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 COMA9610295Actuator · leakingRT ENGINE NACELLE, WING AND PROPELLER ARE COVERED WITH OIL. REPLACED THE PROPELLER ACTUATOR ASSY.SDR 96ZZZM1520Beta Cable · bindingJUST AFTER TAKEOFF FROM GALLUP, LEFT ENGINE LOST POWER. RETURNED TO GATE. MAINTENANCE FOUND LEFT BETA CABLE BOUND UP AND CAUSED BETA VALVE TO COME OUT OF RIG. REPLACED BETA CABLE AND RIGGED. (M)SDR CA970124003Control Cable · broken(CAN) CABLE BROKE WHERE IT ATTACHES TO THE BELLCRANK ASSEMBLY UNDER THE PEDESTAL. CABLE BROKE AT THE SWAGE INSIDE THE TELESCOPING TUBES. SUBMITTER STATES CABLE INSPECTION IS DIFFICULT AT THIS LOCATION. PILOTS REPORTED ROUGHNESS IN THE CONTROL FOLLOWED BY THE FSDR GLBA96195Beta Cables · out of adjustORD - RIGHT PROP SURGES IN AND OUT OF FEATHER WHEN POWER IS INCREASED IN FLIGHT. MAINTENANCE ADJUSTED BETA CABLE AND OPERATION CHECKS NORMAL. (M)SDR COMA9610292Circuit Breaker · failedNR 2 FLIGHT IDLE STOP CB POPPED. REPLACED NR 2 FLIGHT IDLE STOP CIRCUIT BREAKER.SDR SRAA960917Valve Housing · failedDURING FLIGHT SJ9404 FROM CHS TO HOW, NR 1 ENGINE RPM FLUXED AND DECAYING STEADILY WITH ENGINE TORQUE, TIT, AND FUEL FLOW INDICATIONS FOLLOWING. SHUT DOWN NR 1 ENGINE AND LANDED WITHOUT INCIDENT AT HOW. INSPECTED NR 1 ENGINE INTAKE AND EXHAUST, NO DEFECTS FOSDR PLGA9610161Switch · out of positionMHT - FLT 4889 - AIRCRAFT DIVERTED TO MHT FOLLOWING SEVERAL POWER INTERRUPTIONS AND EVENTUAL FLAME OUT. INVESTIGATION INTO THE INCIDENT FOUND THE CAUSE OF THE EVENT TO BE IMPROPER SELECTION OF THE AUTOCOARSEN SYSTEM SWITCH. (M)SDR ASOA96041Pcu · leakingEN ROUTE AGS-ATL - THE LEFT ENGINE OIL PRESSURE BEGAN FLUCTUATING FROM 53 TO 65 PSID AND GOT ASSOCIATED MAP AND AURAL WARNINGS. THE CREW DECLARED AN EMERGENCY AND DIVERTED INTO MCN WHERE LANDING WAS MADE SAFELY AND WITHOUT INCIDENT. FOUND OIL LEAK ON PCU MATSDR PCAA9600314Prop Actuator · failedNR 2 ENG OIL PRESSURE LOW, SHUT DOWN ENGINE IN FLIGHT. INSPECTED AND FOUND ENGINE PRESSURIZING PROPELLER HUB CAUSING LEAK OUT OF BLADE SEAL. REMOVED ACTUATOR, REPLACED SEALS, REPLACED ACTUATOR. REPLACED 4 BLADE SEALS. LOW OIL PRESSURE INSPECTION PERFORMED SDR COMA9610289Seals · wornLEFT PROPELLER IS SLOW TO FEATHER OR UNFEATHER. REPLACED PROPELLER TRANSFER TUBE SEALS.SDR VTZA96387Monopole · failedFLT 6592 - IAD-AVP - DURING CLIMB, MADE A UNSCHEDULED LANDING DUE TO LEFT EGT FLUCTUATES OF 20 PERCENT, NO FLUCTUATION WITH SRL OFF. