JASC 7420
Service difficulty reports · 213
Reports filed under 7420 · Ignition Harness (Distribution), 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 = '7420' 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 = '7420' 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 OG5R2014110400650Injector · malfunctionedON RUN UP, FOUND THAT THE THROTTLE CONTROL WOULD STICK AT LOW RPM. WHEN ENOUGH FORCE WAS APPLIED TO MOVE PAST THE STICKING POINT THE RPM WOULD JUMP 200-400 RPM. AFTER DISCONNECTING THE THROTTLE CONTROL WE FOUND THE CONTROL WAS SMOOTH. THIS MADE IT DIFFICULTSDR 2014FA0000607Lead · failedFAILED NEW STYLE IGNITER LEAD.SDR ASAA2014071708607Lead · inoperativeENG NR 1 FAILED TO START - NO FUEL FLOW. ACFT GROUNDED. REPLACED IGNITION EXCITER BOX REF MM 74-11-01. FAILED RT IGNITION AUDIBLE TEST. REPLACED IGNITION LEAD REF MM 74-21-01. AUDIBLE IGNITION TEST SUCCESSFUL IAW MM 74-00-00. ACCOMPLISHED NORMAL START NR SDR ASAA2014071108531Lead · brokenFOUND CERAMIC SLEEVE BROKEN ON NR 1 ENGINE RT IGNITION LEAD. ACFT GROUNDED. R & R NR 1 ENGINE RT IGNITION LEAD IN REF AMM 74-21-01. OPS CHECK GOOD.SDR ASAA2014070608470Igniter · inoperativeNR 1 ENGINE WOULD NOT START. ACFT GROUNDED. REF FIM TASK 74-21-00-810-807-F00. EEC REPORTS NO FAULTS. RESTORED NR 1 ENGINE RT IGNITER SYS REF AMM TASK 74-00-00-040-802-F00. C/W VISUAL CHECKS OF RT IGNITER, EXCITER, LEAD, AND PLUG. FOUND RT PLUG TO HAVE CARSDR ASAA2014070408456Lead · chafedLEFT IGNITER LEAD ON NR 1 ENGINE HAS DAMAGED, BRAIDED CONDUIT FROM CHAFING AGAINST T/R BLANKET. ACFT GROUNDED. REPLACED NR 1 ENGINE LT IGNITION LEAD. OPS CHECK OK. CHECKED THAT LEAD HAS PROPER CLEARANCE FROM T/R BLANKET, CHECKED OK.SDR ASAA2013121596892Warning Message · illuminatedWHILE PERFORMING TASK CARD 78273000, FMC/CDU ENGINE PRODUCED FAULT MESSAGE 74-10972 IS OUT OF RANGE. FLT LEG 3, NR 2 ENGINE. ACFT GROUNDED.SDR ASAA2013100396103Exciter · failedDURING ENG START NR 1 ENG FAILED TO IGNITE WITH IGN LT SELECTED, QRH PROCEDURES WERE FOLLOWED TO ABORT THE ENG START, ING RT WAS SELECTED AND THE NR 1 ENG STARTED NORMALLY. ACFT GROUNDED. R & R NR 1 ENG LT IGNITION EXCITER REF AMM TASK 74-11-01/401 AND R & RSDR CALA2013082690758Harness · faultyNR 2 ENGINE DID NOT START ON NR 2 IGNITER, NORMAL START IN BOTH. PERFORMED IGNITER ADJUSTMENT TEST IAW MM 74-00-00. REPLACED NR 2 ENGINE NR 2 IGNITER PLUG PER MM. OPERATIONS CHECK GOOD. REOPENED BY OPBLM ON 24AUG13 FOR IGNITER SYSTEM STILL INOPERATIVE. RESDR CALA2013081390412Relay · failedENGINE IGNITOR RT STATUS MESSAGE. ACCOMPLISHED IGNITION SYS OPS TEST IAW AMM. TASK 74-00-00-740-801-N00 AND REPLACED ENGINE RELAY UNIT IAW AMM TASK 73-21-20 THRU ITEM 3H(5) CONT WITH 3H(6) TO END. TESTED NR 6 ELECTRONIC ENG CONTROL (EEC) IDLE CHECK IAW AMM TSDR ASAA2013072495672Ignition Lead · failedDURING START NR 2 ENGINE, NO LIGHT OFF IGNITION SWITCH IN POSITION IGN R. ACF GROUNDED. R & R RT IGNITION LEAD AND BOTH IGNITER PLUG ON