Safety in ATC operations, training, and equipment is the primary focus of all evaluation activities.
a. The ATC evaluation team chief is authorized to suspend the certification of any controller or any NAVAID that deviates or causes the deviation from standardized ATC procedures where life, equipment, or aircraft are threatened.
b. Flight inspection teams conduct preliminary checks of NAVAIDs prior to certifications or restoral. Certification of NAVAID equipment that is part of the NAS requires prior coordination with the FAA Regional Flight Inspection Field Office in accordance with TM 95-225 and FAA Order 8240.46A.
c. Upon completion of an airborne evaluation, the flight inspector will assign one of three facility status classifications in accordance with TM 95-225, paragraph 107.1.
(1) Unrestricted The status of a facility that meets all established tolerances.
(2) Restricted The status of a facility that does not meet all established tolerances (areas shall be clearly defined as unusable in a notice to airmen (NOTAM)).
(3) Unusable The status of a facility that is unsafe, unreliable, or furnishing misinformation that renders it completely unusable for navigation. A NOTAM will be issued for such facility defining it as "unusable "
d. Flight inspectors will not depart a station until they have determined that all practicable efforts have been exhausted to restore the facility to a satisfactory operating condition.