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.

SDR 95ZZZX2696Contact Assy · wornMAGNETO WAS REMOVED FROM THE AIRCRAFT AFTER MAGNETO TIMING CHECK INDICATED MAGNETO INTERNAL TIMING WAS OFF BY 10 DEGREES. MAGNETO DISASSEMBLY INSPECTION REVEALED EXCESSIVE CAM FOLLOWER WEAR. CAM FOLLOWER ALSO APPEARED MELTED. CONTINUED OPERATION WOULD HAVE May 3, 1995 · N189ER · Mooney M20JSDR 95ZZZX3315Magneto · points groundedON THE THIRD FLIGHT OF THE DAY, THE LEFT ENGINE FAILED TO START. THE CAP WAS REMOVED FROM THE MAG AND MOISTURE WAS FOUND WHICH WAS GROUNDING THE VIBRATOR POINTS. MAG WAS DRYED OUT. OPS CHECK OK.Apr 28, 1995 · N65RW · Beech B80SDR 95ZZZX2377Capacitor · shortingINVESTIGATION FOR AN INTERMITTENT DEAD MAG FOUND SPRING STRAP TOUCHING HOUSING AS P-LEAD IS PUSHED INTO COVER.Apr 27, 1995SDR 95ZZZX2647Stop Pin · dislocatedPILOT REPORTED LOW OIL PRESSURE AFTER TAKEOFF. AFTER TROUBLESHOOTING ACTUAL PRESSURE, FOUND WHAT WAS LATER TO BE DETERMINED TO BE THE STOP PIN FROM THE LEFT MAGNETO IN THE SUCTION SCREEN CAUSING LOW FLOW TO OIL PUMP.Apr 26, 1995 · N4086H · Mooney M20KSDR 95ZZZX2719Distributor Gear · brokenON TWO OCCASIONS, THE LARGE DISRIBUTOR GEAR HAS SHED GEAR TEETH DURING NORMAL OPERATIONS. THE FIRST SET OF GEARS SHED 11 TEETH AND THE SECOND SET SHED 2 TEETH. THE FIRST SET HAD 500 HOURS SINCE OVERHAUL AND THE SECOND SET HAD 303.5 HOURS SINCE OVERHAUL. INDApr 11, 1995 · N4669G · Cessna 172SDR 95ZZZX1901Coil · crackedDURING A 100-HOUR INSPECTION, COILS FOUND CRACKED IN THE MAGS. SLICK MFG COMPANY HAS ADDRESSED THE PROBLEM WITH SERVICE LETTERS, BUT THERE ARE NO AD'S ADDRESSING THESE COILS WHICH ALLOWS OWNERS THE LEEWAY TO RESIST REPLACING THEM. SUBMITTER SUGGESTS THE BESTApr 5, 1995 · N6041J · Cessna A150LSDR 95ZZZX1900Coil · crackedTHE MAGNETO COIL CRACKED ITS OUTER CASING. THERE DID NOT SEEM TO BE ANY EVIDENCE OF ABUSE, BUT THE LEFT MAGNETO ON THE SAME ENGINE FAILED BY CRACKING ALSO, AND, IT ONLY HAD 180 HOURS TIME IN SERVICE, AN ADDITIONAL MALFUNCTION AND DEFECT REPORT WILL BE FILED FApr 5, 1995 · N29406 · Cessna 177SDR 95ZZZX1899Coil · crackedTHE MAGNETO COIL CRACKED CAUSING MAG TO FAIL. THIS REPORT IS IN CONJUNCTION WITH AN ADDITIONAL REPORT ON THE SAME AIRPLANE AT THE SAME TIME A DUAL MAG FAILURE OCCURRED ON LANDING ROLL OUT. INSPECTIONS ON THE NAGNETOS DO NOT REQUIRE REMOVAL OF COIL TO SATISFYApr 5, 1995 · N29406 · Cessna 177SDR 