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 GLBA20110711GSolenoid · dirtyPILOT REPORTED THAT WHEN THE POWER IS PULLED BACK TO IDLE DURING THE FLARE THE NR 2 PROP STAYS AT 1700 RPM AND WHILE THE NR 1 COMES DOWN THROUGH 1600 RPM. MX CLEANED, INSP, AND LUBED THE FLIGHT IDLE STOP SOLENOID, OPS CHECKED GOOD IAW RUN SHEET, ALL CHECKS GOSDR GLBA20110711FSolenoid · dirtyPILOT REPORTED THAT WHEN THE POWER IS PULLED BACK TO IDLE DURING THE FLARE THE NR 2 PROP STAYS AT 1700 RPM AND WHILE THE NR 1 COMES DOWN SLOWLY. MX CLEANED THE LOW PITCH SOLENOID, PERFORMED ENGINE RUN SHEET 1900-RUN-WORKSHEET FEG 212, OPS CK GOOD.SDR 2011F00163Autofeather Sys · malfunctionedON FINAL APPROACH THE LT ENGINE HAD AN UNCOMMANDED AUTOFEATHER.SDR NSVA2011154Pump · leakingDURING A CHECK FOUND BOLT BACKED OUT FROM THE FILTER COVER. O-RING DISPLACED LEAKING OIL. (NO SAFETY WIRE ON BOLTS). REPLACED FEATHERING PUMP.SDR 2011F00156Autofeather Sys · malfunctionedLT ENGINE UNCOMMANDED AUTOFEATHER ON DESCENT.SDR 29GA93761062811APressure Switch · malfunctionedPILOT REPORTS, ON APPROACH, RT PROPELLER CYCLES IN AND OUT OF AUTOFEATHER. REPLACED RT AUTOFEATHER LOW PRESSURE SWITCH.SDR GLBA20110630FSwitch · inoperativePILOT REPORTED THAT WHILE REDUCING POWER FROM 1200 LBS TORQUE TO IDLE NR1 ENGINE TRIED TO AUTOFEATHER. MX R & R LT & RT LOW PRESSURE AUTOFEATHER SWITCHES & RIGGED LT & RT ENGINE TORQUE IAW AIM CH 7, SECTION 7.5 & BMM 61-21-01, OPS CK GOOD.SDR 2011F00152Autofeather Sys · malfunctionedUNCOMMANDED AUTOFEATHER ON APPROACH.SDR TRBA2011098Autofeather Sys · malfunctionedDURING APPROACH, AT FLIGHT LEVEL 200 THE CREW REPORTED THE RT ENGINE WENT TO UNCOMMANDED FEATHER, BOTH PROPS /CONDITION LEVERS MAX RPM ,TORQUE SHOWED 0, NP 70 , ITT 400 ISH. THE ACFT WENT THROUGH ANOTHER ACFT’S WAKE TURBULANCE ABOUT 600 '. ACFT LANDED WITHOUSDR 2011F00129Pressure Switch · malfunctionedUN-COMMANDED AUTO FEATHER ON APPROACH (RH), COULD NOT DUPLICATE, SWAPPED LT AND RT HIGH AND LOW PRESSURE SWITCHES, OP CHECKED CAM SWITCHES, SYSTEM OP CHECKED GOOD ON GROUND AND MAINTENANCE VERIFICATION FLIGHTSDR 2011F00150Autofeather Sys · malfunctionedUNCOMMANDED AUTOFEATHER ON APPROACH, ADJUSTED NR 2 POWER CONTROL SYS, OPS CHECKED GOOD ON GROUND RUNS AND ON MX VERIFICATION FLIGHT.SDR V2JA2011FA0000350Autofeather Sys · malfunctionedUNCOMMANDED AUTOFEATHER ON APPROACH,POSIBLE RT ENGINE SWAPPED NR 1 AND 2, COULD NOT DUPLICATE, PERFORMED FUNCTIONAL CHECK ,SYSTEM OP CHECKED GOODSDR GLBA20110603ASwitch · inoperativePILOT REPORTED THAT THE AUTOFEATHER CYCLED ABOUT 5 TIMES ON FINAL APPROACH INTO DEN, RPM DROPPED FROM 1700 TO 1400 ON NR 1 ENGINE AND RETURNED TO 1700 