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 HNAA20100300076Switch · stuckAUTO FEATHER FILED TO ARM ON TAKEOFF. R & R NR1 AND NR2 TSEU AND NO FIX. FOUND MICRO SWITCH 6121S9 STUCK, R & R SWITCH, OPS CHECKED GOOD IAW MM 76-10-13.SDR GLBA20100323FCable · out of rigSUSPECTED AUTOFEATHER - PILOTS REPORTED THAT UPON SHORT FINAL WITH TORQUE BETWEEN 800-1000, PROPELLER WENT IN AND OUT OF FEATHER. TORQUE SEARCHED TO BETWEEN 1600-1800 LBS. THE RT SIDE WAS THE ONE THAT SURGED. MX ADJUSTED POWER LEVER CABLES AT THE GREEN ARM ANDSDR CA100521002Autofeather Sys · uncontrollable(CAN) DURING TAKEOFF, AN UNCOMMANDED AUTOFEATHER OCCURRED. PILOT MADE AND EMERGENCY LANDING AT DEPARTURE AIRPORT. FDR IS UNDER REVIEW BY MANUFACTURER.SDR SWIA201023884Switch · malfunctionedTHE LEFT AUTO FEATHER TEST SWITCH STUCK IN THE TEST POSITION ON TAKEOFF RESULTING IN OVER TORQUE. (FLT 7759) REPLACED SWITCH, RIGHT PROP HUB AND BLADES.SDR QXEA2010022200134Governor · malfunctionedNR 2 ENG WON'T COME OUT OF FEATHER, NO OTHER CAUTIONS OR ABNORMALITIES. NO OVERTEMP OR OVER TORQUE. SHUTDOWN ENG. REPLACED NR 2 PROP OSG IAW TASK 61-20-000-801 & TASK 61-20-26-400-801. OPS CKS NORMAL. ACFT RETURNED TO SERVICE.SDR GUUA93861021410APressure Switch · failedDURING FINAL APPROACH RT ENGINE GOES IN AND OUT OF FEATHER MULTIPLE TIMES. REPLACED AUTOFEATHER HIGH PRESSURE SWITCH.SDR MASA2010012600091Pump · leakingNR 2 AUX FEATHER PUMP LEAKING. REMOVED AND REPLACED NR 2 AUX FEATHER PUMP, OPS CHECK GOOD.SDR MASA2010012000055Unknown · slowNR 1 PROP VERY SLOW COMING OUT OF FEATHER. OPS CHECK NORMAL.SDR SWIA201023499Signal Cond Unit · failedFLT 6645 - AFTER LANDING, RIGHT PROP WENT INTO UNCOMMANDED FEATHER. REPLACED TQ SIGNAL CONDITIONER.SDR GLBA200912211Autofeather Sys · malfunctionedAUTOFEATHER SYS WOULD NOT ARM ON LT ENGINE DURING T/O WITH T/O POWER SET.SDR SWIA200923354Solenoid Valve · malfunctionedNR 2 PROPELLER FEATHERED INADVERTENTLY AND THEN CAME OUT OF FEATHER. (FLT 6638) REPLACED RIGHT ENGINE FEATHER SOLENOID VALVE, REPAIRED GROUNDING WIRE TERMINAL, CLEANED CONNECTORS AT TORQUE SIGNAL CONDITIONER. ADJUSTED HALF TURN ON PCU CONTROL ROD.SDR QXEA2009121601060Controller · out of adjustAFTER PUSHBACK NR 1 PROP TOOK OVER A MINUTE TO UNFEATHER AFTER THE CONDITION LEVER WAS BROUGHT TO MAX. IT THEN TOOK ANOTHER 30 SECONDS TO FULLY UNFEATHER. PERFORMED FUNCTIONAL TEST OF THE PROP ELECTRONIC CONTROLLER - CALIBRATION PROCEDURE IAW AMM TASK 61-20-SDR 2009FA0001022Line · brokenLT ENG GOVERNOR UN-FEATHERING ACCUMULATOR