On April 30, 1967, on their 93rd mission (seven shy of completing their tours), Thorsness and Johnson were shot down by a Mikoyan-Gurevich MiG-21 over North Vietnam while flying aircraft F-105F, AF Ser.
No.
62-4447.
He had flown the morning mission to the Hanoi area as Wild Weasel leader, then assigned himself as a spare aircraft for the afternoon mission because of a shortage of crews.
One of Carbine flight aborted with radio problems, and Thorsness filled in as Carbine 03, leading the second element.

While still inbound over northwest North Vietnam, communications were disrupted when an ejection seat emergency beeper went off aboard one of the F-105s.
Despite being observed by early warning radar locations, two MiG-21s approached Carbine flight from behind and unseen.
Just as Thorsness got an instrument indication that the flight was being painted by airborne radar, he saw an F-105 going down in flames that eventually was identified as his own wingman, Carbine 04 (1st Lt Robert Abbott, in F-105D, AF Ser.
No.
59-1726), shot down by an Atoll missile.
Within a minute, his own aircraft was also hit with a heat-seeking missile fired by the MiGs.

Thorsness and Johnson ejected.
Separated from each other by a ridge, they were the object of a three-hour rescue effort involving the entire strike force as a covering force.
Two F-105D aircraft were directed by Crown to provide RESCAP (as Tomahawk flight) until the combat search and rescue (CSAR) forces could arrive on station.
Both aircraft were hit by Atoll missiles from MiG 21s, with F-105D, AF Ser.
No.
61-0130, piloted by Capt Joe Abbott being shot down, and wingman Maj Al Lenski limping back to Thailand.
In addition, one of the A-1 "Sandy" aircraft was hit while one of the rescue Jolly Greens developed hydraulic problems and had to abort, thus ending the CSAR mission.
Poor communications, heavy MiG engagements and standard operating procedures which did not allow only one CSAR helicopter to remain on station, made the effort futile and all the men were captured.
CSAR forces were again launched the next day but none of the downed airmen were located.
The mission is described in great detail, including verbatim transcripts of radio transmissions, in both Thud Ridge and Thud, written by Col Jack Broughton, member of Waco flight and another of the RESCAP crews involved in the incident.

His uncooperativeness towards his captors earned him a year in solitary confinement and severe back injuries due to torture.
The Medal of Honor was awarded to Thorsness during his captivity, but not announced until his release in 1973 to prevent the Vietnamese from using it against Thorsness, as was the Air Force Cross awarded to Capt Johnson for the same mission.
Capt.
Abbott was released from captivity on February 18, 1973, while Thorsness, Johnson, and 1st Lt Abbott were released on March 4, 1973, during Operation Homecoming.

Injuries incurred during the ejection and aggravated by the torture Thorsness was subjected to disqualified him medically from further flying in the Air Force and he retired on October 25, 1973 at the rank of Colonel.

Col.
Thorsness was a command pilot in the United States Air Force with 5,000 flying hours in L-21, T-6 Texan, T-28 Trojan, T-33 Shooting Star, F-84B and D Thunderjet, F-84F Thunderstreak, F-100C and D Super Sabre, and F-105B, D, and F Thunderchief aircraft.
On April 30, 1967, on their 93rd mission (seven shy of completing their tours), Thorsness and Johnson were shot down by a Mikoyan-Gurevich MiG-21 over North Vietnam while flying aircraft F-105F, AF Ser. No. 62-4447. He had flown the morning mission to the Hanoi area as Wild Weasel leader, then assigned himself as a spare aircraft for the afternoon mission because of a shortage of crews. One of Carbine flight aborted with radio problems, and Thorsness filled in as Carbine 03, leading the second element.
While still inbound over northwest North Vietnam, communications were disrupted when an ejection seat emergency beeper went off aboard one of the F-105s. Despite being observed by early warning radar locations, two MiG-21s approached Carbine flight from behind and unseen. Just as Thorsness got an instrument indication that the flight was being painted by airborne radar, he saw an F-105 going down in flames that eventually was identified as his own wingman, Carbine 04 (1st Lt Robert Abbott, in F-105D, AF Ser. No. 59-1726), shot down by an Atoll missile. Within a minute, his own aircraft was also hit with a heat-seeking missile fired by the MiGs.
Thorsness and Johnson ejected. Separated from each other by a ridge, they were the object of a three-hour rescue effort involving the entire strike force as a covering force. Two F-105D aircraft were directed by Crown to provide RESCAP (as Tomahawk flight) until the combat search and rescue (CSAR) forces could arrive on station. Both aircraft were hit by Atoll missiles from MiG 21s, with F-105D, AF Ser. No. 61-0130, piloted by Capt Joe Abbott being shot down, and wingman Maj Al Lenski limping back to Thailand. In addition, one of the A-1 "Sandy" aircraft was hit while one of the rescue Jolly Greens developed hydraulic problems and had to abort, thus ending the CSAR mission. Poor communications, heavy MiG engagements and standard operating procedures which did not allow only one CSAR helicopter to remain on station, made the effort futile and all the men were captured. CSAR forces were again launched the next day but none of the downed airmen were located. The mission is described in great detail, including verbatim transcripts of radio transmissions, in both Thud Ridge and Thud, written by Col Jack Broughton, member of Waco flight and another of the RESCAP crews involved in the incident.
His uncooperativeness towards his captors earned him a year in solitary confinement and severe back injuries due to torture. The Medal of Honor was awarded to Thorsness during his captivity, but not announced until his release in 1973 to prevent the Vietnamese from using it against Thorsness, as was the Air Force Cross awarded to Capt Johnson for the same mission. Capt. Abbott was released from captivity on February 18, 1973, while Thorsness, Johnson, and 1st Lt Abbott were released on March 4, 1973, during Operation Homecoming.
Injuries incurred during the ejection and aggravated by the torture Thorsness was subjected to disqualified him medically from further flying in the Air Force and he retired on October 25, 1973 at the rank of Colonel.
Col. Thorsness was a command pilot in the United States Air Force with 5,000 flying hours in L-21, T-6 Texan, T-28 Trojan, T-33 Shooting Star, F-84B and D Thunderjet, F-84F Thunderstreak, F-100C and D Super Sabre, and F-105B, D, and F Thunderchief aircraft.
Leo K. Thorsness