JASC 7414
Service difficulty reports · 2,449
Reports filed under 7414 · Magneto/Distributor, 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 = '7414' 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 = '7414' 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 98ZZZX3282Stator · shortedENGINE FAILURE DUE TO LOSS OF BOTH MAGNETOS. TWO WIRES FROM THE STATOR PROVIDING POWER FOR THE LEFT AND RIGHT INGITION SYSTEMS SHORTED TOGETHER. INSULATION WAS SOFT AND FAILED.SDR 98ZZZX3276Housing · crackedFOUND THE MAGNETO HOUSING CRACKED IN TWO PLACES OPPOSITE EACH OTHER ON THE POLE SHOE HOUSING. THE CRACK GOES ALL THE WAY THROUGH THE HOUSING. SEE PAGES 7-8, FIGURE 716 OF THE MM FOR AN EXAMPLE.SDR 98ZZZX3268Capacitor · failedFOR THE FOURTH TIME IN TWELVE MONTHS, A TCM P/N 10-382681 CAPACITOR FAILED CAUSING THE D3000 MAG TO BE DEAD.SDR 98ZZZX3033Impulse Shaft · wornREMOVED MAGNETO FOR 200 HOUR CHECK. FOUND IMPULSE ASSY LOOSE ON SHAFT. NUT HAD WORN THREADS ON SHAFT EVEN THOUGH COTTER PIN WAS STILL IN PLACE. WOODRUFF KEYS HAD BEEN CUT NEARLY IN HALF. SUBMITTER STATED THIS IS THE SECOND MAGNETO/IMPULSE ASSY FOUND TO HAVSDR 98ZZZX3275Housing · crackedFOUND THE MAGNETO HOUSING CRACKED IN TWO PLACES OPPOSITE EACH OTHER ON THE POLE SHOE HOUSING. THE CRACKS GO ALL THE WAY THROUGH THE HOUSING.SDR 98ZZZX3031Impulse Coupling · wornREMOVED MAGNETO FOR INSPECTION. IN THE PROCESS OF INSPECTING COUPLING PAWL PINS (WHICH REQUIRES REMOVAL OF COUPLING FROM MAGNETO) OBSERVED THAT COUPLING SPRING IS SHOWING ABNORMAL WEAR JUST AFT OF THE CENTER OF SPRING ATTACH POINT. WEAR IS A RESULT OF CONTACSDR 98ZZZX3057Coil · failedNOTICED A RISE IN EGT ABOUT 15 MINUTES FROM (38D). RT ENGINE RUNNING SMOOTH. CHECKED RT MAGNETO AFTER LANDING AND FOUND RT SIDE DEAD. ON INSPECTION OF MAGNETO, FOUND A CRACK AND A BURNED AREA WHERE COIL WAS ARCING TO CASE OF MAG. SAME PROBLEM HAD OCCURRED SDR AU981018Slip Ring · improper part(AUS) MAGNETO DRIVE END BEARING FITTED TO THE HOUSING WITH NO INSULATION RESULTING IN POLING OF THE ARMATURE. METAL CONTAMINATION. IMPULSE COUPLING MAGNETIZED SLIP RING SUSPECT UNAPPROVED PART. PERSONNEL/MAINTENANCE ERROR.SDR GLBR98100Magneto · failedLEFT MAGNETO QUIT IN-FLIGHT. REMOVED AND REPLACED DISTRIBUTOR BLOCK AND GEAR ASSY IAW UNISON SPECS. INSTALLED ONE ENGINE IAW TEXTRON LYC SPECS. TIMED TO ENGINE. MAGS CHECK GOOD. (X)SDR 98ZZZX2986Impulse Coupling · looseREMOVED MAGNETO FOR 400-HOUR IMPULSE INSPECTION. FOUND BOTH PAWL PINS HAD BECOME LOOSE ON IMPULSE BODY WITH ONE PIN NEARLY READY TO COME OUT OF ITS MOUNT HOLE. THIS WAS A NEW MAGNETO ASSY INSTALLED ON ENGINE AS A UNIT.SDR 98ZZZX3423Gear · wornGEAR TEETH WORN IN MAGNETO.SDR 98ZZZX2709Impulse Coupling · failedAIRCRAFT ENGINE IS EQUIPPED WITH ELECTRONIC IGNITION ON RIGHT SIDE OF ENGINE WITH A START MODE, SO DID NOT REALIZE THE IMPULSE ON LEFT SIDE. SLICK MAG WAS GOING BAD