What it covers
For general reports of APU operation indicating including the temperature indicator, tachometer generator or indicator (engine speed). Includes the instrument and associated warning system which sense, transmits, and indicates APU engine speed and temperatures to the flight crew.
Service difficulty reports · 272
Reports filed under 4970, newest first.
| 1995 | 2 |
|---|---|
| 1996 | 5 |
| 1997 | 5 |
| 1999 | 1 |
| 2000 | 5 |
| 2001 | 9 |
| 2002 | 1 |
| 2003 | 5 |
| 2004 | 2 |
| 2005 | 3 |
| 2006 | 6 |
| 2007 | 11 |
| 2008 | 3 |
| 2009 | 7 |
| 2010 | 6 |
| 2011 | 20 |
| 2012 | 19 |
| 2013 | 13 |
| 2014 | 12 |
| 2015 | 5 |
| 2016 | 11 |
| 2017 | 11 |
| 2018 | 49 |
| 2019 | 24 |
| 2020 | 25 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 2 |
| 2025 | 3 |
| 2026 | 1 |
SDR SWAA2026101474131Apu · fault messageAPU FAULT LIGHT ILLUMINATED. APU AUTO SHUTDOWN, TURNED APU SWITCH OFF ACCORDING TO QRH. FAULT LIGHT EXTINGUISHED AFTER 3 MIN. FOUND FAULT MSG 49-15003, PERFORMED IFIM TASK 49-10-00-810-803. APU FAULT LIGHT EXTINGUISHED & FAULT NOT ACTIVE MSG CLEARED.SDR UIEA2025120501334Warning Message · illuminatedEICAS APU INDICATION IN FLIGHT. APU DUCT LEAK STATUS MSG. QRH COMPLIED WITH (APU FIRE HANDLE PULLED)(<P>OPERATED APU FOR ABOUT 3 HOURS WITH BLEED ON, NO LEAKAGE OBSERVED AND DETECTED REF AMM 49-11-00-862-001.SDR ABXA20251019274Battery · faultedDURING TAXI ,APU BATTERY, NO STBY STATUS MESSAGE DISPLAYED. ADVISED BY MTC TO RETURN TO PARKING (BTB). MTX GROUNDED ACFT AND REMOVED AND REPLACED APU BATTERY IAW AMM 24-31-04 AND REMOVED AND REPLACED APU BATTERY CHARGER IAW AMM 24-31-04. OPS CHECK GOOD. ACF
See all 272 reports