Is there a protocol that dictates all components are scrapped or is a simple overhaul done and components that are still servicable returned to the parts pool.
Typical protocol is that engine can be returned to service by virtue of an overhaul. Protocols for exceptions generally involve fires which visibly damage external cases, and/or deformations to the load carrying structures (major cases) caused by external impacts (typically with the ground).
For the subject event in this thread I suspect that the engine will be returned to service after an overhaul.