JASC 7421

Service difficulty reports · 703

Reports filed under 7421 · Spark Plug/Igniter, 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 = '7421'
  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 NACA20050031Spark Plug · fouledNR 3 ENGINE SHUT DOWN DUE TO BACKFIRE AND DOUBLE SHORTED SECONDARY ON NR 15 CYLINDER. REMOVED NR 15 CYLINDER FRONT AND REAR SPARK PLUGS. NO VISUAL DEFECTS NOTED. TESTED PLUGS AND FOUND WOULD NOT FIRE. INSTALLED SERVICEABLE PLUGS. PERFORMED ENGINE OPS CHECNov 22, 2005 · N99330 · Doug DC6ASDR DXTA200501071Igniter · inoperativeDURING ENGINE START, LEFT ENGINE HUNG AT 33 PERCENT AND DID NOT START. FUEL HAD BLOWN OUT THE BACK. COMPLETED STEPS 1 THRU 8 OF TASK 72-00-00-810 IAW RR AE3007C FIM. REMOVED & REPLACED CHANNEL B IGNITER IAW RR AE3007C MM 74-21-10-000-802.Nov 9, 2005 · N947QS · Cessna 750SDR ASMF200510010Igniter Box · failedCAPTAIN REPORTED THAT DURING RIGHT ENGINE START WITH IGNITION SELECTOR IN POSITION ONE, THE RIGHT ENGINE EGT DID NOT INCREASE. AIRCRAFT WAS SENT TO THE HANGAR AND DURING MAINTENANCE REVISION WAS DETECTED THE CABLE OF THE SYSTEM TWO DAMAGED. THE EXCITER IGNITOct 16, 2005 · N703AM · Boeing 75729JSDR CA050922001Exciter · failed(CAN) ENGINE FAILED TO LIGHT AT REMOTE COMMUNITY AIRPORT. IGNITION EXCITER BOX FOUND TO BE AT FAULT. FAILED UNIT HAD BEEN REPLACED AT ENGINE CHANGE, 17.4 HRS PREVIOUS.Sep 21, 2005 · Pilats PC1245SDR KBM2005F00263Igniter · erodedRT IGNITER SEMI-CONDUCTOR ON TIP IS SEVERELY ERODED AND CENTER ELECTRODE TIP IS UNEVEN POINTED WEAR. REMOVED AND REPLACED. (K)Sep 6, 2005 · N250SH · Snias AS350B2SDR CA051019003Igniter · loose(CAN) LOOSE CENTER ELECTRODE, REMOVED FOR FEAR OF FODDING ENGINE.Sep 2, 2005 · Snias AS350BASDR CA051019002Igniter · loose(CAN) LOOSE CENTER ELECTRODE, REMOVED FOR FEAR OF FODDING ENGINE.Sep 2, 2005 · Snias AS350BASDR CA050825006Igniter · broken(CAN) DURING INSPECTION, IGNITERS WERE FOUND TO HAVE BROKEN INSULATORS.Aug 19, 2005 · Snias AS350BASDR CA050819005Igniter · damaged(CAN) INSULATION TIP LOOSE. HASN'T FALLEN OUT YET. ANOTHER OPERATOR HAS HAD TWO OCCURANCE'S WERE THE CERAMIC INSULATOR CAME RIGHT OUT.Aug 19, 2005 · Snias AS350BSDR CA050819004Igniter · damaged(CAN) INSULATION TIP LOOSE. HASN'T FALLEN OUT YET. ANOTHER OPERATOR HAS HAD TWO OCCURANCE'S WHERE THE CERAMIC INSULATOR CAME RIGHT OUT.Aug 19, 2005 · Snias AS350BSDR 2005FA0001639Spark Plug · defectiveAIRCRAFT LOST POWER WHILE TAKING OFF WITH GLIDER IN TOW. GLIDER WAS RELEASED AND WAS DAMAGED DURING LANDING IN PASTURE. AIRCRAFT RETURNED TO AIRPORT AND LANDED. TWO SPARK PLUGS ON NR 2 CYLINDER WERE COLD. ALL EIGHT SPARK PLUGS WERE REPLACED.Aug 6, 2005 · N6983B · Piper PA18A150SDR KBM2005F00216Igniter · brokenIGNITER INSULATOR BROKE LOOSE. REMOVED AND REPLACED. (K)Aug 5, 2005 · N115SH · Snias AS350B2SDR