OIL LINE BROKE AT THE FLARE OF THE FITTING AT THE GOVERNOR. PROPELLER FEATHERED UN-CONTROLLED. TAKEOFF WAS ABORTED. TUBE IS ALUMINUM, THE 'B' NUT IS ALUMINUM, AND IT WAS NOTED THE SLEEVE WAS MAGNETIC/FERROUS.SDR GLBA20091202BTransmitter · malfunctionedRT ENG WENT INTO AND OUT OF FEATHER ON SHORT FINAL. MX TROUBLESHOT THE SYS AND FOUND THE TORQUE INDICATION BAD. MX REMOVED AND REPLACED THE TORQUE TRANSMITTER IAW MM 77-10-00. OPS CHECK OF THE AUTOFEATHER SYS WAS GOOD IAW MM 61-20-00.SDR GLBA20091130GAutofeather Sys · malfunctionedSUSPECTED AUTOFEATHER - PILOTS REPORTED THE RT PROP AUTOFEATHERED IN FLIGHT WHILE REDUCING TORQUE FROM 2500 LBS TO 500 LBS. TOR4QUE LEVELS WERE EVEN THROUGHOUT PWR REDUCTION. MX ADJUSTED THE FLIGHT IDLE TORQUES ON THE RT AND LT ENG IAW MM 76-10-00. OPS CHECSDR GLBA200911301Linkage · out of adjustRT AUTO FEATHER ENGAGED ON APPROACH TO LANDING AT 780 FT AGL AS PWR WAS INCREASED FROM IDLE THROUGH 600LBS OF TORQUE. WHEN THE AUTO FEATHER ENGAGED IT WENT IN AND OUT OF FEATHER SEVERAL TIMES BEFORE MORE PWR WAS APPLIED AND THE AUTO FEATHERING CYCLE STOPPED OSDR GLBA20091127091Autofeather Sys · malfunctionedSUSPECTED AUTOFEATHER - UPON APPROACH, THE PILOTS REPORTED THAT THE RT PROPELLER AUTOFEATHERED WITH TORQUE AT APPROX 1000 LBS. MX PERFORMED THE AUTOFEATHER OPERATIONAL CHECK 5 TIMES AND ALL INDICATIONS WERE WELL WITHIN LIMITS. NO DEFECTS NOTINE IN DURING THE SDR SWIA200923223Switch · dirtyLEFT ENGINE FEATHERS UNCOMMANDED. (FLT 6200)CLEANED MICROSWITCHES.SDR QXEA2009101900826Autofeather Sys · malfunctionedAUTO FEATHER DID NOT PASS DAILY CHECK. CYCLED POWER TO A/C AND PERFORMED AUTOFEATHER OPS TEST IAW AMM TASK 61-20-00-710-801. OPS TEST GOOD. NO FURTHER DEFECT. RETURNED TO SERVICE. NO PARTS REPLACED.SDR QXEA2009101900823Autofeather Sys · malfunctionedON TAXI OUT, THE AUTOFEATHER SWITCH WAS SELECTED AND THE ANNUNCIATOR SELECT LIGHT WAS ILLUMINATED. BUT THE AUTOFEATHER WAS NOT SHOWN SELECTED ON THE ED. CK CDS, FOUND F/C 70A: NR 1 PROP, 72B: NR 2 PROP. C/W PEC F/C CLEAR IAW AMM 61-20-36-070-801. C/W OPS CK SDR HNAA2009100700308Switch · malfunctionedAUTO FEATHER SYS FAILED TO ARM AT APPROX 60 KNOTS. AC ABORTED TAKEOFF AND RETURNED TO BLOCKS. REMOVED AND REPLACED MICRO-SWITCHES, 6121-S12, AND 6121-S13. OPS CK GOOD.SDR HNAA2009100600305Relay · defectiveAUTO FEATHER DID NOT ARM ON T/O ROLL. RETURNED TO GATE. REMOVED AND REPLACED RELAYS 6121-K3, AND 6121-K4. OPS CK GOOD.SDR SWIA200922709Unknown · malfunctionedAFTER LANDING, WAS UNABLE TO GET