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 96ZZZX852Shaft · wornREMOVED MAGNETO DURING ANNUAL INSPECTION AND NOTICED SHAFT NUT WAS COMPLETELY STRIPPED AND HELD IN PLACE ONLY BY BROKEN COTTER PIN. REMOVED COTTER PIN AND NUT, FOUND SHAFT COMPLETELY STRIPPED AND BUSHING VERY LOOSE AND SLOPPY ON SHAFT. REMOVED BUSHING AND FOJan 26, 1996 · N5729Y · Piper PA23250SDR 96ZZZX477Gear · missing contactCONTACT THAT TRANSFERS SPARK TO EACH CYLINDER WAS NOT BUILT INTO ROTOR GEAR. GEAR WAS UNUSABLE.Jan 19, 1996SDR 96ZZZX1113Magneto · flange failedBOTH MOUNTING FLANGES OF THE SINGLE DRIVE DUAL MAGNETO WERE BROKEN. MAGNETO BACKED OUT OF ENGINE GEAR DRIVE CAUSING ENGINE TO STOP. AIRCRAFT LANDED IN OCEAN.Jan 19, 1996 · N2476Y · Piper PA28236SDR CA960122014Bearing · worn(CAN)ENGINE WAS DIFFICULT TO START. ENGINE RUN REVEALED A MAG DROP OF 300 - 400 RPM. INSPECTION OF THE MAGNETO FOUND THE BEARING AT THE MAIN DRIVE END BADLY WORN.Jan 15, 1996 · Piper PA28140SDR 96ZZZX685Adapter · wrong partTHE MAG ADAPTER INSTALLED WAS THE WRONG P/N LW-12706 WHICH IS THINNER. WHEN A NEW MAG WAS INSTALLED TO REPLACE THE OLD MAG (WHICH WAS REMOVED DUE TO A BAD BEARING AND RACE), THE NEW MAG BEARINGS LASTED ABOUT 2 MINUTES. INVESTIGATION FOUND THE WRONG PART NUMBJan 15, 1996 · N8435H · Conaer LA4250SDR AU960035Bearing · loose(AUS) MAGNETO DISTRIBUTOR END BEARING LOOSE AND SPINNING IN HOUSING - MAGNETO FILLED WITH BLACK DUSTJan 11, 1996SDR 96ZZZX390Magneto Tab · bentOPENED MAGNETO TO TROUBLESHOOT TIMING PROBLEM. FOUND COIL TAB BENT AT DOWNWARD ANGLE SUFFICIENT TO CAUSE STEEL BARREL OF CARBON BRUSH HOLDER TO BE ROTATING ON COIL TAB, DAMAGING IT SUBSTANTIALLY. THE SLICK MANUAL CALLS FOR FLUSH TO .0312 INCH FROM THE PARTINDec 29, 1995 · Mooney M20ESDR 96ZZZX1253Magneto · teeth shearedAT 702 HOURS SINCE MAGNETO OVERHAUL, A TOOTH ON THE GEAR ASSY SHEARED, AND, SUBSEQUENTLY, SHEARED THE MAJORTIY OF THE REMAINING TEETH ON THAT GEAR AS WELL AS THE OTHER GEAR ASSY. REGARDING THE OVERHAUL PROCEDURES, THE GEAR ASSYS ARE NOT A MANDATORY REPLACEMENDec 28, 1995 · N734PF · Cessna 172SDR CA951222002Magneto · teeth stripped(CAN)COMPLETE MAGNETO FAILURE (RIGHT HAND) REPORTED BY PILOT. INSPECTION REVEALED STRIPPED GEAR TEETH FOR ONE-HALF OF THE DISTRIBUTOR GEAR.Dec 11, 1995 · Cessna 180JSDR 97ZZZX3333Magneto · teeth shearedTEETH ON DISTRIBUTOR GEAR WERE SHEARED CAUSING A SEVERE MAG DROP ON LEFT MAGNETO SIDE. CAUSE UNKNOWN. A MAGNETO LOCKING TOOL WAS NOT USED DURING INSTALLATIONS AFTER AD COMPLIANCES. THIS IS A SINGLE POINT DUAL MAGNETO.Dec 11, 1995 · N733SW · Cessna 172NSDR 97ZZZX3328Magneto · teeth strippedTEETH ON DISTRIBUTOR GEAR WERE SHEARED CAUSING A VERY SEVERE MAG DROP ON RIGHT MAGNETO SIDE. A MAGNETO LOCKING TOOL WAS NOT USED