ALG2005F00042Igniter · inoperativeDURING START, THE ENGINE FLAMED OUT. SECOND ATTEMPT WAS UNSUCCESSFUL. UPON INSPECTION, THE MECHANIC REMOVED AND REPLACED THE IGNITER PLUG AND THE AC WAS RETURNED TO SERVICE. (K)Jul 11, 2005 · N188AL · Bell 206L4SDR CA050711004Spark Plug · crackedDURING ROUTINE SCHEDULED 100 HR, 1 SPARK PLUG APPEARED BENT WHILE INSTALLED IN CYLINDER. UPON REMOVAL, CONFIRMED BY INSPECTION THAT SPARK PLUG BODY HAD SEPARATED AT NECKED DOWN AREA OF METAL BODY OF PLUG ON IGNITION LEAD SIDE OF GASKET SEALING SURFACE. AFFECTJul 2, 2005 · Beech 76SDR 2005FA0000847Spark Plug · brokenSPARK PLUG MAIN INSULATOR BROKE-OFF INTO ENGINE DURING OPERATIONS BETWEEN 88 AND 106 HOURS OF USE. A MAJOR PIECE OF CERAMIC MATERIAL WAS INJESTED INTO THE ENGINE.Jun 14, 2005 · N2664M · Beech A36SDR CA050613004Spark Plug · mismanufactured(CAN) WELD EMBRITTLEMENT BELOW HEX ON SPARK PLUG BODY. UPON INSTALL 1 SPARK PLUG SEPARATED FROM THREADED SECTION LEAVING THAT PART STILL INSTALLED IN CYLINDER. VISUALINSPECTION CONFIRMED WELD EMBRITTLEMENT, REMOVED ALL OTHER 23 PLUGS AND FOUND 19 WITH SIMILAJun 10, 2005SDR CA050622003Igniter · detached(CAN) DURING ROUTINE INSPECTION THE IGNITER WAS FOUND TO HAVE A LOOSE CENTER ELECTRODE. PART WAS REMOVED FROM SERVICE AND REPLACED WITH NEW PART. PART WAS REMOVED FROM SERVICE DUE TO PREVIOUS INSTANCES OF IGNITER CENTER ELECTRODES DETACHING AND FODDING THE TJun 6, 2005 · Snias AS350BASDR CA060303017Igniter · failedNO IGNITION. REPLACED IGNITER.Jun 4, 2005 · Bell 206LSDR CA050623007Igniter · inoperative(CAN) ON ROUTINE INSPECTION BOTH ENGINE START IGNITERS WERE FOUND TO HAVE LOOSE CENTER ELECTRODES. REMOVED AND REPLACED WITH NEW IGNITERS.Jun 4, 2005 · Snias AS350BASDR ARWA20050501Igniter · defectiveDURING ENGINE START NR 1 ENGINE IGNITION -A- INOPERATIVE; TRANSFER TO DMI NR 19182 AS PER MEL 74-1-1 CATEGORY-C. REMOVED AND REPLACED NR 1 ENGINE -A- IGNITOR IN ACCORDANCE WITH M/M 74-20-02; OPERATIONAL CHECK NORMAL.May 1, 2005 · N68041 · Doug DC1010SDR KBM2005F00181Igniter · wornCENTER ELECTRODE ON RT ENGINE IGNITER WORN. (K)Apr 14, 2005 · N345SH · Snias AS350B2SDR CA050417006Igniter · damaged(CAN) CENTER CERAMIC MISSING, BOROSCOPE OF ENGINE FOUND NO DAMAGE, IGNITER REPLACED.Apr 14, 2005 · Snias AS350BSDR CA050417005Igniter · damaged(CAN) CENTER CERAMIC LOOSE, PLUG REPLACED.Apr 13, 2005 · Snias AS350BASDR CA050428003Igniter · failedENGINE WOULD NOT START. IGNITORS FOUND UNSERVICEABLE. ORIGINALLY INSTALLED APRIL 4, 2003.Mar 17, 2005 · Snias AS350BASDR 2005FA0000781Spark Plug · intermittentENGINE PERFORMANCE ROUGH ABOVE 10,000 FT. APPEARS TO BE LIKE MISS LT OR RT MAG. INSPECTED AIR FILTER, CHECKED OK. INSPECTED LT AND RT MUFFLERS FOR BLOCKAGE CHECKED OK, CHECKED ALL IGNITION WIRES WITH HIGH TENSION TEST ON CHECKED OK. CHECKED MAG TIMING