What Happened
Regulatory Action Targets Pressure Burner Sensor Deterioration
The Federal Aviation Administration has issued an airworthiness directive for all Pratt & Whitney Division engines, including models PW4052, PW4056, PW4060, and others. The directive requires the replacement of pressure burner sensors due to reports of undetected deterioration, which can lead to engine fires, loss of thrust control, and in-flight shutdowns. The FAA estimates that this directive affects 210 engines installed on airplanes of U.S. registry, with estimated costs of compliance totaling $3,331,440. The directive was issued to address the unsafe condition on these products, as reported by the Federal Aviation Administration.