95ZZZX1898Coil · crackedDURING A 100-HOUR INSPECTION, THE IGNITION COILS WERE REMOVED FROM THE MAGS AND WERE FOUND CRACKED. THE TOTAL TIME WAS UNDETERMINABLE DUE TO LOST LOG BOOKS, BUT AT LEAST 600 HOURS ARE VERIFIABLE. THIS IS A LONG PERIOD OF SERVICE AND SLICK HAS ADDRESSED THIS Apr 5, 1995 · N6041J · Cessna A150LSDR 95ZZZX1888Impulse Coupler · spring brokeINSTALLED IMPULSE COUPLER (NEW) ACCORDING TO MANUFACTURER'S INSTRUCTIONS. AFTER LESS THAN ONE HOUR'S TIME IN SERVICE, THE INTERNAL SPRING BROKE IN TWO PIECES. AFTER CONTACTING SUPPLIER OF PART, DISCOVERED THAT THEY HAD HAD AN IDENTICAL PART RETURNED THAT DAYApr 5, 1995 · N7312F · Piper PA28140SDR 95ZZZX1740Magneto · failedAFTER TAKEOFF, RIGHT ENGINE STARTED TO BACKFIRE AND RUN ROUGH. ENGINE WAS SHUT DOWN AS A PRECAUTIONARY METHOD. UPON TROUBLESHOOTING, FOUND LT MAG BAD. MAG WAS REPLACED WITH A YELLOW TAGGED UNIT. ENGINE WAS GROUND RUN, CHECKED SATISFACTORY. AIRCRAFT WAS REMar 27, 1995 · N24230 · Doug DC3SDR 95ZZZX2430Rotor Gear · teeth brokenTHREE TEETH SHEARED OFF ON RIGHT MAG SIDE. TWO TEETH SHEARED OFF ON LEFT MAG SIDE. RIGHT MAG WAS NOT ROTATING. ENGINE RUNNING ON LT MAG ONLY. ONE MORE TOOTH SHEARING ON LT MAG WOULD HAVE RESULTED IN ENGINE SHUT DOWN. LOOKS AS IF TEETH FROM RT GEAR STUCK IMar 20, 1995 · N3844M · Piper PA32R300SDR 95ZZZX1710Ident Plate · damagedALUMINUM FOIL IDENTIFICATION PLATE FOUND TORN WHEN MAGNETO WAS RECEIVED FOR REPAIR. CORRECTIVE ACTION WAS TO INSTALL A NEW, PN 10-400006, IDENTIFICATION PLATE. IT IS EXPECTED THE NEW IDENTIFICATION PLATE WILL EXPERIENCE THE SAME CONDITION THAT LED TO DAMAGE Mar 8, 1995 · N194ER · Mooney M20JSDR 95ZZZX2054Distributor Gear · wqornOWNER COMPLAINED OF ROUGHNESS IN FLIGHT. MIXTURE CHANGE OR FUEL PUMP OPERATION WOULD NOT AFFECT ENGINE. PERFORMED MAGNETO CHECK ON GROUND. FOUND RT MAGNETO WOULD NOT KEEP ENGINE RUNNING. REMOVED RT MAGNETO AND FOUND 10 TEETH MISSING FROM DISTRIBUTOR GEAR.Mar 3, 1995 · N121RF · Piper PA46310PSDR 95ZZZX1733Impulse Coupling · wornMAG INSPECTION FOUND FLYWEIGHT TO AXLE CLEARANCE BEYOND LIMITS.Mar 3, 1995 · N9785P · Piper PA25260SDR 95ZZZX1434Magneto · defectiveAIRCRAFT LANDED ON ROAD 15 MINUTES AFTER TAKEOFF DUE TO ROUGH ENGINE AND NOT ABLE TO MAINTAIN ALTITUDE. AIRCRAFT HAS NOT RUN IN A LONG TIME. RAN AIRCRAFT ON GROUND 15 TO 20 MINUTES. MAGS CHECKED GOOD UP UNTIL THEN. STARTED GETTING REAL ROUGH, BOTH MAGS