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 CA990210018Control Assy · disconnected(CAN) PROPELLER CONSTANT SPEED UNIT FAILED WHEN SHEAF FAILED AND LET GO AT SWEDGED JOINT. SUBMITTER SUGGESTS THAT THIS PART, WHICH IS ON CONDITION, BE MADE A LIFE LIMITED PART. IT IS STATED THAT THERE IS NO INSPECTION METHOD THAT CAN BE USED TO DETECT WEAR WSDR VNAA9901025Connector · dirtyTHE LEFT PROPELLER MOVED TO THE FEATHER POSITION WHEN POWER LEVERS WERE ADVANCED TO FLIGHT IDLE. THE AIRCRAFT RETURNED TO THE GATE. OUTSTATION MAINTENANCE CLEANED THE LT ENGINE SENSOR HARNESS CONNECTORS IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 73-21-00, SDR CA990129020Tscu · faulty(CAN) AUTOFEATHER SYSTEM ARM LIGHT ILLUMINATES AT 90 PERCENT TORQUE, WITH NO SELECTION ON OF THE AUTOFEATHER SYSTEM. TORQUE SIGNAL CONDITIONING UNIT (TSCU) REPLACED.SDR AMWA002467Switch · malfunctionedON APPROACH TO DSM FROM MCI, THE RT PROP WAS CYCLING IN/OUT OF FEATHER. DSM MAINTENANCE REPLACED THE RT LOW PRESSUER SWITCH. OPS CHECK NORMAL. THE FOLLOWING DAY, THE PROBLEM REOCCURED IN MCI WHERE THE PEDESTAL SWITCHES WERE ADJUSTED. OPS CHECK NORMAL. NO SDR CA990119019Idle Gear · cracked(CAN) DURING NDT INSPECTION, A CRACK WAS FOUND IN THE IDLE GEAR.SDR VNAA9901008Seal · leakingTHE LEFT HAND ENGINE OIL TEMPERATURE WAS BELOW EXEPTABLE LIMITS, DURING THE TAXI OUT FOR TAKEOFF. THE AIRCRAFT RETURNED TO THE GATE. DURING THE TRANSIT TO THE GATE THE OIL TEMPERATURE RETURNED TO ACCEPTABLE LIMITS, BUT THE CREW THEN NOTED OIL ON THE LEFT ENGSDR PLGA990105AControl Cable · disconnectedLGA - FLT 6539 - AFTER TAKEOFF AND WHILE PASSING THROUGH 5000 FT, THE LEFT PROPELLER RPM DROPPED TO 1140. THE CREW WAS UNABLE TO CORRECT THE PROBLEM AND FOLLOWED PROCEDURES TO SHUT THE ENGINE DOWN. THE AIRCRAFT RETURNED TO LGA AND LANDED WITHOUT INCIDENT. MSDR CA990311013Governor · misinstalled(CAN) QUALITY CONTROL PROBLEM AFFECTING THE RELATIONSHIP OF THE NF GOVERNOR IN RELATION TO THE OVERSPEED GOVERNOR. CORRECTION TO RIGGING WAS REQUIRED.SDR RAIA981222Prop Governor · out of adjustFLT 7754 - ORF - RIGHT ENGINE RPM ERRATIC, SHUTDOWN RIGHT ENGINE. MAINTENANCE ADJUSTED PROP GOVERNOR. (M)SDR MALA976271Prop Contl Unit · malfunctionedRT PROP UNDERSPEED ON TAKEOFF. AIRCRAFT RETURNED TO MSP. MAINTENANCE REPLACED PROP DOME SEALS, PITCH CONTROL UNIT AND PROP OVERSPEED CONTROL UNIT. OPS CHECKS GOOD.SDR VNAA9812016Connector · dirtyDURING TAXI, THE LEFT HAND PROPELLER OVERSPEED TEST FAILED TO OPERATE WHEN SELECTED. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND CLEANED THE OVERSPEED GOVERNOR CANNON PLUG. MAINTENANCE THEN PERFORMED OPERATIONAL CHECKS IN ACCORDANCE WITH DOSDR RAIA981214Monopole · failedFLT 7633 - JFK - RIGHT ENGINE RPM FLUCTUATING. A/C DIVERTED TO BGM. MAINTENANCE REPLACED RIGHT ENGINE RPM MONOPOLE. (M)SDR MASA98224Switch · failedFLT 5331 - RDG-LNS - AFTER DEPARTURE, PILOT REPORTED THAT THE AUTOFEATHER DISABLE LIGHT ILLUMINATED