CHEMar 7, 2005 · N998PM · Beech A36SDR RAIA00501053Igniter · inoperativeORF - NR 2 ENGINE WILL NOT START TRIED CROSS-BLEED AND APU. MAINTENANCE REMOVED AND REPLACED BOTTOM IGNITER ON NR 2 ENGINE.Jan 23, 2005 · N812HK · Emb EMB145LRSDR RAIA00501046Igniter · failedABE - NR 1 ENGINE WILL NOT START. MAINTENANCE REMOVED AND REPLACED IGNITERS ON LEFT ENGINE.Jan 21, 2005 · N555HK · Jetair JETSTM4101SDR 2005FA0000686Igniter · damagedIGNITER WOULD NOT THREAD INTO ENGINE LOSS DURING O/H ASSEMBLY. 1ST THREAD SHOWS DAMAGE AND FURTHER EXAMINATION SHOWS THREAD DIAMETER IS .003 INCH-.004 INCH LARGER THAN THE OTHER NEW IGNITER INSTALLED ON THIS ENGINE. THE UNDAMAGED IGNITER WAS CHECK-THREADED IJan 10, 2005SDR CA041222016Spark Plug · cracked(CAN) NR 1 TOP SPARK PLUG INSULATOR FOUND BROKEN UNDER ELECTRODES. REPLACED NR 1 TOP SPARK PLUG, REMAINING PLUGS FOR LT MAGNETO CLEANED AND FUNCTION TESTED. GROUND RUN CARRIED OUT, LT MAGNETO OPERATION NORMAL.Dec 22, 2004 · Cessna 172RSDR NACA20040058Spark Plug · crackedNR 1 ENGINE SHUT DOWN DUE TO BACKFIRING AND RUNNING ROUGH. FOUND NR 12 CYLINDER FRONT AND REAR SPARK PLUGS WITH CRACKED CERAMICS. REPLACED PLUGS, OP CHECKED GOOD.Nov 9, 2004 · N6174C · Doug DC6ASDR CA041110009Igniter · unserviceable(CAN) WHILE TROUBLESHOOTING A SLOW STARTING ENGINE, THE LT IGNITER PLUG WAS REMOVED FOR INSPECTION. AN OPERATIONAL (SPARK) CHECK WAS CARRIED OUT WITH NO DEFECTS FOUND. UPON A SECOND LOOK AT THE IGNITER, IT WAS NOTICED THE SEMI CONDUCTOR SURROUNDING THE CENTRNov 8, 2004 · Snias AS350BASDR RAIA00410026Igniter · failedSTL - RIGHT ENGINE HUNG START AT 20 PERCENT. MAINTENANCE REMOVED AND REPLACED RIGHT ENGINE IGNITERS.Oct 31, 2004 · N574HK · Jetair JETSTM4101SDR NACA20040053Spark Plug · crackedNR 3 ENGINE SHUT DOWN DUE TO NR 10 CYLINDER DOUBLE SHORTED SECONDARY. REMOVED AND INSPECTED NR 10 CYLINDER SPARK PLUGS, FOUND NO DEFECTS. SHORTED NR 10 CYLINDER TO VERIFY TIMING. FOUND TO BE OFF 6 PATTERNS. REMOVED AND REPLACED NR 16 CYLINDER FRONT SPARK POct 30, 2004 · N779TA · Doug DC6SDR P5CA0401260Igniter · failedNR 3 ENGINE IGNITION INOP ON START. REPLACED BOTH IGNITER PLUGS PER AMM 74-21-02 & SYSTEM OPS TEST OK PER AMM 74-00-00/501.Oct 24, 2004 · N355MC · Boeing 747341SDR NACA20040035Spark Plug · crackedABORTED TAKEOFF DUE TO NR 2 ENGINE LOW FUEL FLOW AND LOW BMEP. REPLACED NR 18 CYLINDER FRONT PLUG (CRACKED CERAMIC), NR 8 CYLINDER REAR INTERMITTENT, BOTH PLUGS REPLACED. REPLACED NR 18 CYLINDER REAR PLUG. INSPECTED CARBURETOR AND FIRE WALL SHUT OFF FOR RIGSep 14, 2004 · N779TA · Doug DC6SDR CA040920002Spark Plug · broken(CAN) WHEN REMOVING NR 4 CYLINDER LOWER SPARK PLUG, BROKE COMPLETELY OFF, JUST ABOVE BASE AND BELOW HEX DRIVE PORTION.Sep 13, 2004 · Cessna U206ASDR CA040728009Module · unserviceableMODULE 3 SUFFERED IMPACT DAMAGE ON 1ST STAGE