| The Incident
On 9 June 1970, Air Force 1st
Lt. John L. Ryder, pilot; and Special Forces Operations Officer
Capt. Barry W. Hilbrich, observer; comprised the crew of an O1F
(aircraft #57-2890), call sign "Mike 81." They departed Pleiku
Airfield to conduct a visual reconnaissance mission to locate and
identify an enemy ammo cache. The area of operation was south of
Ben Het with a final destination of Dak Seang Special Forces
Camp.
At 1255 hours, as Mike 81 flew
low over the rugged mountains of the central highlands, 1st Lt.
Ryder made his first standard radio check with Herb 50, the
tactical air control center at Pleiku. At that time he reported
they had not seen any enemy activity in the area and they had not
yet located the ammo cache. Further, he did not report having any
difficulty with their aircraft.
Mike 81 was scheduled to make
another radio check at 1327 hours, but failed to do so. Herb 50
attempted to reach the Bird Dog, and when the ground controller
was unsuccessful in establishing contact, he called all the
airfields in the region where the aircrew might have diverted to
in an emergency. After learning no one knew the whereabouts of
Mike 81, the aircraft was declared missing.
The last known location of Mike
81 was approximately 1 mile northwest of a primary road, 4 miles
southwest of Dak Seang, 10 miles west-southwest of Dak To and 50
miles north-northwest of Pleiku, Kontum Province, South Vietnam.
It was also 7 miles southeast of the tri-border area where South
Vietnam, Laos and Cambodia meet. In this area the rugged
mountains and surrounding valley are covered with heavy
undergrowth. Weather conditions included 5,000-foot high
scattered clouds and variable broken clouds. There was visibility
of 15 miles and winds were from the west-southwest at 10
knots.
No visual search and rescue
(SAR) operation was conducted on 9 June due to severe
thunderstorms in the area. SAR operations were initiated at first
light the next morning, but were hampered by poor weather
conditions. An electronic search was also initiated at the same
time. These efforts continued under deteriorating weather
conditions until 19 June when they were terminated.
During these operations 46
sorties were flown with a total of 143 flying hours logged over
an area extending from Pleiku north to the I Corps boundary and
west of the Cambodian border. At no time did any of the personnel
involved hear any emergency beepers or see any trace of the
missing aircraft and its crew. At the time the formal search was
terminated, John Ryder and Barry Hilbrich were listed Missing in
Action.
|