Faa Obstruction Lighting Advisory Circular

The change number and date of the change material are located at the top of the page.

Faa obstruction lighting advisory circular.

This advisory circular ac sets forth standards for marking and lighting obstructions that have been deemed to be a hazard to navigable airspace. Based on the results of that research the faa updated its advisory circular ac for obstruction marking and lighting in december 2015. A more accurate statement would read. Change 2 to obstruction date.

Advisory circular 70 7460 1l is effective immediately. However flashing l 810 lighting has a delayed effective date and becomes mandatory on september 15 2016. This change amends the federal aviation administration s standards for marking and lighting structures to promote aviation safety. Advisory circular 70 7460 1l is effective immediately.

Ac 70 7460 1l including change 2 pdf 4 5 mb. 150 5345 43j pdf 784 kb. Advisory circular 70 7460 1l is effective september 6 2018. 150 5345 43j specification for obstruction lighting equipment date issued march 11 2019 responsible office aas 100 office of airport safety standards airport engineering division description.

This advisory circular ac sets forth standards for marking and lighting obstructions that have been deemed to be a hazard to air navigation. New tower lighting schemes determined on or after december 4 2015 should follow the revised guidance. 70 7460 1k marking and lighting initiated by.