When should wheel bearings on landing gear be checked?

When should wheel bearings on landing gear be checked?

• A. Exactly every 12 months, regardless of model.
• B. Only at overhaul.
• C. At major inspections or per manufacturer schedule; exact interval varies by model.
• D. Never.

Answer: (C)

Maintenance intervals for wheel bearings on landing gear are determined by the manufacturer and vary by aircraft model. The best practice is to inspect them at major inspections or per the manufacturer’s schedule because different models have different wear characteristics, lubrication intervals, and seal life. This ensures any issues such as excessive play, overheating, seal leaks, or contaminated grease are caught before a failure occurs. There isn’t a universal 12-month rule, and inspections aren’t limited only to overhaul or never required.

Maintenance intervals for wheel bearings on landing gear are determined by the manufacturer and vary by aircraft model. The best practice is to inspect them at major inspections or per the manufacturer’s schedule because different models have different wear characteristics, lubrication intervals, and seal life. This ensures any issues such as excessive play, overheating, seal leaks, or contaminated grease are caught before a failure occurs. There isn’t a universal 12-month rule, and inspections aren’t limited only to overhaul or never required.