Summary
The FAA proposes to adopt a new airworthiness directive (AD) for CFM International (CFMI) CFM56-5, -5A, -5B, and -5C series turbofan engines. This proposed AD would require removing certain part number (P/N) air turbine starters from service. This proposed AD results from several reports of failures of uncontained air turbine starters where high-energy particles were not contained within the containment feature of the starter. We are proposing this AD to prevent uncontained failures of air turbine starters, which could result in damage to the airplane.