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 GLBA20090408FSwitch · out of adjustSIGNIFICANT EVENT-SUSPECTED AUTOFEATHER -PILOTS REPORTED THAT THE NR 2 ENGINE PROPELLER FEATHERED VIOLENTLY IN AIR WITH PROPELLERS FULL FWD AND REDUCING POWER. AUTO FEATHER SWITCH WAS IN THE ARMED POSITION 500 FT ABOVE THE GROUND. MX GROUND RUNS SHOWED THE LT SDR GLBA20090409FCam · wornPILOTS REPORTED THAT THE ACFT YAWS VIOLENTLY TO THE LT ON FLAIR (LANDING). MX REMOVED AND REPLACED THE RT ENGINE PROPELLER CAM/LEVER IAW MM 76-10-00. GROUND RUNS WERE PERFORMED AND WERE WITHIN GIVEN PARAMETERS.SDR QXEA2009040600230Autofeather Sys · malfunctionedRDM - AUTO FEATHER DIDN'T NOT SELECT. AS DIRECTED BY MTX CONTROL PERFORMED PILOT AUTOFEATHER TEST. RECEIVED AUTOFEATHER TEST PASSED AUTOFEATHER NOW SELECTS. RETURNED TO SERVICE. NO PARTS REPLACED.SDR GLBA20090320BSolenoid · out of rigPILOTS REPORTED THAT WHILE ADDING TAKEOFF POWER THE RIGHT ENGINE WENT INTO FEATHER THROUGH APPROXIMATELY 1500 LB OF. TORQUE. MAINTENANCE RIGGED THE RIGHT HAND PROP BETA VALVE AND RIGHT HAND LOW PITCH SOLENOID. REFERENCE MM 76-10-00. OPERATIONAL CHECK WAS GOOD.SDR CA090401010Packing · damaged(CAN) RT ENGINE WAS SHUTDOWN DURING A SCHEDULED REVENUE FLIGHT. THE ACFT WAS DIVERTED WHERE A SINGLE ENGINE LANDING WAS PERFORMED. POST FLIGHT INSP REVEALED A DAMAGED PREFORMED PACKING BETWEEN THE FEATHERING PUMP AND THE CASE. PACKING WAS REPLACED AND FOLLOWINSDR GLBA2009031309ACircuit Board · malfunctionedON EXENED BASE POWER AT 1200 FT. LBS. ENGINES WERE GOING IN AND OUT OF FEATHER. MAINTENANCE RE-RACKED THE AUTOFEATHER PRINTED CIRCUIT BOARD AND THEY SYSTEM OPERATIONALLY CHECKED GOOD PER BMM 61-21-00-0001. OPERATION CHECK OF AUTOFEATHER SYSTEM GOOD PER 61-21-0SDR GLBA200903041Pedestal · out of adjustUPON SHORT FINAL THE PILOTS REPORTED THAT THE RIGHT HAND PROPELLER BEGAN TO CYCLING IN AND OUT OF AUTOFEATHER. THE PILOT INCREASED POWER HOWEVER IT DID NOT FIX THE PROBLEM. PILOTS TURNED OF THE AFX AND IT STOPPED FEATHERING. MAINTENANCE INSPECTED THE AUTOFEATHSDR GLBA20090304HSwitch · out of adjustFLT 5106 - ON APPROACH THE PILOTS REPORTED THAT THE NR 2 ENGINE CYCLES IN AND OUT OF FEATHER AT APPROXIAMTELY 1000 LBS. OF TORQUE AS THEY INCREASED POWER ON FINAL. THEY WERE NOT SURE OF THE N1 AT THE TIME. MAINTENANCE REMOVED AND REPLACED THE PROP OVERSPEED GSDR HNAA2009022800082Switch · intermittentDURING TAKEOFF ROLL AUTOFX ARM SWITCH POPPED OUT, RESEATED SWITCH OPS CHECK GOOD. COMPLY WITH OPS CHECK OF AUTOFX ARM LIGHT/SWITCH, NO DEFECTS NOTED. AT NEXT RON, REMOVED AND REPLACED AUTOFX SWITCH LIGHT ASSEMBLY. REMOVED AND REPLACED AUTO FEATHER SWITCH ASSDR