39 Placards & Markings (ATA 11) service difficulty reports for the Boeing 737 (all variants) — 0% of all reported difficulties.
Most reported components
- PLACARD 33
- UNKNOWN 2
- OUTFLOW VALVE 1
- LAMP 1
- DATA PLATE 1
- PAINT 1
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).