AFTER ADDING POWER. MAINTENANCE REPLACED THE LT AFX LOW PRESSURE SITCH AND RIGGED THE RH ENGINE , FCU DEAD BASDR GLBA201106031Valve · malfunctionedLT ENG AUTO FEATHERED ON FINAL, EACH ENGINE SET TO 300 LBS, ADVANCED TO 1000 LBS, LT ENG AUTO FX UNTIL POWER ADVANCED ABOVE 1200 LBS. MAINTENANCE ADJUSTED RT ENGINE BETA VALVE AND LOW PITCH SOLONOID REF AIM72-50 AND T.C. 1900-ENGINERUN SHEET.SDR GLBA20110603GAutofeather Sys · malfunctionedPILOT REPORTED THAT THE LT ENGINE AUTOFEATHERED ON FINAL, EACH ENGINE SET TO 300LBS, ADVACED TO 1000 LBS LT ENGINE AUTOFEATHERED UNTIL POWER WAS ADVANCED. MX RIGGED BOTH ENGINES IAW WITH THE MM, OPS CK GOOD.SDR CA110606006Autofeather Sys · failedAIR TURNBACK/LOSS OF POWER SHORTLY AFTER DEPARTED, A TEMPORARY SUDDEN LOSS OF POWER OCCURRED, THE ACFT RETURNED TO THE DEPARTURE AIRPORT WHERE AN UNEVENTFUL LANDING TOOK PLACE. TROUBLESHOOTING IS FOCUSING ON A POSSIBLE UNCOMMANDED AUTOFEATHER. THE AFU WILL BE SDR MASA2011053002892Pump · leakingNR 2 AUX FEATHER PUMP LEAKING. R2 AUX FEATHER PUMP.SDR HNAA2011051700141Switch · inoperativeABORTED TAKEOFF DURING TAKEOFF ROLL. AUTOFEATHER DID NOT ARM. R & R SWITCH 6121-S13. GROUND RUN OPS CHECKED GOOD IAW RUNUP MANUAL.SDR HNAA2011051700138Switch · inoperativeABORTED TAKEOFF AUTOFEATHER WILL NOT ARM. CYCLED POWER LEVERS, OPS CHECKED NORMAL. R & R SWITCH 6121-S13. GROUND RUN, OPS CHECKED GOOD IAW RUNUP MANUAL.SDR V2JA2011F00111Autofeather Sys · fluctuatesDURING APPROACH RT ENGINE AUTOFEATHER ACTIVATED. PROP RPM FLUCTUATED UNTIL AUTOFEATHER SWITCH TURNED TO OFF POSITIONSDR 2011FA0000296Autofeather Sys · malfunctionedUNCOMMANDED AUTOFEATHER WITH REDUCED POWER ON FINAL APPROACH, ACCOMPLISHED AUTO FEATHER FUNCTIONAL TEST, FOUND BOTH ENGINE HIGH PRESSURE SWITCHES OPERATED PROPERLY UPON PRESSURE DECREASING AT 580 FT LBS AND 585 FT LBS. BOTH ENGINE LOW PRESSURE SWITCHES OPERASDR MASA2011050502622Tscu · malfunctionedNR 2 AUTO FEATHER FAILED TEST. R2 NR 2 TSCU.SDR CA110516018Autofeather Sys · inoperativeUNCOMMANDED AUTOFEATHER, IFSD DURING CLIMB AFTER TAKE-OFF, AN OVERTORQUE OCCURRED ACCOMPANIED BY REDUCTION IN POWER TURBINE SPEED. THE ENGINE WAS SHUTDOWN AND AN UNEVENTFUL SINGLE ENGINE LANDING FOLLOWED. IT WAS DETERMINED THAT THE ENGINE LIKELY HAD AN UNCOMMSDR JJBA369PH721255Control Unit · inoperativeDURING TAKEOFF, ACFT EXPERIENCED A NR1 PROPELLER UNSCHEDULED FEATHER. AIRCREW DECLARED AN EMERGENCY AND RETURNED TO FIELD. GROUND MX CREW PERFORMED TEST OF THE PLA AND CLA SWITCHES. NO FAULTS WERE FOUND. NR 1 TSCU WAS R & R, ENGINE WIRING HARNESS INSPECTEDSDR QXEA2011042500292Autofeather Sys · no testAUTO FEATHER WILL NOT TEST. FOUND