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENT. MANTENANCE OPENED DMI 07255, MEL 77-2 ON SRL, MAINTENANCE CLOSED DMI 0725SDR COMA9630146Connector · dirtyAUTO COARSEN FAULT WARNING DURING TAKEOFF. CLEANED WIRING CONNECTORS AT AUTO COARSEN P3 SENSORS, SYSTEM TEST NORMAL.SDR CA961007019Prop Actuator · leaking oil(CAN) THIRTY MINUTES AFTER TAKEOFF THE FLIGHT CREW NOTICED LOW OIL PRESSURE CAUTION LIGHT ON #2 ENGINE. A PRECAUTIONARY SHUTDOWN WAS CARRIED OUT. FLUID LOSS WAS EVIDENT ON THE STARBOARD NACELLE. POST FLIGHT INVESTIGATION DETERMINED THE #2 PROPELLER ACTUATOR WASDR COMA9610277Relay · failedAUTOFEATHER AURAL WARNING SOUNDED DURING TAKEOFF. REPLACED RELAY K0039.SDR UF6A960903Pcu · faultyORD - FLT 5755 - ON SHUTDOWN, NR 1 ENGINE WILL NOT FEATHER. MAINTENANCE PERFORMED OPERATIONAL TEST OF NR 1 PROP. SYSTEM OPS CHECKED GOOD. (M)SDR UF6A960902Pcu · faultySBN - FLT 5752 - ON SHUTDOWN, NR 1 ENGINE WILL NOT FEATHER. MAINTENANCE PERFORMED OPERATIONAL TEST OF NR 1 PROP. SYSTEM OPS CHECKED GOOD. (M)SDR UF6A960901Pcu · faultyORD - FLT 5700 - ON SHUTDOWN, NR 1 ENGINE WILL NOT FEATHER. MAINTENANCE PERFORMED OPERATIONAL TEST OF NR 1 PROP. SYSTEM OPS CHECKED GOOD. (M)SDR CA960927008Clamp · cracked(CAN) PILOT REPORTED A SLIGHT FLUCTUATION OF TORQUE AND FUEL FLOW. DURING TROUBLESHOOTING A PIECE OF A SPECIAL BOLT WAS FOUND IN THE LOWER COWLING. FURTHER INVESTIGATION REVEALED THIS PIECE WAS PART OF A CLAMP FROM THE PROPELLER REVERSING INTERCONNECT LINKAGE SDR UF6A960811Autofeather · malfunctionedYNG - 5709 - NR 2 PROP FEATHERED ON LANDING ROLL. UP TRIM OCCURRED. MAINTENANCE PERFORMED AUTOFEATHER TEST. SYSTEM OPS CHECKED GOOD. (M)SDR UF6A960810Autofeather Unit · faultySBN - FLT 5760 - ON TAKEOFF, LEFT ENGINE UPPER FEATHER LIGHT DID NOT ARM. MAINTENANCE REMOVED AND REPLACED NR 1 AUTOFEATHER UNIT, SYSTEM OPS CHECKED GOOD. (M)SDR COMA9630141Computer · malfunctionAUTO COARSEN WARNING ILLUMINATED DURING TAKEOFF. REPLACED THE AUTO COARSEN COMPUTER.SDR UF6A960807Pcu · faultyORD - FLT 5733 - NR 1 PROP DOES NOT FEATHER ON SHUTDOWN. MAINTENANCE PERFORMED OPERATIONAL TEST OF NR 1 PROP, SYSTEM CHECK GOOD. (M)SDR COMA9610245Pcu · leakingLEFT ENGINE LOW OIL PRESSURE WARNING DURING TAKEOFF. OIL LEAKING FROM LEFT NACELLE.SDR UF6A960804Pcu · faultyORD - FLT 5734 - NR 1 PROP DID NOT FEATHER ON SHUTDOWN. MAINTENANCE PERFORMED OPERATIONAL TEST OF NR 1 PROP, SYSTEM CHECK GOOD. (M)SDR UF6A960803Pcu · faultyORD - FLT 5702 - NR 1 PROP DID NOT FEATHER ON SHUTDOWN. MAINTENANCE PERFORMED OPERATIONAL TEST OF NR 1 PROP, SYSTEM CHECK GOOD. (M)SDR UF6A960802Pcu · faultyORD - FLT 5749 - NR 1 PROP DID NOT FEATHER ON SHUTDOWN. MAINTENANCE PERFORMED OPERATIONAL TEST OF NR 1 PROP. SYSTEM CHECK GOOD. (M)SDR GLBA96171Wire · brokenORD - ON TOUCHDOWN, RIGHT PROP DOES NOT GO INTO GROUND IDLE