101 service difficulty reports for the Boeing 707 across 14 systems (1995–2023).
Reported systems
| System | ATA | Reports | Share |
|---|---|---|---|
| Fuselage | ATA 53 | 29 | 28.7% |
| Wings | ATA 57 | 22 | 21.8% |
| Engine - Turbine/Turboprop | ATA 72 | 10 | 9.9% |
| Landing Gear | ATA 32 | 10 | 9.9% |
| Flight Controls | ATA 27 | 8 | 7.9% |
| Hydraulic Power | ATA 29 | 6 | 5.9% |
| Air Conditioning | ATA 21 | 4 | 4% |
| Engine Air | ATA 75 | 4 | 4% |
| Fire Protection | ATA 26 | 3 | 3% |
| Pneumatic | ATA 36 | 1 | 1% |
| Nacelles & Pylons | ATA 54 | 1 | 1% |
| Engine Exhaust | ATA 78 | 1 | 1% |
| Doors | ATA 52 | 1 | 1% |
| Auto Flight | ATA 22 | 1 | 1% |
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).