According to Service Aid ART 2000-104 and ART-2000 maintenance manual, the unit must be altitude tested to 55000 feet after the magnetron is replaced. In addition, the AFC and STC curves need to be recalibrated over the temperature ranges of 25, -55, -30, -5, 45 and 70 degrees C.

Therefore, calibrated altitude and environmental chambers are needed for altitude and temperature testing mentioned above. Southeast Aerospace's Service Department is one of a very few authorized Honeywell service centers that possess and utilize the necessary chamber and facilities for this testing. Please contact our Service Dept for more details.