Mark Hansen wrote:
So, you're answer is "no". Got it. Thanks,

Actually, had you invested 5 minutes, you would have found:

"10-2-5. EMERGENCY SITUATIONS
Consider that an aircraft emergency exists and inform the RCC or ARTCC and
alert the appropriate DF facility when:
[...]
b. There is unexpected loss of radar contact and radio communications with
any IFR or VFR aircraft.
[..]"

http://www.faa.gov/ATPubs/ATC/Chp10/atc1002.html#10-2-5

Anno.