| On 2 December 1969, W2 Martin
D. Vanden Eykel, aircraft commander; then W2 William C. "Bill"
Dunlap, pilot; SP5 William D. Sanderlin, crew chief; and SP5
Michael H. Shanley, Jr., door gunner; comprised the crew of the
#2 UH1B Huey gunship (serial #64-13959) in a flight of two
conducting a night ground support mission for a long range
reconnaissance patrol (LRRP) that was engaged in combat with
enemy forces and had radioed for assistance. The ground patrol
was operating in the southern portion of a heavily forested
mountain range in Bong Son District, Binh Dinh Province, South
Vietnam.
Because this region was heavily
infested with well-armed and entrenched Viet Cong (VC) forces, it
was considered to be extremely dangerous. Further, a remarkably
large number of aircraft had been downed in this sector earning
it the nickname, "the graveyard of helicopters." The two gunships
were accompanied by a third that was equipped with flares to
illuminate the target area.
The flight departed Landing
Zone (LZ) English and arrived on the target area at 2230 hours.
Immediately the flight leader attempted to establish radio
contact with the members of the LRRP, but was unsuccessful in
doing so. About the same time, the third Huey began dropping
flares to illuminate the terrain while the two gunships flew low
over the jungle covered mountains searching for signs of the
ground team as well as for enemy targets. Almost immediately W2
Vanden Eykel radioed Lead that he was experiencing vertigo and
the pilot of the flare ship radioed both gunships that they had
to change course to avoid flying into the side of a
mountain.
Under the untenable conditions
caused by the flares and terrain features, the flight leader made
the decision to abort the mission if contact with the ground team
could not be established. The two gunships made one more pass
over the area in an attempt to spot the ground team. At this time
the pilot of the lead Huey also experienced vertigo and radioed
the other aircrews that he nearly crashed because of it. Lead
directed his wingman and the flare ship to make a 180-degree turn
and depart the area. W2 Vanden Eykel acknowledged the command
with an affirmative response. This acknowledgement was also the
last transmission received from the #2 aircraft.
When the Huey failed to return
to base, a radio check was made with all the other airfields and
LZs in the region in case they were forced to divert to one of
them. At first light the next morning a full-scale search and
rescue (SAR) operation began. The area in which the gunship
disappeared was heavily forested with hamlets and villages of
varying sizes scattered along the grassy foothills located just
to the south of the target area. A river flowed through the
mountains half a mile to the west and it continued through large
rice fields located south, east and west of the mountains. The
loss location was also approximately 14 miles southwest of Hoa
Nhon, 21 miles west of the coastline, 43 miles northwest of Qui
Nhan and 54 miles east-southeast of Kontum, South
Vietnam.
Throughout the numerous ground
and air searches that were conducted over the next few days, no
emergency beeper signals were heard and no wreckage was found. At
the time the formal SAR was terminated, Martin Vanden Eykel, Bill
Dunlap, William Sanderlin and Michael Shanley were reported as
Missing in Action.
Following the loss of the
helicopter and crew, a Board of Inquiry was held to review all
known facts surround the loss of the gunship and determine the
status of its aircrew. A local Vietnamese woman appeared at the
hearing and reported that she saw the helicopter go down and the
crew captured by the Viet Cong.
In July 1973, Vietnamese wood
cutters who were working in the mountains reported finding the
wreckage of a helicopter in that vicinity. Immediately an
investigation was conducted. The results disclosed that the
aircraft was not a helicopter, but a fixed wing airplane not
related to this case.
In December 1974, another local
Vietnamese reported finding aircraft wreckage in the same general
area. Another field investigation was conducted, but the wreckage
was that of a South Vietnamese helicopter, not the American Huey
gunship.
On 23 January 1989, the
Socialist Republic of Vietnam repatriated 25 sets of remains to
the US control. Four of those sets of remains were identified on
20 April 1990 as being the crew of this aircraft. Of these four,
Bill Dunlap and William Sanderlin were positively identified
through dental comparison. Michael Shanley and Martin Vanden
Eykel were never conclusively identified. The families of each
crewman aboard the UH1B accepted the remains.
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