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 QXEA0300615Controller · malfunctionedPSC ON FLIGHT 2101 ABORTED TAKEOFF DUE TO AUTOFEATHER DOES NOT ARM AT TAKEOFF POWER. PERFORMED AUTOFEATHER SYSTEM AND POWER UPTRIM TEST. NO PARTS REPLACED. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.SDR QXEA0300557Relay · inoperativePDX-ON FLIGHT NUMBER 2173, ON TAKEOFF WITH BOTH POWER LEVERS AT TAKEOFF POSITION AND BOTH TORQUES APPROX 97 PERCENT, AUTOFEATHER ARM LIGHT FAILED TO ILLUMINATE. DUPLICATED PROBLEM, AUTOFEATHER WOULD NOT ARM OR TEST, REPLACED RELAYS 6121 K-5 & 6121 K-19. OPERSDR CA030516002Circuit Board · inoperative(CAN) DURING TAKE-OFF ROLL, PILOT NOTICED THAT AUTO-FEATHER SYSTEM DID NOT ILLUMINATE TO IDENTIFY ARM FUNCTION. PILOT INITIATED REJECTED TAKE-OFF, ADVISED ATC & SUBSEQUENTLY RETURNED TO AIRPORT. MAINTENANCE WAS CONTACTED TO INSPECT AND TROUBLESHOOT AUTO FEATSDR 2003FA0000685Fork · crackedPITCH CHANGE FORK WAS CRACKED, POSSIBLY DUE TO EXCESSIVE ENGINE VIBRATION. PROPELLER HAD 200 HOURS SINCE LAST OVERHAUL. CUSTOMER WAS ADVISED TO HAVE PROPELLER, DYNAMICALLY BALANCED TO AVOID ANY FURTHER DAMAGE TO PROPELLER ASSEMBLY.SDR 142691Connector · looseFLIGHT 4550 FWA-PIT. DURING TAXIING FROM GATE THE AUTOCOARSEN CAUTION LIGHT ILLUMINATED AFTER THE AUTOCOARSEN SYSTEM WAS SELECTED ON. A/C RETURNED TO GATE AND WAS TAKEN OUT OF SERVICE AT 0500 4-24-03. FLIGHTS SWAPPED TO A/C 101CN. DURING TROUBLESHOOTING FWSDR SIMA200311103Actuator · brokenSGF - FLT 3617 - DURING APPROACH THE RIGHT ENGINE STARTED TO VIBRATE SEVERLY. CREW SHUT DOWN THE ENGINE AN EMERGENCY WAS DECLARED AND AIRCRAFT WAS LANDED WITH NO OTHER INCIDENTS. DURING POST FLIGHT ONE BLADE ON THE RIGHT PROPELLER DID NOT GO INTO FEATHER. MSDR MALA030238Transducer · failedDURING FLIGHT 3119, RT PROP OIL PRESSURE FLUCUATED THEN DROPPED TO ZERO INFLIGHT. TEMPERATURE AND LIGHT OPERATED NORMAL. RT PROP OIL PRESSURE FLUCTUATION BETWEEN 0-200 PSI OCCASIONALLY STEADY AT 100 PSI IN THE GREEN ARC. THEN WENT TO PSI AND STAYED. AIR RESDR RAIA00304098Beta Switch · failedSTL- RIGHT ENGINE BETA LIGHT ILLUMINATED WHEN TAKEOFF POWER APPLIED. MAINTENANCE REMOVED AND REPLACED BETA SWITCH, OPS CK OK.SDR RAIA00303078Pressure Switch · inoperativeSTL- LEFT ENGINE GREEN BETA LIGHT WILL NOT ILLUMINATE. MAINTENANCE REMOVED AND REPLACED NUMBER ONE ENGINE BETA PRESSURE SWITCH, LEAK AND OPS CHECK OK.SDR 048803Solenoid · stuckUPON LANDING ON FLIGHT 5487 IN PHILADELPHIA PENNSYLVANIA, THE CREW THOUGHT IT WAS A DESTABILIZING FLARE DUE TO LEFT QUARTERING TAILWIND. THEY WENT AROUND TO