ANDMar 3, 1995 · N6110E · Cessna 172SDR 95ZZZX1433Magneto · defectiveAIRCRAFT LANDED ON ROAD 15 MINUTES AFTER TAKEOFF DUE TO ROUGH ENGINE AND NOT ABLE TO MAINTAIN ALTITUDE. AIRCRAFT HAS NOT RUN IN A LONG TIME. RAN AIRCRAFT ON GROUND 15 TO 20 MINUTES. MAGS CHECKED GOOD UP UNTIL THEN. STARTED GETTING REAL ROUGH, BOTH MAGS ANDMar 3, 1995 · N6110E · Cessna 172SDR 95ZZZX1291Coil · defectiveMAG WAS OVERHAULED AND PUT IN SERVICE 12-94. NEW NR ES652 COIL WAS INSTALLED AT THAT TIME. COIL BECAME INTERMITTENT IN ABOUT 50 HOURS TIME IN SERVICE. COIL WAS REPLACED WITH NEW NR ES10-357164-1 WHICH SOLVED PROBLEM. OCCASIONALLY, MAG WOULD QUIT COMPLETELYMar 2, 1995SDR 95ZZZX1290Cam Assy · crackedMAGNETO WAS DISASSEMBLED FOR OVERHAUL. PREVIOUSLY, HAD NEW SNAP RING IMPULSE COUPLING INSTALLED. COUPLING CAM ASSY APPEARED TO BE IN GOOD CONDITION AND LOW TIME. CAM ASSY WAS INSPECTED IAW TCM MSB NR 645, SECT. I AND FOUND GOOD. THEN CAM WAS MAGNAFLUX INSPMar 2, 1995SDR 95ZZZX1289Cam Assy · crackedMAGNETO WAS OVERHAULED AND IMPULSE COUPLING WAS THE NEW SNAP RING TYPE AS SPECIFIED IN TCM MSB NR 645. MAG WAS INSTALLED ON ENGINE. ENGINE FIRED SEVERAL TIMES, BUT DID NOT START. THEN ENGINE WOULD NOT FIRE AT ALL. NO IMPULSE CLICKING NOISE WAS NOTED. MAG Mar 2, 1995 · Cessna 172SDR 95ZZZX1425Coil · crackedCOIL MFG DATE 7-19-89. MAG SHOWED SLIGHT MISS DURING BENCH TEST. INSPECTION SHOWED COIL SECONDARY CIRCUIT OPEN AND COIL CRACKED ON END NEAR CORE LAMINATIONS. SUBMITTER STATED SEEING SAME PROBLEM MANY TIMES WITH THIS SERIES COIL. CONTINUED USE OF THIS COIL Mar 1, 1995SDR 95ZZZX1426Impulse Coupling · stop brokeTHE IMPULSE COUPLING STOP ON LEFT MAG BROKE OFF AND FELL DOWN INTO OIL SUMP. IT MADE THE IMPULSE COUPLING INOPERATIVE FOR STARTING, BUT DID NOT HARM NORMAL OPERATION OF MAG. THE STOP PIECES COULD HAVE DAMAGED ACCESSORY DRIVE GEARS, BUT DID NOT. SUBMITTER RECFeb 28, 1995 · N7487Q · Cessna U206FSDR 95ZZZX1429Housing · crackedENGINE WAS LEAKING OIL. INVESTIGATION REVEALED CRACKED MAG HOUSING AT LOWER HOLD DOWN FLANGE. GASKET SURFACE WAS CLEAN, CLAMP BLOCKS WERE PROPERLY POSITIONED AND TORQUED. CRACKED OUT SECTION REVEALED LARGE AREAS OF AIR POCKETS IN CASTING. SUSPECT CRACK STAFeb 24, 1995 · N6240C · Piper PA32RT300SDR 95ZZZX2674Coil · crackedTHIS COIL WAS INSTALLED IN MAGNETO NOT COVERED BY AD 94-01-03 OR AD 94-01-03-R1. SUBMITTER SUGGESTS REMOVING PLASTIC FLAG ON DATA PLATE