUND HOUSING GOVERNOR ASSEMBLY LOOSE. REPLACED VALVE HOUSING, PERFORMED ENGINE RUN, OPS CHECKED GOOD.SDR VTZA95145Prop Governor · out of adjustFLT NR 6383 - CMH-IAD - DURING TAKEOFF ABORTED THE TAKEOFF DUE TO THE RIGHT ENGINE ONLY MAKING 40 PERCENT TORQUE. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. CONTRACT MAINTENANCE ADJUSTED THE PROP GOVERNOR LOW RESET. AIRCRAFT WAS RELEASED AND APPROSDR 95ZZZM16Beta Cable · looseFLT 5630 - AFTER TAKEOFF LEFT TORQUE AND PROP RPM INDICATION FLUCTUATED. FOUND BETA CABLE LOOSE, TIGHTENED CABLE, RERIGGED LEFT ENGINE. OPS CHECK NORMAL. (M)SDR SWIA95556O-Ring · damagedDURING TAKEOFF, THE LEFT PROP WAS FLUCTUATING. REMOVED SPINNER, BETA CAP, AND TUBE. FOUND FLAT SPOT ON INNER O-RING. REPLACED BOTH O-RINGS. SET BLADE ANGLE AND REINSTALLED PROP CAP AND SPINNER. GROUND RAN THE NR ONE AND NR TWO ENGINES. CHECKED BLADE ANGLESDR RAIA950420Connector · dirtySTL - FLT 7459 - NO CONTROL OVER RT RPM BETWEEN 83 PERCENT TO 90 PERCENT. MAINTENANCE CLEANED OIL RESIDUE FROM RT PROPELLER CONTROL UNIT CANNON PLUG. GROUND RUNS REVEALED NORMAL OPERATION. (Z)SDR UF6A950401Switch · failedFLT 777 - SBN - THE AUTOFEATHER SYSTEM WOULD NOT TEST. MAINTENANCE ADJUSTED CONDITION LEVER MICROSWITCH NR 2 ENGINE. (M)SDR UF6A950307Connector · dirtyPIA - FLT 5090 - THE NR 2 ENGINE AUTOFEATHER UNIT WOULD NOT TEST. MAINTENANCE CLEANED CANNON PLUG 'A'. (X)SDR PLGA327951Cable Lockplate · looseDURING COMPLIANCE OF FCD 76-7 THE RIVETS SECURING THE PROPELLER CONTROL CABLE LOCKPLATE TO THE AIRFRAME STRUCTURE WERE FOUND TO BE LOOSE. THIS RESULTED IN THE LOCKPLATE TO FLEX SIGNIFICANTLY AND NOT PROPERLY SECURE THE PROPELLER CONTROL CABLES WHEN THE PROPELSDR 95ZZZW549Beta System · out of rigAIRCRAFT LEFT PROP FEATHERED AT LIFT OFF AT DIA. RETURNED TO GATE WITHOUT INCIDENT FOUND BETA SYSTEM OUT TO RIG. FOUND BETA VALVE STICKING ALL THE WAY OUT. SUSPECT BETA CABLE WAS STRETCHED. RERIGGED BETA SYSTEM AND RETURNED TO SERVICE.SDR COM11825Actuator · leakingLEFT ENGINE LEAKING OIL FROM THE PROPELLER AREA. REPLACED THE PROPELLER ACTUATOR ASSY.SDR 95ZZZW471Cable Lockplate · detachedDURING THE PREFLIGHT PROPELLER MANUAL FEATHER CHECK THE PROPELLERS WOULD NOT FEATHER, ALL OTHER PROPELLER FUNCTIONS OPERATED NORMALLY. THE PROPELLER CONTROL LEVER LINKAGES WERE INSPECTED. THE RIVETS SECURING THE PROPELLER CONTROL CABLE LOCKPLATE TO THE AIRFRSDR 95ZZZX1833Casing Assy · dentedPART WAS RECEIVED FROM VENDOR (TURBINE PARTS) AND FOUND DENTED BEYOND SERVICEABLE LIMITS.SDR COM31043Press Switch · defectiveRECEIVED AUTO COARSEN WARNING DURING TAKEOFF. REPLACED THE P3 PRESSURE SWITCHES.SDR 96ZZZX394Switch · failedON DEPARTURE, LEFT PROPELLER LOW PITCH LIGHT WILL NOT GO OUT. TROUBLESHOOTING BY SWAPPING SWITCHES LEFT TO RIGHT IDENTIFIED DEFECTIVE SWITCH. REPLACED SWITCH, CORRECTED THE PROBLEM.SDR COM11810Pump · defectiveLEFT PROPELLER AUXILIARY PUMP TEST FAILED. REPLACED PUMP.SDR 96ZZZX4689Control Cable · unscrewedPILOT WAS UNABLE TO GET PROPELLER ON LOCKS AT ENGINE SHUT-DOWN. INSPECTION REVEALED SEPARATION OF CABLE ASSEMBLY WHERE THE MOUNTING BARREL THREADS INTO OUTER SPIRAL ASSEMBLY. THERE ARE NO PROVISIONS FOR THIS AREA TO BE SAFTIED. PART WAS NOT BROKEN, ONLY UNSSDR RAIA950301Pitch Control · failedSTL - FLT 7464 - THE RT BETA LIGHT ILLUMINATED IN FLIGHT. MAINTENANCE REPLACED RT PROPELLER PITCH CONTROL UNIT. SYSTEM AND LEAK CHECK GOOD ON GROUND RUN. (W)
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