NR 2 ENGINE REF AMM 74-21-01 AND AMM 74-21-02. PERFORMED IGNITION SYS TEST. TEST GOOD.SDR QXEA2013033100718Strut · chafedCHAFE DAMAGE ON LT ENGINE F6 EMS STRUT, AFT INBD SIDE. REMOVED DAMAGE AND BLENDED IAW SRM 51-14-00-02-04, REV 12. CONFIRMED AFFECTED AREA CRACK FREE REF NTM 51-00-06-910-801, PT 1, REV 9. MEASURED BLENDED AREA FOUND TO BE .5" X .2" BY .004" DEEP MATERIAL LSDR UALA2013032802017Lead · failedLEFT ENGINE IGNITER FAILED TO IGNITE USING IGNITER 1. REPLACED NR 1 ENGINE UPPER EXCITER LEAD IAW AMM.SDR CA130203001Igniter Box · failed2 CHANNEL IGNITION HAD APPARENTLY FAILED ONE CHANNEL SINCE BOTH WERE INSPECTED DURING THE SCHEDULED INSPECTION 600 HRS. WHEN 2ND CHANNEL FAILED THE ENGINE WOULD NOT START.SDR ASAA2013012393728Shroud · missingDURING ACCOMPLISHMENT OF IGNITOR PLUG T/C 78474000 FOUND THE NR 1 ENG IGNITER PLUG RT POSITION COOLING SHROUD MISSING. REPLACED NR 1 ENGINE RT POSITION COOLING SHROUD, REF T/C 78474000.SDR UALA2012102306075Ignition Lead · faultyNR 1 ENGINE NO LIGHT OFF IN IGNITION 2. START NORMAL IN BOTH. FUEL FLOW NORMAL, VALVE LIGHTS OK. REPLACED NR 2 ENGINE IGNITER LEAD. ENGINE LIGHT OFF NORMAL PER JRH WHEN SELECTED TO NR 2 ONLY.SDR UALA2012081704591Relay · inoperativeNR 2 ENGINE IGNITION DOES NOT PASS AMM, OPS CHECKED K74202 XFR-R RELAY INOPERATIVE.SDR 2012FA0000693Igniter · misinstalledDURING NR 2 ENGINE INSPECTION, IGNITER AND LEAD WERE REMOVED AND INSPECTED. AFTER INSPECTION, IGNITER AND LEAD WERE INSTALLED AND THE LEAD WAS CLOCKED INCORRECTLY ON THE ENGINE. THROTTLE LINKAGE WAS CONTACTING THE IGNITER LEAD AT FULL THROTTLE. PREVENTING TSDR UALA2012070903669Ignition Sys · malfunctionedCREW REPORTED LEFT ENGINE EXPIREANCED HUNG START, ENGINE START FAULT FOLLOWED BY EGT OVER LIMIT FAULT, NO EGT EXCEEDED. SECOND AUTO START SAME RESULT, CYCLED CIRCUIT BREAKERS A04, R41 AND F01, ACCOMPLISHED FADEC AND EIU GROUND SCANS, ANOTHER AUTO START NO HELSDR ASAA12511565Ignition Lead · failedLEFT ENGINE FAILED TO IGNITE DURING START SEQUENCE, ON GROUND. ACFT GROUNDED. COULD NOT CONFIRM NR 1 ENG NO FAULTS LOGGED. EEC TEST CHECKED NORMAL. IGNITER AUDIBLE TEST PASS BOTH LT & RT, REF FIM:74-21-00. ALSO RANG OUT & SHOOK DOWN CONNECTOR DP0201 AND FSDR UALA2011121206822Ignition Lead · shortedNR 1 ENGINE, UPPER IGNITION LEAD SHORTING TO GROUND ON PLUG END. REPLACED UPPER NUMBER 1 IGNITION LEAD.SDR UALA2011121206811Igniter · malfunctionedRIGHT ENGINR IGNITOR R1 FAILED TO IGNITE USING NR 1 UPPER IGNITER PLUG. OPS CHECKED ON MAT AND RUN-UP GOOD.SDR 2011FA0000526Lead · brokenLT ENGINE IGNITION HARNESS LEAD THAT ATTACHES TO THE SPARK PLUG IS A 90 DEGREE TUBING WITH BRAZED COUPLERS. THESE BRAZED COUPLERS ARE CRACKING AND BREAKING, REQUIRING THEIR UNSCHEDULED REPLACEMENT. 