GLBA20090205ACircuit Board · shortedSUSPECTED AUTO FEATHER - PILOTS REPORTED THAT ON SHORT FINAL THE RT ENGINE CYCLED IN AND OUT OF FEATHER. MX R&R THE A123 PRINTED CIRCUIT BOARD AND OPS CHECKED THE SYSTEM IAW MM 61-21-00.SDR GLBA20090205DGovernor · malfunctionedSUSPECTED AUTO FEATHER - PILOTS REPORTED THAT THE RT PROPELLER AUTO FEATHERED IN FLIGHT WITH CORRESPONDING ENGINE ISSUE. AUTOFEATHER INOPERATIVE. MX R&R THE RT OVERSPEED GOVERNOR IAW MM 61-20. RIGGED BOTH LOW IDLES AND CORRECTED POWER SPLIT. OPS CHECKS WERSDR GLBA2009020409BAutofeather Sys · unknownRT ENG AUTO FEATHERED ON APPROACH.SDR GLBA200902041Pressure Switch · wornSUP - SIGNIFICANT EVENT - SUSPECTED AUTOFEATHER - UPON APPROACH WITH AUTOFEATHER ARMED BOTH TOQUE GAUGES AT 1000 THE RIGHT HAND SURGES BETWEEN 500 & 1500 LBS. OF TORQUE. FEELS LIKE AN AUTOFEATHER TEST. THIS CONTINUED UNTIL POWER WAS REMOVED, APPROXIMATELY 500 SDR QXEA2009020400080Autofeather Sys · malfunctionedSEA - TAKEOFF ABORTED IN SEA DUE TO AUTOFEATHER NOT ARMING. SPEED AT ABORT ABOUT 30 KNOTS. NOTHING WAS DISPLAYED ON ED. PERFORMED FIM TASK 61-20-02-810-834. AUTOFEATHER SYSTEM SELF TEST GOOD. CLEARED FAULTS. NO OTHER FAULTS LOGGED AFTER TEST. RETURNED TSDR GLBA200902040Pressure Switch · wornPILOTS REPORTED THAT UPON FINAL APPROACH WITH PROPELLERS FULL FORWARD IDLE POWER, THE LT ENGINE CYCLED IN AND OUT OF AUTO FEATHER WITH 500 LBS. OF TORQUE CHANGE. THE ISSUE CEASED TO OCCUR AFTER POWER WAS INCREASED. MX R&R THE LT LOW PRESSURE SWITCH IAW 61-21SDR HNAA2009013000034Switch · failedWHILE ADVANCING THE POWER LEVERS TOWARD TAKE OFF POWER, THE NR 2 PROPELLER FEATHERED, THE AUXILIARY PUMP LIGHT ILLUMINATED AND THE PROP TORQUE SPIKED TO 100% FOR APPROXIMATELY 1 TO 2 SECONDS. THE TAKE OFF WAS ABORTED AND THE ACFT WAS RETURNED TO THE MX FACILISDR 2009FA0000019Tube · chafedA HOLE WAS CHAFED IN THE RT PROPELLER UNFEATHERING ACCUMULATOR TUBE BY THE NR6 CYLINDER HEAD TEMPERATURE WIRE. BOTH THE TUBE AND WIRE NEED TO BE SEPARATED AND SECURED TO PREVENT CONTACT.SDR GLBA200901121Switch · out of adjustSIGNIFICANT EVENT, MAINTENANCE ADJUSTED AUTOFEATHER MICROSWITCH IN PEDESTAL IAW 1900D MM 61-21-02. OPERATIONAL CHECK WAS GOOD. LOTS REPORTED THE RIGHT SIDE AUTOFEATHERED FLIGHT ON FINAL WITH PROPS FULL FORWARD WHEN INCREASING POWER.SDR GLBA200901093Switch · dirtySIGNIFICANT EVENT - PILOTS REPORTED THAT THE RT ENG AUTOFEATHERED IN FLIGHT AND CAUSED SURGES AND EXTREME YAWING MOTION. MX CLEANED AFX SWITCHES IAW BMM 61-21-01-201. OPS CHECKS WERE OK.SDR GLBA200910092Switch · out of adjustON FINAL APPROACH THE PILOTS REPORTED THAT THE NR 2 ENGINE BEGAN TO AUTO-FEATHER AT 500 LBS OF TORQUE. MX