JASC 6123
Service difficulty reports · 919
Reports filed under 6123 · Propeller Feathering/Reversing, 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 = '6123' 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 = '6123' 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 QXEA200300869Autofeather Sys · out of adjustPDX- ON FLIGHT 2092 ABORTED TAKEOFF DUE TO AUTOFEATHER FAILED TO ARM. RESET AUTOFEATHER ARMING POINTS. NO PARTS REPLACED. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.SDR QXEA200300868Warning System · malfunctionedEUG- ON FLIGHT 2276 ABORTED AUTOFEATHER TEST. CLEARED PEC FAULT IAW AMM TASK 61-20-36-070-801. NO PARTS REPLACED. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.SDR CA030723005Switch · misinstalled(CAN) NR 1 ENGINE, BETA BACK-UP SYSTEM, STEADY BLUE LIGHT ILLUMINATED IN CRUISE. FAULT FOUND TO BE KLIXON SPRING PN KX5, DRILLED MOUNTING HOLES NOT LINING UP WITH SWITCH KX511.SDR QXEA200300882Potentiometer · out of adjustPDX- ON FLIGHT 2147 AUTOFEATHER "ARM" LIGHT CAME ON DURING TAKEOFF AT 95 PERCENT TORQUE AND 70 KIAS. PERFORMED AUTOFEATHER ARMING POTENTIOMETER ADJUSTMENT TEST IAW RIGGING MANUAL 7-31. NO PARTS REPLACED. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.SDR QXEA200300843Mfc · out of adjustPDX- ON FLIGHT 2241, AUTOFEATHER DID NOT ARM ON TAKEOFF ROLL PRIOR TO 70 KNOTS. PERFORMED ENGINE RIG IAW MTC 9720022. ADJUSTED NR 1 ENGINE MFC 1/16 OF A TURN COUNTERCLOCKWISE. AUTOFEATHER SYSTEM CHECKS GOOD. NO PARTS REPLACED. OPERATIONAL CHECKS GOOD. AIRCRAFTSDR MTNA20032Propeller · malfunctionedIN FLIGHT FROM CRW TO LCK THE LEFT ENGINE AUTO-FEATHERED. AN EMERGENCY WAS DECLARED. THE AIRCRAFT LANDED UNEVENTFULLY AT LCK. THE CAUSE IS UNKNOWN AT THIS TIME.SDR 0303081Control Unit · shutdownON 03/08/03 AIRCRAFT N19XS ON FLT 4485 WAS ON APPROACH INTO TOL, WITHIN 5-10 SECONDS BEFORE TOUCHDOWN THE CREW EXPERIENCED AN UNCOMMANDED AUTOCOARSEN OF THE RT ENGINE. CREW CONTINUED LANDING THE AIRCRAFT. ONCE ON THE RUNWAY THE CREW SHUT DOWN THE RT ENGINE.SDR CA030305005Connector · cracked(CAN) CREW REPORTED THAT AUTOFEATHER DISABLE LIGHT WOULD ILLUMINATE DURING CLIMB AND DECENT PORTIONS OF FLIGHT. MAINTENANCE DID NUMEROUS ATTEMPTS TO DUPLICATE WITH SYSTEM PARTS BEING REPLACED FOR TROUBLESHOOTING PURPOSES. TEST FLIGHTS WHERE COMPLETED WITH THE SDR PCAA0301027Switch · stuckPIT-FLIGHT#3989. CREW REPORTED #1 GROUND RANGE LIGHT CYCLES WITH POWER LEVER IN DISC. MAINTENANCE REPLACED POWER LEVER SWITCH 