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 ASOA99060Pcu · inoperativeFLT 4927 - ON TAKEOFF ROLL, THE NR 2 ENGINE FAILED TO DEVELP MORE THAN 51 PERCENT TORQUE. NP WAS SLOW TO SPOOL UP. ABORTED TAKEOFF AT INITIAL ROLL. RETURN TO GATE SAFELY AND SWAPPED AIRCRAFT. MAINTENANCE REMOVED AND REPLACED PCU AND CHANGED P3 AIR LINE. GSDR CA990907092Tscu · failed(CAN) TSCU AND TORQUE SENSOR FAILED CAUSING 150 PERCENT OVERTORQUE.SDR QXEA9901436Governor · malfunctionedEAT - AFTER TAKEOFF AND GEAR RETRACTION, THE NR 2 ENGINE EXPERIENCED A UNCOMMANDED AUTOFEATHER. NR 1 ENGINE UPTRIMMED TO 110 PERCENT AND NR 2 ENGINE INDICATED 155 PERCENT TORQUE. RETURNED TO EAT AND ACCOMPLISHED A UNEVENTFUL LANDING. AIRCRAFT CURRENTLY DOWNSDR AU990687Control Cable · wrong part(AUS) LEFT PROPELLER CONTROL CABLE SEIZED. INVESTIGATION FOUND THE CABLE IS USED IN A MARINE APPLICATION AND WAS PLASTIC COATED WITH A LABEL PART NUMBER F.D.A. (FLEX DRIVE AUSTRALIA). UNAPPROVED PART.SDR VTZA990212Prop Governor · out of adjustIAD/GSO - FLT 7161 - DURING TAKEOFF AT 0645 HOURS, CREW ABORTED TAKEOFF DUE TO NR 1 ENGINE RPM ROLLED BACK SLOWLY TO 99 PERCENT. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND ADJUSTED PROP GOVERNOR. OPS CHECK OK. AIRCRAFT WASDR HNAA9900093Pcu · malfunctionedNR 2 ENG EXCEEDED 135 PERCENT TQ FOR LESS THEN 10 SEC. REMOVED AND REPLACED PROP, PCU, HMU, TSCU AND TQ PROB. INSPECTED OIL FILTERS AND BORESCOPED ENGINE.SDR UF6A990701Pcu · failedSBN - FLT 5753 - DURING TAKEOFF ROLL, THE RIGHT PROP CWP ILLUMINATED WITH ASSOCIATED CYCLING OF THE RED LOW PITCH LIGHT. RIGHT TORQUE REACHED 128 PERCENT. MAINTENANCE REMOVED AND REPLACED THE NR 2 PCU. PERFORMED 2 HIGH SPEED TAXIES WITH NO CWP OR LOW PITCH SDR SWIA971532Pcu · failedRIGHT ENGINE AUTO FEATHERED ON CLIMB-OUT. RETURNED TO SFO. REMOVED AND REPLACED PCU IAW MM 61-21-00. ALSO, CHANGED TORQUE SIGNAL CONDITIONER. CHANGED RIGHT ENGINE DUE TO OVER-TORQUE.SDR UF6A990623Seals · failedGRB - THE NR 2 PROP CWP ILLUMINATED WHEN POWER WAS ADVANCED ON TAKEOFF AND LEFT ENGINE WENT INTO UNCOMMANDED REVERSE DURING ABORTED TAKEOFF. MAINTENANCE REMOVED PROP TRANSFER TUBE SEALS. PERFORMED CHECK OF PROP SYNC SYSTEM AND RAN BOTH ENGINES TO 85 PERCENT SDR 99ZZZX2637Plug · failedTHIS ENGINE EXPERIENCED A PROPELLER OVERSPEED REQUIRING REDUCTION TO 18 INCHES OF MP TO RETURN TO MAXIMUM RPM. INSTALLING AN OVERHAULED GOVERNOR DID NOT CORRECT THE PROBLEM. PRESSURIZING THE OIL PASSAGE TO THE PROPELLER IAW LYC SI 1462 GAVE AN ACCEPTABLE DIFSDR QXEA9901422Relay · malfunctionSEA- NO AUTOFEATHER SELECT OR ARM AFTER TAKEOFF. MAINTENANCE RERACKED THE ADVISORY LIGHT CONTROL BOX. REPLACED THE ARM CONTROL RELAY 6121-K5, OPERATIONAL CHECKS GOOD.SDR QXEA9901368Relay · malfunctionSEA - DURING CLIMB WHEN AUTOFEATHER TURNED OFF, AUTOFEATHER ARM LIGHT BLINKED AND FLICKERED FOR 30 SECONDS. MAINTENANCE REPLACED 6121-K5 RELAY. