Update: As of mid-September 2019, the tower light is again working. It took 7 months.
A short distance from the back of our house is a tall radio tower. We normally see this 100 meter tall structure with some red lights along its length and a blinking red light on top. It is visible through our living room windows. This is a view one day a couple of years ago when I walked close to it.
Zoomed in on the top one can see the light that normally blinks to warn aircraft. We have a lot of low flying helicopter traffic carrying patients to the University of Iowa for medical care. It is very important for them to see it, especially at night.
In early February I noticed none of the lights on the tower were glowing. The top light was not blinking. Curiosity got the best of me. I decided to email the facilities office at the university to tell them. I assumed they already knew. But, just in case, it wouldn’t hurt. I got a quick response and was included in subsequent emails to different offices as they tried to establish who was responsible for fixing the problem.
Our View From Iowa 