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 96ZZZX4425Impulse Coupler · crackedWHILE C/W AD 78-09-07R3, AN IMPULSE COUPLER WAS FOUND TO NEED REPLACEMENT. A NEW PART WAS INSTALLED ON MAG. WHILE TIGHTENING NUT ON COUPLER TO 240 INCH/POUNDS, THE COUPLER CRACKED WHERE IT SLIDES ON THE TAPERED SHAFT. SUBMITTER FOUND THAT IMPULSE COUPLERS TSDR 96ZZZX4081Geartooth · failedDURING C/W AD 96-12-07, DISCOVERED DISTRIBUTOR GEAR MISSING A TOOTH, DID NOT AFFECT ENGINE OPS. REPLACED BOTH DISTRIBUTOR GEARS WITH NEW. REASON FOR FAILURE UNKNOWN, NO OTHER DEFECTS NOTED.SDR 96ZZZX4156Contact Points · spring defectAIRCRAFT LANDED AFTER CROSS-COUNTRY. WHEN THE PILOT ATTEMPTED TO DEPART, ENGINE WOULD NOT START. TROUBLESHOOTING DETERMINED THE POINTS IN THE LEFT MAGNETO WOULD NOT CLOSE COMPLETELY. GAP WAS WITHIN TOLERANCE. RETURN SPRING APPEARED TO BE BOWED, NOT SUPPLYISDR AU961021Seal · loose(AUS) MAGNETO OIL SEAL LOOSE IN HOUSING ALLOWING MAGNETO TO FILL WITH OILSDR 96ZZZX4398Impulse Cam · wornINSPECTED MAGNETO RIVETED CAM ASSY AND FOUND WORN BEYOND 'X' PLUS .014 INCH. SUBMITTER STATES THESE EARLY RIVETED UNITS SHOULD BE CHANGED OUT TO THE SNAP RING STYLE AT 500 HOURS. NEW STYLE FOR THIS APPLICATION IS 10-400167-9.SDR 96ZZZX3911Oil Seal · failedDURING TRAINING FLIGHT, ENGINE ROUGHNESS 'FELT' IN-FLIGHT; FOUND MAGNETO POINTS SATURATED WITH OIL. REPLACED MAGNETO WITH REBUILT UNIT.SDR AU961020Points · worn(AUS) MAGNETO POINTS WORNSDR AU961019Gear · stripped(AUS) MAGNETO DISTRIBUTOR GEAR TEETH STRIPPEDSDR AU960940Rotor · broken(AUS) MAGNETO ROTOR SHAFT FAILED AT THE CONTACT BREAKER END AT BASE OF CUTOUT FOR FIBRE CAM CAUSING TOTAL FAILURE OF MAGNETO - UNIT HAD OPERATED FOR 312 HRS SINCE INSPECTION IAW AD/ELEC/48SDR CA960723009Distributor Gear · loose electrode(CAN) THE MAGNETO WAS SENT IN FOR WARRANTY REPAIR. A TEST FOUND THAT THE UNIT WAS FIRING ON ONE CYLINDER. INSPECTION FOUND THAT THE ELECTRODE HAD BROKEN FREE OF ITS MOUNTING. THE UNIT WAS GIVEN A 500 HOUR SERVICE AND THE DEFECTIVE PART REPLACED AND THE UNIT RESDR 96ZZZX4785Spring · brokenCHECKED IGNITION TIMING. FOUND APROXIMATELY 90 DEGREES OFF. REMOVED MAGNETO, FOUND IMPULSE COUPLING SPRING BROKEN. CHECKED I-C PER AD 78-09-07R3/AD 96-12-0-7 AND FOUND SATISFACTORY. REVIEWED MAG O/H DATE FAXED BY INS. ADJ. FOUND I-C SPRING, INSP AND REUSSDR AU960970Points · out of adjust(AUS) MAGNETO POINTS GAP TOO SMALLSDR 96ZZZX4076Gear · failedMAGNETO DISTRIBUTOR GEAR FAILED.SDR 96ZZZX3528Coil · failedENGINE SUDDENLY BECAME ROUGH. MAG CHECK INDICATED TROUBLE WITH RIGHT