BLADES. THE IGNITER HAD DISINTEGRATED.Jul 23, 2004 · Snias AS350BASDR CA040803007Igniter · broken(CAN) DURING A 100 HOUR INSPECTION IT WAS DISCOVERED THE TIP OF THE IGNITER WAS MISSING.Jul 12, 2004 · Snias AS350BASDR CA040618007Spark Plug · fouledDURING CRUISE, THE PILOTS NOTICED THE NR 4 ENGINE STARTING TO BACKFIRE, THE BACK FIRING WAS GETTING OUT OF CONTROL SO THE ENGINE WAS SHUT DOWN AND THE PROPELLER FEATHERED. DURING THE INSPECTION OF THE NR 4 ENGINE IT WAS FOUND THAT THE FRONT AND REAR SPARKS FOJun 17, 2004 · Doug C54SDR DXTA200400303Igniter · failedON FIRST ATTEMPT RT ENGINE WOULD NOT LIGHT, ON SECOND ATTEMPT ENGINE LIGHT OFF AND STARTED. AFTER ENGINE START, WHILE AT IDLE THE RT ENGINE FLAMED OUT PRIOR TO TAXI. FOUND IGNITER FIRES INTERMITTENTLY REPLACED INBOARD IGNITER AND FOUND THROTTLE NOT RIGGED COMay 2, 2004 · N335QS · Cessna 560CESSNASDR CA040428005Spark Plug · failed(CAN) DURING RUN UP, ABNORMAL DROP IN RT MAGNETO NOTED. PROBLEM TRACED TO FAULTY SPARK PLUG. TIME IN SERVICE 1 HOUR.Apr 15, 2004 · Cessna 152SDR CA040427006Spark Plug · failed(CAN) DURING RUN UP ABNORMAL DROP. RT MAGNETO PROBLEM TRACED TO DEFECTIVE SPARK PLUG.Apr 15, 2004 · Cessna 152SDR CA040427008Spark Plug · contaminated(CAN) DURING TAKEOFF, PILOT NOTICED ROUGH RUNNING ENGINE AND POWER LOSS. THREE OF THE FOUR LOWER SPARK PLUGS WHERE LEAD CONTAMINATED. NR 2 SPARK PLUG ELECTRODES WERE (WELDED) OVER WITH LEAD.Apr 7, 2004 · Cessna 152SDR NACA20040017Spark Plug · crackedNR 2 ENGINE SHUT DOWN DUE TO LOW COMPRESSION INDICATION ON NR 2 CYLINDER. REPLACED BOTH SPARK PLUGS ON NR 2 CYLINDER DUE TO CRACKED CERAMICS. CHECKED GOOD.Apr 7, 2004 · N2907F · Doug DC6SDR BAQA094226Igniter · unserviceableWARRANTY. ELECTRODE GONE IN UNIT. REPLACED WITH SERVICEABLE ASSET UNIT. 04/26/2004Mar 29, 2004 · N135MF · Urocop EC135T1SDR NAFA200400004Spark Plug · shortedNR 1 ENGINE FEATHERED DUE TO NR 11 CYLINDER DOUBLE SHORTED SECONDARY. REPLACED BOTH FRONT AND REAR SPARK PLUGS ON NR 11 CYLINDER. CHECKED GOOD.Mar 26, 2004 · N7780B · Doug DC6ASDR AUS20040216Spark Plug · cracked(AUS) SPARK PLUG CRACKED IN AREA BETWEEN HEXAGONAL BODY AND FLANGE AT UPPER THREADED AREA.Mar 23, 2004 · Piper PA31350SDR AMTA200400174Igniter · failedLEFT ENGINE FAILED TO LIGHT OFF WITH RIGHT IGNITION SELECTED. REMOVED AND REPLACED NR 1 ENGINE RIGHT IGNITOR PLUG IAW MM 74-21-02-4. OK FOR SERVICE. (M)Feb 13, 2004 · N303TZ · Boeing 73783NSDR KBM2004F00122Igniter · weakIGNITER, WEAK START IN MORNING FIRST FLIGHT. REMOVED AND REPLACED.Feb 9, 2004 · N1188P · Snias AS350BASDR NACA20040009Spark Plug · fouledNR 3 ENGINE SHUT DOWN DUE TO NR 14 CYLINDER DOUBLE SHORTED SECONDARY. REPLACED SPARK PLUGS, SHORT LEADS AND RESET VALVE CLEARANCES. CHECKED GOOD.Feb 6, 2004 · N779TA · Doug DC6
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