Helicopter UH-1B 64-13935

Information on U.S. Army helicopter UH-1B tail number 64-13935
Date: 09/26/1966 MIA-POW file reference number: 0474
Incident number: G509ACD Accident case number: G509
Unit: 114 AHC
This was a Combat incident. This helicopter was LOSS TO INVENTORY
for Close Air Support
While in Target Area this helicopter was Attacking at 0750 feet and 070 knots.
South Vietnam
UTM grid coordinates: XR735693
Helicopter took 2 hits from:
Small Arms/Automatic Weapons; Gun launched non-explosive ballistic projectiles less than 20 mm in size. (7.62MM)
The helicopter was hit in the Armament system causing a Fire.
Systems damaged were: ARMAMENT, PERSONNEL
Casualties = 01 INJ, 03 DOI . . Number killed in accident = 3 . . Injured = 1 . . Passengers = 0
The helicopter Crashed. Aircraft is later recovered by any means other than its own power.
Both mission and flight capability were terminated.
costing 310255
Original source(s) and document(s) from which the incident was created or updated: Defense Intelligence Agency Reference Notes. Defense Intelligence Agency Helicopter Loss database. Army Aviation Safety Center database. Survivability/Vulnerability Information Analysis Center Helicopter database. Also: 0474, UH1P1, 00646, CASRP, STMNT, FM232, CRAFX (Crash Facts Message. Casualty Report. )
Loss to Inventory
Crew: MOSBURG, HENRY LEE; PHILLIPS

Crew Members:
P MAJ DUPRE NORMAN LEE KIA
P CPT MOSBURG HENRY LEE BNR
G SP4 PHILLIPS MARVIN FOSTER BNR

REFNO Synopsis:
.Capt. Henry L. Mosburg was a pilot assigned to the 114th Assault Helicopter Company. On September 26, 1966, he was assigned a combat assault mission in the Delta region of South Vietnam over Vinh Binh Province. He departed with a crew of four, including himself. On the second pass on a target near the mouth of the Son Co Chien River, Mosburg's aircraft was fired on by small arms. As the aircraft prepared for a third pass, it was noticed that one of the helicopter's rockets was on fire on the left side of the aircraft. Observers watched the tail section of the aircraft fall away, causing the helicopter to fall toward the water in a steep spin. The helicopter landed on its right side in approximately nine feet of water. One person (unnamed) was rescued, and one body was recovered. Mosburg was not found, nor was his gunner, SP4 Marvin F. Phillips. An exhaustive ocean search was made surrounding the crash area, but no trace of Phillips or Mosburg was ever found. Because of the over-water area, it was considered that the two were killed, and that it would be impossible to recover their remains. Source: Compiled by Homecoming II Project 15 June 1990 from one or more of the following: raw data from U.S. Government agency sources, correspondence with POW/MIA families, published sources, interviews

Accident Summary:

.ACFT WAS ENGAGING HOSTILE TARGET AND RECEIVING SA FIRE CE SAW ONE ROCKET 275 PROJECTING HALF WAY OUT ONE TUBE WITH FLAMES FROM THE AFT END OF THE MODULE AND LFT SIDE OF ACFT ENTIRE TAIL SECTION SEPARATED ACFT SPUN INTO THE SEA UNCONTROLLED CE ONLY SURVIVED CABIN WAS RECOVERED BUT NOT WEAPONS OR REST OF THE ACFT TWO BODIES NOT RECOVERED

This record was last updated on 05/25/1998

The following is crew member information for this incident:

Name: MAJ Norman Lee Dupre
Status: Killed In Action from an incident on 09/26/1966 while performing the duty of Pilot.
Age at death: 36.7
Date of Birth: 01/16/1930
Home City: Orange, TX
Service: AR branch of the reserve component of the U.S. Army.
Unit: 114 AHC
Major organization: other
Service: AR branch of the U.S. Army.
The Wall location: 11E-019
Short Summary: Hostile action during the conduct of a mission.
Aircraft: UH-1B tail number 64-13935
Service number: O4009689
Country: South Vietnam
MOS: 1981 = 19 Rotary Wing Aviator (Unit Commander)
Major attributing cause: aircraft connected not at sea
Compliment cause: drowning
Vehicle involved: helicopter
Position in vehicle: aircraft commander
Started Tour: 06/05/1966
"Official" listing: helicopter air casualty - pilot
Length of service: 20
Location: Offshore, Unknown Province
Reason: aircraft lost or crashed at sea
Casualty type: Hostile - died while missing
married male U.S. citizen
Race: Caucasian
Relgion: Methodist (Evangelical United Brethren)
The following information is secondary, but may help in explaining this incident.
Category of casualty as defined by the Army: battle dead Category of personnel: active duty Army Military class: officer
This record was last updated on 05/31/1990

Name: CPT Henry Lee Mosburg
Status: Body Not Recovered from an incident on 09/26/1966 while performing the duty of Pilot.
Age at death: 30.8
Date of Birth: 12/03/1935
Home City: Putnam, OK
Service: IN branch of the regular component of the U.S. Army.
Unit: 114 AHC
Major organization: other
Service: IN branch of the U.S. Army.
The Wall location: 11E-020
Aircraft: UH-1B tail number 64-13935
Service number: OF102571
Country: South Vietnam
MOS: 2981
Primary cause: SVN-BNR-OW
Major attributing cause: aircraft connected not at sea
Compliment cause: drowning
Vehicle involved: helicopter
Position in vehicle: pilot
"Official" listing: helicopter air casualty - pilot
Length of service: 06
Location: Unknown Province
Reason: aircraft lost or crashed
Casualty type: Hostile - died while missing
married male U.S. citizen
Race: Caucasian
Relgion: Methodist (Evangelical United Brethren)
The following information is secondary, but may help in explaining this incident.
Category of casualty as defined by the Army: battle dead Category of personnel: active duty Army Military class: officer
This record was last updated on 02/16/1994

Name: SP4 Marvin Foster Phillips
Status: Body Not Recovered from an incident on 09/26/1966 while performing the duty of Gunner.
Age at death: 20.2
Date of Birth: 06/30/1946
Home City: Gruetli, TN
Service: regular component of the U.S. Army.
Unit: 114 AHC
Major organization: other
Service: U.S. Army.
The Wall location: 11E-020
Aircraft: UH-1B tail number 64-13935
Service number: 14856631
Country: South Vietnam
MOS: 11B40 = Infantryman
Primary cause: SVN-BNR-OW
Major attributing cause: aircraft connected not at sea
Compliment cause: drowning
Vehicle involved: helicopter
Position in vehicle: door gunner
"Official" listing: helicopter air casualty - other aircrew
Length of service: 02
Location: Unknown Province
Reason: aircraft lost or crashed
Casualty type: Hostile - died while missing
single male U.S. citizen
Race: Caucasian
Relgion: Church of Christ
The following information is secondary, but may help in explaining this incident.
Category of casualty as defined by the Army: battle dead Category of personnel: active duty Army Military class: enlisted personnel
This record was last updated on 06/25/1994

The following is Goldbook information on US Army helicopter UH-1B tail number 64-13935
It is provided here as an ESTIMATE of the history of this helicopter and is not intended to be the final authority.
This helicopter was purchased by the US Army in 0165.
Please provide any additional information on this helicopter to the VHPA.

DATE  FLT HRS    UIC      UNIT          AREA          POST          COUNTRY
6610   0 1423 WAX7AA 114 AVN CO AML   VIETNAM                     RVN

Return to Main Index

Please send additions or corrections to:
Gary Roush, Webmaster VHPA
43 Overbrook Road
Painted Post, NY 14870