SIDE OF ALL SUSPECT MAGS AND LOOK WITH A PEN LIGHT FOR IMPROPER COILS.Feb 23, 1995 · N44156 · Piper PA28180SDR 95ZZZX1218Coil · crackedCUSTOMER SAID MAG INOPERATIVE. BENCH TEST CONFIRMED. INSPECTION SHOWED CRACKED COIL. COIL RESISTANCES MEET SPECS, BUT MAG DOES NOT SPARK CONSISTENTLY. INSTALLED NEW COIL (PN M3975) AND RE-TESTED. MAG TESTS GOOD. CONDENSER TESTED GOOD. SUSPECT SECONDARY Feb 22, 1995SDR 95ZZZX1116Coil · crackedTHIS MAGNETO WAS OVERHAULED BY ELECTRO SYSTEMS, INC., IN 1987. AT THAT TIME, ELECTRO SYSTEMS AFTERMARKET COILS WERE INSTALLED. UPON DISASSEMBLY FOR OVERHAUL, DISCOVERED THE COIL WAS CRACKED IN SEVERAL PLACES.Feb 21, 1995SDR 95ZZZX1115Washer · defectiveTHESE WASHERS ARE TO SEAL THE CAP SCREWS THAT HOLD THE DRIVE BEARING RETAINER. THE WASHERS FROM ELECTROSYSTEM ARE IMPROPERLY HEAT TREATED AND ARE TOO HARD. THEY DO NOT SEAL PROPERLY AND SOMETIMES ALLOW ENGINE OIL TO LEAK INTO MAGNETO.Feb 21, 1995SDR 95ZZZX1159Coil · crackedDURING INSPECTION PER CUSTOMER INSTRUCTIONS, COIL CRACK WAS NOTED. REMOVED AND TESTED COIL. FOUND HIGH VOLTAGE LEAK OUT FROM CRACK. SUSPECT CAUSE MAY BE FROM MANUFACTURE DATE STAMP IN INSULATION. CRACK LOCATION ABOUT 1 INCH FROM OUTPUT TAB.Feb 20, 1995 · Piper PA34200SDR 95ZZZX1309Dist Block · loose bushingON DISASSEMBLING THE MAG FOR INSPECTION, THE CENTER BRONZE BUSHING IN THE DISTRIBUTOR BLOCK WAS FOUND LOOSE IN THE PLASTIC MATERIAL OF THE BLOCK. THIS IS THE SECOND ELECTRO SYSTEMS DISTRIBUTOR BLOCK FOUND IN THIS CONDITION IN LAST MONTH, THE OTHER BLOCK WAS PFeb 16, 1995 · N3205F · Mooney M20FSDR 95ZZZX1082Breaker Cam · looseACFT HAD EXCESS POWER LOSS FROM ENGINE ON CLIMBOUT. INVESTIGATION FOUND MAG BREAKER DRIVE CAM SLIPPING. CAM SCREW WAS TIGHT AND TO SPECS. SUBMITTER SUSPECTS TAPER ON ROTOR SHAFT TO BE OUT OF TOLERANCE ALLOWING CAM TO BOTTOM OUT.Feb 16, 1995 · N756QU · Cessna TR182SDR 95ZZZX2387Magneto · case crackedMAG REMOVED DURING ANNUAL INSPECTION TO INSURE AD COMPLIANCE. FOUND CASE CRACKED FROM MATING SURFACE DRIVE END TO AN AREA HALF-WAY ON THE CASE. CAUSE UNKNOWN. M OR D REPORT SUBMITTED TO ADD TO DATA BASE. REPLACED MAG. POSITION OF MAGNETO ON ENGINE WOULD MFeb 15, 1995 · Beech 9555SDR 95ZZZX1280Coil · defectiveENGINE LOST 125 RPM IN-FLIGHT, LANDED WITHOUT INCIDENT, MAG CHECK REVEALED LT MAGNETO DEAD. TROUBLESHOT AND FOUND NO DEFECTS IN MAG AFTER DISASSEMBLY. REPLACED COIL AND RAN UP AND OPS