Today the airbase has multiple roles, but primarily that of a staging base for workers on the offshore oil and gas fields in the Timor Sea.

Workers are flown into the base by fixed wing aircraft and then transferred to helicopters at Mungalalu Truscott for the final flight leg to offshore facilities in and around the Timor Sea.

Other regular users of the base include the Australian Border Force who use the airbase as a staging post for their aerial surveillance patrols in the area.

RAAF, Royal Netherlands East Indies Army Air Force (ML-KNIL) and United States Army Air Forces (USAAF) heavy and medium bombers would stage through Truscott, often rearming and refuelling several times on bombing missions into Japanese held areas before returning to their home bases around Western Australia and the Northern Territory.

Catalina flying boats operated from West Bay and Spitfire aircraft were the most common fighter rotated through the base for local air defence.

On 18 January 1944, two RAAF personnel, Sergeants Castle and Martin, part of a unit making preparations for construction of the airfield heard a vessel which they suspected was a Japanese submarine or boat.

Research done after the war has confirmed that Lieutenant Susuhiko Mizuno led a special Japanese Army reconnaissance party from Kupang, in Timor on board the Hiyoshi Maru.

[3] On 20 July 1944, a Japanese Mitsubishi Ki-46-II "Dinah" Aircraft, piloted by Lt. Kiyoshi Izuka with his observer Lt. Hisao Itoh was shot down over the Anjo Peninsula by a flight of No.

[4][5] At the end of the war the base was closed down, with it playing a small role as a transit camp for the repatriation of Dutch citizens from the former Netherlands East Indies in 1946.

[6] On 20 May 1945, Liberator A72-160 (a B-24M-10-CO model), on a mission to Balikpapan and piloted by Flight Lieutenant F. L. Sismey, crashed soon after takeoff, near the north west end of the runway.

This aircraft made an emergency landing on 26 February 1942, after the pilot got lost while flying from Perth to Broome, and put it down on a salt pan on Anjo Peninsula.

Mungalalu Truscott Base has been classified and entered into the Council of the National Trust of Western Australia list of Heritage Places due to its significance during World War II and the remaining artefacts.

The Trust has communicated that the classification has "no legal significance and does not infringe any rights of ownership" leaving administration to the joint understanding of the operator (MT Airbase) and the WGAC.