LAND ON A DIFFERENT RUNWAY TO FIND IN THE FLARE IT WAS THE LEFT PROP THAT WAS IN GROUND FINE WHEN THE PSDR CA030317008Propeller · failed(CAN) ON LANDING ON A CLEARED RUNWAY WITH SNOW & ICY PATCHES, SKY CLEAR & WIND CALM, PILOT HAD DIFFICULTY CONTROLLING A/C. AS A/C SLOWED DOWN RUDDER CONTROL BECAME INEFFECTIVE CAUSING A/C TO DRIFT INTO RT SNOW BANK. UPON INVESTIGATING LT PROP, FOUND IN A FINESDR QXEA0300337Beta Switch · malfunctionedPROPS SET AT 1050 FOR BRAKING AND POWER LEVELS REDUCED TO FLIGHT IDLE NR 1 ENGINE TORQ STARTED TO SURGE +/- 5 PERCENT FROM 10 PERCENT TORQUE, AND PROP RPM INCREASED. TROUBLESHOOTING NOTED NR 1 ENGINE FAILED OPERATION TEST OF BETA LOCKOUT SYSTEM DUE TO POWER LSDR CX7A194J33Governor · defectiveIMMEDIATELY AFTER T/O NOTICED AN UNUSUAL YAW, NOTED LEFT PROP RPM WAS ERRATIC. IT WOULD NOT EXCEED 1340 RPM. T/M LOCKOUT HAD NO AFFECT PER CHECKLIST. ALL OTHER ENGINE INDICATIONS NORMAL.SDR VNAA0302027Pressure Switch · failedDURING FLIGHT, THE CREW RECEIVED A RIGHT HAND PROP OIL PRESSURE LOW CAS MESSAGE. ALL OTHER ENGINE INDICATIONS WERE NORMAL AND WITH MAINTENANCE CONTROL, CONCLUDED THERE WAS AN INDICATION PROBLEM. THE CREW REQUESTED PRIORITY HANDLING FROM PHL ATC THEN DIVERTEDSDR 0301282Controller · inoperativeFLIGHT NR 4511 DID NOT GET THE AUTOCOARSEN ARM LIGHT DURING TAKEOFF. CREW ABORTED TAKEOFF AND RETURNED TO GATE. A/C WAS FERRIED TO PIT AND TAKEN OUT OF SERVICE AT 1200. A/C ARRIVED IN PIT AT 1520. PIT MECHANIC REMOVED AND REPLACED AUTOCOARSEN STATUS LIGHT,SDR CA030130002Seal Ring · stuck(CAN) AFTER ENGINE START, THE TORQUE READING INDICATED APPROX 3000 FT/LBS. POWER INCREASES OR DECREASES HAD LITTLE EFFECT. TROUBLESHOOTING WAS PERFORMED. A TORQUE INDICATION SYSTEM CALIBRATION TESTER WAS CONNECTED AND INDICATION WAS NORMAL. A TEST GAUGE WAS SDR 0301281Lamp Socket · unsecureFLT # 4499. durning takeoff did not get autocoursen arm light. crew aborted take-off and returned to gate. found light assy loose in socket. pilot did not notice durning lights check. Mechanic resecured light assy and performed ground run. IAW 61-22-00-5. Ops SDR 0301181Pressure Switch · frozenflt# 4479 during takeoff did not get autocoursen arm light. Crew aborted take off and returned to gate. mechanic performed ground run. iaw 61-22-00-5. ops checked good. A/C returned to service without further incidentSDR 0301161Pressure Switch · frozenFLT 4476, DURING TAKEOFF ROLL, DID NOT GET AUTOCOURSEN ARM LIGHT. CREW ABORTED TAKEOFF AND RETURNED TO GATE. MAINTENANCE PERFORMED GROUND RUNS IAW MM. AFTER AIRCRAFT