CLA'S AT MAX/1020. SET THEM TO FUEL OFF AND PERFORMED OPS TEST OF THE PROPELLER AUTOFEATHER AND UPTRIM SYS IAW 61-20-00-710-801. OPS CHECKS GOOD NO DEFECTS NOTED. RETURNED TO SERVICE. NO PARTS REPLACED.SDR CA110427005Control System · malfunctioned(CAN) UNCOMMANDED AUTOFEATHER DURING T/O ROLL, THE ENGINE HAD AN UNCOMMANDED AUTOFEATHER. THE T/O WAS ABORTED. TROUBLESHOOTING IS FOCUSING ON A FAULTY TORQUE SIGNAL CONDITIONER UNIT.SDR MASA2011040602343Autofeather Sys · malfunctionedAUTO FEATHER W/N ARM-RTG. MX PERFORMED CTR TRIM AND RUN TRIM ON BOTH ENGINES.SDR GUUA94761032711ACircuit Board · looseLT AUTOFEATHER-INOPERATIVE. FLASHES AFX ON TAKEOFF THEN GOES OUT. R & R PCB A123. OPS CHECKS NORMAL.SDR HNAA201103300006Relay · malfunctionedABORTED TAKEOFF, AUTOFEATHER D/N ARMED. DURING RUN UP A/F ARMED HIGHER PLA. (2ND ATTEMPT) R & R AUTOFEATHER ARM RELAY 6121K5 IAW STANDARD MX PRACTICES. CONFIRMED AUTO FEATHER RIGGING GOOD IAW MM 76-10-15. RAN ACFT AND VERIFIED PROPER OPS OF AUTOFEATHER IAW 6SDR QXEA2011032900260Light · malfunctionedAUTOFEATHER SWITCH LIGHT INOPERATIVE WHEN SELECTED. TROUBLESHOT TO BAD ADVISORY LIGHT CONT BOX. R & R ADVISORY LIGHT CONT BOX REF AMM TASK 31-51-06-000-801. 31-51-06-400-801. C/W AUTO FEATHER TEST REF AMM TASK 61-20-00-710-801. OPS CHECK GOOD AT THIS TIME. SDR 2011FA0000205Autofeather Sys · malfunctionedLEFT AUTOFEATHER CYCLES IN AND OUT DURING DECENT, AUTOFEATHER HAD TO BE TURNED OFF. AFTER LANDING, LT FEATHERED AT 24 PERCENT, RT FEATHERED AT 20 PERCENT.SDR CA110331024Stop · broken(CAN) WHEN CARRYING OUT A 500 HOUR INSPECTION, THE FEATHER STOP PN 78713-00 WAS FOUND TO BE BROKEN. WE ARE ROUTINELY FINDING THIS PART TO BE BROKEN ON OUR 3 SEMINOLES & THE AVERAGE SERVICE LIFE OF THE PART IS ONLY 200 HOURS.SDR QXEA2011032300235Control Panel · malfunctionedAUTOFEATHER ARM BUTTON WILL NOT REMAIN IN AND PUSHED ON. REPLACED THE FUEL/ENGINE/PROPELLER CONTROL PANEL IAW AMM 31-10-000-801 AND 31-10-01-400-801. OPS CHECKS GOOD. RETURNED TO SERVICE.SDR MASA2011031202137Signal Cond Unit · faultyAUTO FEATHER SYS DID NOT ARM ON T/O. MX REPLACED 6121-K5 RELAY AND BOTH SIGNAL CONDITIONING UNITS.SDR MASA2011031002114Relay · inoperativeAUTO FEATHER DID NOT ARM, CREW ABORTED T/O AND RETURNED TO GATE. MX REPLACED RELAY 6121K5.SDR MASA2011030702100Tscu · faultyAUTO FEATHER LIGHT W/N SHUT OFF W/ SWITCH. MX REMOVED AND REPLACED TSCU, OPS CHECK IS GOOD.SDR MASA2011030702084Warning System · malfunctionedAUTO FEATHER ARM LIGHT WOULD NOT EXT. OPS GOOD.SDR MASA2011022402014Relay · failedAUTO FEATHER WOULD NOT TEST. MX REPLACED RELAY 6121K5.SDR MASA2011022302005Autofeather Sys · malfunctionedAUTO FEATHER