What it covers
For reports of magneto coils used on select engines such as the Pratt & Whitney (PWA), Model R2800, to generate a low tension voltage to high tension voltage coil mounted at each engine cylinder. Not generally used on modern light aircraft reciprocating engines.
Service difficulty reports · 14
Reports filed under 7411, newest first.
| 2001 | 5 |
|---|---|
| 2017 | 2 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 1 |
| 2026 | 2 |
SDR 2026FA0000810Coil · damagedENGINE CYLINDER NR 4 WAS EXPERIENCING INTERMITTENT MISFIRING. FOUND LT COIL WAS GROUNDING TO ITS MOUNT THROUGH A SMALL PINHOLE IN BOTTOM OF THE COIL CASE, ELECTROAIR STATED THAT IT WAS TESTED AND "THERE WAS NOTHING WRONG WITH IT". THE COIL WAS RETURNED AND A SDR 2026FA0000302Coil · arcedENGINE CYLINDER NR 4 WAS EXPERIENCING INTERMITTENT MISFIRING. FOUND L/H COIL WAS GROUNDING TO ITS MOUNT THROUGH A SMALL PINHOLE IN BOTTOM OF THE COIL CASE.THE COIL WAS RETURNED TO ELECTROAIR FOR EVALUATION. ELECTROAIR STATED THAT IT WAS TESTED AND "THERE WAS NSDR HALA2022090600257None · noneETOPS - A/C FAULTING IGN EXC B. DUE TO HISTORY WITH C/B 2EH2 TRIPPING IN FLIGHT RPLACE ENG2 IGN UNIT 1 4000EH1 PER TSM 73-25-81-810-901-A. REMOVED AND REPLACED ENGINE 2 IGNITION UNIT 1 (4000EH1) PER AMM 74-11-34. IGNITION TEST GOOD. PN OFF/ON 430154, SN OFF J1SDR UIEA2021091402021Igniter · inoperativeRIGHT ENGINE IGNITION 2 INOP(<P>REMOVED EXISTING FOR RH ENGINE AND INSTALLED NEW EXCITER IAW B767 AMM 74-11-01, NO HELP. ITEM PLACED ON DMI # 157527 PER MEL 74-00-01B, CAT C, DUE DATE: 25SEP21. DISPATCH: ACL @ 0150Z.</P> / <P>16SEP21 - 1395764 - ITEM # 3 - CVGSDR HALA2021081000101Exciter · faultedETOPS - GN A FAULT, REMOVED AND REPLACED ENG 1 A EXCITER A330 AMM 74-11-54. OPS CK GOOD.SDR UIEA2020090841951Igniter Box · malfunctionedRT ENGINE NR 1 IGNITION INOPERABLE (IGNITION SYSTEM, EXCEPT ER OPERATIONS (NOTIFY DISPATCH ) R-60. TRANSFERRED TO MDDR 133851 IAW MEL 74-00-01B,CAT C,NO MAINTENANCE ACTIONS, PLACARD INSTALLED. R & R RT ENGINE NR 1, IGNITION EXCITOR BOX IAW B767 AMM 74-11-01.SDR UIEA2019060744389Relay · failedRIGHT ENGINE IGNITER 1 & 2 STATUS MESSAGES ILLUMINATED.(<P>REMOVED AND REPLACED #2 IGNITION EXCITER BOX. INSTALLATION OPS CHECK GOOD PER AMM 74-11-01. OFF PART (P/N 10-631045-2, S/N UNNEP031).</P><P>LP 1050597 - M4: REMOVED AND REPLACED RH ENG IGNITER PLUGS 1 SDR UIEA2017052200827Warning Message · false activationSTATUS MESSAGE LT ENGINE IGNITER. PERFORMED AUDIBLE CHECK, NO DEFECTS NOTED IAW AMM 74-00-00.SDR P5CA2017021100060Exciter · failedDURING LT ENGINE START, NO LIGHT OFF WITH IGNITOR SELECTED SINGLE. LT ENGINE STARTED NORMAL WHEN SELECTED TO BOTH. REMOVED AND REPLACED THE LT ENGINE IGNITION EXCITER NR 1 IAW AMM 74-11-01, AUDIBLE TEST CHECKED OK IAW AMM 74-00-00.SDR 2001F00303Coil · faultyLEFT MAG NR 4 ROUGH ON PARKING CHECK. COIL WAS BAD AND IT WAS REPLACED. (M)SDR 2001F00323Coil · damagedMATTER FROM INSIDE THE COIL WAS LEAKING OUT CAUSING ELECTRICITY TO RUN ELSEWHERE, NOT THROUGH COIL. (M)SDR NACA20010019Coil · shortedNR 1 ENGINE SHUTDOWN AT 2224Z DUE TO 1 BACKFIRE AND LOW COMPRESSION PATTERN ON CYLINDER NR 5. REPLACED NR 5 CYLINDER COIL, CHECKED PLUGS, LEADS, AND Y-LEAD (ALL GOOD). NORMAL ANALYZER ON RUNNUP, COMPRESSION CHECK 70/80.SDR NACA2001017Coil · shortedFEATHERED NR 2 ENGINE AT 1935 DUE TO BACKFIRING AND RUNNING ROUGH. REPLACED THE NR 16 CYLINDER IGNITION COIL.SDR 20010425CW017Coil · crackedDURING ROUTINE MAINTENANCE ON DUAL MAGNETO, A CRACK WAS FOUND ON THE RIGHT IGNITION COIL OUTER INSULATION COVERING. THE CRACK STARTED FROM THE HIGH TENSION OUTLET CLIP AND RAN ALONG THE MOLD LINE APPROX .25. BOTH SIDES OF THE CLIP HAD THE SAME TYPE OF CRACK,