POWER LEVERS INTO REVERSE. APPLIED BRAKES AND BLEW NR 1 AND NR 3 TIRES. (FLT 7772) REPLACED ALL MAIN WHEEL ASSYS IAW EMB MM 32-44-02. PERFORMED FUNCTIONAL CHECK OF PROPELLER REVERSE SYSTEM IAW EMB MM 61-20-00, NO FAULTS FOUSDR JJBA200961609Switch · stuckAFTER TAKE-OFF AT APPOX.350 FT OFF THE GROUND, NR 2 PROP BEGAN TO CYCLE IN AND OUT OF FEATHER. CREW PULLED BACK POWER, AND RETURNED TO FIELD. MAINTENANCE CREW REMOVED AND REPLACED NR 2 TORQUE SIGNAL CONDITIONER UNIT, DID A TEST FLIGHT, TEST FLIGHT FAILED. SAMSDR CA090916001Beta Switch · failed(CAN) DURING A ROUTINE CARGO FLIGHT, THE CREW REPORTED AN INDICATION OF UNCOMMANDED FEATHERING OF THE #2 ENGINE IN FLIGHT. THE UNCOMMANDED PROP FEATHER CHECK WAS COMPLETED AND THE ENGINE WAS SHUT DOWN. AFTER SHUT DOWN THE #2 BETA LIGHT ILLUMINATED STEADILY, INSDR CA091006003Accumulator · discharged(CAN) DURING ROUTINE MULTI-ENGINE FLIGHT TRAINING PREOCEEDURES, ONE ENGINE WAS SHUTDOWN AND FEATHERED TO SIMULTE AN ENGINE FAILURE. NORMAL PROCEDURE FOR GETTING ENGINE TO ROTATE FOR A RESTART IS TO MOVE PROP CONTROL LEVER FROM FEATHERED POSITION TO FULL FINE PSDR TRBA2009077Autofeather Sys · failedENG NR 1 FAILED ON UPWIND AT 400 AGL AFTER TAKEOFF. NO MASTER CAUTION OR MASTER WARNINGS. FOLLOWED AOM VOL 1 PROCEDURES AND RETURN FOR LANDING. EMERGENCY DECLARED. PERFORMED FDR DOWNLOAD IAW ETN NR E2-31-030R2. PERFORMED PROCEDURE OF READING EEC MEMORY FAULSDR HNAA2009081500255Unknown · malfunctionedTHE AUTOFEATHER WOULD NOT ARM ON TAKEOFF ON AIRCRAFT 941HA. MAINTENANCE COULD NOT DUPLICATE WITH GROUND RUN IAW DASH 8 MM 71-00-00. NOTED: AUTOFEATHER / POWER UPTRIM OPERATES NORMALLY. CLEANED AND LUBED LAYSHAFT MICRO SWITCHES AS PRECAUTION, CHECKED PSEC, NSDR GLBA20090808AAutofeather Sys · malfunctionedRT AUTOFEATHER ARM ANNUNCIATOR DID NOT ARM WHEN POWER APPLIED FOR TAKEOFF. ABORTED TAKEOFF AND RETURNED TO GATE.SDR HNAA2009080900245Relay · malfunctionedON 8/1/2009 AT PHL, AUTO FEATHER DID NOT ARM DURING TAKEOFF ROLL. TORQUE INDICATED 85 PERCENT. SBY MAINTENANCE FOUND MICRO SWITCH 6121-S13 TO WORK INTERMITTENTLY. REMOVED AND REPLACED SWITCH IAW AMM 76-10-13. GROUND RAN AIRCRAFT IAW SRT MANUAL NO FIX. ISOSDR HNAA2009080900242Autofeather Sys · malfunctionedDURING TAKEOFF ROLL, AUTOFEATHER DID NOT ARM. REJECTED TAKEOFF. SBY MAINTENANCE CLEANED AND INSPECTED THROTTLE LAY SHAFT MICRO SWITCHES, NO DEFECTS NOTED. GROUND RAN, PERFORMED AUTO FEATHER RUN IAW -8 RUN-UP MANUAL, OPS CHECK GOOD, NO DEFECTS.SDR SWIA200922249Switch · malfunctionedNR 1 