6141 S3 AND SWITCH 6121 S11 FOUND TO BE OUT OF ADJUSTMENT. REMOVED AND REPLACED SWITCHES IN ACCORDANCE WITH DASH 8 MAINTENANCE MANUAL SDR KKI2003F00000Pin · wrong partDURING ANNUAL INSPECTION, IT WAS FOUND THAT FEATHERING PIN ASSY MOUNTED ON THIS PROPELLER IS WRONG PART. PART AS INSTALLED IS MOUNTED ON TOP OF TWO RIVETS IN SPINNER BULKHEAD, CAUSING PART TO BE BENT OVER THE RIVETS AND WEARING ON BLADE CLAMPS. LEFT UNREPAIRSDR AUS20030122O-Ring · failed(AUS) LT ENGINE FEATHERING PUMP INLET BOBBIN O-RING SEAL FAILED. LOSS OF ENGINE OIL.SDR 046592Valve · out of adjustON TAXI, THE LEFT PROPELLER FAILED TO FEATHER MANUALLY. THE AIRCRAFT RETURNED TO THE GATE WITH NO FURTHER INCIDENT. MAINTENANCE ADJUSTED THE FEATHER VALVE. NO PARTS WERE USED. TEARDOWN REPORT WILL NOT BE REQUIRED.SDR CA021219004Signal Cond Unit · intermittent(CAN) AFTER TAKEOFF, AUTOFEATHER WAS DESELECTED. ABOUT 1 MIN LATER THE 'ARM' LIGHT REILLUMINATED AND REMAINED ON FOR APPROX 15 MINUTES. PLUGS IN RT WING ROOT CLEANED AND INSPECTED. RELAYS 6121- K1, K2, K3, AND K5 REPLACED FOR TROUBLESHOOTING. NR 2 ENGINE TORQSDR CA021204004Sleeve · cracked(CAN) MAG PARTICAL INSPECTION FOUND CRACK INDICATION ON THE B476 SLEEVE UNIT AT THE SLOTTED END ABOUT 1/8 INCH LONG. HARTZELL SERVICE BULLETIN 61235 INCORPORATED.SDR CA021112009Switch · failed(CAN) AFTER TAKE OFF, PILOT EXPERIENCED DIFFICULTY CONTROLLING NR 4 PROP RPM. AFTER INFLIGHT SHUT DOWN, PILOT UNABLE TO FEATHER NR 4 PROPELLER. UPON INSPECTION, NR 4 PROP FEATHERING SWITCH WAS FOUND TO HAVE FAILED INTERNALLY IN SUCH A MANNER THAT IT WAS TURNSDR HNAA0200072Potentiometer · defectiveAUTO FEATHER WOULD NOT ARM, ABORTED TAKEOFF. REMOVED AND REPLACED NUMBER TWO POWER LEVER POTENTIOMETER, OPERATIONAL CHECK GOOD.SDR CA021127002Plate · dislodged(CAN) PROPELLER WAS NOT IN THE FULL FEATHER POSITION. INSPECTION SHOWED THAT THERE WAS A GAP BETWEEN THE FEATHER STOP NUT AND THE REVERSE ADJUST SLEEVE. PROPELLER WAS REMOVED AND SENT TO PROPELLER OVERHAUL SHOP FOR REPAIR. ON DISASSEMBLY, THE PRELOAD PLATE WASDR SWIA200211409Pump · fluctuatesAUX FEATHER PUMP BROKEN, RT ENGINE TORQUE FLUCTUATES 3 PERCENT TO 4 PERCENT AT CRUISE. REMOVED AND REPLACED AUX FEATHER PUMP.SDR A6WA200230036Probe · failedRT ENGINE TORQUE INDICATION LOST ENROUTE, FOLLOWED BY AUTOFEATHER APPROX 15 MINUTES AFTER TORQUE LOSS. CRUISE POWER TORQUE APPROX 86 PERCENT NP WHEN FAILURE OCCURRED. ENGINE REMAINED IN FEATHER WITHOUT SHUTTING DOWN ENGINE MAINTENANCE REMOVED AND