Quiet Technology Aerospace (QTA) has received STC (Supplemental Type Certificate) # ST04464AT approval for its seventh airframe specific carbon fiber engine inlet replacement barrel. This STC offers a terminating solution for Embraer Legacy 450/500 and Praetor 500/600 operators over the plaguing issue of engine Inlet Cowl inner barrel corrosion on the Honeywell HTF7500 engine inlets. This represents QTA’s third inner barrel STC for aircraft powered by the HTF 7000 series engine.
Combating an expensive and time-consuming problem of aluminum inner-barrel corrosion and acoustic screen degradation on the 130 Embraer EMB545/550 series aircraft in service, QTA replaces the aluminum based inner barrel with a lighter weight state-of-the-art Carbon Graphite Composite Barrel which terminates the root cause of the corrosion issue; and comes with a lifetime warranty that remains with the aircraft’s serial number and transfers to any future owner. It is the only permanent solution available.
When installed, the inlets appearance is better than originally manufactured. This is not a repair to the original aluminum inlet which will certainly fail again, potentially causing engine damage in flight. It is a permanent and terminating solution to the corrosion issue.
The latest QTA program STC is valid for Embraer Legacy 450/500 series aircraft as well as to the next gen Embraer Praetor 500/600 aircraft. The Embraer aircraft part number replaced is WBE7160E101-045.
The Embraer Legacy solution is QTA’s seventh approved STC in their carbon fiber engine inlet solution program that began in 2015. Other inner barrel corrosion affected airframes benefitting from QTA’s state of the art engineering and carbon fiber manufacturing are the Lear 60, Gulfstream G200 & G280, Hawker 1000, Falcon 2000LX/EX and Challenger 300/350 series.
In its 35 year history, exactly zero QTA’s inlet upgrades have failed on aircraft operating over 20 years. The company’s first inlet upgrade was for the Douglas DC-8 in 1986.
