Low-pressure controls are a common accessory added to many refrigeration systems. They are normally used to electrically cycle a compressor on and off; however, when and why they do so will vary based ...
A new FAA mandate requires more frequent inspections of certain Pratt & Whitney PW4000-series low-pressure compressor (LPC) fan hubs and broadens the population of parts that need the checks. Set for ...
Airbus A220 and Embraer E2 operators are being advised of cycle limit amendments to the high-pressure compressor hub on their Pratt & Whitney engines. The measure is being taken after corrosion on a ...
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