Narrative:

After WX brief at akron, co, XX30 am local time, which stated tops over cheyenne at 8000, and our destination was reporting 5000 and broken, unlimited visibility. We took off on a heading of 300 degrees, we leveled at 10500 ft. I could see cheyenne below through broken clouds. My friend in the small aircraft Y was about 1/2 mi to my left. He called and told me we would have to climb to 12500 to get over these clouds. I was in visual contact with his small aircraft. It was on my left, higher and ahead of me. I remember my altimeter passing 11300 ft when, suddenly, the aircraft dropped. The vertical speed indicator went to 2000 ft down. I pulled back gently on the control column and the vertical speed indicator went to 2000 ft climb. The stall warning horn sounded. I looked at my airspeed and it was indicating 140 mph. At this point, I called my friend in the small aircraft Y and told him I was in a cloud and the airplane was not responding properly. He told me to slowly climb and I would climb out of it. I was in a white cloud and the vertical speed indicator had hit the stops 3 times. My dg was spinning, my compass was reading 90 degrees. I was still dropping and experiencing very heavy 'G' forces. While passing 9000 ft, I saw clear sky below. I leveled at 8500 ft, was below the clouds and under control, but I was now heading 180 degrees. I made a slow right hand turn and picked up my 300 degree heading, knees shaking so badly I could hardly keep my feet on the rudder pedals. I remember feeling back in control. I called my friend in the small aircraft several times, but he never answered. I remember thinking he was probably too far ahead of me for his radio to reach me, so I continued on my course to riverton, wy, where I thought my friends in the small aircraft would be waiting and joking about my landing with my knees shaking. I arrived and found that his aircraft was not there. About 2 hours later, I heard that it had crashed about 15 mi northwest of cheyenne.

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Original NASA ASRS Text

Title: SMA PLT'S STORY OF 2 PLANES IN LOOSE FORMATION FLT ENCOUNTERING CLOUDS AND TURB. LOSS OF ACFT CTL.

Narrative: AFTER WX BRIEF AT AKRON, CO, XX30 AM LCL TIME, WHICH STATED TOPS OVER CHEYENNE AT 8000, AND OUR DEST WAS RPTING 5000 AND BROKEN, UNLIMITED VISIBILITY. WE TOOK OFF ON A HDG OF 300 DEGS, WE LEVELED AT 10500 FT. I COULD SEE CHEYENNE BELOW THROUGH BROKEN CLOUDS. MY FRIEND IN THE SMA Y WAS ABOUT 1/2 MI TO MY L. HE CALLED AND TOLD ME WE WOULD HAVE TO CLB TO 12500 TO GET OVER THESE CLOUDS. I WAS IN VISUAL CONTACT WITH HIS SMA. IT WAS ON MY L, HIGHER AND AHEAD OF ME. I REMEMBER MY ALTIMETER PASSING 11300 FT WHEN, SUDDENLY, THE ACFT DROPPED. THE VERT SPD INDICATOR WENT TO 2000 FT DOWN. I PULLED BACK GENTLY ON THE CTL COLUMN AND THE VERT SPD INDICATOR WENT TO 2000 FT CLB. THE STALL WARNING HORN SOUNDED. I LOOKED AT MY AIRSPD AND IT WAS INDICATING 140 MPH. AT THIS POINT, I CALLED MY FRIEND IN THE SMA Y AND TOLD HIM I WAS IN A CLOUD AND THE AIRPLANE WAS NOT RESPONDING PROPERLY. HE TOLD ME TO SLOWLY CLB AND I WOULD CLB OUT OF IT. I WAS IN A WHITE CLOUD AND THE VERT SPD INDICATOR HAD HIT THE STOPS 3 TIMES. MY DG WAS SPINNING, MY COMPASS WAS READING 90 DEGS. I WAS STILL DROPPING AND EXPERIENCING VERY HVY 'G' FORCES. WHILE PASSING 9000 FT, I SAW CLR SKY BELOW. I LEVELED AT 8500 FT, WAS BELOW THE CLOUDS AND UNDER CTL, BUT I WAS NOW HDG 180 DEGS. I MADE A SLOW R HAND TURN AND PICKED UP MY 300 DEG HDG, KNEES SHAKING SO BADLY I COULD HARDLY KEEP MY FEET ON THE RUDDER PEDALS. I REMEMBER FEELING BACK IN CTL. I CALLED MY FRIEND IN THE SMA SEVERAL TIMES, BUT HE NEVER ANSWERED. I REMEMBER THINKING HE WAS PROBABLY TOO FAR AHEAD OF ME FOR HIS RADIO TO REACH ME, SO I CONTINUED ON MY COURSE TO RIVERTON, WY, WHERE I THOUGHT MY FRIENDS IN THE SMA WOULD BE WAITING AND JOKING ABOUT MY LNDG WITH MY KNEES SHAKING. I ARRIVED AND FOUND THAT HIS ACFT WAS NOT THERE. ABOUT 2 HRS LATER, I HEARD THAT IT HAD CRASHED ABOUT 15 MI NW OF CHEYENNE.

Data retrieved from NASA's ASRS site as of July 2007 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.