RTX tumbles after disclosing jet-engine problem
A Pratt & Whitney PW1000G turbofan engine sits on the wing of an Airbus A320neo aircraft during a delivery ceremony outside the Airbus Group SE factory in Hamburg, Germany, on Friday, Feb. 12, 2016.Bloomberg | Krisztian BocsiShares of RTX tumbled 14% Tuesday after the aerospace giant said a manufacturing problem with some of its popular engines will require "accelerated" inspections on about 200 airplane engines.The problem stems from powdered metal used to make some engine parts, RTX, the parent of airplane engine…