ENGINE NP WENT TO 111 PERCENT ON POWER LEVER INCREASE. (FLT 6817) REPLACED AUTO FEATHER SWITCH AND PROPELLER ASSEMBLY.SDR HNAA2009072900230Relay · failedAUTOFEATHER DID NOT ARM DURING TAKEOFF ROLL. ABORTED TAKEOFF. C/W AUTOFEATHER TEST, SYSTEM OPS NORMALLY. DNAA INFO PER MP&P LOGIC DIAGRAM STEP 1. INSPECTED P/L MICROSWITCHES FOR CORRECT OPERATION. NO DEFECTS NOTED. CLEANED C/P'S AT TSCU. REMOVED AND REPSDR CA090727011Linkage · out of rigLOCAL TEST FLIGHT. ENGINE SHUTDOWNS AND RESTARTS PERFORMED. NR 1 ENG DEVELOPED A RPM FLUCTUATION. WANDERING 4-500 RPM. ENGINE MONITORED. SEVERAL CHECKS PERFORMED. ENGINE SHUTDOWN AND SECURED IAW COMPANY SOP. ENGINE INOP PROCEDURES FOLLOWED. UNEVENTFUL LASDR CA090727012Pump · unserviceable(CAN) NTS TEST FUNCTION FAILED ON PREFLIGHT CHECK FOR NR 1 ENGINE. UNFEATHER PUMP NOT FUNCTIONING WHEN AIR-START MODE SELECTED, 24 VOLTS PRESENT AT CONNECTOR.SDR HNAA2009072900231Relay · failedDURING TAKEOFF RUN, AUTOFEATHER DID NOT ARM. INSPECTED P/L MICRO SWITCHES FOR CORRECT OPERATION. NO DEFECTS NOTED. CLEANED C/P'S AT TSCU. REMOVED AND REPLACED RELAY 6121-K5. GROUND RAN, A/C OPS CHECK GOOD.SDR HNAA2009072300226Relay · failedAUTO FEATHER FAILED TO ARM DURING TAKEOFF RUN. REMOVED AND REPLACED RELAY 6121-K5. GROUND RAN ACFT IAW MX RUN UP MANUAL AND DASH-8 MM CHAP 61. AUTO FEATHER ARMS CORRECTLY, CLEAR MEL.SDR CA090625007Line · cracked(CAN) PY LINE CRACKED AT FLARE FITTING AT PROP GOVENOR ATTACH POINT, ENGINE DECREASED TO IDLE.SDR GLBA200906221Switch · out of adjustPILOTS REPORTED THE NR 1 ENGINE WAS GOING IN AND OUT OF FEATHER WHEN APPLYING POWER ON DESCENT. MX COMPLIED WITH FLEET CAMPAIGN DIRECTIVE 1900-08-61-01. MX ADJUSTED THE NR 1 AUTOFEATHER SWITCH IAW FLEET CAMPAIGN DIRECTIVE 1900-08-61-01. OPS CHECK WAS GOOD.SDR QXEA2009061500445Autofeather Sys · malfunctionedSEA - AUOFEATHER FAILED TO ARM WHEN SELECTED. NOTED PREVIOUS MTX OF AUTOFEATHER SWITCH. CDS NOTED UNSUCCESSFUL TEST, PERFORMED SUCCESSFUL AUTOFEATHER TEST IAW AMM 61-20-00-805. PERFORMED 2 ENGINE STARTS W/ NO DEFECT NOTED. CDS MSGS CLEARED. RETURNED TO SESDR 3LYA090601Actuator · slowNR 1 PROP ASSY DOES NOT FULLY FEATHER WHEN SHUTDOWN. MX REMOVED AND REPLACED THE NR1 PROP HUB IAW 61-10-06-000-801. ALL SIX PROP BLADES WERE CHANGED AS A PRECAUTIONARY MEASURE.SDR GLBA20090522GPressure Switch · wornAFX ANNUNCIATORS AND REPEATER LIGHTS WOULD NOT ILLUMINATE WHEN POWER ADVANCED ABOVE 1000 FT LBS ON TAKEOFF ROLL. MAINT REMOVED AND REPLACED THE HIGH PRESSURE SWITCH CONNECTOR PLUG IAW GMM 