DURING INSTALLATIONS AFTER AD CHECKS. THIS IS A SINGLE POINT DUAL MAGNETO.Dec 11, 1995 · N5855E · Cessna 172NSDR CA951215013Magneto · gear failure(CAN)THE MAGNETO INTERNAL DRIVE GEAR FAILED. THERE WAS NO APPARENT REASON.Dec 7, 1995 · Cessna A185FSDR 96ZZZX61Magneto · bearing looseTIME SINCE MAGNETO FACTORY REBUILT, 448.4 HOURS. DURING INSPECTION (500-HOURS), DISCOVERED FRONT BEARING RACE WAS LOOSE IN FRONT HOUSING. NOT APPARENT UNTIL WIPED GREASE OFF TO REPLACE WITH NEW GREASE. SUSPECT CAUSE: MAXIMUM TOLERANCE FIT WHEN ASSEMBLED ATDec 6, 1995 · N1851Y · Cessna 172CSDR CA951206004Gasket · failed(CAN)PILOT REPORTED HIGH MAG DROP DURING RUN-UP. MAGNETO WAS INSTALLED WITH THE WRONG GASKET RESULTING IN THE MAGNETO BEING LOOSE ON ITS MOUNT BASE AND CAUSING THE MAGNETO TO OPERATE OUT OF TIME. CORRECT GASKET SHOULD HAVE BEEN P/N 534750. N.B. THIS PROBLEDec 5, 1995 · Cessna 150HSDR CA951130010Gasket · stressed(CAN)REPORT OF A ROUGH RUNNING ENG, LED TO FINDING A MAG LOOSE ON FLANGE & THAT THE HOLD DOWN NUTS HAD BACKED OFF & MT FLANGE WAS SEVERELY WORN.MAG CASE WAS REPLACED. REPAIRED MAG WAS RETURNED WITH A P/N 62224 GASKET THAT HAS THE MOUNT EARS INCORPORATED.SUBMINov 28, 1995 · Cessna TR182SDR 95ZZZX6566Filter · defectiveFOUND MAGNETO FILTER DEFECTIVE WHEN SUBJECT TO MAGNETO P-LEAD VOLTAGE OR HIGH TENSION LEAD TESTER VOLTAGE. REGULAR OHM CHECK DID NOT PICK UP DEFECT. ENGINE WOULD RUN INTERMITTENTLY BAD ON THIS MAGNETO. THIS IS AN AFTER-MARKET PART INSTALLED IN LINE WITH P-LNov 22, 1995 · N55DP · Cessna 310PSDR CA960311004Magneto · out of adjust(CAN) ON TAKEOFF, THE LEFT ENGINE SUFFERED A POWER LOSS, CAUSING A YAW TO THE LEFT. THE PILOT WAS UNABLE TO CONTROL OR STOP THE AIRCRAFT DUE TO ICY CONDITIONS AND THE AIRCRAFT RAN OFF THE END OF THE RUNWAY INTO GRASS AND BUSHES. INSPECTION BY MAINTENANCE REVNov 20, 1995 · Cessna 421CSDR ZWZA0013Magneto · failedLEFT MAG, LEFT ENGINE, HAS DEAD MAG ON GROUND RUN CHECK. THE FAILED MAGNETO HAD 33.6 HOURS SINCE BEING OVERHAULED. THIS WAS THE THIRD MAG FAILURE IN A ROW, SAME MAG, SAME PLANE, SAME OVERHAULER. (X)Nov 18, 1995 · N80Q · Cessna 402BSDR 95ZZZX6775Magneto · wornMAGNETO FLANGE WEAR. A D6LN-3000 (DUAL MAGNETO) WAS FOUND TO HAVE ITS BASE CLAMPS SECURED. HOWEVER, THE MAGNETO WAS ABLE TO CHAFE BETWEEN THE FLANGE AND THE HOLD-DOWN CLAMP. THIS CAUSED A WEAR PATTERN THE SHAPE OF THE 'MOUSE EAR CLAMP', PN 66M19385, INTO THNov 14, 1995 · N3421W · Piper PA32RT300SDR 95ZZZX6612Magneto · defective'ACCESSORY CASE OIL LEAK'. A FACTORY LYCOMING ENGINE HAD A PERSISTENT SLIGHT OIL SEEP AT THE MAGNETO BASE. AFTER REMOVAL, IT WAS FOUND TO HAVE A FLAW IN THE APPARENT CASTING. A LOW SPOT IN THE GASKET AREA ALLOWED OIL TO SEEP BY. PART WAS REPLACED FOR THIS Nov 14, 1995 · N3421W · Piper PA32RT300SDR 95ZZZX6547Magneto · coil failedMAG FAILURE TRACED TO BAD COIL.Nov 13, 1995 · N6591M · Cessna T210MSDR 95ZZZX6772Magneto · corrodedPILOT EXPERIRENCED ROUGH RUNNING ENGINE AFTER DEPARTING AIRPORT. PILOT RETURNED TO AIRPORT AND HAD MAGNETOS CHECKED. BOTH MAGNETOS WERE SEVERELY CORRODED INSIDE. ONE MAGNETO WAS DEAD. PILOT ELECTED TO REPLACE BOTH MAGNETOS WITH NEW UNITS. THIS IS THREE MANov 10, 1995 · N6086C · Cessna T210NSDR 95ZZZX6771Magneto · corrodedPILOT EXPERIRENCED ROUGH RUNNING ENGINE AFTER DEPARTING AIRPORT. PILOT RETURNED TO AIRPORT AND HAD MAGNETOS CHECKED. BOTH MAGNETOS WERE SEVERELY CORRODED INSIDE. ONE MAGNETO WAS DEAD. PILOT ELECTED TO REPLACE BOTH MAGNETOS WITH NEW UNITS. THIS IS THREE MANov 10, 1995 · N6086C · Cessna T210NSDR 95ZZZX6409Magneto · corrodedREMOVED MAGS AND OPENED UP FOR CORROSION INSPECTION PER OWNER'S REQUEST. BOTH MAGS WERE FULL OF CORROSION OF ALL METAL SURFACES. MAGS WERE INSTALLED NEW 11/94 FOR SAME REASON. FILTERS CHANGED REGULARLY.Nov 1, 1995 · N511PJ · Piper PA46310PSDR CA951109005Magneto · stripped gear(CAN)SHORTLY AFTER TAKEOFF THE #1 ENGINE BACKFIRED AND RAN ROUGH. AIRCRAFT RETURNED AND LANDED. MAINTENANCE FOUND LEFT HAND MAGNETO DEAD. INVESTIGATION REVEALED THAT THE PHENOLIC CAM DRIVE GEAR HAD ALL THE TEETH STRIPPED BY THE STEEL GEAR IT MESHES WITH. CAUSEOct 31, 1995 · Doug DC3CS1C3GSDR 96ZZZX176Coil · defectiveDURING RUN-UP, RT MAG DROP WAS EXCESSIVE OR ENGINE WOULD STOP. MAGNETO WAS DISASSEMBLED AND POINTS AND CONDENSOR REPLACED DUE TO WORN CONDITION. COIL WAS TESTED AND THE SECONDARY WAS FOUND TO HAVE APPROXIMATELY 5 MILLION OHMS RESISTANCE. THE SPEC IS 13,000-Oct 31, 1995 · N19992 · Cessna 172MSDR ZWZA0012Magneto · failedDURING REPOSITIONING OF AIRCRAFT, NOTICED DEAD LT MAG ON LT ENGINE. CHANGED MAG WITH SERVICEABLE UNIT, BUT NOTICED DEFECTIVE MAG WAS RECENTLY OVERHAULED AND HAD ONLY 213.8 HOURS SINCE OVERHAUL. (X)Oct 30, 1995 · N80Q · Cessna 402BSDR 95ZZZX6550Spring · brokenMAGNETO IMPULSE FAILED TO OPERATE. ON DISASSEMBLY, IMPULSE SPRING FOUND BROKEN IN TWO PLACES NEAR THE OUTER END. SPRING IS APPARENTLY TOO BRITTLE.Oct 30, 1995SDR 96ZZZX5138Magneto · coil failedON MAY 4, 1995, DUE TO HARD START PROBLEM, THE LEFT MAG COIL WAS FOUND DEFECTIVE. ON OCTOBER 28, 1995, THE RIGHT MAG FAILED IN-FLIGHT DUE TO A DEFECTIVE COIL.Oct 28, 1995 · N679CM · Amtr RV6SDR 96ZZZX5137Magneto · coil failedON MAY 4, 1995, DUE TO HARD START PROBLEM, THE LEFT MAG COIL WAS FOUND DEFECTIVE. ON OCTOBER 28, 1995, THE RIGHT MAG FAILED IN-FLIGHT DUE TO A DEFECTIVE COIL.Oct 28, 1995 · N679CM · Amtr RV6SDR 96ZZZX177Coil · crackedWHILE DETERMINING C/W TELEDYNE AD 94-01-03R2, FOUND RIGHT MAGNETO TO HAVE AN UNAIRWORTHY COIL. UPON REMOVAL, COIL WAS