Special Conditions: Pratt and Whitney Canada Model PW220A Engine; 30-Minute All Engine Operating Power Rating

Issuing agencies

Abstract

These special conditions are issued for the Pratt and Whitney Canada (P&WC) Model PW220A engine. This engine will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for aircraft engines. This design feature is a 30-minute all engine operating (AEO) power rating. This rating will be used for hovering at increased power for search and rescue missions. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.