Re: Beacon Inop, What do you do?
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Ya I know TOMATO FLAMES. But that doesn't necessarily say anything about the beacon.
[/ QUOTE ]You're right. The hot vegetable comment was to lruppert who pointed to 91.205 and gave an incorrect answer. I have a hypothesis that people who learned TOMATOE FLAMES or GOOSE A CAT are more likely to get an airworthiness question wrong that those who never heard of it.
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One of my questions was what is the definition of the "anti-collision light" system?. If it is the strobes and the beacon than 91.205 says that if any part of the anti-collision light system is inop than only a flight to get it repaired is allowed. I asked someone else and what they said is that if your beacon doesn't work than you can only fly if your strobes work during the day but at night you must have both, but I couldn't find it anywhere in the FAR's. From what I understand now is that it is legal to fly day VFR without a beacon
[/ QUOTE ]Let's break this up into pieces.
The first part is easy. It is legal to fly day VFR without a anticollision light system if the airplane simply doesn't have one. Aircraft were certified for years without them, and even without electrical systems to run them. That's the small 91.205(b) piece - an airplane doesn't have to have an anticollision light system in order to fly day VFR.
But 91.209 is equally clear that if an airplane has an anticollision light system it must be operating (subject to safety issues. Here's what the FAA had to say about it when it amended 91.209 (at the same time it amended Part 23 to require all aircraft certified after 1996 to have a system):
Federal Register: February 9, 1996 (Volume 61, Number 28), Page 5151-5171] (Eff 3-11-96)
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Section 91.209 Aircraft Lights
Proposed new Sec. 91.209(b) would require that airplanes equipped with an anticollision light system be operated with the anticollision light system lighted during all types of operations, except when the pilot determines that, because of operating conditions, it would be in the interest of safety to turn the lights off.
One commenter believes that the proposal is unacceptable to aircraft operators. This commenter contends that the midair collision statistics are purely conjectural and that any safety benefits are merely guesswork. The commenter also notes that this change would affect an aircraft's dispatch capability, and questions why an airplane that is perfectly capable of being flown should be grounded from daytime flight because something, such as a lamp, is defective.
The FAA agrees that there will be incidents where an airplane will be temporarily grounded from daylight operations until a failure in the light system can be repaired. However, the additional safety cue provided to pilots by operating anticollision light systems will outweigh the cost of maintaining the light system.
The proposed revision of Sec. 91.209 is adopted as proposed.
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[quote[91.205 says that if any part of the anti-collision light system is inop than only a flight to get it repaired is allowed.
[/ QUOTE ]Not really. The part of 91.205(c) that talks about flying until repair is talking about a night flight during which the system becomes inoperative:
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In the event of failure of any light of the anticollision light system, operations with the aircraft may be continued to a stop where repairs or replacement can be made. [91.205(c)(3)]
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It doesn't authorize you to take off with an inoperative light.
I don't see anything in the FAR that differentiates between day and night for the purpose of figuring out whether you need both or just one.
On your which one is the system and what if it has both strobes and beacon question, I'm really not sure. (BTW, I'm assuming that the aircraft equipment, TCDS, etc don't require it and it has been properly removed or deactivated and placarded under 91.213.)
The "required" system is described in 23.1401, so I guess that if the airplane has that one, it's the required one and you can forego the other. But that's only a guess. I don't really know enough about it from a systems perspective to know the answer. Maybe one of our AP friends has a clue.