Transport i lotnictwo · 21/12/1998

Pratt & Whitney Proposes New Airworthiness Directive for JT9D Series Turbofan Engines

Pratt & Whitney is proposing a new airworthiness directive to address reports of Combustion Chamber Outer Casing (CCOC) rupture due to cracking in the L flange fillet radius of its JT9D series turbofan engines, requiring initial and repetitive inspections and replacement of cracked parts.