REPLACE TORSDR AUS20020951Plate · cracked(AUS) PROPELLER PITCH CONTROL LEVER FEATHER STOP GATE PLATE CRACKED.SDR AUS20020950Plate · cracked(AUS) PROPELLER PITCH LEVER FEATHER STOP PLATE CRACKED PREVENTING OPERATION OF PITCH LEVER.SDR QXEA0201145Relay · inoperativePDX- ABORTED TAKEOFF, DURING TAKEOFF ROLL AT 70 KIAS ON TAKEOFF POWER SET, NOTED THAT AUTO-FEATHER ARM LIGHT WAS NOT ON. LIGHT TESTED GOOD. AIRCRAFT LANDED WITHOUT INCIDENT. REMOVED AND REPLACED 6121-K5 RELAY. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TOSDR QXEA0201107Switch · malfunctionedLWS- ABORTED TAKEOFF DUE TO NR 1 AUTOFEATHER DOES NOT TEST. REMOVED AND REPLACED ALT FEATHER MICRO SWITCH. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.SDR QXEA0201106Switch · dirtyLWS- ABORTED TAKEOFF DUE TO AUTOFEATHER FAILED TO ARM. BULB CHECKED OKAY. CLEANED POWER LEVER SWITCHES. NO PARTS REPLACED. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.SDR SWIA200210995Cover · out of positionABORTED TAKEOFF WHEN LEFT ENGINE FEATHERED ON TAKEOFF ROLL. INSPECTED AND FOUND SWITCH COVER FOR LEFT ENGINE ELECT FEATHER INTERFERING WITH THE SWITCH. REPOSITIONED SWITCH COVER AND ENSURED CLEARANCE ON SWITCH. PERFORMED EXTENSIVE GROUND RUNS WITH NO FURTHESDR CA020626012Wire Harness · corroded(CAN) ON TAKE-OFF ROLL AUTO FEATHER FAILED TO ARM , TAKE-OFF REJECTED AND AIRCRAFT RETURNED TO RAMP. MAIN ENGINE ELECTRICAL HARNESS CONNECTER PINS FOUND CORRODED , WIRING HARNESS REPLACED , AIRCRAFT RETURNED TO SERVICE .SDR CA020627009Pump · failed(CAN) AFTER ENGINE OIL TEMP ROSE & OIL PRESSURE FELL, PILOT SHUTDOWN ENGINE & ATTEPTED TO FEATHER PROP. TRIED SEVERAL TIMES WITH NO SUCCESS. A/C RETURNED. ENGINE & PUMP WERE RETURNED. FEATHERING PUMP & MOTOR WERE DISASSEMBLED & MOTOR SHOWED SIGNS OF EXCESSIVSDR SWIA200210913Relay · failedUPON ADDING POWER ON TAKEOFF, LEFT TORQUE GAUGE WOULD NOT GO ABOVE 75PERCENT, THEN AURAL AUTO FEATHER WARNING SOUNDED AND THE RIGHT ENGINE FEATHERED. UPON PULLING BACK POWER TO GROUND IDLE BOTH SIDES (ABORT), LEFT TORQUE GAUGE REMAINED AT 75 PERCENT AND RIGHTSDR QXEA0200850Light · extinguishedBOI - AUTO FEATHER ARM DISAPPEARED ON ENGINE DISPLAY ON TAKEOFF. COMPLIED WITH FUNCTIONAL CHECK VERIFICATION PER AMM 61-20-00, PAGE 509-510. COMPLIED WITH TEST IAW AMM 61-20-00, PAGE 511-512. COMPLIED WITH FIM PROCEDURE 61-20-00, PAGES 272-274. COMPLIED WISDR QXEA0200849Light · extinguishedPIH - ABORTED TAKEOFF, AUTO FEATHER ARM DISAPPEARED. SELECTED AUTO FEATHER TEST NO DEFECTS NOTED. