Constituted 440th Bombardment Squadron (Medium) on 19 June 1942
Activated on 26 June 1942
Re-designated 440th Bombardment Squadron (Light) on 3 February 1945
Inactivated on 4 January 1946
Re-designated 117th Bombardment Squadron (Light), and allotted to Pennsylvania ANG, on 24 May 1946
Extended federal recognition on 17 January 1947
Ordered to active service on 1 April 1951
Inactivated 1 November 1952
Relieved from active duty and returned to Pennsylvania commonwealth control.
1 January 1953
Re-designated: 117th Fighter-Bomber Squadron, and re-activated on 1 January 1953
Inactivated on 1 July 1956
Allocation to Pennsylvania ANG withdrawn, 1 February 1957
Allotted to Kansas ANG, 1 February 1957
Re-designated 117th Fighter-Interceptor Squadron, 1 February 1957
Extended federal recognition and activated on 23 February 1957
Re-designated: 117th Tactical Reconnaissance Squadron on 10 April 1958
Re-designated: 117th Tactical Bombardment Squadron on 12 June 1972
Re-designated: 117th Defense Systems Evaluation Squadron on 6 April 1974
Re-designated: 117th Air Refueling Squadron on 1 April 1978
Constituted 440th Bombardment Squadron (Medium) on 19 June 1942
Activated on 26 June 1942
Re-designated 440th Bombardment Squadron (Light) on 3 February 1945
Inactivated on 4 January 1946
Re-designated 117th Bombardment Squadron (Light), and allotted to Pennsylvania ANG, on 24 May 1946
Extended federal recognition on 17 January 1947
Ordered to active service on 1 April 1951
Inactivated 1 November 1952
Relieved from active duty and returned to Pennsylvania commonwealth control. 1 January 1953
Re-designated: 117th Fighter-Bomber Squadron, and re-activated on 1 January 1953
Inactivated on 1 July 1956
Allocation to Pennsylvania ANG withdrawn, 1 February 1957
Allotted to Kansas ANG, 1 February 1957
Re-designated 117th Fighter-Interceptor Squadron, 1 February 1957
Extended federal recognition and activated on 23 February 1957
Re-designated: 117th Tactical Reconnaissance Squadron on 10 April 1958
Re-designated: 117th Tactical Bombardment Squadron on 12 June 1972
Re-designated: 117th Defense Systems Evaluation Squadron on 6 April 1974
Re-designated: 117th Air Refueling Squadron on 1 April 1978
117th Air Refueling Squadron