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 97ZZZX3945Bracket · chafedNR 2 CYLINDER REMOVED FOR LOW COMPRESSION. THIS EXPOSED LEFT REAR MOUNT. IT WAS FOUND TO HAVE WEAR IN IT CAUSED BY PROPELLER CONTROL CABLE HOUSING CHAFING AGAINST IT. THE DAMAGE WAS CLOSE TO THE CUT-OUT FOR THE BARREL NUT, SO TCM RECOMMENDED CHANGING MOUNT.SDR QXEA9700521Switch Light · malfunctionSEA- AUTO FEATHER WOULD NOT SELECT WHEN THE BUTTON WAS DEPRESSED. THIS OCCURRED DURING THE BEFORE TAKEOFF CHECKLIST. REPLACED AUTO FEATHER SWITCH LIGHT ASSY, OPERATIONAL CHECKS GOOD.SDR QXEA9700516Switch · malfunctionSEA- AUTO FEATHER FAILED TO ARM ON TAKEOFF. ABORTED TAKEOFF AND RETURNED TO GATE. SWAPPED TORQUE SIGNAL CONDITIONERS, CONFIRMED LAYSHAFT SWITCHES. CHECKED RELAYS 6121-K3, K4 AND K5, NO DEFECTS FOUND. REPLACED NR 1 AUTO FEATHER TEST SWITCH, OPERATIONAL CHECSDR QXEA9700495Wire Harness · failedNUMBER 2 ALTERNATE FEATHER PUMP FAILS TO TEST ON THE 24 HOUR AUTO FEATHER CHECK. REPLACED THE HARNESS FROM THE TORQUE SIGNAL CONDITIONER TO THE FIRE WALL HARNESS, OPERATIONAL CHECK GOOD.SDR 97ZZZX4834Terminal · separatedAIRCRAFT DEPARTED ANC FOR FAI. CLLIMBING OUT OF 8,000 FEET, NR 2 PROPELLER AUTOFEATHERED. FLIGHT CREW SECURED NR 2 ENGINE AND RETURNED TO ANC. LANDING WAS NORMAL. MAINTENANCE FOUND PUSH/PULL TERMINAL AT FORWARD END OF PROPELLER REVERSING CONTROL HAD SEPARASDR QXEA9700466Relay · failedPSC - 24 HOUR SYSTEM CHECK NR 1 ENGINE FAILS AUTO FEATHER CHECK. REPLACED 2161 K3 RELAY. COMPLIED WITH AUTO FEATHER AND POWER UPTRIM. OPERATIONAL CHECK GOOD.SDR NVEA9700009Actuator · leakingACY - FLT 4949 - RIGHT ENGINE LOW OIL PRESSURE WITH MASTER CAUTION. CREW SHUT RIGHT ENGINE ADN LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND AND REPLACED PROP ACTUATOR, SUSPECTED LEAKING INTERNALLY. ALSO, REPLACED OIL TRANSFER TUBE O-RINGS. HAMSTANDARSDR VTZA97432Monopole Pick Up · failedIAD/CMH - FLT 6286 - DURING CLIMB AT 0855 HOURS ON 8-3-97, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO RT ENGINE RPM FLUCTUATION. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. AIRCRAFT WAS FERIRED TO LYH TO HAVE MAINTENANCE INSPECTION DONE ON RT ENGINESDR RAIA970801Monopole · failedFLT 7370 - STL - RIGHT SRL CAPTION ILLUMINATED ON TAKEOFF ROLL. MAINTENANCE REPLACED RIGHT PROPELLER GOVERNOR MONOPOLE. (M)SDR UF6A970801Prop Control · malfunctionedORD - FLT 5700 - LEFT PROP DID NOT FULLY FEATHER WHEN ENGINE WAS SHUTDOWN. MAINTENANCE INSPECTED AND PERFORMED OPS CHECK. SYSTEM CHECKED GOOD. (M)SDR SRAA970802Valve · malfunctionedDURING FLIGHT APPROX 50 MILES FROM DESTINATION, NR 4 ENGINE DROPPED TO 97 PERCENT, THEN PROP LOW OIL LIGHT CAME ON. SHUT DOWN NR 4 ENGINE AS PRECAUTIONARY AND LANDED WITHOUT INCIDENT. SUSPECT DEFECTIVE VALVE HOUSING. REPLACED BOTH VALVE