Enroute controller described a loss of separation event when a military aircraft with an emergency d...

Attributes
ACN	987534
Time
Date	201201
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Aircraft 1
Make Model Name	Military
Operating Under FAR Part	Part 91
Flight Phase	Descent
Route In Use	Vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Beechcraft Twin Turboprop or Jet Undifferentiated or Other Model
Flight Phase	Cruise
Route In Use	Vectors
Flight Plan	IFR
Person 1
Function	Enroute
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	Conflict Airborne Conflict Deviation - Altitude Excursion From Assigned Altitude

Narrative:

Aircraft X was in a descent to FL220 and turned 10 degrees right for departure traffic coming out the departure gate. I advised aircraft X that there would be a delay at FL220 for enroute traffic. While in the descent; aircraft X declared an emergency and requested lower. I advised aircraft X that I could not give a clearance for lower because of a king air. Position of the king air was approximately 2 to 3 miles southeast of aircraft X. I asked aircraft X to verify he had declared an emergency because the radios where not very clear. He affirmed; I then called traffic to aircraft X (the king air) and advise when leaving FL200; aircraft X relayed that they were already out of FL190.

Original NASA ASRS Text

Title: Enroute Controller described a loss of separation event when a military aircraft with an emergency descended prior to receiving ATC clearance.

Narrative: Aircraft X was in a descent to FL220 and turned 10 degrees right for departure traffic coming out the departure gate. I advised aircraft X that there would be a delay at FL220 for enroute traffic. While in the descent; aircraft X declared an emergency and requested lower. I advised aircraft X that I could not give a clearance for lower because of a King Air. Position of the King Air was approximately 2 to 3 miles southeast of aircraft X. I asked aircraft X to verify he had declared an emergency because the radios where not very clear. He affirmed; I then called traffic to aircraft X (the King Air) and advise when leaving FL200; aircraft X relayed that they were already out of FL190.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Enroute controller described a loss of separation event when a military aircraft with an emergency descended prior to receiving ATC clearance.