✈️New FAA Airworthiness Directive on Pratt & Whitney Canada Engines
Airworthiness Directives; Pratt & Whitney Canada Corp. Engines
Summary
The FAA is adopting a new airworthiness directive (AD) for certain Pratt & Whitney Canada Corp. (P&WC) Model PW535E and PW535E1 engines. This AD was prompted by a manufacturer design review that indicated certain flange bolts securing the gas generator case and turbine support case are susceptible to cracking at their current low- cycle fatigue (LCF) life. This AD requires repetitive borescope inspections (BSI) of the gas generator case to turbine support case retaining bolts for evidence of bolt cracks, bolt fracture, missing bolts, or loose bolts and replacement, if necessary, as specified in a Transport Canada AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
Agencies
- Transportation Department
- Federal Aviation Administration
Business Impact
$$$ - High
The regulation establishes compliance requirements related to airworthiness directives, necessitating inspections and potential replacements of engine components. This impacts businesses operating affected aircraft, incurring costs estimated at up to $338,041 collectively.