Walk the line Published Feb. 4, 2011 By Staff Sgt. Roberto Modelo 911 AW/PA PITTSBURGH IAP ARS -- Staff Sgts. Matt Walsh, an aircrew flight equipment specialist with the 911th Operations Support Squadron and Jason Cornelius, noncommissioned officer in charge of training, aircrew flight equipment, 911th OSS walk the length of a stretched-out BA-18 back parachute for inspection purposes here, Feb. 2. The parachutes are used on the C-130H cargo aircraft in the case of an emergency that would require aircrew to exit the plane during flight.