62,068 service difficulty reports for the Airbus A320 (all variants) across 42 systems (1995–2026).
Reported systems
| System | ATA | Reports | Share |
|---|---|---|---|
| Fuselage | ATA 53 | 22,777 | 36.7% |
| Lights | ATA 33 | 9,183 | 14.8% |
| Equipment & Furnishings | ATA 25 | 4,823 | 7.8% |
| Doors | ATA 52 | 4,590 | 7.4% |
| Air Conditioning | ATA 21 | 4,444 | 7.2% |
| Wings | ATA 57 | 2,435 | 3.9% |
| Landing Gear | ATA 32 | 1,697 | 2.7% |
| Stabilizers | ATA 55 | 1,495 | 2.4% |
| Hydraulic Power | ATA 29 | 1,229 | 2% |
| Flight Controls | ATA 27 | 1,178 | 1.9% |
| Oxygen | ATA 35 | 1,122 | 1.8% |
| Auxiliary Power Unit (APU) | ATA 49 | 849 | 1.4% |
| Engine - Turbine/Turboprop | ATA 72 | 820 | 1.3% |
| Fire Protection | ATA 26 | 569 | 0.9% |
| Fuel | ATA 28 | 547 | 0.9% |
| Nacelles & Pylons | ATA 54 | 418 | 0.7% |
| Standard Practices - Structures | ATA 51 | 397 | 0.6% |
| Communications | ATA 23 | 394 | 0.6% |
| Electrical Power | ATA 24 | 386 | 0.6% |
| Navigation | ATA 34 | 371 | 0.6% |
| Windows | ATA 56 | 341 | 0.5% |
| Engine Fuel & Control | ATA 73 | 268 | 0.4% |
| Engine Air | ATA 75 | 233 | 0.4% |
| Engine Exhaust | ATA 78 | 226 | 0.4% |
| Pneumatic | ATA 36 | 216 | 0.3% |
| Indicating & Recording | ATA 31 | 199 | 0.3% |
| Auto Flight | ATA 22 | 183 | 0.3% |
| Ice & Rain Protection | ATA 30 | 152 | 0.2% |
| Power Plant | ATA 71 | 118 | 0.2% |
| Water & Waste | ATA 38 | 116 | 0.2% |
| Engine Oil | ATA 79 | 95 | 0.2% |
| Engine Indicating | ATA 77 | 93 | 0.1% |
| Starting | ATA 80 | 43 | 0.1% |
| Engine Controls | ATA 76 | 23 | 0% |
| Placards & Markings | ATA 11 | 14 | 0% |
| Ignition | ATA 74 | 11 | 0% |
| Other | ATA 14 | 6 | 0% |
| Central Maintenance System | ATA 45 | 2 | 0% |
| Other | ATA 37 | 2 | 0% |
| Other | ATA 83 | 1 | 0% |
| Other | ATA 18 | 1 | 0% |
| Servicing | ATA 12 | 1 | 0% |
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).