MAG, FLIGHT CONTINUED ON SINGLE MAG. OPERATION - AT TERMINATION OF FLIGHT, MAGS RE-CHECKED. RT MAG DEAD; OPENING UP MAG REVEALED 'BEARING' GREASE IN MAG HOUSINGS. COIL APPEARED INTACT, BUSDR 96ZZZX3527Bearing · roughENGINE SUDDENLY BECAME ROUGH. MAG CHECK INDICATED TROUBLE WITH RIGHT MAG, FLIGHT CONTINUED ON SINGLE MAG. OPERATION - AT TERMINATION OF FLIGHT, MAGS RE-CHECKED. RT MAG DEAD; OPENING UP MAG REVEALED 'BEARING' GREASE IN MAG HOUSINGS. COIL APPEARED INTACT, BUSDR CA960703034Magneto · internal wear(CAN) ENGINE WAS RUNNING ROUGH WITH A LARGE MAG DROP. MAGNETO REPLACED.SDR 96ZZZX3794Bearing Cap · looseTHE FOLLOWING PROBLEM WAS NOTED DURING OVERHAUL OF SUBJECT MAGNETO. THE BEARING CAP ASSEMBLY WAS LOOSE IN THE HOUSING.SDR 96ZZZX3793Rotor Gear · looseTHE FOLLOWING WAS NOTED DURING OVERHAUL OF SUBJECT MAGNETO. THE ROTOR SHAFT GEAR CAME LOOSE AND TRAVELLED ON THE SHAFT UNTIL CONTACT WAS MADE ON THE BLOCK.SDR 96ZZZX3792Impulse Coupling · failedTHE FOLLOWING WAS NOTED DURING OVERHAUL OF SUBJECT MAGNETO. THE IMPULSE COUPLING ASSEMBLY HAD EVIDENCE OF FAILURE. THE PAWLS ROLLED OVER AND THE CAM ASSEMBLY CAME APART.SDR 96ZZZX3700Rotor · shaft failedENGINE NO START. TROUBLESHOOTING ISOLATED TO MAGNETO. OPENED MAGNETO HOUSING TO INSPECT. REMOVED DISTRIBUTOR BLOCK AND GEAR ASSEMBLY. NOTICED ROTOR GEAR APPEARED DETACHED. REMOVED GEAR AND FOUND SHAFT HAD BROKEN AT AREA BELOW POINT CAM SLOT. SLOTTED PORTSDR AU960969Spring · broken(AUS) LH MAGNETO IMPULSE COUPLING SPRING BROKENSDR 96ZZZX3689Coil · failedLEFT AND RIGHT MAGNETOS FAILED BECAUSE OF DEFECTIVE COILS WHEN HEATED FOR APPROXIMATELY 30 MINUTES. AIRCRAFT ON FERRY FLIGHT TO PERFORM ANNUAL INSPECTION. AD 94-01-03R2 REQUIRED AT ANNUAL OR 100 HOURS. AIRCRAFT HAS BEEN OUT OF ANNUAL FOR 4 YEARS. SUGGEST ASDR 96ZZZX3688Coil · failedLEFT AND RIGHT MAGNETOS FAILED BECAUSE OF DEFECTIVE COILS WHEN HEATED FOR APPROXIMATELY 30 MINUTES. AIRCRAFT ON FERRY FLIGHT TO PERFORM ANNUAL INSPECTION. AD 94-01-03R2 REQUIRED AT ANNUAL OR 100 HOURS. AIRCRAFT HAS BEEN OUT OF ANNUAL FOR 4 YEARS. SUGGEST ASDR AU960899Cover · corroded(AUS) MAGNETO CORRODED BETWEEN MAGNETO COVER PNO 10-349393-2 AND CAPACITOR PNO 10-349276SDR CA980915004Magneto · failed(CAN) DURING FLIGHT, THERE WAS AN EXCESSIVE DROP ON RIGHT HAND MAGNETO. AIRCRAFT LANDED. DURING GROUND RUN BY MAINTENANCE THE RT MAG FAILED. RT MAG SIMULTANEOUSLY FIRING ON ALL 4 PLUGS. RT MAG REPLACED WITH NEW UNIT.SDR AU960975Capacitor · corroded(AUS) RH MAGNETO CAPACITOR CORRODED IN AREA OF CONTACT WITH CASESDR CA960625201Flyweights · destroyed(CAN) FLYWEIGHTS JAMMED ON STOP PIN, WHICH SHEARED PIN. PIN AND FLYWEIGHTS WERE FOUND IN THE ENGINE OIL SUMP. THE ENGINE GEAR TRAIN WAS DAMAGED. THE FAILURE WAS DUE TO EXCESSIVE WEAR ON FLYWEIGHTS AND FLYWEIGHT AXLE.SDR 96ZZZX4954Distributor Blk · defectiveDISASSEMBLED RT MAGNETO. FOUND EXCESSIVE CARBON RESIDUE IN COIL AREA. FURTHER INVESTIGATION REVEALED THE ROTOR ARM ON GEAR ASSY HAD BECOME LOOSE ALLOWING APPROXIMATELY 30 DEGREE MOVEMENT SIDE TO SIDE. SUBMITTER RECOMMENDS 500-HOUR INSPECTION OF BLOCK AND GESDR 96ZZZX3373Condenser · defectiveMAGNETOS OVERHAULED WITH NEW ELECTROSYSTEM CONDENSER, PN E510-349276, CODE NR 03108 AND NR 9544. MAGNETOS CHECKED ON TEST STAND, OPERATED NORMALLY. MAGS INSTALLED AND TIMED TO ENGINE. DURING GROUND RUN, 3 MAGS CHECKED NORMAL. FOURTH MAG DEVELOPED A 1,000 RSDR 96ZZZX3340P-Lead · deterioratedENGINE INTERMITTENT, ROUGHNESS, WAS BELIEVED CAUSED BY LEFT MAGNETO P-LEAD SHORTING OUT AGAINST OUTSIDE SHIELDING. BOTH LT AND RT P-LEADS INTERNAL INSULATION HAD DETERIORATED TO POWDER. THIS CONTRIBUTED TO ACCIDENT. P-LEADS APPEARED TO BE ORIGINAL EQUIPMENTSDR 96ZZZX3094Distributor Gear · teeth shearedCOMPLETE FAILURE OF THE MAGNETO DUE TO SHEARING OF ALL TEETH OF THE DISTRIBUTER GEAR.SDR CA960620028Shaft · broken(CAN) ON ENGINE RUNUP, DURING MAGNETO CHECK, ENGINE VIBRATION ON THE RIGHT MAGNETO. MAGNETO DRIVESHAFT BROKEN.SDR AU960895Shaft · fractured(AUS) LH MAGNETO BREAKER POINT DRIVE SHAFT FRACTURED IN AREA OF CAM SLOTSDR AU960779Rotor · failed(AUS) MAGNETO ROTOR FAILED AT THE BASE OF THE CAM RECESSSDR 96ZZZX4009Coil · failedMAGNETO SENT TO ACCESSORY SHOP TO T/S BECAUSE OF POOR RUNNING. FOUND SECONDARY WINDING OPEN IN COIL. SUBMITTER STATED ONCE AGAIN, SLICK COILS SEEM TO BE WEAKEST PART OF MAGNETO.SDR 96ZZZX3198Gear Assy · teeth missingMAGNETO CHECK PRIOR TO TAKEOFF. ENGINE WOULD NOT RUN ON RT MAGNETO. INSPECTION OF MAGNETO FOUND 4 TEETH MISSING, RT SIDE DISTRIBUTOR GEAR ASSY. ALL TEETH ON RT AND LT GEAR ASSYS BADLY WORN AND CHIPPED. SUSPECT CAUSE, AGE, HEAT, AND LACK OF LUB ON DRIVE GEASDR 96ZZZX3075Condenser · wire brokenRT MAG INOPERATIVE. INSTALLED NEW MAG, SN 1069532DR. THIS NEW MAG WAS INOPERATIVE. TROUBLESHOOTING BOTH MAGS REVEALED ORIGINAL MAG HAD BAD CONSENSER AND THE NEW MAGNETO HAD A BAD COIL. BOTH NEW MAGNETOS HAD A BAD COIL. BOTH THE CONDENSER AND COIL PROBLEMSSDR 96ZZZX3074Condenser · failedINVESTIGATION FOR MAG PROBLEM FOUND CONDENSER HAD NO CONTINUITY.SDR 96ZZZX3072Coil · wire brokenINSTALLED NEW MAGNETO, WAS INOPERATIVE. TROUBLESHOOTING REVEALED