AND THE RIGHT SIDE AUTOFEATHER WOULD NOT WORK. AIRCRAFT RETURNED TO RDG WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE HIGH PRESSURE SWITCH, OPS CHECKED GSDR CA981230016Control Cable · failed(CAN) PROPELLER CONTROL CABLE FOUND BROKEN AT THE END OF THE CABLE UNDER THE PEDESTAL.SDR VNAA9812008Pcu · failedDURING THE TAXI FOR TAKEOFF, THE LEFT HAND ENGINE WAS REPORTED TO HAVE AN UNCOMMANDED INCREASE IN RPM. ALSO, THE ENGINE WAS OVER TORQUED AND WAS SHUT DOWN BY THE CREW. THE AIRCRAFT THEN RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE LEFT HAND SDR CA981230038Switch · failed(CAN) AFTER TAKEOFF, THE LEFT HAND PROPELLER TENDED TO FEATHER. THE PILOT CONTROLLED THE FAILURE AND MADE AN EMERGENCY LANDING. INVESTIGATION REVEALED THE LOW PITCH SWITCH WAS NOT WORKING AND THERE WAS A WORN CARBON BRUSH IN THE MECHANISM.SDR SWIA971332Pcu · leakingLEFT OIL PRESSURE DROPPED BETWEEN 52 AND 45 PSI IN FLIGHT. RETURNED TO SLC. FOUND THE PCU TO BE LEAKING OIL. REMOVED AND REPLACED PCU. RAN THE LEFT ENG IAW MM 71-00-00 AND 61-00-00. OPS AND LEAK CHECK GOOD.SDR QXEA9802105Conditioner · malfunctionedMWH - DURING CLIMB-OUT OF MWH, NR 2 ENGINE EXPERIENCED A UNCOMMANDED AUTOFEATHER. FLIGHT CREW SECURED THE ENGINE. AIRCRAFT RETURNED TO MWH WITHOUT INCIDENT. MAINTENANCE REPLACED THE TORQUE SIGNAL CONDITIONER, NR 2 PROPELLER (FOR OVERTORQUE INSPECTION), AND SDR VNAA9811025Pcu · 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. OPERATIONAL CHECKS WERSDR VNAA9811021Pcu · failedTHE RIGHT HAND PROPELLER FAILED TO COME OUT OF THE FEATHER POSITION, WHEN SELECTED. DURING THE ATTEMPT TO GET THE PROPELLER OUT OF FEATHER, THE RIGHT ENGINE WAS OVER TORQUED. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND COMPLIED WITH A OVER SDR 98ZZZX4569Propeller Cable · mismanufacturedNEW CABLES BEING USED TO REPLACE OLD LEFT PROPELLER COATED CABLES WHEN ROUTED THROUGH AIRCRAFT FOR INSTALLATION ARE NEXT TO BEING LOCKED UP AND VERY HARD TO MOVE. HOWEVER, WHEN LAID FLAT ON THE FLOOR OR STRAIGHTENED OUT, THEY WORK FINE.SDR ASOA98098O-Ring · leakingEN ROUTE VLD-ATL - RIGHT ENGINE OIL PRESSURE BEGAN TO FLUCTUATE BETWEEN 45 AND 60 PSI. CREW REDUCED POWER AND THE OIL PRESSURE SETTLED AT 55 PSI. CREW DECLARED AN EMEGENCY AND DIVERTED TO MCN, WHERE LANDING WAS MADE SAFELY AND WITHOUT FURTHER INCIDENT. MCN SDR COMA9810268Pcu · failedAFTER TAKEOFF, NR 2 ENGINE NP VARIED FROM 98 TO 102.2 PERCENT. REPLACED PROPELLER CONTROL UNIT.SDR COMA9810264Pcu · malfunctionRIGHT HAND NP VARIED BETWEEN 98 AND 102 PERCENT. REPLACED THE RIGHT HAND PROPELLER CONTROL UNIT.SDR SI3R98015Pump · damagedDISSASSEMBLY OF GEAR CASE REVEALED OIL PUMP (P/N 775798-1) WITH BROKEN OFF INPUT SHAFT. ALSO, SPRAY BAR BROKEN FORWARD RIGHT IDLER ROLLER BEARING SPALLED (S/N 10, P/N 775760-2). HSS SO NR 208555 SO CUST: BUSINESS EXPRESS A/L. (X)SDR 99ZZZM18Switch · out of adjustFLT 6187 - IAD-SCE - DURING CLIMB, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO BETA HORN WARNING SOUNDED. