Blade liberation
Definition
The detachment of a turbine or compressor blade from its rotor disk, creating a high-energy projectile inside the engine. Certification standards require the nacelle to contain the blade without catastrophic downstream damage.
Related terms
- Fracture surface analysis
- Examination of the broken face of a component to identify the failure mode. Beach marks and striations indicate fatigue, cleavage facets indicate...
- ICAO Annex 13
- The international standard that defines the objectives, conduct, and reporting of aircraft accident and serious-incident investigations. It establishes the state-of-occurrence as the...
- NTSB / AAIB
- National Transportation Safety Board (USA) and Air Accidents Investigation Branch (UK): the two national authorities whose technical methods and report standards most...
- On-condition maintenance
- A maintenance philosophy that retains components in service until inspection or sensor data indicates they have reached a defined deterioration limit, replacing...
- Pressurisation cycle fatigue
- Fatigue damage driven by the repeated inflation and deflation of the aircraft fuselage as it climbs to altitude and descends. Each flight...
Explained in
- Aviation Accident Investigation: The Engineering RoleThe detachment of a turbine or compressor blade from its rotor disk, creating a high-energy projectile inside the engine. Certification standards require the n...