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.SDR LR7A9950Valve · defectiveDURING CLIMBOUT FROM BET, NR 4 ENGINE SHUTDOWN AT 1455Z DUE RPM UNCONTROLLABLE. AIRCRAFT CONTINUED TO ANC AND LANDED WITHOUT FURTHER INCIDENT. REPLACED DEFECTIVE NR 4 PROPELLER VALVE HOUSING IAW HN61135. RUN-UP OK IAW HN 7101.SDR RAIA990619Transducer · failedSTL - FLT 7516 - IEC FAULT ON BOTH ENGINES. MAINTENANCE REPLACED NTS TRANSUDCER ON LEFT ENGINE. (X)SDR PLGA990609Switch · inopBOS - FLT 3143 - AIRCRAFT WAS DOING A FERRY FLIGHT, ABORTED TAKEOFF ROLL WHEN THE AUTOCOARSEN LIGHT ILLUMINATED. MAINTENANCE MEL'D THE AUTOCOARSEN SYSTEM AND THE AIRCRAFT CONTINUED TO ALBANY. AT ALBANY, MAINTENANCE REPLACED BOTH P3 SWITCHES, PERFORMED THE RESDR PLGA990606Autocoarsen · malfunctionedBTV - FLT 6406 - AIRCRAFT HAD A POSSIBLE MOMENTARY AUTO COARSEN EVENT ON THE LEFT ENGINE ON SHORT FINAL TO BTV. CREW REPORTED THAT IT OCCURRED SO FAST THAT THEY WERE UNSURE OF WHAT IT WAS. THE CREW SAID THEY DID NOT THINK IT WAS A POWER INTERRUPTION, BUT IT SDR VTZA990158Propeller Gov · out of adjustIAD/ABE - FLT 7158 - DURING TAKEOFF, AIRCRAFT ABORTED TAKEOFF AND RETURNED TO GATE DUE TO LT ENGINE ONLY MAKING 4 PERCENT TORQUE. MAINTENANCE ADJUSTED MAXIMUM FUEL FLOW AND PROPELLER GOVERNOR. OPS CHECK GOOD. AIRCRAFT RELEASED AND RETURNED TO SERVICE.SDR CA990715009Control Cable · binding(CAN) PILOT REPORTED UNABLE TO MOVE CONTROL BACK TO FINE PITCH AFTER GROUND TESTING. UPON INVESTIGATION, THE INNER CABLE WAS FOUND TO HAVE BOUND IN THE OUTER JACKET. STRANDS OF THE INNER CABLE BENT NEAR THE COCKPIT END OF THE CONTROL.SDR VTZA990100Nts · out of adjustFLT 7197 - IAD-ROA - ABORTED TAKEOFF DUE TO LEFT ENGINE TORQUE ROLLED BACK ON TAKEOFF ROLL. AIRCRAFT RETURNED TO THE GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND ADJUSTED NTS AND PERFORMED MAF ON LEFT ENGINE. OPS CHECK OK. AIRCRAFT WAS RELEASEDSDR VTZA990138Monopole · failedIAD/CHO - FLT 7325 - DURING TAKEOFF AT 1628 HOURS ON 5-23-99, AIRCRAFT ABORTED TAKEOFF DUE TO SRI WARNING LIGHT ILLUMINATED. AIRCRAFT RETURNED TO THE GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI 44098. MEL 76-1 ON SRI ON LT ENGINE. MSDR RAIA990527Spring · failedFLT 7733 - JFK - RIGHT OIL CONTAM LIGHT CAME ON. MAINTENANCE REPLACED RIGHT ENGINE PROP SHAFT WAVE SPRING. (M)SDR 99ZZZX2125Stop · looseWHEN COVER WAS REMOVED FROM QUADRANT, ALL WASHER TYPE STOPS WERE FOUND LOOSE AND NUTS COMING OFF. NO STOP NUT.SDR 99ZZZX2099Control Cable · failedDURING MAINTENANCE FOUND CABLE FAILED BETWEEN QUADRANT AND FIRST PHENOLIC CLAMP.SDR ASOA99039Pcu · failedON CLIMB-OUT BETWEEN 3000 AND 4000 FEET, THE RIGHT PROP FLUCTUATED FROM 98.2 PERCENT TO 101.5 PERCENT. FOLLOWED QRH PROCEDURES PROP SYNC OFF. PROP STABILIZED AT 101.2 PERCENT AFTER 30 SECONDS. CONTINUED WITH QRH PROCEDURES. FLIGHT IDLE SAME RPM. DECLARED ASDR ASOA99037Pcu · leakingATL-ILM - CLIMBING OUT OF 22,000 FT RECEIVED AND ORAL 'OIL' WARNING. LEFT ENGIN EOIL PRESURE INDICATION DECREASING. COMPLETED CHECKLIST. NH WAS DECREASED TO BELOW 75 PERCENT AND PROP FEATHERED. DECLARED AN EMERGENCY AND PERFORMED A PRECAUTIONARY SHUTDOWN OSDR RAIA990419Monopole · failedFLT 7650 - JFK - LEFT ENGINE OIL CONTAM LIGHT ILLUMINATED, THEN THE LEFT RPM AND TORQUE STARTED FLUCTUATING. MAINTENANCE REPLACED LEFT ENGINE RPM MONOPOLE. INSPECTED LEFT CHIP DETECTOR AND PERFORMED SOAP SAMPLE. (M)SDR AD6A99001Valve Housing · defectiveNR 4 PROPELLER FLUCTUATED 1 TO 1.5 PERCENT, WENT TO MECK AND RPM DROPPED TO 97 PERCENT WITH MOVEMENT OF THROTTLE. SHUT ENGINE DOWN PRECAUTIONARY. MAINTENANCE FOUND A FAULTY PROPELLER VALVE HOUSING PN 582855 AND REPLACED SAME. (X)SDR RU3A9903Screw · shearedAT PROPELLER CHANGE RUN-UP, SAFETY SCREW WHICH HOLDS DOWN LINK PIN TO LINK ARM SHEARED OFF CAUSING THE BLADE TO MOVE INTO FEATHER. (X)SDR PLGA990328AScrew · looseBOS - FLT 6398 - UPON LANDING, CREW WAS UNABLE TO GET REVERSE PITCH ON THE LEFT PROP. CREW WAS ABLE TO MAINTAIN CONTROL OF THE AIRCRAFT AND TAXIED TO THE GATE WITHOUT INCIDENT. BOS MAINTENANCE FOUND A SET SCREW THAT HAD BACKED OUT OF THE CONTROL QUADRANT BY SDR COMA9910048Conditioner · malfunctionedAUTOFEATHER WARNING DURING TAKEOFF. REPLACED THE LEFT ENGINE SIGNAL CONDITIONER.SDR COMA9910044Pcu · malfunctionedRIGHT HAND PROPELLER OVER SPEED TO 103 DEGREES. REPLACED THE PROPELLER CONTROL UNIT.SDR PCAA9900002Pcu · malfunctionedAFTER TAKEOFF FROM MDT, THE CREW EXPERIENCED A NR 2 ENGINE TORQUE FLUCTUATION ASSOCIATED WITH A PROPELLER RPM FLUCTUATION, OIL PRESSURE REMAINED NORMAL. THE AIRCRAFT RETURNED TO THE FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND FOUND THE NR 2 SDR VTZA9907381Monopole · failedFLT 7522 - IAD-EWR - DURING CLIMB, RETURNED FROM FLIGHT DUE TO RIGHT PROP RPM IND FLUX. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED SPEED MONOPOLE, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RSDR CA990318013Pcu · inoperative(CAN) ON APPROACH, THE CREW NOTICED A PROGRESSIVE DROP IN NR 2 PROPELLER'S RPM. ATTEMPTS TO CONTROL PROP RPM BY SWITCHING EEC TO MANUAL WERE UNSUCCESSFUL. THE CREW ELECTED TO SHUT DOWN THE ENGINE, AND THE AIRCRAFT WAS DIVERTED. POST-FLIGHT INSPECTION FOUND TSDR VNAA9903003Pcu · failedTHE RIGHT HAND PROPELLER WOULD NOT COME OUT OF FEATHER WHEN SELECTED DURING TAXI. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE RIGHT HAND PROPELLER CONTROL UNIT, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 61-21-06. OPERATIONASDR VNAA9902023Sensor · malfunctionedTHE LEFT HAND PROPELLER FAILED TO COME OUT OF FEATHER WHEN SELECTED, DURING TAXI. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE LEFT HAND PROPELLER SPEED SENSOR, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 77-12-11. OPERATIONALSDR RAIA990232Switch · failedFLT 7515 - GRR - RIGHT ENGINE APR FIRED WITH TORQUE AT 65 PERCENT. MAINTENANCE REPLACED LEFT ENGINE NTS SWITCH. (M)SDR VNAA9902020Pcu · failedTHE LEFT HAND PROPELLER FAILED TO COME OUT OF FEATHER WHEN SELECTED. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE LEFT HAND PROPELLER CONTROL UNIT, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 61-21-06. OPERATIONAL CHECKS WERE CSDR PLGA990226AComputer · inoperativeSYR - FLT 6272 - DURING TAKEOFF ROLL FOR FLIGHT 6272, THE AUTOCOARSEN HIGH LIGHT DID NOT COME ON AND THE TAKEOFF WAS ABORTED. MAINTENANCE REPLACED THE AUTOCOARSEN COMPUTER, PERFORMED REQUIRED OPERATIONAL CHECKS, AND RETURNED THE AIRCRAFT TO SERVICE. (M)SDR CA990310097Pcu · misinstalled(CAN) TAKEOFF WAS REJECTED DUE TO NR 1 ENGINE ONLY PRODUCING 89 PERCENT TORQUE AT THE FIREWALL. THE AIRCRAFT RETURNED TO GATE WHERE MAINTENANCE INSPECTION REVEALED A BOLT INSTALLED BACKWARDS ON THE PROPELLER CONTROL UNIT, WHICH HAD BEEN REPLACED THE NIGHT BEFSDR 99ZZZX1080Prop Governor · failedGOVERNOR WAS REMOVED DUE TO FAILURE TO CONTROL THE PROPELLER. WHEN IT WAS RECEIVED FOR OVERHAUL, DISASSEMBLED FOR INSPECTION, AND FOUND THE FLYWEIGHT ASSY COMPLETELY DESTROYED DUE TO CATASTROPHIC FAILURE. THERE WERE SHAVINGS OF METAL IN THE PUMP BODY. OWNERSDR PNSA990204Governor · out of adjustAT ROTATION LT ENGINE RPM DROPPED 5 PERCENT. FLIGHT CREW REPORTED THAT POWER LEVER WAS NOT RESPONDING NORMALLY AND SPEED COULD NOT BE RETURNED TO 100 PERCENT. FLIGHT CREW ELECTED TO BURN FUEL LOAD DOWN TO LANDING WEIGHT AND THEN MADE AN UNEVENTFUL LANDING. SDR VNAA9902010Connector · dirtyTHE LEFT HAND PROPELLER OVERSPEED TEST FAILED TO OPERATE WHEN SELECTED ON THE TAXI PRIOR TO TAKEOFF. MAINTENANCE INSPECTED AND CLEANED THE LEFT HAND PROPELLER OVERSPEED GOVERNOR CANNON PLUG. OPERATIONAL CHECKS WERE COMPLETED, IN ACCORDANCE WITH DORNIER MAINTSDR CA990310031Switch · contaminated(CAN) TAKEOFF WARNING DUE TO NR 2 CONDITION LEVER SWITCH 3151-S4. CLEANED AND ADJUSTED.SDR VNAA9902006Connector · dirtyTHE RIGHT HAND PROPELLER OVERSPEED TEST FAILED TO FUNCTION WHEN SELECTED. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND CLEANED THE OVERSPEED GOVERNOR CANNON PLUG. OPERATIONAL CHECKS WERE COMPLETED, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUSDR VNAA9902005Pcu · failedAFTER PUSHBACK, THE LEFT HAND PROPELLER FAILED TO UNFEATHER WHEN SELECTED. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE LEFT HAND PROPELLER CONTROL UNIT, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 61-21-06. OPERATIONAL CHECKSSDR CA990224009Control Cable · broken(CAN) RIGHT HAND PROPELLER CONTROL CABLE FOUND BROKEN APPROXIMATELY 14 INCHES FROM THE ROD END UNDER THE PEDESTAL.SDR PLGA990205Switch · failedLGA - FLT 6545 - ON TO TAKEOFF ROLL, THE AUTOCOARSEN DID NOT ARM AND TO WAS ABORTED. THE SYSTEM WAS MEL'D AND AIRCRAFT REPOSITIONED TO ABL FOR REPAIRS. MAINTENACNE REPLACED THE CONTROL QUADRANT. A/C RETURNED TO SERVICE. (M)SDR VNAA9901023Connector · dirtyTHE AIRCRAFT RETURNED TO THE GATE FOLLOWING A LEFT HAND PROPELLER OVERSPEED TEST FAILURE. MAINTENANCE INSPECTED AND CLEANED THE CANNON PLUG ON THE LEFT HAND PROPELLER OVERSPEED GOVERNOR, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 61-21-01. OPERATIONAL CHESDR RAIA990134Switch · failedJFK - FLT 7654 - APR SYSTEM FIRED EARLY. MAINTENANCE REPLACED LEFT ENGINE NTS SWITCH. (X)
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