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND CLEANED AND ADJUSTED RIGHT POWER LEVERS FOR RT BETA MICROSWITCH, OPS CHECKSDR 98ZZZX4503Cable · chafedTHE PROPELLER GOVERNOR CONTROL WAS CHAFED INTO CABLE THROUGH CONDUIT AT BRACKET ATTACHMENT JUST AFT OF GOVERNOR.SDR RAIA981109Pitch Control · failedFLT 7154 - STL - RIGHT ENGINE TORQUE FLUCTUATING IN FLIGHT. MAINTENANCE REPLACED PITCH CONTROL UNIT ON RIGHT ENGINE. (M)SDR 99ZZZX172Fork · crackedFORK HAS CRACKS EXTENDING AROUND CORNER IN 2 OPPOSING SLOTS.SDR 99ZZZX171Rod · crackedROD HAS A LINEAR INDICATION APPROXIMATLEY 1.75 INCHES LONG.SDR VNAA9811005Seal · leakingOIL WAS NOTED TO BE COMING OUT OF THE RIGHT HAND ENGINE DRAIN, DURING THE TAXI OUT FOR TAKEOFF. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE RIGHT HAND PROPELLER CONTROL UNIT O-RING SEALS, IN ACCORDANCE WITH DORNIER MAINTENANCE MSDR CA981109004Control Cable · sheared(CAN) DURING PRE-FLIGHT, PILOT NOTED PROP LEVER WAS TOO LOOSE AND THE PROP DID NOT RESPOND. AIRCRAFT SHUT DOWN. INSPECTION FOUND THE PROP CABLE AT THE CONTROL COLUMN LEVER, THE CABLE STRANDS WERE ALL BROKEN. BREAK AT END WHERE CABLE IS SWAGED ON TO CABLE ESDR SIMA983005Pcu · malfunctionedDFW - FLT 3793 - AFTER TAKEOFF, AT 7500 FEET AGL AND PROPS SET TO 1270 RPM, THE RIGHT ENGINE PROP RPM AND TORQUE STARTED TO FLUCTUATE. THE AIRCRAFT STARTED TO YAW AND THE PROP WOULD NOT RESPOND TO CONDITION LEVER MOVEMENT. THE ENGINE WAS SHUTDOWN. THE MAX PSDR SIMA982961Pcu · malfunctionedMAF - FLT 3814 - DURING AUTOCOARSEN CHECK, THE RIGHT PROPELLER FEATHERED UNCOMMANDED. UNABLE TO UNFEATHER. REMOVED AND REPLACED THE RIGHT PCU. LEAK AND OPERATIONAL CHECKS GOOD. (M)SDR VNAA9810015Control Unit · failedTHE FLIGHT RETURNED TO THE GATE DUE TO THE RIGHT HAND PROPELLER FAILING TO COME OUT OF FEATHER POSITION. MAINTENANCE WAS DISPATCHED FROM PIT WITH PARTS TO REPAIR THE AIRCRAFT. MAINTENANCE INSPECTED AND REPLACED THE RIGHT HAND PROPELLER CONTROL UNIT, IN ACCORSDR VNAA9810014Switch · failedA LEFT HAND PROPELLER LOW OIL PRESSURE WARNING MESSAGE ILLUMINATED, DURING THE TAXI PRIOR TO TAKEOFF. THE AIRCRAFT RETURNED TO THE GATE. PSA MAINTENANCE WAS DISPATCHED FROM PIT TO REPAIR THE AIRCRAFT. MAINTENANCE INSPECTED AND REPLACED THE LEFT HAND PROPELLSDR 98ZZZX4046Screw · crackedEIGHT OF FOURTEEN CYLINDER HOLD-DOWN SCREWS FAILED. THREE WERE FOUND WITH HEADS SEPARATED FROM THEIR SHANKS. FIVE OTHERS WERE CRACKED IN FIRST THREAD BENEATH THE HEAD. ALL FAILED UNITS HAVE BEEN FORWARDED TO MCCAULEY FOR ANALYSIS.SDR VNAA9810009Connector · dirtyTHE RIGHT HAND PROPELLER OVERSPEED TEST FAILED TO OPERATE WHEN SELECTED, DURING THE TAXI PRIOR TO TAKEOFF. THE AIRCRAFT RETURNED TO THE GATE. OUTSTATION MAINTENANCE INSPECTED AND CLEANED THE RIGHT HAND PROPELLER OVERSPEED GOVERNOR CANNON PLUG, IN ACCORDANCE SDR VNAA9810003Pcu · failedTHE LEFT PROPELLER FAILED TO UNFEATHER WHEN SELECTED, DURING THE