WARMED, NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE WITHOUT FURTHER INCIDENT.SDR HNAA0300005Switch · inoperativeAFTER TAKEOFF, NR 1 ENGINE TORQUE AND PROP SPEED BEGAN TO FLUX WITH PROP SPEED AT 900 RPM. AIRCRAFT RETURNED TO FIELD. REPLACED SWITCH 6141-S3.SDR PCAA0301015Switch · intermittentBOS-FLIGHT#3852. CREW REPORTED AIRCRAFT ACCELERATES WHEN REVERSE IS SELECTED. MAINTENANCE VERIFIED BETA BACKUP SYSTEM IS ENGAGING, AND REPLACED BETA BACKUP POWER LEVER SWITCH 6141-S3. AFTER TAXIING AIRCRAFT, OPERATIONAL CHECK WAS GOOD. AIRCRAFT RETURNED TO SESDR 046605Switch · out of adjustUPON APPROACH ON FLIGHT 5490, THE AUTOFEATHER SWITCH ARMED ANNUNCIATOR FAILED TO ILLUMINATE. THE AIRCRAFT LANDED WITH NO FURTHER INCIDENT. MAINTENANCE ADJUSTED THE PEDESTAL SWITCHES. NO PARTS WERE USED. NO TEARDOWN REPORT WILL BE REQUIRED.SDR AUS20030015Cable · failed(AUS) AIRCRAFT EXPERIENCED AN UNCOMMANDED INCREASE IN PROPELLER RPM AND FAILED TO RESPOND TO FURTHER COMMANDS. INVESTIGATION FOUND THAT THE STAINLESS STEEL SHAFT END OF THE PROPELLER PITCH CONTROLCABLE HAD FAILED THROUGH THE THREADS LEVEL WITH RODEND LOCATEDNESDR 0212313Computer · failedFLIGHT 4467, UPON TAKEOFF, AUTOCOARSEN WARNING LIGHT ILLUMINATED. PILOT ABORTED TAKEOFF AND RETURNED TO GATE. AIRCRAFT PREPARED FOR FERRY FLIGHT. FWA MECHANIC REMOVED AND REPLACED AUTOCOARSEN COMPUTER AND PERFORMED OPERATIONAL CHECK OF AUTOCOARSEN SYSTEM. SDR CA030106011O-Ring · worn(CAN) DURING ENGINE RUNS FOR FUNCTION CHECKS AFTER PREVIOUS MAINTENANCE, MAINTENANCE PERSONNEL NOTED THAT NR 1 PROP WAS VERY SLOW TO COME OUT OF FEATHER (30 SEC) IF IT WOULD COME OUT OF FEATHER AT ALL. ON NR 1 PROP TRANSFER TUBE FOUND ONE O-RING WORN AND ONE OSDR CA021223001Housing · failed(CAN) ON DESCENT 175 MILES SOUTH OF YZF NR 3 ENGINE RPM DROPPED BELOW 98 PERCENT WITH FLUCTUATION 0.5 PERCENT OUTSIDE LIMITS. WITH ADVANCE OF NR 3 THROTTLE FOR PITCH LOCK CHECK RPM DECAYED. ENGINE PUT TO BED. PROPELLOR VALVE HOUSING DETERMINED TO BE FAULTY, UNSDR CA021223003O-Ring · broken(CAN) PROPELLER WAS LEAKING OIL OUT OF CYLINDER. TRAVELLED TO AIRCRAFT, FOUND PISTON TO CYLINDER SEAL, ITEM 40, IPL FIG 3, APPEARED TO BE TWISTED AND SPLIT. IT FELL OFF OF PISTON WHEN CYLINDER WAS REMOVED. REPLACED SEAL, REINSTALLED CYLINDER, NO LEAKAGE EVIDSDR QXEA0202148Control Unit · failedPDX- RETURNED TO FIELD DUE TO POWER PLANT MESSAGE DURING CLIMB AFTER TAKE OFF. ALL OTHER INDICATIONS NORAML. NO CAUTION LIGHT. AIRCRAFT LANDED WITHOUT INCIDENT. REMOVED AND REPLACED PROPELLER ELECTRONIC CONTROL. