On July 28, 1944, the 362nd Fighter Group worked overtime to continue the momentum started by Operation Cobra three days earlier. The 378th Fighter Squadron was sent to the Domfront-Alencon-Laval area and attacked two railroad bridges, scoring 14 near-misses. The 379th Fighter Squadron bombed and strafed in the same area, claiming seven boxcars destroyed and 70 more damaged, along with a damaged locomotive. Another 378th mission saw Red Flight knock out two trucks and damage 10 more. Yellow Flight scored hits on two self-propelled guns and five trucks, and Blue Flight destroyed a pair of trucks and strafed a tank, an armored car and five trucks. The 377th Fighter Squadron flew an armed recce, strafing and destroying eight trucks and a staff car. The 378th returned again, flying a similar mission, destroying 10 trucks, an armored car and six tanks, but luck was not with was. Robert Piper of the 378th, on his first mission. Flying wing for Red Leader, Piper was about 200 yards behind him in P-47D 43-25592 when the lead’s bombs dropped on the road near Cherence-le-Heron. “Red Leader’s bombs exploded directly in front of Lt. Piper’s plane,” reported Lt. Stan Stepnitz, the No. 4 man in the flight. “The ship flew through the bomb blast and about a quarter of a mile beyond before it rolled over on its back and crashed to the ground.” Piper did not survive the impact.
As the Red Flight of the 378th was climbing after bombing a road junction, the flight’s leader, Capt. Richard Cline, saw two Bf 109s break through the overcast at about 3000 feet. “(They) saw our squadron and pulled back into the clouds,” Cline reported. “At that time, four Fw 190s broke through directly in front of us, three of which turned sharply to the right and pulled back into the clouds. The fourth, apparently the leader, remained slightly below the clouds at approximately 200 yards. I opened fire at 5 degrees deflection and observed strikes along the wing and canopy. The right gear was seen to come down as he pulled into the overcast. My No. 3 and I hosed the clouds where he was just disappearing. From the strikes observed, I believe the enemy aircraft to be seriously damaged.”
The 379th was next in the area, bombing an underpass and scoring six near misses. The 378th then launched a dive-bombing mission to the Brehal-Hombye-Villedieu area, cutting four rail junctions and destroying a tank and a command car. The 379th returned to this area later. Red flight scored six hits on a railroad junction, then destroyed two trucks and damaged 10 more by strafing; Yellow Flight scored four bomb hits on a weapons carrier and five trucks. Blue Flight knocked out two trucks and strafed a tank. A third mission by the 379th scored several hits on road junctions, knocked out a command car and strafed two Tiger tanks. Finally, the 377th flew another recce, destroying eight motorcycles, four trucks, five tanks and some horse-drawn artillery.