Here's a fuller account by W.Budd Wentz,the man who was flying the aircraft on that day. He survived the war and became,I think,a medical doctor.
"On the morning of my wife, Bette's, birthday Saturday, April 7, 1945, we set out on a mission to bomb a ME-262 jet airfield at Parchim, Germany. We took off from Lavenham, England (station 137) flying the B-17G-105-BO (#43-39126) we were assigned in March in position #4 under the Group Leader's plane. The 838th Squadron was leading that day. The weather was excellent with only a few puffy clouds at about 20,000 feet. At approximately 13:10 hrs, I took the controls from the co-pilot while continuing to monitor the Group radio channel. The talk was relatively quiet with no calls announcing any German fighters or flak at that time. [NOTE - The 486th Bomb Group Association indicates that the 486th BG (H) dropped incendiaries on the Me-262 jet base over Parchim, GR at 1357 LST, 7 April 1945.]
Suddenly, while on route to the IP, we received a terrific jolt and bang. I tightened up on the wheel to prevent it from swerving. The waist gunner reported over the intercom that our plane had been hit in the tail by an ME-109 diving down from 4 o'clock high.
The tail gunner, Sgt. Jewell, was shoved forward 4-5 feet, but was only banged around. The plane was functioning okay so I held position for a few moments. The crew reported pieces of the tail and rudder were coming off. The engineer in the top turret reported that the vertical stabilizer was severely damaged. From the left side of the plane the crew observed that an ME-109 had severely damaged its right wing and was spinning down out of control. No parachute was seen while the crew had the ME-109 in view.
Not wanting to damage any other planes, I increased speed and planned to dive forward out of the formation. Unfortunately the plane didn't dive when I pushed the wheel forward. I flew ahead of the formation and then cut the throttles back and let down in a flat aspect. After leaving the formation, I found that kicking the rudder didn't turn the plane either. We couldn't climb, dive or turn; it was apparent that I had no rudder or elevator control. Keeping the airplane level, I let down and turned by cutting the throttle on the outboard engine on that side and skidded around.
To prepare for emergency landing we dropped our bomb load in an open area then headed in a westerly direction while making a large circle to keep a flat attitude. The crew continued to report pieces falling off. I felt I had better get the plane on the ground. The navigator and bombardier found an airfield to the north with a single light gray runway. It could be worn asphalt or concrete. Low trees and cut grass surrounded the area. I approached in a northern direction and touched down. It had been only about 20 minutes since we were hit. It was odd that we hadn't see any other fighters near our plane on our descent. We didn't know if any other B-17s were hit.
On the right side of the runway, in the southeast quadrant, there was one or two small 1-story low buildings. Several new looking ME-262s were lined up under the trees. It was definitely a small facility in a very rural location without much fanfare. In 2005, I learned it was Wernershohe.
We were in Germany and expected to be in a Stalagluft as POWs in short order. At least we were on the ground unharmed. I came to a stop and taxied toward a building. To my surprise American soldiers came running out to the plane. "What the hell are you doing? You aren't supposed to land here.", shouted an American Army Major standing in his jeep. We learned that the Americans had just occupied the airfield only 2-3 hours earlier that day.
Upon examining the plane we saw the movable rudder was completely gone and the vertical stabilizer was damaged. The right horizontal stabilizer was reduced to less than one third its size while the left and right elevators were completely gone. The tail of the fuselage was crushed including the tail turret. The tip of a ME-109 wing was embedded in the fuselage. We pulled the tip of the ME-109 out and kept it as a souvenir. [NOTE-A piece of the ME-109 wing section is on display at the Eighth Air Force Museum in Savannah, Georgia.]
Under some trees at the edge of the runway was another B-17. It was an old camouflaged plane with no markings and no chin turret, probably a B17-E or F. It was in rough shape, but no FLAK holes. The plane was pretty beat up, but after inspecting it we ran up the engines from a jeep generator then we took off and flew back to our air base in England. We flew at 3 - 4,000 feet keeping watch for airfields along the way just in case we needed to land again quickly.
We landed at our home airbase in Lavenham several hours after the group had returned. By now it was late in the day and starting to get dark. Somewhat reminiscent of our earlier landing that day an American officer came racing out to our plane, "What the hell happened to my new 17? You were supposed to be here hours ago." I told the Major that we left his new plane back in Germany and traded it for this one instead.
We were driven to the mess hall but were never officially debriefed or interrogated. Later that evening I was taken to the Squadron Commander, Capt. "Pete" Riegal, and gave him a short version of our events that day. He told me that we would not have to fly any further combat missions in this war, but he would not ground us. We had crash landed 2 times in 28 missions as well as returned 5 times on two engines."
If they made that into a movie noone would believe it!
You can see the man himself here.
http://topics.cleveland.com/tag/Budd Wentz/videos.html
Cheers
Steve