ADJUSTED THE LT AND RT AUTOFEATHER ARMING SWITCHES IAW B1900D MM 61-21. OPS CHECK WAS GOOD.SDR GLBA200901051Autofeather Sys · malfunctionedSUSPECTED AUTOFEATHER - ACFT.202UX SIGNIFICANT EVENT FLT NR 5028 "DEN" 01/04/08 UPON FINAL APPROACH THE PILOTS REPORTED THAT THE LT ENGINE BEGAN CYCLING IN/OUT OF AUTOFEATHER AS PWR WAS ADDED FROM 500 TO 1000 LBS. MX INSPECTED SECURITY OF MICROSWITCHES AND SDR QXEA2008122401254Autofeather Sys · malfunctionedSEA - AUTOFEATHER SELECT DID NOT INDICATE ON EICAS DISPLY DURING T/O ROLL. ABORTED AT 60 KIAS, AND RETURNED TO THE GATE. INTERROGATED CDS, FOUND CODES 64 AND 70. PERFORMED AUTOFEATHER TEST IAW AMM TASK 61-20-00-710-801. FAULTS CLEARED IN CDS. NO FURTHER MSDR 15HA0858014O-Ring · leakingDURING THE TAKEOFF ROLL DEPARTING, ENROUTE, THE NR ONE ENG AUTO-FEATHERED. THE CREW ABORTED THE TAKEOFF AND RETURNED TO BASE. MX PERSONNEL OBSERVED A LARGE AMOUNT OF OIL AROUND THE FRONT OF THE PROPELLER. FURTHER INSP REVEALED A FAILED O’RING BENEATH THE FESDR CA090105014Autofeather Sys · malfunctioned(CAN) DURING CLIMB THE ENGINE TORQUE DROPPED TO 22 PERCENT AND THEN ZERO. THE ENGINE WAS SECURED AND THE A/C RETURNED TO THE POINT OF DEPARTURE, WHERE A SINGLE ENGINE LANDING WAS PERFORMED. POST FLIGHT TROUBLESHOOTING LED TO THE REPLACEMENT OF THE AUTO FEATHSDR QXEA2008121201236Unknown · unknownSEA - ABORTED TAKEOFF AT 90 KNOTS DUE TO FAILURE OF AUTOFEATHER TO ARM (THERE WAS NO ANNUNCIATION ON ED). RETURNED TO THE GATE. COMPLIED WITH OPS TEST OF PROP AUTOFEATHER AND UPTRIM SYSTEM IAW AMM TASK 61-20-00-710-801. TEST IS GOOD. GROUND RAN ACFT AT RATSDR QXEA2008121001231Autofeather Sys · malfunctionedMSO - AUTO FEATHER FAILED TO ARM ABORTED TAKEOFF AT 65 KTS. RETURN TO THE GATE. PERFORMED Q400 AMM TASK 61-20-00-710-801 AND TASK 61-20-00-710-802 CW STATIC AND ENGINE'S RUNNING, NO DEFECTS NOTED. PERFORMED SIM TAKEOFF ON TAXIWAY, AUTOFEATHER ARMED NORMALLYSDR GLBA200812011Autofeather Sys · malfunctionedSIGNIFICANT EVENT - FLIGHT 5128 EN ROUTE FROM PIR TO DEN DURING APPROACH INTO DENVER ON FINAL AT ABOUT 6000FT & 160KTS. THE NR 2 ENGINE AUTOFEATHERED 3 TIMES WITH TORQUE AT 1200, GEAR DOWN AND PROPS 1700 RPM. MAINTENANCE PERFORMED AN OPERATIONAL RUNUP OF THESDR QXEA2008112101193Signal Cond Unit · malfunctionedPDX - TESTING THE AUTO FEATHER SYS NR 1 PROP WILL FEATHER IMMEDIATELY WHEN MOVING THE TEST SWITCH FROM OFF TO NR 1 WITHOUT RELEASING SWITCH. REMOVED NR 1 SIGNAL CONDITION UNIT, REF PWC 123 MM 72-01-10, PARA 5 A.1. INSTALLED SERVICEABLE SIG COND UNIT. OPS TESDR SWIA200820477Signal Cond Unit · malfunctionedFLT 5427 - ABORTED TAKEOFF DUE TO INADVERTENT AUTOFEATHER OF NR 1 