by Brett_Henderson » Thu Jul 26, 2007 6:27 am
There are as many answers to this question, as there are scenarios. For starters, if you declare an "E", you got one more problem, as you'll waste time explaining (and anybody searching out forums by topic, about declaring emergencies, will have to skip this thread completely ;) )
If you're within range of, or already talking to approach or a tower or are flying IFR (or VFR flight following), you can skip the 121.5 transmission and just tell "them" what happened. If you know you're able to make it to a non-towered airport, a CTAF annoucement is your best move so that you can fly straight in.
The big determiner in what happens after the intital communication, is a function of what the problem is.
For example: If you're flying along, VFR (no flight following) and notice an oil pressure drop; your first task is to get pointed toward the nearest airport. Now.. if that airport is relatively close, just broacast on CTAF that you're losing oil pressure and are flying straight in. If it's a towered airport, just tell the tower about the oil pressure and he'll see to it that you're let straight in.. However... he might ask if you're declaring an emergency, because if it's a busy airport, that's his excuse for telling the Lear on 6 mile final to deviate and delay his landing.
I could list 100 more scenarios.. each with different steps and procedures, and I hesitate to get into specifics about how and when (and why or why not) to declare an emergency.
For a cut-and-dry emergency (engine failure), Mobius was pretty close. First you trim for best-glide; then look for a place to land; then go through re-start procedures, then declare your emergency (121.5 if you're not already in communication with a tower, approach/departure, or ATC)... Who you are, where you are, the emergency, souls on board....