jim202 said:
It's not that the FAA just goes nuts, there are some hefty fines if tower lighting has
failed and the FAA is not notified that the lights are out. If you read the fine print,
it says that you have 15 minutes to make the call and file an official notification
after the light went out.
Any tower that is 200 feet tall and higher has to be lit. The height will determine just
what number of lights and where they will be located on the tower. This is why many
of the cellular companies have installed towers that are only 195 feet tall. They don't
need to have any lights on them unless they are near an airport and have the light
requirement as part of their tower registration from the FAA.
Don't want to split hairs here, but the tower registration is with the FCC, not FAA. The FAA will conduct a study and determine if a proposed tower is an air navigation hazard as well as the type of lighting required, but much of the enforcement has been delegated to the FCC. This was done since the FCC can not only levy fines, but also yank the transmitter license in cases where the licensee is especially negligent in maintaining lights and paint. The FCC set up the tower registration process a dozen years ago when they took this enforcement responsibility on... Part 17 is an entire chapter of the FCC rules set up specifically for marking and lighting of antenna structures. IIRC, this all came about because of a particular nasty crash of a helicopter into a Sprint tower in the early-to-mid '90s.
Believe it or not, §17.47(a)(1) of the rules still allows for visual observation of tower lighting once every 24 hours. You'd think in this day and age a tower owner would be required to have some sort of alarming to warn them immediately when the lights go out, but having someone drive by once a night to look at them is still perfectly acceptable...
BTW, §17.48(a) of the FCC regs gives the tower owner 30 minutes to correct the failure or notify the FAA. I don't know the FAA regs as well to know if this conflicts with a 15 minute time specified by the FAA, but since the FCC enforces the rules for antenna structures, 30 minutes is the one most tower owners need to worry about.
--z