§  17.47   Inspection of antenna structure lights and associated control
equipment.

   The owner of any antenna structure which is registered with the
   Commission and has been assigned lighting specifications referenced in
   this part:

   (a)(1) Shall make an observation of the antenna structure's lights at
   least once each 24 hours either visually or by observing an automatic
   properly maintained indicator designed to register any failure of such
   lights, to insure that all such lights are functioning properly as
   required; or alternatively,

   (2) Shall provide and properly maintain an automatic alarm system
   designed to detect any failure of such lights and to provide indication
   of such failure to the owner.

   (b) Shall inspect at intervals not to exceed 3 months all automatic or
   mechanical control devices, indicators, and alarm systems associated
   with the antenna structure lighting to insure that such apparatus is
   functioning properly.

   (c) Is exempt from paragraph (b) of this section for any antenna
   structure monitored by a system that the Wireless Telecommunications
   Bureau has determined includes self-diagnostic features sufficient to
   render quarterly inspections unnecessary, upon certification of use of
   such system to the Bureau.

   [ 61 FR 4363 , Feb. 6, 1996, as amended at  79 FR 56986 , Sept. 24, 2014]