WILL NOT ARM, RETURNED TO GATE. MX OPS CHECK NORMAL.SDR MASA2011022201987Autofeather Sys · malfunctionedAUTOFEATHER TEST FAILED. MX OPS CHECK GOOD.SDR HNAA2011022000034Tscu · failedAFTER TAKEOFF, AUTO FEATHER ARM FAILED TO DESELECT. CHECKED SWITCH 6121 S7, S8, S9, S19, S11. RESOLDERED 612149L22 TO SWITCH 6121S6. CHECKED FOR GROUND IN THE ENABLE CIRCUIT AT BOTH TSCU'S P6 AND P7 PIN 8 AND 1. NO DEFECTS NOTED. R & R NR 1 TSCU IAW 72-01-SDR MASA2011021801954Pump · leakingNR 2 AUX FEATHER PUMP LEAKING. MX REMOVED AND REPLACED AUX PUMP.SDR HNAA2011021500030Relay · malfunctionedWITH AUTOFEATHER DESELECTED, AUTOFEATHER ARM LIGHT WOULD NOT EXTINGUISH. CREW REPORTED LIGHT EXTINGUISHED ON DECENT. R & R NR 2 TSCU IAW 72-01-10 AND ARM CONTROL RELAY 6121-K5. GROUND RAN ACFT, OPS CHECKED GOOD AT THIS TIME.SDR QXEA2011021400154Autofeather Sys · no testAUTOFEATHER TEST FOR THE DAILY FAILS. NR 2 ENGINE DOES NOT TEST AT ALL. NR 1 ENGINE DISPLAYS "A/F TEST ABORT" AFTER STARTING TEST. INSPECTED AND FOUND THE POWER LEVERS OUT OF THE "DISC" POSITION. PERFORMED THE AUTOFEATHER TEST IAW AMM TASK 61-20-00-710-801SDR TRBA2011015Control Unit · erraticDURING DESCENT NR 1 ENGINE LOST POWER FOR 10 SECONDS OR LESS. ENG WARNING ON CAP NR 1 TORQUE INDICATE WENT TO ZERO & ACW GEN WENT OFF LINE. POWER RETURNED TO NORMAL. PERFORMEDED OPS CK IAW EX-055007-CS-20000-001. COULD NOT DUPLICATE THE PROBLEM. OPS CHECKED SDR TRBA2011013Controller · failed(EMERGENCY DECLARED) DURING CRUISE FLIGHT, NR 2 ENGINE PROPELLER FEATHERED AND GOT EEC NR 2 FAULT, IAW CREW DEBRIF, CREW SHUTDOWN NR 2 ENGINE PRECAUTIONARY IAW MFG PROCEDURES. NR 2 ENG PCU REPLACED IAW MM 61-22-00, OPT CHECK AND LEAK CHECK GOOD, ALSO REFERSDR QXEA2011020100119Switch · failedTHE AUTOFEATHER SELECT BUTTON WILL NOT ENGAGE WHEN PUSHED. REPLACED THE AUTOFEATHER SWITCH. C/W OPS TEST IAW AMM 61-20-00-710-801. NO DEFECTS NOTED. RETURNED TO SERVICE.SDR GUUA94561010111BAutofeather Sys · failedPILOT REPORTED UPON CLIMB OUT LT AUTO FEATHER FAILED TO ARM, DIFFERENT TORQUE SETTINGS WILL MAKE IT FLICKER BUT 10 SECONDS LATER IT WILL FAIL. RETURN TO DEPARTURE, LANDED WITHOUT INCIDENT. SECURED LOOSE PIN AT PCB A129, OPS CK GOOD.SDR GUUA94561010111AAutofeather Sys · disengagedPILOT REPORTED AFTER DEPARTURE ( AROUND 2000 FT) LT AUTO FEATHER DISARMED AND WOULD NOT ARM AGAIN. RETURNED TO DEPARTURE, LANDED WITHOUT INCIDENT. REPLACED AUTOFEATHER PCB A-123, OPS CHECK GOOD.SDR 2010FA0001257Propeller · malfunctionedLEFT ENGINE ENTERED UNCOMMANDED FEATHER ON APPROACH, AIRSPEED WAS 170KTS. ACFT YAWED LT, AFTER 10 SEC ALL RETURNED TO NORMAL.
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