Medium Transport; Low Wing; 2 Turbojet Eng
Flight Crew Air Transport Pilot (ATP)
Situational Awareness; Workload
Deviation - Altitude Excursion From Assigned Altitude; Inflight Event / Encounter Weather / Turbulence
Air Traffic Control Issued New Clearance; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Took Evasive Action; General Declared Emergency
Weather
We performed a normal GPS Approach to Runway 23 into FWA. We continued to the missed approach point and went missed. Tower assigned us runway heading and 3;000 FT. Shortly after arriving at the assigned altitude the turbulence increased from moderate chop to extreme turbulence. I called windshear and quickly declared an emergency to Tower. I informed Tower that we were experiencing extreme turbulence and we are unable to maintain altitude. We then requested 5;000 FT when able and advised that a right turn toward west looked like our best option. Tower agreed that west to southwest would place us in better weather. We were then able to exit IMC and discuss our diversion alternatives.
An Air Carrier executed a missed approach on the FWA Runway 23 GPS approach and entered extreme turbulence so an emergency was declared because altitude could not be maintained as the flight turned to exit the embedded cell.