What does the term 'growth' in blade maintenance refer to?

The term 'growth' in blade maintenance specifically refers to the elongation of the blade. This elongation can occur over time due to various factors such as cyclical fatigue, stress, or wear and tear from operation. The integrity of the blade is critical for performance, and understanding growth is vital for maintenance and safety inspections. If blade growth is detected, it often indicates that the blade may be approaching its service limits, which could affect performance and necessitate further inspection or replacement to ensure the safety and efficiency of the aircraft. Knowing that blade growth indicates a physical change in length helps in planning for maintenance actions accordingly.