Aero Precision Holdings subsidiary DAC International has received FAA STC approval for the Northrop Grumman Litef LCR-100 attitude heading and reference system (AHRS) in the Cessna Citation 560, Excel, and XLS. The LCR-100 is a drop-in replacement for the older LCR-93, according to DAC, “which means very little downtime and modifications to the aircraft to perform this installation.”

Designed with fiber-optic gyro technology, the LCR-100 “is capable of self-aligning [gyro compassing] and does not require magnetic sensors for heading alignment,” according to Northrop Grumman Litef. The unit also can integrate external or embedded global navigation satellite system data to provide a hybrid output for “a blended position solution for navigation and flight control purposes.”

“We’re excited to be able to now offer this STC to our customers,”said DAC president Cisco Hernandez. “This STC allows units to be exchanged separately or at the same time, thus making it much easier for the operators to incorporate [in their aircraft].”