1,229 Hydraulic Power (ATA 29) service difficulty reports for the Airbus A320 (all variants) — 2% of all reported difficulties.
Most reported components
- PUMP 138
- HYDRAULIC LINE 120
- LINE 117
- O-RING 82
- HYDRAULIC SYSTEM 80
- PRESSURE SWITCH 63
- SWITCH 42
- MANIFOLD 38
- CHECK VALVE 38
- HOSE 36
- B-NUT 25
- RESERVOIR 23
- PACKING 22
- ACCUMULATOR 22
- RAM AIR TURB 21
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).