UNTIL THE MAGNETO TOTALLY DID NOT WORK. IMPULSE COUPLING SPRING LOST TENSION UNTIL MAG FAILURSDR 99ZZZX587Magneto · failedMAGNETO FAILED IN-FLIGHT. TROUBLESHOOTING REVEALED DISTRIBUTOR GEAR NOT TURNING. PAPER SHIM NEXT TO COIL HAD MIGRATED TOWARD GEAR AND CAUSED CATASTROPHIC FAILURE OF GEAR TEETH. ENGINE AND MAGS 50 HOURS SINCE OVERHAUL.SDR 98ZZZX3181Gear · wornAT ANNUAL INSPECTION WHILE C/W SAIB NR CE 98-2141, FOUND BOTH MAGNETO DRIVE GEARS WORN. THE TEETH ARE GALLED IN PLACES. THE WORKMANSHIP OF THE GEARS AT MFG DOES NOT LOOK LIKE THAT OF THE TWO NEW TEM GEARS INSTALLED. IT (THE LEFT GEAR) ALSO JUST HAS THE P/N SDR 99ZZZX192Cam · wornENGINE WOULD NOT START. REMOVED MAG, FOUND CAM FOR POINTS WAS ROUNDED FLAT AND GEARS INSIDE WERE WORN BAD. TALKED TO TECH REP WITH UNISON AND WAS TOLD ON A PRESSURED MAG, 238 HRS WAS MORE THAN THE MFG EXPECTS TO GET OUT OF THE PART. THE NYLON REACTS TO THE SDR 98ZZZX2670Magneto · failedPILOT MADE PRECAUTIONARY LANDING WHEN LEFT ENGINE GOT ROUGH IN-FLIGHT. ENGINE WOULD NOT RE-START ON GROUND. FOUND LEFT MAGNETO SEVERELY CORRODED INTERNALLY. INVESTIGATION REVEALED RIGHT MAGNETO ON LEFT ENGINE AND BOTH MAGS ON RIGHT ENGINE IN SAME CONDITIONSDR 98ZZZX3168Magneto · failedRECEIVD BENDIX MAGNETO AS A FACTORY OVERHAULED UNIT FROM TELEDYNE CONTINENTAL. INSTALLED MAG, RAMP TEST GROUND RUN OK. AIRCRAFT FLEW FOR 45 MINUTES AND HAD COMPLETE ENGINE FAILURE DUE TO MAG FAILURE. FOUND BOTH BREAKER POINTS NOT GROUNDING TO MAG CASE. RECSDR 98ZZZX2629Contact Assy · defectivePILOTS REPORTED AIRCRAFT WOULD INTERMITTENTLY LOSE POWER. PROBLEM WAS TRACED TO MAGNETO POINTS INADEQUATELY GAPPED. STAPLE WHICH ATTACHES FELT TO NYLON CAM RIDER ON POINTS WAS FOUND TO BE INTERFERRING WITH PROPER OPERATION OF POINTS NOT ALLOWING THEM TO OPENSDR 98ZZZX2460Magneto · failedRECEIVED BENDIX MAG AS A FACTORY OVERHAULED UNIT FROM TELELDYNE CONTINENTAL. INSTALLED MAG, RAMP TEST GROUND RUN OK. AIRCRAFT FLEW FOR 45 MINUTES AND HAD COMPLETE ENGINE FAILURE DUE TO MAG FAILURE. FOUND BOTH BREAKER POINTS NOT GROUNDING TO MAG CASE. SUBMISDR 98ZZZX2603Gear · strippedPILOT REPORTED ROUGH RUNNING ENGINE. REMOVED FUEL CONTROL FLOW, CHECKED. FOUND BAD RIGHT MAGNETO. TEETH STRIPPED FROM DISTRIBUTER GEAR.SDR 98ZZZX2574Gear · failedPILOT REPORTED ROUGH RUNNING ENGINE. REMOVED FUEL CONTROL, FLOW CHECKED. FOUND BAD RIGHT MAGNETO. TEETH STRIPPED FROM DISTRIBUTOR GEAR.SDR 98ZZZX2288Impulse Coupling · wornAPPROXIMATE TIME ON COMPONENT 450 HOURS. NOTED ONE PAWL WORN MORE THAN THE OTHER, .130 INCH AS COMPARED TO .100 INCH. NOTE, .150 INCH MAXIMUM ALLOWED BY SLICK. ALSO, NOTED THAT ONE PAWL PIN SEEMED SOFTER THAN THE OTHER BY USING FILE AS DESCRIBED IN SLICK SBSDR 98ZZZX2671Point Set · failedUPON REPORT OF DEAD RIGHT MAGNETO, FOUND CONTACT POINT LOOSE IN POINT SET BODY. OTHERWISE, POINT SET IN EXCELLENT CONDITION.SDR AU980560Bearing · loose(AUS) MAGNETO BEARING SPINNING IN PLATE.SDR AU980542Coil · failed(AUS) MAGNETO COIL CASE SHORT CIRCUITING TO MAGNETO FRAME.SDR 98ZZZX3074Breaker Assy · failedRIGHT MAGNETO DEVELOPED A LOW EXCESSIVE DROP OF 150 RPM ON GROUND. CHECKS AT 1600 RPM. FOUND RT MAG BREAKER ASSY WITH BROKEN CAM FOLLOWER SPRINGLEAF NEXT TO FACTORY ASSY SCREW. SECOND OCCURRENCE SINCE 1995. SUSPECT ELTROSYSTEMS FAA PMA LEAF SPRINGS TOO BRISDR 98ZZZX2126Capacitor · defectiveMAGNETO POINTS AND COILS REPLACED ON 500-HOUR INSPECTION. AIRCRAFT MADE FORCED LANDING APPROXIMATELY 3 HOURS LATER. FOUND CAM FOLLOWERS MELTED ON ONE SET AND RESET OTHER SET AND FLEW ACFT BACK TO BASE (APPROX ONE-HALF HOUR). NEW POINTS SHOWED SIGNS OF HEAT SDR 98ZZZX2042Coupling · failedRT MAGNETO REMOVED TO CHANGE BREAKER POINTS. ON REMOVAL, NOTED THAT ONE MAGNETO DRIVE CUSHION WAS MISSING. A SMALL PIECE OF THE COUPLING WAS FOUND, IT WAS HARD/BRITTLE. THE DRIVE COUPLING WAS FOUND CRACKED. SUSPECT BECAUSE ONE-HALF OF THE CUSHION WAS MISSSDR 98ZZZX1979Coil · openDURING A ROUTINE 500-HOUR INSPECTION ON THE MAGNETOS, FOUND THE COIL SECONDARY RESISTANCE OUT OF LIMITS: THE CIRCUIT WAS OPEN.SDR AU980504Impulse Coupling · failed(AUS) MAGNETO IMPULSE COUPLING PAWL RETAINING RIVETS LOOSE AND CLOSE TO FAILURE.SDR CA001107013Magneto · failed(CAN) MAGNETO HAS EXCESSIVE MAG DROP.SDR AU980547Bearing · loose(AUS) MAGNETO BEARING SPINNING IN CAP.SDR 98ZZZX1739Coil · failedCOMPLAINT WAS 'MISFIRE' AT CRUISE POWER. SYMPTOM WAS NOSE YAW AT ERRATIC INTERVALS. NORMAL PREFLIGHT RUN-UP CHECK SHOWED NO PROBLEM. MAGNETO CHECK AT HOVER POWER CAUSED ENGINE FAILURE WHEN 'LEFT' MAGNETO POSITION WAS SELECTED. RECORDS INDICATE THIS COIL HASDR 98ZZZX1916Drive Coupler · failedALUMINUM MAGNETO DRIVE COUPLER FRACTURED CAUSING ENGINE STOPPAGE IN-FLIGHT. PART USED IN EXPERIMENTAL AIRCRAFT FOUND TO HAVE AN APPROX 200 HOUR USE. RECOMMEND REMOVING ALL IN SERVICE AND REPLACE WITH THOSE MADE FROM PHENOLIC OR MICARTA (NOT SURE WHICH MATERISDR 98ZZZX1697Drive Coupling · failedTHE CAST ALUMINUM MAGNETO DRIVE COUPLING WHICH IS KEYED TO THE FLYWHEEL BROKE INTO FOUR PIECES. THE RESULTANT FRICTION MELTED AND FUSED A PORTION OF THE BROKEN PIECES OF THE COUPLING TO THE STATIONARY CROSS MEMBER ENGINE MOUNT. THIS FAILURE OF THE MAGNETO COSDR CA980421003Gasket · leaking(CAN) OIL LEAK FROM RT MAGNETO. MAGNETO AND GASKET REMOVED AND THE PROBLEM WAS FOUND TO BE A PIECE OF THE TAIL END OF A COTTER PIN EMBEDDED IN THE MAGNETO GASKET.SDR AU980503Impulse Coupling · failed(AUS) MAGNETO IMPULSE COUPLING PAWL RIVETS LOOSE AND CLOSE TO FAILURE. MAGNETO DRIVE SUPPORT BEARING CAGE BREAKING UP. METAL FOUND IN OIL FILTER.SDR CA980513007Dist Block · cracked(CAN) AFTER MAGNETO FAILURE, THE FOLLOWING DEFECTS WERE FOUND. THE DISTRIBUTOR BLOCK WAS CRACKED AND THERE WERE TEETH MISSING FROM THE DISTRIBUTOR GEAR.SDR AU981391Magneto · loose(AUS) RIGHT MAGNETO ROTOR AND BEARINGS LOOSE IN THE HOUSING ALLOWING THE ROTOR TO CONTACT THE HOUSING. PART TC: 1,736.SDR CA980325023Distributor Blk · damaged(CAN) MAGNETO WAS NOT OPERATING AND WAS SENT FOR REPAIR. INTERNAL INSPECTION REVEALED POINTS WERE WORN BEYOND LIMITS & MAGNETO WAS FULL OF WATER & OIL DUE TO FAILURE OF BEARING SEAL. DEFECTIVE PARTS WERE REPLACED, MAGNETO REPLACED, UNIT RETURNED TO SERVICE. 