9.3.0. MAINT ALSO REMOVED AND REPLACED THE NR1 AUTOFEATHER HIGH PRESSUSDR NSVA2009025Switch · failedLT PROPELLER DIDN`T UNFEATHER ALL THE WAY WHEN TAKING THE RUNWAY. LT PROPELLER APPEARS UNFEATHERED (NORMAL STATUS LIGHTS). WHEN ADDING POWER FOR TAKEOFF, LT PROPELLER FEATHERED ITSELF. ON TAXI BACK TO THE GATE, PROP REMAINED IN FEATHER. REMOVED AND REPLACESDR CA090519004Valve · malfunctioned(CAN) AIRCRAFT C-GJVC DC-885B RIGHT HAND ENGINE SN: P70246C TSN: 8099.2 CSN: 6514 TSO: 1821.3 LOST COMPLETE POWER ON RIGHT HAND ENGINE 12 MILES OUT ON FINAL APPROACH. NO NTS LIGHT CAME ON. THE AIRCRAFT WAS DIFFICULT TO CONTROL. THE STOP AND FEATHER WAS PULLSDR GLBA200905111Switch · malfunctionedPILOTS REPORTED THAT THE AUTOFEATHER SYSTEM ENGAGED AND CYCLED IN FLIGHT ON FINAL WITH PROPS FULL FORWARD AS POWER WAS REDUCED TO JUST JUNDER 1000 LBS TORQUE ON NR 1 ENGINE. MAINTENANCE REMOVED AND REPLACED THE LOW PRESSURE SWITCH IAW BMM 61-21-01. OPERATIONALSDR 2009FA0000363Valve · malfunctionedTHE LT ENGINE BEGAN TO SURGE ON NIGHT CROSS-COUNTRY TRAINING FLIGHT. AFTER CHECKING THE ENGINE, MFG WAS CONTACTED AND SAID THEY HAVE HAD SEVERAL REPORTS OF THIS SAME THING HAPPENING. THERE IS ARCING BETWEEN THE MALE PINS ON THE VALVE AND THE FEMALE CONNECTIOSDR GLBA200924042Circuit Board · malfunctionedPILOTS REPORTED THAT UPON TAKEOFF POWER UP ABOVE 2500 LBS. FOR TAKEOFF THE AFX DISABLE LIGHT ILLUMINATED AND THE NR 2 ENGINE STARTED TO TRANSITION IN AND OUT OF FEATHER. MAINTENANCE REMOVED AND REPLACED THE A123 PRINTED CIRCUIT BOARD PER GMM 9.2.0 & OPERATIONASDR GLBA200904225Pressure Switch · wornON APPROACH AT 500 LBS TORQUE, WHILE LEVELING ALTITUDE AND ADVANCING POWER THE R/H ENGINE ATTEMPTED FEATHER CAUSING CYCLES SIMILAR TO AUTOFEATHER TEST. MAINTENANCE REMOVED AND REPLACED THE RIGHT HAND AUTOFEATHER LOW PRESSURE SWITCH AND COMPLIED WITH FCD 1900-0SDR QXEA2009041400261Autofeather Sys · malfunctionedBOI - CONDITION LEVERS WHERE ACCIDENTALLY PULLED PAST 850 AFTER TAKEOFF. LOST THE PEC'S AND RETURN TO THE FIELD. LANDING UNEVENTFUL. INTERROGATED CDS FOUND FAULT CODES 236 AND 260 ON NR 1 AND NR 2 ENGS. C/W FIM TASK'S 61-20-06-810-818 FOR FAULT CODE 260 ANSDR GLBA20090409GSwitch · dirtyPILOTS REPORTED THAT THE RT ENGINE NR 2 PROPELLER VIOLENTLY CYCLES IN AND OUT OF FEATHER. PROPS WERE FULL FWD, IDLE SLOWLY INCREASING, CAUSED YAWING AT 1500 FT ON APPROACH. MX CLEANED POWER LEVER AUTOFEATHER MICROSWITCHES AND PERFORMED OPSL CHECK OF AUTOFEATHE
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