FOUND CRACKED IN TWO PLACES ORIGINATING FROM THE CORE ON THE GROUND LEAD END. LOG ENTRY OF 2-20-88 INDICATES THIS MAGNETO COIL WAS CHANGED TOct 26, 1995 · N87873 · Piper J3C65SDR 95ZZZX6390Magneto · misoverhauledRECEIVED ZERO TIME REBUILT MAG FROM TCM. RETARD POINTS WERE SET TO BOOK SPECS OF 11 DEGREES, BUT RETARD POINTS GAP WAS .004 INCH. BOOK SPEC IS .016 PLUS OR MINUS .004 INCH. THIS MAG BUILT UNDER WORK ORDER NR 862174-2, AND MAINTENANCE RELEASE IS DATED 12-14-Oct 26, 1995SDR 95ZZZX6569Distributor Blk · crackedDURING INSPECTION OF MAG, FOUND DISTRIBUTOR BLOCK CRACKED AT BEARING BORE. ALSO, NOTED THAT BREAKER ADJUSTING SCREW INSERTS WERE PULLING OUT ALLOWING BREAKERS TO LOOSEN. THIS COULD CAUSE MAG TO STOP FUNCTIONING. NOTE THAT THIS IS AN ELECTRO SYSTEMS FAA-PMA Oct 24, 1995SDR 95ZZZX6380Coil · failureLEFT MAGNETO FAILURE DUE TO COIL FAILURE (SECONDARY WINDINGS OPEN).Oct 24, 1995 · N2086T · Piper PA28R200SDR 95ZZZX6379Coil · openLEFT MAGNETO FAILURE DUE TO OPEN IN SECONDARY WINDING OF THE COIL.Oct 24, 1995 · N6070R · Cessna 172GSDR 95ZZZX6184Distributor Blk · loose bushingDURING PREFLIGHT RUN-UP, FOUND RIGHT MAGNETO INOPERATIVE. REMOVED AND DISASSEMBLED MAG. FOUND DISTRIBUTOR BLOCK CENTER BUSHING LOOSE. THIS CAUSED TIMING GEAR TO SHIFT POSITION AND CHANGE INTERNAL TIMING. OTHER DAMAGE NOTED WAS DEFORMED TIMING GEAR. TIMINGOct 16, 1995 · N11562 · Piper PA28R201SDR 95ZZZX6014Distributor Gear · destroyedPILOT EXPERIENCED ROUGH ENGINE. UPON LANDING AND GROUND RUN-UP, RIGHT MAGNETO WAS DISCOVERED DEAD. DISASSEMBLY SHOWED THAT ELECTRODE POSTS IN DISTRIBUTOR BLOCK ASSEMBLY HAD COME IN CONTACT WITH ELECTRODE FINGER ON DISTRIBUTOR GEAR. ELECTRODE FINGER WAS TORNOct 12, 1995 · N6352Z · Cessna TU206GSDR 95ZZZX6759Coil · openLEFT MAG INOP ON RUN-UP. REMOVED MAGNETO AND DISASSEMBLED. ELECTRICALLY CHECKED COIL AND FOUND OPEN CIRCUIT. REPLACED COIL WITH SERVICEABLE COIL AND OPS CHECK OK. DATE CODE ON FAILED COIL: 9/16/91.Oct 10, 1995 · N49191 · Cessna 152SDR 95ZZZX6686Rotate Shaft · shearedPILOT REPORTED RIGHT MAGNETO WAS INOP. REMOVED MAGNETO AND DISASSEMBLED. FOUND SHAFT END WITH CAM AND ROTOR GEAR SHEARED. LOCATION OF SHEAR WAS AT BASE OF CAM SLOT. POSSIBLE MANUFACTURING DEFECT AS CAUSE.Oct 6, 1995 · N61442 · Hughes 269CSDR 96ZZZX2647Points · failedENGINE FAILED ON TAKEOFF. FOUND METAL FILINGS AROUND TRIGGER POINTS WHICH GROUNDED OUT IGNITION SYSTEM. UNABLE TO FIND WHERE FILINGS CAME FROM.Sep 29, 1995 · N42AR · Amtr KITFOXSDR 95ZZZX6821Oil Seal · leakDURING A 50-HOUR INSPECTION, OIL WAS FOUND IN THE LEFT MAGNETO ON THE LEFT ENGINE. THE OIL SEAL WAS REPLACED AND THE MAGNETO WAS PUT BACK INTO SERVICE. 