HOUSING AND PUMP HOUSDR REXA97219Pitch Trim · out of adjustCONFIG WARNING AT V1 ROTATION. FOUND PITCH TRIM SET TO LOW CHECKED GOOD. (M)SDR PLGA970801APcu · out of adjustJFK - FLT 4633 - WHILE PULLING INTO POSITION FOR TAKEOFF, THE CREW NOTICED THE RIGHT PROP RPM WAS BETWEEN 1150 AND 1200 AT GROUND IDLE AND 1080 AT FLIGHT IDLE. AIRCRAFT RETURNED TO THE GATE AND MAINTENANCE RIGGED THE RIGHT PCU. GROUND RAN GOOD. AIRCRAFT RETSDR 97ZZZX3710Control Cable · misconnectedWHILE RELOCATING THIS AIRCRAFT FOLLOWING AN ANNUAL INSPECTION, THE AIRCRAFT WAS TAXIED TO THE RUN-UP AREA FOR A RUN-UP. PILOT NOTICED PROPELLER CONTROL WAS VERY SENSITIVE AND COULD ONLY GET 1,900 RPM MAX FROM THE ENGINE. AFTER SHUTTING DOWN AND REMOVING ENGISDR 97ZZZX3476Support · crackedDURING REMOVAL FOR OIL PUMP AD COMPLIANCE, FOUND TWO OF THE THREE SUPPORT FINGERS CONNECTING THE PROPELLER GOVERNOR CONTROL CABLE CRACKED AT THE THREE-FINGER JUNCTION WELD, AND THE CABLE WAS SUPPORTED BY ONE FINGER. FAILURE OF THAT FINGER WOULD CAUSE LOSS OF SDR UF6A970712Prop Control · malfunctionedORD - FLT 5755 - THE LEFT PROPELLER DID NOT FULLY FEATHER ON ENGINE SHUTDOWN. MAINTENANCE INSPECTED AND PERFORMED OPS CHECK. (M)SDR 97ZZZM790Seal · wornNR 3 ENGINE PROP OVERSPEED PROP PITCH LOCKED. SHUTDOWN NR 3 ENGINE WHEN RPM DECREASED TO 13,600. RESEALED NR 3 PROP RESERVOIR, OPERATED AND LEAK CHECKED NORMAL ON GROUND RUN.SDR COMA9710337Prop Control · malfunctionedRECEIVED AURAL WARNING AUTO FEATHER DURING TAKE OFF. COULD NOT DUPLICATE DISCREPANCY. AIRCRAFT RETURNED TO SERVICE.SDR WTAA970136Switch · dirtyMRY - LEFT PROPELLER WENT TO FEATHER WHEN SETTING TAKEOFF POWER. TAKEOFF ABORTED MAINTENANCE CLEANED AUTO FEATHER MICROSWITCH. PERFORMED ENGINE RUN. UNABLE TO DUPLICATE DISCREPANCY. AIRCRAFT RETURNED TO SERVICE. (M)SDR 97ZZZX3444Feedback Block · wornDURING ANNUAL INSPECTION, FOUND CARBON 'BETA' FEEDBACK BLOCK SEVERELY WORN. THIS HAD CAUSED DAMAGE TO FEEDBACK RING AS WELL. THIS OCCURRED DUE TO BLOCK NOT MOVING FREELY IN ARM. (LACK OF LUBRICATION). AIRCRAFT HAD NOT BEEN INSPECTED FOR 160 HOURS. NORMAL SDR PLGA970717AComputer · malfunctionedMHT - FLT 4532 - AUTOCOARSEN LIGHT ILLUMINATED ON TAKEOFF ROLL. TAKEOFF WAS ABORTED AND AIRCRAFT RETURNED TO THE GATE. MAINTENANCE REPLACED AUTOCOARSEN COMPUTER AND SYSTEM TESTED GOOD. (X)SDR COMA9710333Pcu · damagedPCU ASSEMBLY REMOVED FROM AIRCRAFT FOR AD 95-22-12 COMPLIANCE. UPON INITIAL RECEIVING INSPECTION SEVERAL OF THE FORWARD PORTION OF THE SPLINES WERE FOUND TO BE GROUND DOWN. PCU WAS REMOVED FROM SERVICE AND RETURNED TO MANUFACTURER FOR FURTHER DISPOSITON.SDR CA970722007Pressure Switch · failed(CAN) DURING PREFLIGHT RUN UP THE CREW COULD NOT ARM THE AUTOFEATHER CIRCUIT. THE SYSTEM WAS TURNED OFF. THE PRESSURE SWITCH ON THE RIGHT HAND ENGINE HAD FAILED.SDR VTZA97379Prop Governor · wornIAD/EWR - FLT 6350 - DURING TAKEOFF AT 1300 HOURS ON 7-8-97, ABORTED TAKEOFF DUE TO LT SRL LIGHT ILLUMINATED ON TAKEOFF ROLL. