What is another word for fatigue critical airplane structure?
Pronunciation: [fɐtˈiːɡ kɹˈɪtɪkə͡l ˈe͡əple͡ɪn stɹˈʌkt͡ʃə] (IPA) 
Some possible synonyms for the phrase "fatigue critical airplane structure" include:
- Essential components requiring careful monitoring to ensure safe operation
- Crucial elements prone to structural failure when subjected to repetitive stress
- Key components that must be periodically inspected and maintained to avoid catastrophic failure
- Vital structural elements that are subject to fatigue-related damage and must be regularly evaluated
- Critical features that must be carefully scrutinized for any signs of wear or degradation
- High-stress components that are subject to fatigue-induced cracking and must be closely monitored
- Key elements that are essential to the aircraft's structural integrity and must be carefully maintained
- Critical parts that are subject to fatigue-related damage and can compromise the safety of the aircraft
- Essential components that are prone to fatigue cracks and require close attention to ensure safe operation.
