Pratt & Whitney Cleared to Resume F-135 Engine Deliveries Written 27 February 2023

Reuters reported that Raytheon Technologies Corp. said Friday that the US government has “cleared its Pratt and Whitney unit to resume deliveries of its F-135 engine for the F-35 fighter jet, after a halt was put in place in December following the discovery of a safety concern.” In a statement, the F-35 Joint Program Office (JPO) said that its “engineers worked alongside Pratt & Whitney and Lockheed Martin to develop ‘mitigations for a rare system phenomenon involving harmonic resonance to develop a path forward for safe operation of the F135 in flight.’” The JPO added that the “actions the government and industry team are taking will ensure incorporation of mitigation measures that will fully address/resolve this rare phenomenon in impacted F135 engines.” The JPO also said that the “government was working on drawing up instructions for safely resuming flight operations for impacted and new production aircraft.”
Full Story (Reuters)