ENGINE. REPLACED LEFT TORQUE PROBE AND TORQUE SIGNAL CONDITIONER PN ON 30005-0000-57, PN OFF 30005-0000-52, SN ON MM4720, SN OFF 4225.SDR QXEA2008110601168Autofeather Sys · malfunctionedGEG - AUTOFEATHER FAILED TO ARM ON TAKEOFF ROLL. ABORTED TAKEOFF. RETURNED TO GATE. PERFORMED OPERATIONAL TEST OF THE PROP AUTOFEATHER AND UPTRIM SYSTEM IAW Q400 AMM TASK 61-20-00-710-801. OPS CHECK GOOD. A/C OK FOR SERVICE. NO PARTS REPLACED.SDR QXEA200801061Autofeather Sys · malfunctionedAUTO FEATHER FAILED TO ARM ON TAKEOFF. ABORTED TAKEOFF AT 80 KNOTS. MAINT FOUND 64,70,494 ON ENG 1 CHAN A AND CODE 494 ON CHAN B. CLEARED PEC CODES IAW Q400AMM TASK 61-20-36-070-801 FOR BOTH ENGINES. PERFORMED OPS TEST OF AUTOFEATHER SYSTEM IAW AMM TASK 61-20-SDR QXEA200800995Propeller · malfunctionedPDX NR 2 PROPELLER TOOK LONGER THAN NORMAL TO COME OUT OF FEATHER. ALL COCKPIT INDICATIONS WERE NORMAL. AFTER ABOUT 40 SECONDS THE PROPELLER CAME OUT OF FEATHER. MX GROUND RAN THE ACFT AND PERFORMED NUMEROUS UNFEATHERS. COULD NOT DUPLICATE 40 SECOND TIME. SDR GLB2008F00018Switch · out of adjustSUSPECTED AUTOFEATHER EVENT. DURING CRUISE, THE PILOTS REPORTED THAT THE LT AUTOFEATHER DISARMED IN FLIGHT AND NEVER REARMED AT ANY POWER SETTING. MAIT ADJUSTED THE LT POWER LEVER SWITCH. OPS CHECK OF THE AUTOFEATHER SYS GOOD IAW MM 61-20-00. (K)SDR GLB2008F00015Autofeather Sys · malfunctionedACFT 211GL SUSPECTED AUTOFEATHER FLT 5127 "PIR" 08/15/08 PILOTS REPORTED DURING FINAL DESCENT INTO LANDING, THAT POWER WAS REDUCED TO APPROX 500 LBS WITH PROPS FULL FORWARD. DURING POWER REDUCTION ONE OR BOTH PROPELLERS APPEARED TO FEATHER, THEN SURGE. POWERSDR CA080902006Autofeather Sys · malfunctioned(CAN) THE TAKEOFF WAS ABORTED DUE TO THE NR 2 ENGINE ANALOGUE TORQUE INDICATION BEING STUCK AT 120 PERCENT. THE NR 2 ENGINE AFU WAS REPLACED AND THE ACFT RELEASED FOR SERVICE.SDR CA080902009Autofeather Sys · unknown(CAN) DURING CLIMB THE RT ENGINE PROPELLER FEATHERED UNCOMMANDED. PILOT SHUTDOWN THE ENGINE AND RETURNED TO AIRPORT, WHERE AN UNEVENTFUL SINGLE ENGINE LANDING TOOK PLACE. THE AFU IS SUSPECT. MFG WILL CONTINUE INVESTIGATING THE EVENT AND ADVISE OF ROOT CAUSE ONSDR GLB2008F00014Autofeather Sys · malfunctionedACFT 251GL - 07/21/2008 - FLIGHT 5133 - PILOTS REPORTED THAT UPON DEPARTURE FROM LBL TO DEN THE AUTOFEATHER ACTIVATED IN FLIGHT AS POWER WAS BEING INCREASED. MAINTENANCE PERFORMED OPERATIONAL CHECKS ON AUTOFEATHER SYSTEM IAW BEECH 1900D MM 61-21 WITH NO DEFECSDR P4Y2008F00001Computer · failedPILOT REPORTED AUTO FEATHER TEST INOPERATIVE ON THE LT ENGINE. MAINTENANCE REPLACED THE AUTO FEATHER COMPUTER AND RETURNED THE AIRCRAFT TO SERVICE. (K)SDR