THE COIL WIRE WAS BROKEN AT THE TERMINAL END. (INSULATION WAS STILL INTACT). SUBMITTER STATED CAUSE WAS DUE TO THE TERMINAL END BEING CRIMPED TOO HARD RESULTING IN BROKEN WIRE. RECOMMEND MANUSDR 96ZZZX3073Magneto · failedMAGNETO FAILED. DID NOT TROUBLESHOOT MAG DUE TO IT BEING UNDER WARRANTY.SDR AU960721Coil · cracked(AUS) RH MAGNETO COIL CRACKEDSDR CA960611012Magneto · failed(CAN)ON PRE TAKEOFF RUN-UP, RIGHT MAGNETO CUT OUT COMPLETELY AT 1500 RPM IGNITION SWITCH AND WIRING CHECKED AND SERVICEABLE CAPACITORS INSTALLED, SAME RESULT DUAL MAGNETO REPLACEDSDR CA960620201Rotating Shaft · sheared(CAN) PILOT NOTICED A 250 RPM DROP ON THE RIGHT MAGNETO DURING RUN-UP, AS WELL AS SIGNIFICANT ROUGH RUNNING WHEN ONLY THE RIGHT MAGNETO WAS SELECTED. AFTER SHUTDOWN THE RIGHT MAGNETO WAS REMOVED AND DISASSEMBLED. INSPECTION OF THE MAGNETO REVEALED A SHEARED MASDR CA960604002Bearing Cap Assy · failed(CAN)ENGINE ROUGH ON RUN UP. MAGNETO SEPARATED FROM ENGINE AND HANGING FROM HARNESS. MAGNETO SEIZED AND MOUNTING FLANGE FRACTURED. ROTOR SHAFT SEIZED DUE TO BEARING FAILURE ENSUING FROM OUTER RACE OF BEARING SPINNING WITHIN THE BEARING CAP ASSEMBLY. BEARING CSDR CA960527005Distributor Bloc · worn bushing(CAN)DISTRIBUTOR BUSHING WORN AT A VERY RAPID RATE UNTIL DISTRIBUTOR GEAR ARM BEGAN INTERFERING AGAINST DISTRIBUTOR BLOCK CONTACTS.SDR 96ZZZX2977Spring · brokenTWO NEW SNAP-RING COUPLINGS INSTALLED AT ANNUAL INSPECTION. SEVEN HOURS LATER BOTH COUPLING SPRINGS FAILED ON CONSECUTIVE ENGINE STARTS. SPRING FAILURES APPEAR TO BE IDENTICAL. COUPLINGS WERE BOUGHT AND INSTALLED AS ASSEMBLIES PREVENTING INSPECTION OF SPRINSDR AU960656Condenser · faulty(AUS) MAGNETO CONDENSER SEPARATED FROM MOUNTING LUG - PIGTAIL BROKEN - POINTS BURNTSDR 96ZZZX2762Impulse Coupler · cam splitMAGNETO IMPULSE COUPLER CAM SPLIT IN HALF DURING RE-INSTALLATION ON MAGNETO DURING MAGNETO 500-HOUR INSPECTION AND IMPULSE COUPLER AD 78-09-07R3.SDR 96ZZZX2889Coil · failedAFTER FLIGHT, ENGINE WOULD NOT START. BOTH MAGNETOS FOUND TO BE INOPERATIVE, NO SPARK. IT HAS BEEN FOUND THAT ONE MAG GOES INOP. ENGINE STARTS ON THE GOOD ONE, UNTIL IT FAILS. AFTER THE ENGINE RPM MEETS OR EXCEEDS 600 RPM, THESE COILS WILL MAG CHECK OK. ISDR 96ZZZX2888Coil · failedAFTER FLIGHT, ENGINE WOULD NOT START. BOTH MAGNETOS FOUND TO BE INOPERATIVE, NO SPARK. IT HAS BEEN FOUND THAT ONE MAG GOES INOP. ENGINE STARTS ON THE GOOD ONE, UNTIL IT FAILS. AFTER THE ENGINE RPM MEETS OR EXCEEDS 600 RPM, THESE COILS WILL MAG CHECK OK. I
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