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI 49230, MEL 76-1. MAINTENANCE CLOSED DMI 492SDR 97ZZZX3527Wire · shortedANC - FLT 80 - RETURNED AT 1755Z DUE TO NR 1 PROPELLER LOST MANUAL CONTROL AND SYNC BREAKER TRIPPED. MAINTENANCE REPAIRED SHORTED 1023 WIRE AND REPLACED SYNC BOX. OVERWEIGHT LANDING INSPECTION COMPLETED AND AIRCRAFT RETURNED TO SERVICE. (X)SDR 97ZZZX3363Low Press Switch · failedLEFT AUTOFEATHER WILL NOT TEST. INVESTIGATION FOUND LOW PRESSURE SWITCH FAILED.SDR GLBA97098Py Tube · failedRIGHT ENGINE STOPPED RESPONDNG TO THROTTLE MOVEMENT 15 MINUTES INTO FLIGHT. RPM AND ITT BEGAN TO DECREASE. AIRCRAFT LANDED WITHOUT INCIDENT. REPLACED 'PY' LINE TO PROP GOVERNOR AND RIGHT PRIMARY PROP GOV. (M)SDR REXA97180P3 Switches · failedAUTOCOARSEN CWP LIGHT ON TAKEOFF ROLL RESET DURING TAXI. REMOVED AND REPLACED BOTH LEFT AND RIGHT P3 SWITCHES, GROUND RUNS CHECKS GOOD. REF: OPERATOR CONTROL NR 97ZZZX3375. (X)SDR 97ZZZX3375P3 Switches · failedAUTOCOARSEN CWP LIGHT ON TAKEOFF ROLL RESET DURING TAXI. REMOVED AND REPLACED BOTH LEFT AND RIGHT P3 SWITCHES, GROUND RUNS CHECKS GOOD. REF: OPERATOR CONTROL NR REXA97180.SDR WTAA970114Pcu · failedBFL - LEFT PROPELLER DOES NOT COME OUT OF FEATHER. TAKEOFF ABORTED. MAINTENANCE REPLACED LEFT ENGINE PROPELLER CONTROL UNIT. NO LEAKS NOTED. OPERATIONAL CHECK SATISFACTORY. AIRCRAFT RETURNED TO SERVICE. (X)SDR UF6A970610Pcu · out of adjustORD - FLT 5774 - ON SHUTDOWN LEFT PROP FAILED TO FEATHER. MAINTENANCE CLOCKED PCU ON NR 1 ENGINE. SYSTEM OPS CHECKED GOOD. (M)SDR RAIA970628Monopole · failedSTL - FLT 7034 - RIGHT SRL LIGHT ILLUMINATED ON TAKEOFF ROLL. MAINTENANCE REPLACED RIGHT PROPELLER GOVERNOR MONOPLE. (X)SDR COMA9710318Pcu · malfunctionAFTER TAKEOFF, THE RT ENGINE NP WENT TO 102.3 PERCENT. REPLACED THE RT PROPELLER CONTROL UNIT.SDR REXA97165Auto Coarsen · malfunctionedAUTO COARSEN CWP ON DURING TAKEOFF. HAD PILOT PERFORM P3 TEST. AUTO COARSEN PASSED TEST. (M)SDR REXA97164Auto Coarsen · malfunctionedAUTO COARSEN LIGHT ON DURING TAKEOFF. PERFORMED P3 TEST AND ALL OPS CHECKED GOOD. (M)SDR REXA97156Autocoarsen · failedFAILED AUTOCOARSEN P-3 CHECK. RETURNED TO BLOCK, TRIED AGAIN. GOOD AFTER SECOND ATTEMPT. (X)SDR UF6A970505Prop Feather Sys · malfunctionedORD - FLT 5705 - ON SHUT DOWN, NR 2 PROPELLER DID NOT FEATHER. MAINTENANCE INSPECTED. SYSTEM OPS CHECKED GOOD. (X)SDR UF6A970504Prop Feather Sys · malfunctionedORD - FLT 5717 - NR 1 ENGINE WOULD NOT FEATHER ON SHUT DOWN. MAINTENANCE INSPECTED. SYSTEM OPS CHECKED GOOD. (X)SDR SRAA970516Valve Housing · defectiveDURING FLIGHT 527 FROM LERT TO LEMO, NR 4 