2 HAVE REQUIRED REPLACEMENT IN 283.5 HOURS TIME IN SERVICE.SDR CA101223008Ignition Lead · wrong part(CAN) NEW HARNESS WAS INSTALLED ON OVERHAULED TIO-540-J2BD ENGINE. USING THE TEST STAND, THE LEFT HALF OF THE FACTORY OVERHAULED TCM DUAL MAGNETO WOULD NOT START THE ENGINE. THE MAG WAS REMOVED AND RUN ON THE TEST STAND NUMEROUS TIMES WITH DIFFERENT CAPACITORSDR CA101203004Lead · arcedPILOTS REPORTED NO LIGHT OFF WITH AN ABORTED START. BOTH IGNITERS REMOVED FROM THE ENGINE AND THE LEADS INSPECTED FOR CONDITION. BOTH LEADS WERE FOUND TO HAVE ARCING DAMAGE JUST ABOVE THE CERAMIC TIP THAT INSTALLS IN EACH IGNITER. BOTH LEADS CHANGED AND FUNCSDR CA100922010Ignition Lead · cutFOUND NR 1 CYL TOP LEAD CUT, SPARK PLUG NOT FIRING.SDR UALA2009051101335Lead · failedLEFT ENG NO START IN NR 2 POSITION. WORKED IN BOTH. REPLACED IGNITION EXCITER, AND PLUG, NO HELP. REPLACED LEAD, OPS CHECK NORMAL.SDR UALA2009031000722Cable · defectiveHUNG START NR 2 ENG ON IGNITOR 1. SECOND START OKAY. REPLACED IGNITER BOX, CABLE, IGNITER PLUG & EXCITER (P/N47649-3). OPS CHECK OKAY.SDR ASAA0854010Circuit Breaker · poppedNR 1 ENG FAILED TO START AFTER LEVER RAISED TO IDLE N1 4.5 EGT22 N2 30 PERCENT FUEL FLOWS .50. GROUNDED YES. ENG NR 1 SHOWS MAINTENANCE MESSAGE 74 30981 RT IGNITION OUT OF RANGE. FOUND ENG NR 1 RT C/B OUT. CHECKED BEHIND P18 2 PANEL FOR CONTAMINATION OR DSDR CIE2008F00001Ignition Lead · out of positionDURING TAKEOFF, THE PILOT REPORTS THAT THE RT ENG POWER LEVER IS BINDING. MAX POWER ON TAKEOFF ROLL 83 PERCENT. ABORTED TAKEOFF AT 30 KNOTS. ONCE THE AC RETURNED TO MAINT FACILITY; THE RT ENG COWLING WAS REMOVED AND FOUND THE RT ENG OB IGNITER LEAD ELBOW POSDR CA080424005Ignition Lead · defective(CAN) DURING ROUTINE INSP OF THE ENGINE, THE LT ENG OB IGNITER LEAD WAS FOUND DEFECTIVE. UPON REMOVAL OF IGNITER FROM LEAD, FOUND THE LEAD`S CENTER ELECTRICAL POST LOOSE AT IGNITER END. APPROX ONE INCH OF THE CENTER POST OF LEAD FEEL OUT WITH CERAMIC INSULATOSDR HALA0800032Ignition Lead · inoperativeETOPS SIGNIFICANT SYSTEM, NR 1 IGNITION ON LEFT ENG INOP. REPLACED NR 1 ENG FWD LEAD PER AMM 74-21-01. CHECKED LEAD, COND SAME. REPLACED NR 1 ENG AFT LEAD, OPS CHECK GOOD PER AMM 74-21-01.SDR CA071015005Ignition Lead · damaged(CAN) WHILE CARRYING OUT A FUEL NOZZLE REPLACEMENT, FOUND A DAMAGED INSULATOR ON THE IGNITER END OF THE IGNITION LEAD. REPLACED IGNITION LEAD AND TESTED SERVICEABLE. (TC NR 20071015005)SDR DXTA200702348Ignition Lead · misinstalledNR1 ENGINE (LT) WOULD NOT MAKE TAKEOFF POWER. AIRPORT, 318 FT ELEV,TEMP 18C, TARGET T/O PWR 97.8 PERCENT. COULD ONLY GET 87.2 PERCENT AT 580 ITT. POWER LEVEL FULL FORWARD. TROUBLESHOT TO THE IB IGNITER LEAD POSITIONED INCORRECTLY AND OBSTRUCTING THE THROTTSDR 2007FA0000474Ignition Lead · out of positionWHILE DEPARTING, ENCOUNTERED A 75 PERCENT THROTTLE SPLIT WITH THE LEFT ENGINE ACHIEVING ONLY 93 PERCENT N1. A MFG PHASE B INSPECTION WAS PERFORMED ON THE AIRCRAFT ON 5/5/2007. WHILE PERFORMING THE PHASE B INSPECTION ITEM B742001, TASK 74-31-00-210 (ENGINE ISDR NACA20070008Harness · crackedNR 2 ENGINE SHUT DOWN, WOULD NOT TAKE A LEAN AND BACKFIRES IN RICH. FOUND CRACKED