Maintenance and Modifications
Composite Inner Barrel for Learjet 60 Now in Production
Quiet Technology Aerospace's solution fixes corrosion issues with the original aluminum honeycomb inner acoustic barrels in the aircraft’s PW305 engines.
Quiet Technology Aerospace's composite inner barrel replacement for the Learjet 60's P&WC PW305 engines permanently fixes corrosion issues with the original aluminum honeycomb inner acoustic barrels. It is currently working on similar solutions for the PW306-powered Gulfstream G200 and PW305-powered Hawker 1000. (Photo: Quiet Technology Aerospace)
Quiet Technology Aerospace's composite inner barrel replacement for the Learjet 60's P&WC PW305 engines permanently fixes corrosion issues with the original aluminum honeycomb inner acoustic barrels. It is currently working on similar solutions for the PW306-powered Gulfstream G200 and PW305-powered Hawker 1000. (Photo: Quiet Technology Aerospace)

Quiet Technology Aerospace (QTA) has started production of replacement engine inlet barrels made of carbon fiber composites for the Learjet 60. The retrofit, which received FAA STC approval in the fall, provides a solution to corrosion issues with the original aluminum honeycomb inner acoustic barrels in the aircraft’s Pratt & Whitney Canada PW305 engines.