168.5 HOURS SINCE FACTORY OVERHAUL.Sep 26, 1995 · N5198J · Cessna 402BSDR 95ZZZX6820Oil Seal · leakDURING A 100-HOUR INSPECTION, OIL WAS FOUND IN THE LT MAGNETO ON THE RT ENGINE. THE OIL SEAL WAS REPLACED AND THE MAGNETO WAS PUT BACK INTO SERVICE. 433.1 HOURS SINCE FACTORY OVERHAUL.Sep 26, 1995 · N5199G · Cessna 402BSDR 95ZZZX5929Contact Assy · brokenDURING PRE-FLIGHT ENGINE CHECK, PILOT NOTED THE RIGHT MAGNETO ON THE LEFT ENGINE DEAD. MECHANIC REMOVED MAGNETO AND DISCOVERED THE CONTACT ASSY CAM FOLLOWER ARM BROKE JUST FORWARD OF THE SECURING SCREW. CAUSE OF BREAK UNKNOWN.Sep 25, 1995 · N421BP · Cessna 421BSDR 95ZZZX5763Coil · openPILOT REPORTED RT MAG INOPERATIVE. INVESTIGATION FOUND MAGNETO COIL OPEN, COIL REPLACED AND MAGNETO FUNCTIONED NORMALLY. SUBMITTER STATED THIS IS 4TH SUCH PROBLEM WITH THIS COIL (ORANGE). NEW COIL IS BLACK, PN M3575.Sep 25, 1995 · N6154Q · Cessna 152SDR 95ZZZX6066Magneto · gear flatedPILOT REPORTED PARTIAL LOSS OF POWER ON TAKEOFF. TROUBLESHOT TO LEFT MAGNETO, STRIPPED DISTRIBUTOR GEAR. REPLACED LEFT MAGNETO WITH OVERHAULED UNIT. GROUND RUN AND OPERATIONAL CHECK GOOD.Sep 22, 1995 · N2738G · Dhav DHC2MK1SDR 95ZZZX5925Distributor · brush looseMAG INOPERATIVE. FOUND DISTRIBUTOR SHAFT BLUE. OPENED MAG AND FOUND DISTRIBUTOR BRUSH LOOSE IN MAG CASE. FOUND DISTRIBUTOR GEAR HUB AND COIL FINGER DAMAGED BY ARCING. BRUSH EITHER FELL OUT OR WAS INSTALLED IMPROPERLY. MAG RAN SEVERAL HOURS USING BRUSH SPRSep 21, 1995SDR YADA95001Gear Assy · teeth failedBOTH GEAR ASSYS (LEFT AND RIGHT) HAVE BROKEN TEETH AND CRACKS. THIS SITUATION CAUSED ENGINE TO QUIT OPERATING. THE ENGINE WITH THE MAG WAS INSTALLED ON 6-7-95 AND THE ENGINE QUIT OPERATING ON 9-16-95 WITH 334.8 HOURS SINCE OVERHAUL. ENGINE FAILURE OCCURRED Sep 19, 1995 · N1063H · Piper PA32R300SDR 95ZZZX6928Capacitor · faultyENGINE EXPERIENCED EXTREME ROUGHNESS AND HIGH RPM DROP ON LEFT POSITION OF 1800 RPM MAG CHECK. NR 4 AND NR 5 CYLINDERS WENT COLD ON G.E.M. FOR 3 SUCCESSIVE CHECKS. PLUGS AND WIRES CHECKED OK TO BOTH CYLINDERS. MAG WAS REMOVED AND INSPECTED WITH NO OBVIOUS DSep 15, 1995 · N6562S · Cessna R182SDR 95ZZZX5640Capacitor · corrodedMAGNETO FAILED, REMOVED AND DISASSEMBLED AND FOUND SEVERE CORROSION ON DISTRIBUTOR GEAR, PN M-3056, ROTOR GEAR, PN 3828, POINT SET M3081 AND CAPACITOR, PN M-3816. CAUSE OF FAILURE WAS LOCK RING HOLDING PIG TAIL ON CAPACITOR TERMINAL HAD CORRODED AND SPLIT LETSep 14, 1995 · N135BG · Cessna 414ASDR 95ZZZX6183Contact Points · failedCONTACT POINTS' SOFT PLASTIC THAT RIDES THE CAM WORE DOWN UNTIL THERE WAS NO CONTACT POINT OPENING (MAG FAILURE). THE ROTATING MAGNET CONTINUED TO MAKE ELECTRIC ENERGY, SENDING IT TO THE CAPACITOR, OVERLOADING THE CAPACITOR, CAUSING IT TO BURN ITSELF OUT. THSep 12, 1995 · N8566L · Piper PA25235
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