What it covers
The engine driven component generating a direct current (DC) or a rectified alternating current for aircraft with DC electrical systems. For reports of alternators on light aircraft with piston engines. Does not include mounting brackets, drive belts and pulleys external to the unit. Typical parts are bearing, housing, coupling, fan, capacitor, drive, brush, seal, clutch, armature and bell, shaft, field winding, case bolt, ground stud, etc.
Service difficulty reports · 849
Reports filed under 2434, newest first.
| 1995 | 46 |
|---|---|
| 1996 | 63 |
| 1997 | 48 |
| 1998 | 68 |
| 1999 | 60 |
| 2000 | 53 |
| 2001 | 68 |
| 2002 | 57 |
| 2003 | 55 |
| 2004 | 30 |
| 2005 | 32 |
| 2006 | 22 |
| 2007 | 20 |
| 2008 | 13 |
| 2009 | 17 |
| 2010 | 24 |
| 2011 | 15 |
| 2012 | 27 |
| 2013 | 8 |
| 2014 | 15 |
| 2015 | 8 |
| 2016 | 14 |
| 2017 | 10 |
| 2018 | 5 |
| 2019 | 17 |
| 2020 | 10 |
| 2021 | 5 |
| 2022 | 4 |
| 2023 | 5 |
| 2024 | 14 |
| 2025 | 8 |
| 2026 | 8 |
SDR 9WQR202609170736Bolt · unsecureDURING AN ANNUAL INSPECTION THE ALTERNATOR WAS FOUND TO BE LOOSE BUT STILL WEDGED IN THE MOUNT, AND THE FAN BLADES RUBBING ON THE ENGINE/ALTERNATOR MOUNT. THE ALTERNATOR MOUNTING BOLT WAS FOUND IN THE LOWER COWLING, THE NUT AND WASHER WERE NOT FOUND. IT IS BSDR N3XR2026090100002Contactor · burnedALTERNATOR FAILED ON THE FINAL APPROACH WITH IGN PWR OFF ANNUNCIATOR. IP RECYCLED SWITCHES, BUT THE ANNUNCIATOR STILL EXISTED. REMOVED AND REPLACED CONTACTOR P/N: X61-0029 WITH NEW. THIS AIRCRAFT IS EQUIPPED WITH STC# SA02006CH: AIR CONDITIONING.SDR N3XR2026090100001Contactor · burnedBUSS E & M VOLTS AT 24.2 AFTER ENGINE START. NO CHANGE IN VOLTAGE AT ANY POWER SETTING. BATTERY AMPS DISCHARGE -7 AT ALL POWER SETTINGS. R & R ALTERNATOR 24-VOLT CONTACTOR R & R ACU WITH NEW.
See all 849 reports