FROM FLIGHT IDLE. MAINTENANCE REPAIRED BROKEN WIRE ON RIGHT ENGINE LOW PITCH SOLENOID. (M)SDR COMA9610239Prop Governor · malfunctionedLT PROPELLER WILL NOT AUTO-FEATHER OR MANUAL FEATHER. COULD NOT DUPLICAE DISCREPANCY, SYSTEM TEST NORMAL AND ACFT RETURNED TO SERVICE.SDR COMA9630140Pcu · malfunctionDURING TAKEOFF AND LANDING THE MAX PROPELLER RPM IS 1380. REPLACED THE RT PROPELLER CONTROL UNIT.SDR CA960826042Valve Housing · cover cracked(CAN) DURING FLIGHT SMOKE BEGAN TO FILL THE CABIN. THE AIR CONDITIONING SYSTEM AND RH AC BUS WERE ISOLATED. FLIGHT CONTINUED TO DESTINATION. POST FLIGHT INSPECTION FOUND #3 PROPELLER VALVE HOUSING COVER WAS CRACKED AND LEAKING OIL. FRICTION ON SLIP RING GENERASDR CA960812009Valve Housing · cover cracked(CAN) DURING CRUISE SMOKE BEGAN FILLING THE CABIN. FLIGHT CONTINUED AND LANDED WITHOUT INCIDENT. MAINTENANCE INVESTIGATION FOUND #3 PROPELLER VALVE HOUSING COVER WAS CRACKED AND LEAKING OIL. FRICTION ON SLIP RINGS GENERATED SMOKE WHICH WAS INGESTED BY THE PRESSDR CA960712101Arm Assembly · bent(CAN) ON TAKEOFF THE #2 PROP RPM WAS OBSERVED TO BE DECREASING, TORQUE WAS INCREASING. THROTTLE WAS RETARDED AND PROPELLER WENT TO FEATHER. INVESTIGATION FOUND THE LOW PITCH ARM WAS BENT AND INTERFERING WITH THE PROXIMITY SWITCH AND CREATING A CONTINUOUS LOW PSDR AU961086Control Cable · separated(AUS) LT ENGINE CONSTANT SPEED UNIT (CSU) CONTROL CABLE SEPARATED FROM CSU AND RODEND AND BOLT ASSEMBLY MISSING - INVESTIGATION FOUND THAT MAINTENANCE HAD BEEN CARRIED OUT ON THE CSU PRIOR TO THE OCCURRENCE (CSU ADJUSTMENT)SDR UF6A960712Pcu · faultyORD - FLT 5710 - NR 1 PROP DID NOT FULLY FEATHER ON ENGINE SHUTDOWN. MAINTENANCE PERFORMED OPERATIONAL CHECK. SYSTEM OPS CHECK GOOD. (M)SDR AU961036Valve · worn(AUS) PROPELLER FEATHERING VALVE WORN IN ROLL PIN AREA OF THE REAR CLEVISSDR UF6A960710Pcu · faultyORD - FLT 5710 - NR 1 PROP DID NOT FULLY FEATHER ON ENGINE SHUTDOWN. MAINTENANCE PERFORMED OPERATIONAL CHECK, OPS CHECKED GOOD. (M)SDR BIER960034Diff Pres Cntrl · inoperativeMANIFOLD PRESSURE FOLLOWED PROPELLER PITCH ADJUSTMENT, MAXIMUM PRESSURE OK ON TAKEOFF, BUT DID NOT MAINTAIN CONSTANT MP IN-FLIGHT. FOUND DIFFERENTIAL PRESSURE CONTROLLER TO BE INOPERATIVE.SDR COMA9630137Over Speed Gov · malfunctionRT ENGINE PROPELLER OVER SPEED TEST FUNCTION IN INOP. REPLACED THE PROPELLER OVER SPEED GOVERNOR.SDR AU960987Switch · faulty(AUS) PROPELLER BETA PRESSURE SWITCH FAULTYSDR COMA9610221Seals · leakingTHE GROUND FEATHER TEST REQUIRED 11 SECONDS FOR PROP TO TRANSITION FROM FEATHER TO BETA RANGE. REPLACED THE LT PROPELLER TRANSFER TUBE OIL SEALS.SDR 97ZZZX2942Pin · shearedPIN THAT FITS IN CAM ASSEMBLY P/N 86558 SHEARED PREVENTING RT ENGINE FROM GOING INTO REVERSE CAUSING PROPELLER TO GO FULL PITCH FORWARD. AIRCRAFT VEERED TO THE LEFT ON LANDING, DEPARTED THE RUNWAY CAUSING SUBSTANTIAL DAMAGE.SDR VTZA96241Switch · out of adjustFLT NR 6228 - PHL-IAD - ABORTED THE TAKEOFF DUE TO THE RIGHT REVERSE CAP LIGHT REMAINING ILLUMINATED DURING THE TAKEOFF ROLL. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE OPENED DMI 42442 IAW MEL 61-2 ON THE REVERSE CAP SYSTEM. MAINTENANSDR AU960945Cover · oversize(AUS) PROPELLER CONSTANT SPEED UNIT (CSU) CONTROL SHAFT AND COVER LEAKING OIL - THE CSU WAS RETURNED TO THE OVERHAUL FACILITY WHEREIT WAS DISMANTLED - INSPECTION OF THE COVER BORE FOUND IT OVERSIZE BY 0.0762MM (0.003IN) - INSPECTION FOUND 22 OTHER COVERS IN SDR 96ZZZM1171Oil Press Tube · crackedWHILE EN ROUTE FROM HOT TO DFW, THE CAPTAIN NOTICED THAT THE OIL PRESSURE ON THE RIGHT ENGINE WAS DROPPING RAPIDLY. THE FLIGHT CREW THEN SHUTDOWN AND SECURED THAT ENGINE. THE AIRCRAFT THEN LANDED AT DFW WITHOUT FURTHER INCIDENT. ON INSPECTION, IT WAS FOUND SDR AU960943Nut · separated(AUS) PROPELLER CONSTANT SPEED UNIT (CSU) FLYWEIGHT PIN NUT SEPARATED -THE PIN SECURES THE FLYWEIGHT AND DISC TOGETHER (FLYWEIGHT ASSEMBLY PNO A20063) - THE PIN THEN MOVED OUT DUE TO CENTRIFUGAL FORCE CONTACTING THE INSIDE BODY AND WORE A GROOVE 0.794MM (0.031SDR COMA9610187Pcu · malfunctionLEFT ENGINE PROPELLER RPM WAS ONLY 98 PERCENT WHEN SET FOR MAX RPM. REPLACED THE LT PROPELLER CONTROL UNIT.SDR ASOA96023Rccb · failedIN CRUISE FLIGHT OAJ-ATL, CREW ENCOUNTERED AN ELECTRICAL SMELL COMING FROM THE CIRCUIT RELAY CONSOLE ON THE FIRST OFFICERS SIDE. CREW COMPLIED WITH THE POH PROVISIONS AND DIVERTED INTO FLO. ATL MECHANIC ISOLATED THE PROBLEM TO THE RIGHT PROP HEAT RCCB AND DESDR GLBA96131Solenoid · dirtySPI - ON LANDING, FLARE AIRCRAFT YAWED VIOLENTLY LEFT AS IF LEFT PROP HAD DROPPED INTO REVERSE. MX CLEANED AND ADJUSTED LOW PITCH SOLENOID. (M)SDR PCAA9600295Harness · failedBWI - FLT 3530 - ON CLIMB AFTER DEPARTING, EXPERIENCED AN UNCOMMANDED AUTOFEATHER OF THE NR 2 PROPELLER. ENGINE WAS SECURED AND AIRCRAFT RETURNED TO BWI WITHOUT INCIDENT. C/W UNSCHEDULED FEATHERING CHECKS AS OUTLINED IN PRATT & WHITNEY MM. REMOVED AND REPLASDR SRAA69604Valve Hsg · damagedON TAKEOFF ROLL OUT OF GAL NR 1 PROPELLER WENT TO 104 PERCENT RPM (PTICH LOCKED). NR 1 ENGINE WAS SHUT DOWN AND TAKEOFF ABORTED, AIRCRAFT RETURNED TO BLOCKS WITHOUT INCIDENT. FOUND NR 1 PROP VALVE HOUSING HAD METAL SHAVINGS. REPLACED NR 1 PROPELLER ASSEMBLY
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