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.SDR S2YA02016Switch · sticksFLT 1454 - DAY-MKE - DURING TAKEOFF, THE RIGHT AUTO FEATHER DISABLE ANNUNCIATOR ILLUMINATED. THE CREW ABORTED THE TAKEOFF. THE A/C WAS FERRIED BACK TO MKE. MAINTENANCE REPLACED THE AUTO FEATHER SWITCHES IN THE POWER LEVER, OPS CHECK GOOD. (M)SDR QXEA0200546Controller · faultyPDX - ABORTED TAKEOFF, AUTO FEATHER DID NOT ARM. REPLACED AUTO FEATHER CONTROLLER. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.SDR SWIA200210781Relay · failedON THE TAKEOFF ROLL, RECEIVED A TAKEOFF AUTO FEATHER WARNING WITH THE AUTO FEATHER SWITCH IN THE ON POSITION (IT HAD TESTED NORMALLY ON TAXI OUT). TAKEOFF WAS ABORTED AND AUTO FEATHER SYSTEM WAS TESTED AGAIN ON TAXI BACK. TESTED NORMALLY AGAIN. ON SECOND TASDR MALA020237Pump · failedON FLIGHT 2837 LEFT ENGINE OIL PRESSURE LIGHT ILLUMINATED INFLIGHT. LEFT PROP OIL PRESSURE WAS LOW. COMPLIED WITH QRH ALL OTHER ENGINE T-PROP PARAMETERS OK. FLIGHT DIVERTED TO EAU. FLIGHT LANDED WITHOUT PROBLEMS. MAINTENANCE REPLACED FEATHERING PUMP IAW SSDR MAS2002F00008Switch · failedRETURNED TO THE GATE DUE TO THE AUTOFEATHER SWITCH (SELECT) WOULD NOT MECHANICALLY ENGAGE. MECHANIC WAS CALLED AND REPLACED THE AUTOFEATHER SWITCH, OPS CHECK GOOD AND WAS RETURNED TO SERVICE.SDR QXEA0200541Connector · loosePDX - ABORTED TAKEOFF. DURING TAKEOFF ROLL WITH POWER LEVERS SET, NO AUTO FEATHER ARM LIGHT ILLUMINATED. FOUND CONNECTOR AT AUTO FEATHER CONTROLLER LOOSE. REMOVED CONNECTOR AND CHECKED NR 1 AND 2 POWER LEVER A, F POTENTIOMETERS. RIGS CHECKED NORMAL. NO PASDR QXEA0200540Post · out of adjustMFR - ABORTED TAKEOFF AUTO FEATHER ARM FUNCTION INOP. ADJUSTED POST AND PERFORMED AUTO FEATHER OPERATIONAL CHECK. OPERATION CHECK GOOD. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.SDR SWIA200210745Relay · faultyON ROTATION AT SJC RECEIVED AN AURAL WARNING TAKEOFF AUTO FEATHER. ABORTED TAKEOFF. FOUND K0161 RELAY TO BE SLOW. INSTALLED NEW RELAY AND OPERATED SYSTEM. OPS CHECKS GOOD AT THIS TIME.SDR GLBA2002021Pressure Switch · failedAUTO FEATHER LIGHT ILLUMINATED INFLIGHT. REPLACED HIGH PRESSURE SWITCH, OPS CHECKED SYSTEM SATISFACTORY.SDR SWIA200210655Relay · failedON TAKEOFF ROLL AT APPROXIMATELY 70 KIAS, AUTO FEATHER AURAL WARNING AND TRIPLE CHIME. TAKEOFF WAS ABORTED. AUTO FEATHER SWITCH WAS ON AND TRIM SET TO 28 PERCENT (MIDDLE OF GREEN BAND). PROP AUX FEATHER AND MANUAL FEATHER TESTS WERE NORMAL DURING TAXI. FUNSDR