What it covers
The unit used with turbine engine ignition systems for starting engines. Typical parts are exciter box, bracket, relay. The component make and model should be included.
Service difficulty reports · 300
Reports filed under 7412, newest first.
| 1995 | 7 |
|---|---|
| 1996 | 8 |
| 1997 | 10 |
| 1998 | 27 |
| 1999 | 15 |
| 2000 | 10 |
| 2001 | 22 |
| 2002 | 8 |
| 2003 | 16 |
| 2004 | 9 |
| 2005 | 3 |
| 2006 | 3 |
| 2007 | 2 |
| 2008 | 6 |
| 2009 | 12 |
| 2010 | 7 |
| 2011 | 9 |
| 2012 | 12 |
| 2013 | 15 |
| 2014 | 7 |
| 2015 | 8 |
| 2016 | 4 |
| 2017 | 6 |
| 2018 | 8 |
| 2019 | 12 |
| 2020 | 7 |
| 2021 | 9 |
| 2022 | 9 |
| 2023 | 10 |
| 2024 | 3 |
| 2025 | 11 |
| 2026 | 5 |
SDR YENA2026101200939Exciter · faultedFLT # 1577, BOS-LAS. (ETOPS) "ENG 2 IGNITION A FAULT ( IGNITION SYSTEMS SYSTEM A ) ; REMOVED AND REPLACED ENG #2 IGN EXCITER IAW AMM 74-11-01. IGNITION TEST PASS ON BOTH CHANELS WITH BOTH IGNITERS, MX-4 UPDATED PLACARD REMOVED."SDR SWAA2026080350456Exciter · failedENGINE NR 2 FUEL FLOW DROPPED TO ZERO, NO LIGHT OFF. OK TO CONTINUE PER MEL 74-1-02 SP1 T/S FAULT PER M-24-174-00061 ON TTG8Q01DEZBT. FOUND NR 2 ENG LT EXCITER BAD. REMOVED AND REPLACED LT EXCITER IAW AMM 74-11-01 ON TTG8Q01DF1NJ. OPS CK GOOD. CLEARED MEL 7SDR ABXA20260722331Exciter · defectiveON PUSH BACK & START LEFT ENG IGNITOR 1 & 2 FAILED. CREW RETURNED TO THE GATE (BTB). T/S LEFT ENG IGNITION SYS IAW FIM 74-00 F/T 809 AND SSM 74-31-01, REMOVED AND REPLACED LEFT ENG #2 EXCITER BOX PER AMM 74-11-01. SYS CKS NORMAL PER AMM 74-00-00 AUDIBLE TEST V
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