The Wall Street journal "Boeing 777 Engine Failures: What You Need to Know Raytheon’s Pratt & Whitney unit made the problem engine that caused a United flight to make an emergency landing after showering debris over parts of Colorado ..." https://www.wsj.com/articles/boeing-777-engine-failures-what-you-need-to-know-11614112288 Also, GE now makes a GE9X engine for the 777X.
Raytheon's ID was as a missiles maker. They may have done more. They must have merged with P&R. Up till that time, a P&R engine was durable and it's involvement with the Thunderbolt, Corsair and Hellcat was legendary.