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SESDR UHLA110941Controller · inoperativePILOT REPORTED THAT THE AUTOCOARSEN SYSTEM WOULD NOT ARM DURING TAKEOFF ROLL. TAKEOFF WAS ABORTED.SDR UHLA10081Warning Light · illuminatedDURING TAKEOFF ROLL, PILOT REPORTED AT 60 KNOTS THE AUTOCOURSEN LIGHT ON CWP ILLUMINATED. ABORTED AND RETURNED TO GATE.SDR CA021209002Rod End · failed(CAN) ON APPROACH, PILOT'S NOTICED RPM ON LT ENGINE DECAY DOWN TO 93 PERCENT AND THE ITT WENT UP CLOSE TO THE RED LINE. BRINGING THE POWER LEVER BACK MADE NO DIFFERENCE TO THESE CONDITION SO THE ENGINE WAS FEATHERED AND SHUTDOWN WITH AN UNEVENTFUL LANDING. IT SDR UHLA100771Pressure Switch · failedPILOT REPORTS AUTOCOARSEN SYSTEM FAILED ON TAKEOFF ROLL AIRCRAFT RETURNED TO GATE. MECHANIC PERFORMED GROUND RUN AUTOCOARSEN SYSTEM ADJUSTMENT/TEST IAW MM. OPS CHECKED GOOD AT THIS TIME. AIRCRAFT RETURNED TO SERVICE.SDR UHL2002F00009Pressure Switch · inoperativePILOT REPORTS AUTOCOARSEN SYSTEM FAILED ON TAKEOFF ROLL. AIRCRAFT RETURNED TO GATE. MECHANIC PERFORMED GROUND RUN ON AUTOCOARSEN SYSTEM ADJUSTMENT & TEST IAW MM. OPS CHECKED GOOD AT THIS TIME. AIRCRAFT RETURNED TO SERVICE.SDR VNAA0211031Pump · failedDURING TAKE OFF, THE CREW RECEIVED A TAKE OFF CONFIGURATION WARNING ON THE RED WARNING PANEL AND ABORTED TAKE OFF. MAINTENANCE INSPECTED AND THE HIGH PRESSURE PUMP WAS ALLOWING FLUCTUATIONS OF THE PROP BLADE ANGLES. MAINTENANCE THEN REPLACED THE HIGH PRESSURSDR QXEA0202035Panel · failedSEA- ON LANDING APPROACH 1 1/2 NOUTICAL MILES OUT, PROP RPM DESTABILIZED BETWEEN 1020 AND 950 IN TWO SECOND CYCLES ON BOTH ENGINES. AIRSPEED ABOUT 130, TORQUE 13-15%, REDUCED NP NOT SELECTED. ADJUSTING TORQUE DID NOT STOP CYCLES. MOVING CONDITION LEVERS TO 950SDR QXEA0201971Pitch Control · inoperativeMFR-#2 PROP RPM INCRREASED TO 1020 (UNCOMMANDED) FROM 900 CONTROL LEVER SETTING. INCREASED BOTH PROPS TO 1020 THEN RESET TO 900 THEN 850, #2 PROP INCREASED AGAIN TO 1020. FEATHERED #2 PROP. REMOVED AND REPLACED #2 PITCH CONTROL UNIT. OPERATIONAL AND LEAK CHECKSDR 2003F00132Controller · malfunctionedFLT 4472 - CLE-PIT - ABORTED TAKEOFF DUE TO AUTOCOARSEN WOULD NOT ARM DURING TAKEOFF ROLL. TORQUE WAS 90 PERCENT, AIRSPEED BETWEEN 90 AND 100 KNTS AND SWITCH IN THE ON POSITION. CONTRACT MAINTENANCE AND THE FLIGHT CREW PERFORMED THE P3 AND AUTOCOARSEN TEST, SDR ASOA02588Controller · malfunctionedDURING CLIMB OUT, THE LT PROPELLER SPEED REACHED 101.2 PERCENT IN A STEADY STATE. THE CREW SET THE PROPELLER SPEED TO 85 PERCENT FOR CRUISE AND THE PROPELLER SPEED BECAME NORMAL. FLIGHT IDLE WAS SELECTED AND THE PROPELLER WAS