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The Pratt & Whitney PW4000 is a family of dual-spool, ... [15] [16] In 2019, an airworthiness directive mandated recurring engine inspections based on usage cycles.
In an airworthiness directive published on Friday, the FAA requires an ultrasonic inspection of the first- and second-stage high-pressure turbine disks within 30 days. ... Pratt & Whitney parent ...
An airworthiness directive (commonly abbreviated as AD) is a notification to owners and operators of certified aircraft that a known safety deficiency with a particular model of aircraft, engine, avionics or other system exists and must be corrected.
The Pratt & Whitney PW1000G family, also marketed as the Pratt & Whitney GTF (geared turbofan), is a family of high-bypass geared turbofan engines produced by Pratt & Whitney. Following years of development and testing on various demonstrators, the program officially launched in 2008 with the PW1200G destined for the Mitsubishi SpaceJet (a ...
The 777-200ER's Pratt & Whitney PW4000 and the A330-300's Rolls-Royce Trent 700 engines rose from a share of 18–25% in 2001 to 29–40% in 2013. For the Airbus A320neo and Boeing 737 MAX , between 52% and 57% of their value lies in their engines: this could rise to 80–90% after ten years, while new Airbus A350 or Boeing 787 engines are ...
The Pratt & Whitney Canada PW500 is a series of medium thrust turbofan engines designed specifically for business jet applications. Design
In March 2011 the FAA issued an Airworthiness Directive restricting operation of the entire fleet of EA500s to 30,000 ft (9,144 m) from its previous limit of 37,000 ft (11,278 m) and before that 41,000 ft (12,497 m). The AD was required because a build-up of hard carbon deposits on the engine static vanes caused at least six reported engine ...
The PW 300 series has been developed in partnership with MTU who are responsible for the low pressure turbine. The first variant, the PW305A, has the following configuration and was designed with a core flexible enough for engines with take-off thrusts from 20 kN to 31 kN (4,500 to 7,000 lb): a single-stage fan driven by a three-stage low pressure turbine, supercharging a four-stage axial ...