126 Auxiliary Power Unit (APU) (ATA 49) service difficulty reports for the Embraer E170/E175 — 0.4% of all reported difficulties.
Most reported components
- FIREWALL 68
- APU 16
- BULKHEAD 6
- PANEL 3
- SILENCER 3
- OIL SYSTEM 2
- LINER 2
- ISOLATOR 2
- INLET 2
- BAFFLE 2
- DUCT 1
- RING 1
- CONNECTOR 1
- EXHAUST DUCT 1
- CONTROL UNIT 1
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).