PROPELLER RPM DECAYED TO 975, SHUT DOWN ENGINE AS PRECAUTIONARY AND LANDED WITHOUT INCIDENT. FOUND NR 4 PROPELLER VALVE HOUSING DEFECTIVE, REPLACED VALVE HOUSING IAW SAT J/C'S 6101, 6101-1, AND PERFORMED ENGINE RUN PESDR MASA97032Prop Controls · out of adjustAIRCRAFT WAS FLYING PART 91 FROM BFD/PIT TO PICK UP A CREW MEMBER. AFTER DEPARTURE FROM BFD AT APPROXIMATELY 300 FEET, THE RT PROPELLER BEGAN TO FEATHER. THE CREW RETURNED TO THE FIELD AND THE PROP WAS FULLY FEATHERED BY THE TIME THE AIRCRAFT TOUCHED DOWN. TSDR 97ZZZM711Prop Control · malfunctionedATL-CRW - NR 2 PROP FEATHERED IN FLIGHT DURING DESCENT, TORQUE NOTED AT 80 PERCENT WHILE PROP WAS FEATHERED. PROP UNFEATHERED BY ITSELF ON APPROACH, PRIOR TO LANDING. ATL MAINTENANCE WAS DISPATCHED AND REPLACED THE TSCU AND THE TORQUE PROBE. MCN MAINTENANCESDR REXA97152Computer · failedAUTO COARSEN COMPUTER FAILED DURING INITIAL TAKEOFF ROLL. REMOVED AND REPLACED LEFT PSI SWITCH AND AUTO COARSEN COMPUTER. (M)SDR PLGA970511ANp Sensor · failedBOS - FLT 4550 - WHILE AT CRUISE, THE LEFT PROP RPM STARTED A FLUCTUATION WHILE ALL OTHER ENGINE INDICATIONS REMAINED NORMAL. FLUCTUATIONS STOPPED AFTER ABOUT ONE MINUTE. AGAIN ON FINAL THE FLUCTUATIONS STARTED. UPON LANDING THE LEFT ENGINE SURGED AND THE CSDR UF6A970503Relay · failedORD - FLT 5739 - ON TAKEOFF ROLL, AUTOFEATHER WOULD NOT ARM, BOTH AFU AND EEC ON RIGHT ENGINE. MAINTENANCE REMOVED AND REPLACED AOG RELAY MU-17. PERFORMED O/C OF NR 2 AFU AND EEC. SYSTEM OPS CHECKED GOOD. (X)SDR PLGA970510AAutocoarsen · malfunctionedPWM - FLT 4577 - DURING TAKEOFF ROLL, THE AUTO COARSEN LIGHT DID NOT ARM. TAKEOFF WAS ABORTED AND AIRCRAFT RETURNED TO THE GATE. MAINTENANCE GROUND RAN AIRCRAFT AND REPORTED SYSTEM TESTED GOOD. AIRCRAFT RETURNED TO SERVICE. (M)SDR UF6A970502Connector · looseGRB - FLT 5732 - RIGHT AUTOFEATHER DID NOT ARM. MAINTENANCE CLEANED AND INSPECTED AFU CANNON PLUG. SYSTEM OPS CHECK GOOD. (X)SDR RAIA970503Monopole · failedSTL - FLT 7456 - LEFT SRL CAPTION ILLUMINATED AND STAYED ON DURING TAKEOFF ROLL. MAINTENANCE REPLACED LEFT ENGINE PROPELLER GOVERNOR MONOPOLE. (X)SDR COMA9710231Pcu · failedDURING CLIMBOUT, THE RIGHT PROPELLER RPM SURGED BETWEEN 99 TO 101 PERCENT, AIRCRAFT RETURNED TO THE FIELD. REPLACED THE RIGHT ENGINE PROPELLER PITCH CONTROL UNIT.SDR REXA97115Autocoarsen · malfunctionedAUTOCOARSEN PROBLEM ON FINAL INTO PNS. ENGINE FEATHERED. MECHANIC DID GROUND RUNS AND FOUND NO FAULT WITH SYSTEM OPERATION. (X)SDR PLGA970424AFail Light · illuminatedLGA - FLT 4765 - DURING TAKEOFF, THE AUTOCOARSEN FAIL LIGHT ILLUMINATED. TAKEOFF WAS ABORTED AND AIRCRAFT RETURNED TO THE GATE. MAINTENANCE PERFORMED GROUND RUNS WITH NO PROBLEMS FOUND. AIRCRAFT RETURNED TO SERVICE. (M)
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