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OSI STRUCTURE  1949 - 1992

Note: The information which follows is based on historical research in the early 1990s and does not originate from official command documents.

OSI/FEAF
Organized June 1, 1949
6001st SIU (IG)

Dist Location

1      North Guam AB, Guam
2      Clark AFB, Phillipines
3      Kadena AB, Okinawa
4      Itazuke AB, Japan
5      HQ 5th AF, Nagoya, Japan
6      Tokyo, Japan
7      Misawa AB, Japan
8      Kimpo AB, Seoul, Korea
9      Hickham AFB, HI *

*Established 1956 replacing Dist 26

NOTE: Hickam AFB originally serviced by OSI SAs on duty with Special Investigations Division, HQ MATS. Dist 26 established Aug 1, 53 and disestablished when FEAF HQ moved to Hawaii in 1956.

OSI in the Far East

OSI/PACAF
Established July 1, 1957

Dist   Location

1      Anderson AFB, Guam
2      Clark AFB, RP
3      Kadena AB, Okinawa
4      Itazuke AB, Japan
5      (Closed  May 1, 1958)
6      Tokyo, Japan
7      Misawa AB, Japan
8      Seoul, Korea
9      Hickham AFB, HI
49   Taipei AS, Taiwan*

*Established March 1, 1959

NOTE: Read panels from left to right to track changes in the district numbers.

OSI/WORLDWIDE
Established December 15, 1959

Dist   Location

41     Anderson AFB, Guam
42     Clark AB, RP
43     Kadena AB, Japan
47     (Closed Oct 1, 1961)

46     Yokota AB, Japan
48     (Closed Oct 1, 1961)
45     Seoul, South Korean
44     Hickham AFB, HI
49     Taipei AS, Taiwan
50     TanSonNhut AB, SVN
         (Mar 1, 62-Mar 27, 73)
51     Bangkok, Thailand
         (Mar 1, 65 - ?)

OSI in Alaskan Air Command and Northeast Air Command

Alaskan Air Command

Dist Nr    Location

1            Elmendorf AFB, Fairbanks, Alaska
2            Eileson AFB, Eileson, Alaska
3            The Alaska Project, Ladd AFB, Alaska*

*Disestablished mid-1957

NOTE: The identifications are very tentative and subject to revision. Dist 1 is believed to have become Dist 81 and Dist 2 to have become Dist 80.

Northeast Air Command
6620 IG Special Investigations Squadron
Organized February 1951 (?)

Dist Nr    Location

1            Pepperrell AB, Newfoundland
2            Goose Bay AB, Labrador
3            Thule AB, Greenland

NOTE: These identifications are very tentaive and subject to revision. Dist 2 is believed to have become Dist 28 and Dist 3 to have become Dist 29.

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