Pilot Magazine | Sep 01, 2011
If an aircraft is equipped with an "anticollision light system," as most modern aircraft are, a pilot must not "operate" that aircraft unless the system is lighted, or in other words, the anticollision lights are "on." That's the basic rule of FAR 91,209(b). Yet, there are two questions raised by the rule that we oftentimes hear debated in spirited hangar flying sessions. Now we have a recent interpretation of the FAA chief counsel that authoritatively answers these debates within the strict terms of the rule, but with important safety precautions.