§  17.56   Maintenance of lighting equipment.

   (a) Replacing or repairing of lights, automatic indicators or automatic
   control or alarm systems shall be accomplished as soon as practicable.

   (b) The flash tubes in a high intensity obstruction lighting system
   shall be replaced whenever the peak effective daytime intensity falls
   below 200,000 candelas.

   [ 40 FR 30267 , July 18, 1975]

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