6 SDR CA980318037Magneto · failed(CAN) THE AIRCRAFT WAS EXPERIENCING BRIEF DURATIONS OF ENGINE SPUTTER MOSTLY ON CLIMB OUT. TROUBLESHOOTING COULD NOT ISOLATE THE FAULT AND GROUND RUN COULD NOT DUPLICATE THE PROBLEM. THIS ENGINE IS EQUIPPEDWITH A LASAR IGNITION STC WHICH HAD A SIMILAR DEFECT PSDR CA980318036Magneto · failed(CAN) THE AIRCRAFT WAS EXPERIENCING BRIEF DURATIONS OF ENGINE SPUTTER MOSTLY ON CLIMB OUT. TROUBLESHOOTING COULD NOT ISOLATE THE FAULT AND GROUND RUN COULD NOT DUPLICATE THE PROBLEM. THIS ENGINE IS EQUIPPEDWITH A LASAR IGNITION STC WHICH HAD A SIMILAR DEFECT PSDR 98ZZZX1593Magneto · failedMAGNETO WAS INSTALLED AS A NEW UNIT WITH STC SE419CH ON THIS AIRCRAFT ON 4-28-97. THE STC IS THE UNISON ELECTRONIC IGNITION SYSTEM. DURING THE MAG CHECK WITH THE ENGINE RUNNING AND THE MAG SWITCH IN THE LEFT POSITION, THE ENGINE QUIT. OPERATION WAS NORMAL ISDR 98ZZZX1020Coil · failedMAG COIL AT 500 HOURS BURNED THROUGH ON THE OPPOSITE SIDE OF HIGH TENSION LEAD. HAVE TO PULL COIL OUT TO SEE DAMAGED SPOT. ENGINE LOST POWER, TOOK MORE MANIFOLD PRESSURE TO MAINTAIN SAME RPM.SDR BIER9802050Condensor · shortedPILOT REPORTED, EXCESS RPM DROP ON RUN-UP, INSP OF MAG INTERNALS REVEALED TOP OF CONDENSOR, WHERE WIRE IS SOLDERED TO CONDENSOR WAS CONTACTING MAG CAP. IT HAD FINALLY WORN THROUGH THE INSULATING PAINT AT THE TOP. SUBMITTER STATES, THE SOLDER JOINT AND WIRE WSDR 98ZZZX957Magneto · failedENGINE HAD 200 RPM DROP ON LEFT MAGNETO. CHECKED MAG TO ENGINE TIMING, AND COULD NOT GET MAG TIMED TO ENGINE. REMOVED MAG FOR INSPECTION. WHEN MAG WAS OPENED, FOUND MAGNET SHAFT SHEARED AT KEYWAY. THIS MAGNETO WAS A NEW/REBUILD FROM TELEDYNE CONTINENTAL INSDR AU980324Magneto · faulty(AUS) LT MAGNETO FAULTY.SDR 98ZZZX802Magneto · mistimedUPON INSTALLATION OF 2 FACTORY REMANUFACTURED ENGINES, DIFFICULTY WAS EXPERIENCED IN GETTING MANIFOLD PRESSURE RPM TO CORROLATE BETWEEN ENGINES. INDIVIDUALLY, BOTH ENGINES MET POWER SPECIFICATIONS. OPERATION BETWEEN THE ENGINES AT LOWER POWER SETTINGS WAS DSDR 98ZZZX712Cam Assy · wornMAGNETO WAS DISASSEMBLED FOR 500-HOUR INSPECTION. WEAR ON FLYWEIGHT AXLES WAS APPROXIMATELY .020 INCH AND STOP PINS HAD GROOVES ABOUT .020 INCH DEEP. IMPULSE COUPLING SPRING WAS BROKEN. AIRCRAFT WAS OPERATED 80 HOURS IN PAST 5 YEARS. NOT FLOWN AT ALL FOR PSDR AU980154Magneto · shorted(AUS) RH ENGINE LH MAGNETO PRIMARY LEAD SHORT CIRCUITED TO MAGNETO CASE.
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