FAA certified AWOS must be serviced three times per year by a qualified technician with FAA verification authority for the particular system they are servicing.
To obtain verification authority, technicians must hold an FCC General Radio-Telephone Operators' License (GROL), complete an FAA-approved training course or exam, and complete a hands-on performance exam. Refer to the FAA website for details.
Mesotech offers training to airport staff and third-party maintainers in order to meet the FAA-approved training requirement.
The specific procedures for maintaining Airport Weather Advisor systems are included in the system maintenance manual.