The Federal Aviation Administration (FAA) has issued a final rule to adopt a new airworthiness directive (AD) for certain Pratt & Whitney Canada Corp. engines, specifically the PW535E and PW535E1 models. This directive is in response to findings from a design review that showed some bolts on the engines might crack due to low-cycle fatigue, which poses a safety risk. The AD mandates routine inspections and potential replacements of these bolts to prevent any danger to the aircraft. Compliance with these rules is required by April 23, 2025, and aims to ensure the continued safe operation of aircraft using these engines.
Simple Explanation
The FAA says some airplanes with certain engines have bolts that might break from being used too much, so they need to be checked and maybe replaced by April 23, 2025, to keep flying safely.