QXEA200800701Autofeather Sys · malfunctionedPDX - FLIGHT 2241 - NR 2 ENGINE FAILS AUTO FEATHER TEST. FOUND PEC FAULT CODES 402, 422 AND 424. CLEARED BY FIM. PERFORMED TWO GROUND RUNS AND 6 AUTO FEATHER TESTS WITH NO DEFECTS. RETURNED TO SERVICE. NO PARTS REPLACED. (A)SDR HNA2008F00015Autofeather Sys · failedABORTED TAKEOFF, RETURNED TO GATE. MX GROUND RAN AIRCRAFT AUTOFEATHER ARMED AT APPROX 80 PERCENT, TORQUE AT 40 DEGREES, PLA OK FOR SERVICE. AUTOFEATHER HAD FAILED TO ARM AT 85 PERCENT TORQUE ON TAKEOFF ROLL. (K)SDR HNA2008F00023Autofeather Sys · inoperativeAUTOFEATHER WOULD NOT ARM DURING TAKEOFF. RETRIMMED BOTH ENGINES AUTOFEATHER ARMED AT 40 DEGREES OF P/LEVER ANGLE WITH A TORQUE OF 74 PERCENT. OPS CHECK GOOD. (K)SDR PDL2008F00000Autofeather Sys · failedAUTOFEATHER FAIL LIGHT ILLUMINATED. AUTOFEATHER COMPUTER REPLACED AND AC RETURNED TO SERVICE. (K)SDR HNA2008F00013Autofeather Sys · inoperativeABORTED TAKEOFF DUE TO AUTOFEATHER NOT ARMING ON THE TAKEOFF ROLL, ABORTED TAKEOFF AT 90-95 KNOTS, RETURNED TO GATE. GROUND RAN AC AUTOFEATHER ARMS AT ABOUT 74 PERCENT TORQUE, OK FOR SERVICE. (K)SDR QXEA200800535Switch · malfunctionedPDX - FLIGHT 2193, AUTOFEATHER ARM LIGHT FLICKERING AND SHOWING AS "ARM" WITHOUT THE BUTTON BEING SELECTED. DURING CLIMB AND CRUISE. MAINTENANCE REPLACED THE AUTOFEATHER SELECT SWITCH. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.SDR QXEA200800518Autofeather Sys · malfunctionedSEA - FLIGHT 2299 - ABORTED TAKEOFF AT 60 KNOTS FOR THE AUTOFEATHER WOULD NOT ARM. RETURNED TO THE GATE. MAINTENANCE FOUND FAULT CODE 64. PERFORMED FIM 61-20-02-810-834. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. NO PARTS REPLACED.SDR HNAA0800161Relay · faultyON TAKEOFF ROLL, AUTO FEATHER ARM LIGHT EXTINGUISHED.SDR HNAA0800150Relay · failedAUTO FX WOULD NOT ARM DURING TAKEOFF.SDR QXEA200800454Potentiometer · out of adjustSEA - AUTOFEATHER SLOW TO ARM. ARMS ABOUT 90 PERCENT TORQUE. MAINTENANCE PLACED ON MEL 61-2. AIRCRAFT RETURNED TO SERVICE. MEL CLEARED BY RIGGING THE ARMING POTS IAW 76-10-15-820-802. NOW ARMS AT 78-80 PERCENT. AIRCRAFT RETURNED TO SERVICE. NO PARTS REPSDR QXEA200800450Switch · looseSEA - AUTOFEATHER SWITCH APPEARS LOOSE AND TAKES LONGER THEN NORMAL TO ARM. MAINTENANCE SECURED THE SWITCH. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. NO PARTS REPLACED.SDR QXEA200800453Control Unit · malfunctionedSEA - ON TAKEOFF, ABORTED AT 70 KNOTS, DUE TO AUTOFEATHER FAILED TO ARM. RETURNED TO THE GATE. MAINTENANCE REPLACED THE TSCU AND THE AUTOFEATHER SWITCH. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
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