Name: John Robert Henn, Jr.
Rank/Branch: W2/US Army
Unit: F Battery, 79th Artillery, 3rd Brigade, 1st Cavalry Division
Date of Birth: 11 February 1948 (Worchester MA)
Home City of Record: Sutton MA
Date of Loss: 24 May 1972
Country of Loss: South Vietnam
Loss Coordinates: 113345N 1063717E (XT768786)
Status (in 1973): Missing in Action
Category: 3
Aircraft/Vehicle/Ground: AH1G
Refno: 1865
Other Personnel in Incident: (none missing)

Source: Compiled from one or more of the following: raw data from U.S.
Government agency sources, correspondence with POW/MIA families,
published sources, interviews. Updated by the P.O.W. NETWORK in 2020.


SYNOPSIS: On May 24, 1972, WO2 Isaac Y. Hosaka, pilot, and WO2 John R. Henn,
aircraft commander, were flying an AH1G Cobra helicopter (tail #67-15836)
which was participating in a medivac operation about 8 kilometers south of
An Loc, South Vietnam. WO2 Henn's helicopter was in a flight of three Cobras
at 4800 feet when the helicopter appeared to break in half.

The aircraft then went into a flat spin, exploded and burst into flames upon
impact. The other helicopter pilots concluded that the Cobra had been hit by
a SAM (surface to air missile), as they had seen a trail of white smoke from
the ground to the aircraft.

The other two Cobras remained over the site, but observed no one leaving the
crash. An immediate search in the area was not possible because of the enemy
situation, but on June 2 and June 5, brief surface searches were conducted
and remains were found which were identified as those of WO2 Hosaka.

A refugee reported that he had witnessed a Cobra helicopter crash and burn
near Tan Khai village. Fifteen days later, he saw the bodies of two
individuals who had apparently died in the crash. The U.S. Army believes
this report may correlate ot Henn and Hosaka.

There was at least some chance that Henn survived the crash of the
helicopter to be captured, as the U.S. Army classified him Missing in
Action rather than Killed/Body Not Recovered. Whether reports have come in
concerning Henn is not information which is included in public record.

As the years have passed since the war ended, nearly 10,000 reports relating
to Americans missing in Southeast Asia have been received by the U.S. Many
authorities are convinced that Americans are still alive in captivity in
Southeast Asia, and that they number in the hundreds. Whether Henn is among
them is unknown, but certainly there can be no other honorable end to the
Vietnam war than to bring our men home.





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On May 24, 1972, an AH-1G Cobra (tail number 67-15836, call sign "Blue Max 33") carrying two crew members took off on a medical evacuation operation with a destination south of An Loc, South Vietnam. The aircraft was in a flight of three Cobras when it was hit by anti-aircraft fire and appeared to break in half. It then crashed and burst into flames in the vicinity of grid coordinates XT 768 786. Pilots of the other aircraft flying the mission concluded this Cobra was hit by a surface-to-air missile. The other two aircraft checked the crash site but saw no survivors. An immediate ground search of the crash site was precluded by the enemy presence in the area. In early June of the same year, a search was conducted that recovered the remains of the pilot; however, search efforts failed to locate the other crew member.

Chief Warrant Officer 2 John Robert Henn Jr. entered the U.S. Army from Massachusetts and was a member of Battery F, 79th Artillery Battalion, 3rd Brigade Combat Team, 1st Cavalry Division. He was the aircraft commander of this helicopter when it crashed. His remains were not recovered. Today, Chief Warrant Officer 2 Henn is memorialized on the Courts of the Missing at the National Memorial Cemetery of the Pacific.

Based on all information available, DPAA assessed the individual's case to be in the analytical category of Deferred.

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