More than one emergency at once can and has happened 
Survival Techniques 
Filing a flight plan causes SAR in 30 minutes after ETA with no contact from pilot 
Crash may not activate ELT, thus check it is transmitting 
Handheld radios 
Using parts of the aircraft for survival gear 
Not flying in t-shirts and flip-flops in Alaska or over mountains. 
Nomex does have a purpose, leather gloves easily accessible, ax to open side of aircraft 
Common sense, &amp;ldquo;You are the most important survival tool on board.&amp;rdquo; 
Passenger considerations 
EPIRB vs. ELT 
Nylon stockings melt in fires. 
Ensure aircraft has 406 mHz ELT. SARSAT stopped monitoring in February 2009. 
Plan flight and on-board equipment to spend night outside in terrain overflown waiting for SAR. 
Equipped-To-Survive has excellent pocket package of survival tools. The single most important item in it could be the signaling mirror.