FEATHERED. THE AIRCRAFT DIVERTESDR RAIA00211319Pump · malfunctioned5465-BMI- LEFT ENGINE AUTO TAKE- OFF POWER CONTROL WILL NOT TEST. MAINTENANCE DEFERRED PER MEL 73-21-1C SUBSEQUENTLY REMOVED AND REPLACED #1 PROP FEATHER PUMP, OPS AND LK CK OK.SDR GLBA2002176Beta Switch · malfunctionedLEFT TORQUE, PROP, AND FUEL FLOW IND. FLUCTUATE IN FLT. R&R ENGINE BETA LEVER AND LOW PITCH SOLENOID BEARINGSSDR SWIA200211433Pcu · malfunctionedABORTED TO - POSITIONED POWER LEVER, JUST BEYOND FLT. IDLE, LT TORQUE RAPIDLY INCREAASING (TO APPROX. 60 PERCENT TQ). NP DECREASED TO APPROXIMATELY 25 PERCENT THEN RAPIDLY INCREASED TO APPROXIMATELY 70 PERCENT WHILE STILL IN BETA ON THE LT ONLY. REPLACED LT SDR GLBA2002164Controller · out of adjustLEFT PROPELLER 1650 MAX RPM AT TAKE OFF/ADJUSTED LEFT PROP. MAX RPMSDR SWIA200211372Control Unit · malfunctionedDURING CLIMB, RIGHT NP DROPPED TO 96 PERCENT. TURNED OFF EEC WITH POWER LEVER AT FLIGHT IDLE AND CL MAX T6 780, TORQUE 97 PERCENT AND NP 56 PERCENT. WE FEATHERED THE ENGINE PER QRH PRECAUTIONARY ENGINE SHUT DOWN AND DIVERTED TO CYS. REPLACED RT ENGINE PCU ISDR EEJ2002F00004Rod · strippedLT ENGINE WOULD NOT PRODUCE FULL RPM AND PROPELLER WENT TO FEATHER ON NORMAL SHUTDOWN. PROPELLER REMOVED AND TAKEN FOR INSPECTION. FOUND PITCH CHANGE ROD ADJUSTING SCREW AND HOUSING THREADS STRIPPED.SDR AUS20021187Pipe · fractured(AUS) PROPELLER GOVERNOR EXTERNAL OIL PIPE FAILED AT CONNECTION TO THEGOVERNOR.SDR CA021016027Switch · failed(CAN) AIRCRAFT WAS TAXIING AWAY FROM DOCK WHEN FLIGHT CREW DEMANDED REVERSE POWER FROM NR 2 ENGINE. IT FAILED TO RESPOND AND AIRCRAFT HIT THE DOCK WITH FRONT OF RT FLOAT. FAILURE OF PROP TO RESPOND TO POWER LEVER INPUT IS ATTRIBUTED TO THE PROP OVERSPEED TESSDR AUS20021217Ball Joint · sheared(AUS) RH ENGINE CSU BALL JOINT FAILED.SDR AUS20021172Plate · cracked(AUS) PROPELLER CONTROL FEATHER GATE STOP PLATE ASSEMBLY LOCATED IN COCKPIT CONTROL QUADRANT CRACKED.SDR 043349Pcu · failedUPON ARRIVAL INTO PANAMA CITY, FLORIDA ON FLIGHT 5466, THE LT AND RT AUTO FEATHER SYSTEM FAILED CAUSING THE CONDENSER BLOWER TO POP. THE SYSTEM WAS LOOKED AT BY THE PANAMA CITY MAINTENANCE. THE PROBLEM WAS THAT THE PRINTED CIRCUIT BOARD WAS BAD. THE CORRECTIVESDR CA021009029Connector · dirty(CAN) AFTER DEPARTURE FROM AIRPORT THE PILOT OBSERVED ABNORMAL/FLUCTUATING TORQUE AND EGT INDICATIONS FOR LT ENGINE. THE AIRCRAFT RETURNED TO BASE. WIRING CONNECTOR PLUG FOR SRL COMPUTER WAS CLEANED AND SRL COMPUTER WAS RE-CALIBRATED PER DATA SHEET, RUN-UP AND
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