IGNITION HARNESS. REPLACED HARNESS REF: PURDUE MB 24-1-1. DISTRIBUTOR REPLACED IN REF: PW 2800MM CH 6 1/2. LEAK AND OP CHECKED GOOD.SDR HALA0700015Igniter · inoperativeBTB - RT ENGINE NO IGNITE, 2ND ATTEMPT START ABORTED. REMOVED AND REPLACED R ENG B IGNITER PER AM 74-20-04 OPS CK OK.SDR QXEA200602668Ignition Lead · damagedRECEIVED A RT IGNITION FAULT STATUS MESSAGE AFTER ENGINE START. RETURNED TO THE GATE. MAINTENANCE PLACED ON MEL 74-11-1A. AIRCRAFT RETURNED TO SERVICE. MEL CLEARED BY REPLACING THE IGNITION (A) LEAD. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.SDR 2006FA0000241Harness · mismanufacturedTHE AIRCRAFT HAD MAGNETO LEADS THAT NEEDED TO BE REPLACED. A NEW HARNESS SET WAS RECEIVED AND WAS INSTALLED ON THE ENGINE. THE ENGINE RAN POORLY. FOUND (T-4). ALSO NOTED THAT THE SHIELD ON NR 1 BOTTOM WIRE HAD BEEN CUT DURING MANUFACTURER AND THE SHIELD WASDR 11022005BIgnition Lead · damagedFOUND RT ENGINE FAILED ON TAKEOFF. HEARD POPPING AND THEN PROP AUTO COARSENED. PERFORMED BORESCOPE NO DEFECTS NOTED, FOUND BROKEN IGNITION LEAD. REMOVED AND REPLACED RT ENGINE OUTBOARD IGNITER LEAD, PN 4052T54P02 SN ON UNJM3914, SN OFF UNJC3349. OPS CHECKS SDR CA051027005Ignition Lead · deteriorated(CAN) ON GROUND RUN, LT MAGNETO ON FRONT ENGINE HAD A 200 RPM DROP. DURING TROUBLESHOOTING FOUND NR 4 CYLINDER TOP LEAD SHORTING FROM INNER COIL THROUGH INSULATOR TO CAP. LEAD REPAIRED, AIRCRAFT RELEASED INTO SERVICE. AFTER A FEW HOURS OF FLIGHT, THE PROBLEM RSDR KBM2005F00120Cable · chafedIGNITER CABLE, CABLE IS CHAFED AND SPARKING. REMOVED AND REPLACED. (K)SDR CA040818009Lead · broken(CAN) DURING TAKEOFF FOR A PRACTICE, NR 2 ENGINE BACKFIRED. THE LOAD OF WATER WAS JETTISONED, THE ENGINE WAS SHUTDOWN AND THE PROPELLER WAS FEATHERED. THE AIRCRAFT RETURNED TO BASE. UPON INVESTIGATION BY MAINTENANCE CREW, A BROKEN LOW TENSION IGNITION LEAD WASSDR QXEA200400396Igniter · inoperativePDX - ON FLIGHT NUMBER 2308, NR 1 ENGINE HAD NO LIGHT OFF DURING ENGINE START. THERE WAS GOOD FUEL FLOW AND ROTATION, BUT THERE WAS NO ITT RISE. EMERGENCY CHECKLIST PERFORMED. THE 2ND ATTEMPT WAS THE SAME RESULT. REMOVED AND REPLACED BOTH IGNITORS. OPERATSDR BAQA090549Ignition Lead · intermittentIGNITER LEAD INTERMITTENT. REMOVED FROM ENGINE. REPLACED WITH SERVICEABLE UNIT.SDR AUS20031061Ignition Lead · faulty(AUS) RT ENGINE NR 7 CYLINDER LOWER IGNITION LEAD DEFECTIVE AT SPARK PLUG END.SDR HEEA087455Ignition Lead · intermittentINTERMITTENT STARTING PROBLEM. REPLACED IGNITER.SDR CA030404006Harness · damaged(CAN) UPON PERFORMING THE SCHEDULED 200 HOUR ENGINE INSPECTION, THE IGNITION HARNESS ASSEMBLY WAS FOUND TOBE DAMAGED DUE TO EXCESSIVE HEAT. THE DAMAGE WAS LOCATED AT THE B5 SPARK PLUG LEAD. DIRECT EXPOSURE TO EXHAUST GASES WAS RULED OUT AS THE CAUSE OF THE DAMSDR HEEA085000Lead · chafedIGNITER LEAD CHAFED.SDR HEEA084181Ignition Lead · chafedIGNITION LEAD CHAFED.
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