SWIA200210635Relay · failedABORTED TAKEOFF DUE TO AUTOFEATHER AURAL WARNING AND NO GREEN ARMED LIGHT. SUBSEQUENT RUN UP PRODUCED NO GREEN ARMED LIGHT. REF WDM 61-23-00 REPLACED RELAY K0161 - ARMED INDICATOR RELAY. OPS CHECKS PER MM 61-23-26. AUTOFEATHER SYSTEM TEST WITH ENGINE RUNNISDR CA020522005Controller · malfunctioned(CAN) TAKE OFF ABORTED DUE TO NO AUTOFEATHER ARM INDICATION. MAINTENANCE INVESTIGATION / ACTION FAULT CODE 420 (AUTOFEATHER ARMED LOGIC) FOR LT PROP CHANNEL. A WAS FOUND IN THE CENTRAL DIAGNOSTIC SYSTEM. THE FAULT CODE WAS CLEARED SUCCESSFULLY. AIRCRAFT RETURNSDR SWIA200110490Switch · out of adjAUTO FEATHER SYSTEM WOULD NOT ARM DURING TAKEOFF. TESTED OK ON FIRST FLIGHT OF THE DAY CHECKS. CLEANED BOTH 62 DEGREE MICRO SWITCHES AND ADJUSTED RIGHT SWITCH IAW MM 76-10-01. OPS CHECK GOOD.SDR CA011205006Control Unit · malfunctioned(CAN) PRIOR TO TAKE-OFF, AUTOFEATHER ARMING BAULKED, ACTIVATED ON RE-SELECTION. ON TAKE-OFF, AFTER GEAR UP SELECTION, NR 2 ENGINE INITIATED UNCOMMANDED AUTOFEATHER (TORQUE 125 PERCENT PLUS). CREW DE-SELECTED AUTOFEATHER WITHIN FOUR SECONDS, TORQUE RETURNEDSDR AUS20011143Propeller · malfunctioned(AUS) RT PROPELLER AUTOFEATHER. PROPELLER OVER TORQUED. INVESTIGATION COULD FIND NO FAULT.SDR COMA0110144Gauge · faultyFLIGHT #5062. DURING TAKE OFF FROM NAS THE RIGHT ENGINE PROPELLER AUTO FEATHERED AT 80 KNOTS, ABORTED TAKE OFF AND RETURNED TO THE GATE.REPLACED THE RIGHT ENGINE TORQUE GAUGE.SDR C2XA01IA363Sensor · faultyFLT 2937, CREW REPORTED THAT THE AUTOFEATHER LIGHT DID NOT ILLUMINATE AND NUMBER 2 ENGINE WAS LOSING POWER DURING TAKEOFF ROLL. THE CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE INSPECTED AND FOUND THE NR 2 GCU MAGNETIC INDICATOR TO BE POPPED. SDR SWIA200110117Signal Cond Unit · malfunctionedDURING AUTOFEATHER SYSTEM TEST, NO GREEN ''ARMED'' LIGHT ALTHOUGH THE TORQUE DOES RISE 75 PERCENT AND THE PROPS WILL FEATHER.REPLACED LEFT SCU. REPLACED XK0161 AND K0161. REPLACED SOCKET FOR RELAY K0161. OPS CHECKED AUTOFEATHER ARM LIGHT. ALL CHECKS GOOD PSDR HNAA010046Tscu · inoperativeAUTO FEATHER DID NOT ARM ON TAKEOFF. TAKEOFF WAS ABORTED AND AIRCRAFT RETURNED TO GATE. REPLACED NR 1 AND 2 TSCU AND ADJUSTED POWER LEVER SWITCH 6121-S13.SDR HNAA0100045Tscu · failedAUTO FEATHER DID NOT ARM ON TAKEOFF. TAKEOFF WAS ABORTED AND AIRCRAFT RETURNED TO THE GATE. REPLACED NR 1 AND NR 2 TSCU AND ADJUSTED POWER LEVER SWITCH 6121-S13.
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