CHECKED OKAY.Feb 9, 1995 · N89414 · Cessna 152SDR 95ZZZX965Capacitor · failedDURING ENGINE RUN-UP FOR A ROUTINE 50-HOUR INSPECTION, THE MECHANIC NOTED THE RIGHT ENGINE, RIGHT MAGNETO DID NOT RESPOND TO THE IGNITION SWITCH. FURTHER INVESTIGATION REVEALED THE MAGNETO CAPACITOR TO BE FAULTY. AFTER REPLACING THE CAPACITOR, THE MAGNETO OPFeb 7, 1995 · N5094C · Cessna T310RSDR 95ZZZX790Impulse Coupling · failedAIRCRAFT WOULD NOT START. FLYWEIGHTS WORE OUT PER INSPECTION REQUIRED IN AD 78-09-07. THIS WAS THE NEW SNAP-ON TYPE COUPLING ALSO.Feb 6, 1995 · N7348X · Cessna R182SDR 95ZZZX963Magneto · separatedPILOT RETURNED TO BASE AFTER NOTICING SMOKE FROM LEFT ENGINE SOON AFTER TAKEOFF. MAINTENANCE DISCOVERED LT MAGNETO HAD SEPARATED FROM ENGINE CAUSING OIL LEAK AND SMOKE. REASON FOR MAGNETO SEPARATION IS UNKNOWN. NEW NUTS AND LOCKWASHERS HAD BEEN USED DURING Feb 1, 1995 · N27337 · Piper PA31310SDR 95ZZZX1101Distributor Gear · teeth strippedACFT WAS FLOWN ON THE PREVIOUS EVENING. NO PROBLEMS NOTED. NEXT MORNING, ACFT WOULD NOT START. AFTER TROUBLESHOOTING ACFT, FOUND MAGNETO PROBLEMS UPON DISASSEMBLY OF MAG. BOTH DISTRIBUTOR GEARS WERE SEVERELY DAMAGED (TEETH WERE STRIPPED FROM BOTH GEARS). Feb 1, 1995 · N4949S · Cessna R182SDR 95ZZZX1119Coil · failedINSTALLED NEW COIL IN BENDIX MAG -- COIL FAILED AFTER 1.6 HOURS OF FLIGHT TIME.Jan 31, 1995SDR 95ZZZX1314Distributor Gear · teeth failedTEN MINUTES INTO A TOUR FLIGHT, ENGINE BECAME MOMENTARILY ROUGH. UPON RETURNING TO THE HELIPAD, A MAG CHECK REVEALED THE RIGHT MAG WAS DEAD. UPON REMOVAL AND INSPECTION, FOUND MORE THAN HALF OF THE PLASTIC TEETH WERE MISSING (BROKEN OFF) OF THE LARGE DISTRIBJan 30, 1995 · N9087 · Enstrm F28ASDR BIER9501AMagneto · malfunctionedAT 100 HR INSP NOTICED LEFT MAG TIMEING INCORRECT. AFTER DISSASEMBLY FOUND PT.S COATED AND IMPULSE COUPLING PAST 500 HR LIMITS, VARIOUS OTHER PARTS WERE WORN WORSE THAN THE ENG REBUILDER'S CLAIMED TIME IN SERVICE OF MAG WOULD DICTATE (350 HR.S SINCE NEW). BOJan 27, 1995 · N33058 · Piper PA32260SDR 95ZZZX697Impulse Coupling · brokenDURING ENGINE RUN-UP, PILOT REPORTED EXCESSIVE RPM DROP OF RT MAGNETO AND ALSO NO VACUUM. AN INVESTIGATION REVEALED THE REAR MAGNETO BEARING FROZE AND THE IMPULSE COUPLING BROKE OFF AND DESTROYED DRIVE GEAR THAT RUNS THE VACUUM PUMP AND THE REAR ACCESSORY CASJan 26, 1995 · N9942M · Cessna 207ASDR 95ZZZX653Coil Wedge · defectiveCOIL WEDGES CAUSING DAMAGE TO COIL CORE LAMINATIONS - SEPARATION OF LAMINATIONS AND TWISTING OF LAMINATED CORE WITHIN COIL RESULTING IN CRACKS IN COIL CASING. NO PRECISE METHOD EXISTS FOR DRIVING WEDGES TO ASSURE THEY ARE TIGHT ENOUGH NOT TO FALL OUT YET NOT Jan 26, 1995SDR 95ZZZX2671Coil · failedNO HIGH TENSION RESISTANCE. SECOND COIL REPLACED ON AIRCRAFT. THIS COIL DATE CODE 91688.Jan 26, 1995 · N358Y · Beech 58SDR 95ZZZX1688Bearing · looseROTATING MAGNET FOUND GRINDING AGAINST STATIONARY MAGNET DUE TO MAIN BALLBEARING COMING LOOSE. MAG TOTAL TIME 535.2 HRS. DESIGN OF MAG PROMOTES NON-INSPECTION AT REQUIRED 500-HOUR INTERVALS. SUBMITTER SUGGESTS THE INSPECTIONS SHOULD BE MANDATORY AS THESE MAJan 26, 1995 · N2941W · Chris A1SDR 95ZZZX956Impulse Coupling · crackedDURING INSPECTION OF IMPULSE COUPLING, I.E., AD 78-09-07R3, NUT WAS LOOSE DUE TO CRACK IN BORE OF IMPULSE COUPLING. TCM BENDIX SB 639 REFERS TO INSTALLATION OF COUPLINGS. AD 78-09-07R3 DOES NOT REQUIRE REMOVAL OF COUPLING FOR INSPECTION. MAYBE IT SHOULD TO Jan 20, 1995 · N3376C · Beech F35SDR 95ZZZX589Distributor Blk · failedCENTER BUSHING IN THE DISTRIBUTOR BLOCK CAME LOOSE WHERE IT WAS CAST INTO THE BLOCK MATERIAL ALLOWING DISTRIBUTOR GEAR TO SHIFT AWAY FROM THE DRIVE GEAR CAUSING MAG TO FIRE OUT OF TIME (CROSS-FIRE TYPE OF CONDITION).Jan 19, 1995 · N6917P · Piper PA24250SDR 95ZZZX588Coil · shortedENGINE WOULD NOT START. TRACED PROBLEM DOWN TO SHORTED COIL IN LEFT MAG.Jan 10, 1995 · N46SD · Piper PA23250SDR 95ZZZX402Magneto · coil failedPILOT NOTICED ENGINE WAS RUNNING ROUGH. AN EMERGENCY LANDING WAS MADE WITHOUT INCIDENT. MAGNETO REMOVED, BENCH CHECKED, AND REPLACED.Jan 10, 1995 · N47961 · Piper PA32R300SDR 95ZZZX657Distributor · teeth failedENGINE DEVELOPED VIBRATION ON TAKEOFF. AFTER LANDING AND MAG CHECK, LT MAGNETO DEAD. DISASSEMBLY FOUND DISTRIBUTOR GEAR WITH EIGHT TEETH MISSING. FOUND ALL TEETH IN MAGNETO HOUSING. MAGNETO DISTRIBUTOR GEAR DATED 9-13-91 O/H BY MIDSTATES AIRCRAFT ENGINE, TJan 5, 1995 · N261CB · Mooney M20KSDR 95ZZZX685Distributor Gear · teeth missingDURING RUN-UP BEFORE FLIGHT, FOUND BAD MAG CHECK ON LT ENGINE RT MAG. REMOVED MAG FOR INSPECTION AND FOUND WHITE PLASTIC DRIVE GEAR INSIDE MAGNETO WAS MISSING NUMEROUS DRIVE TEETH, THE REST OF MAGNETO APPEARS SERVICEABLE.Jan 1, 1995 · N4112K · Piper PA31350
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