Avionics repaired and overhauled by L-3 CMRO include: attitude indicators, flight director indicators, horizontal flight instruments, computer flight directors, steering computers, generator control units, voltage regulators, bus power control units, cabin control, cabin selector units, fuel quantity indicators, torque indicators, landing lights, single and dual airflow butterfly valves, axial fans, pressure regulating valves, impeller pumps, and power supplies. CMRO is approved to the following standards: ISO 9001:2000, MIL-Q-9858A, Mil-I-45208A, TCA / FAA AMO 1/75, EASA.145.7058, and NATO AQAP-1.