PUSHBACK FOR DEPARTURE. THE AIRCRAFT WAS RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE LEFT PROPELLER CONTROL UNIT, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 61-21-06. OPERASDR CA981028010Support · misinstalled(CAN) THE TWO CENTER HOLE BOSSES OF THE PRESSURE MANIFOLD SUPPORT PLATE ARE CHAFING AGAINST THE INNER SIDE OF THE PROPELLER PRESSURE MANIFOLD DUE TO THE CLOSE TOLERANCE BETWEEN THE TWO PARTS. SUBMITTER STATED RAYTHEON HAS BEEN ADVISED OF THIS CONDITION AND ARSDR VNAA9810001Pcu · failedDURING TAXI, THE LEFT PROPELLER WHEN SELECTED, WOULD NOT COME OUT OF FEATHER. THE CREW ATTEMPTED A SECOND TIME TO UNFEATHER THE PROPELLER. THE PROPELLER UNFEATHERED, BUT WITH AN RPM AND TORQUE SURGE. THE TORQUE SURGE WAS LARGE ENOUGH TO OVER TORQUE THE PROPSDR 98ZZZM811Sensor Orifice · failedWHILE EN ROUTE FROM JAN TO CVG, THE LEFT ENGINE INDICATED LOW OIL PRESSURE AND THE OIL PRESSURE LIGHT CAME ON. THE PILOT DECLARED AN EMERGENCY AND SHUT DOWN THE LEFT ENGINE. THE AIRCRAFT DIVERTED TO BWG AND LANDED SINGLE ENGINE WITHOUT ANY FURTHER INCIDENT. SDR QXEA9801370Tseu · malfunctionBOI- AFTER TAKEOFF, THE AUTOFEATHER ARM LIGHT ILLUMINATED. CHECKED AGAIN AFTER LANDING AND THE AUTOFEATHER WILL NOT ARM. REPLACED THE NR 2 TORQUE SIGINAL CONDITIONER (TSEU). OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.SDR CA981006009Shaft · broken(CAN) THE PROPELLER WAS RECEIVED WITH A BROKEN COUNTERWEIGHT SHAFT. THE SHAFT BROKE BETWEEN THE THREADED SECTION AND THE GRIP (POINT OF TRANSITION).SDR S9BA9808Control Cable · corrodedWHILE PERFORMING NON-ROUTINE MAINTENANCE, MAINTENANCE CREW FOUND THE RT PROPELLER CONTROL LEVER NOT LOCKING IN AFT DETENT. ON FURTHER INVESTIGATION, FOUND THE PROPELLER CONTROL CABLE IN THE RT LEADING EDGE WAS CORRODED AND HAD FAILED. THE CABLE WAS REPLACED SDR UF6A980815Pcu · malfunctionedORD - FLT 5756 - ON TAKEOFF, PROP NR 1 CWP ILLUMINATED ALONG WITH RED LOW PITCH. MAINTENANCE REMOVED AND REPLACED NR 1 ENGINE PCU. PERFORMED HIGH SPEED TAXI. ALL SYSTEMS OPS CHECKED GOOD. (M)SDR VNAA9808028Wire · brokenDURING THE TAXI FOR TAKEOFF, THE RIGHT HAND PROPELLER OVERSPEED TEST FAILED TO OPERATE WHEN SELECTED. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPAIRED BROKEN WIRES AT THE OVERSPEED GOVERNOR CANNON PLUG CONNECTOR, IN ACCORDANCE WITH DORNISDR C2XA98IA319Block Unit · failedIAH - DURING FLIGHT 3992, THE PILOT REPORTED THE NR 2 PROP FEATHERED, UNCOMMANDED, IN FLIGHT. THE AIRCRAFT RETURNED AND LANDED AT IAH WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE BETA BLOCK ASSEMBLY. SUBSEQUENTLY, THE PROPELLER ASSY, AND GOVERNOR SDR RAIA980815Monopole · failedFLT 7054 - STL - LEFT SRL CAPTION ILLUMINATED ON TAKEOFF ROLL. MAINTENANCE REPLACED LEFT ENGINE PROPELLER GOVERNOR MONOPOLE. (M)SDR COMA9810186Pcu · out of adjustRIGHT HAND ENGINE NP WAS 102 PERCENT DURING CLIMB. ADJUSTED THE PROPELLER CONTROL UNIT.
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