21. In World War II East Camp maintenance units were bomb targets because of the RAF activity there. 22. The squadron was then moved to Palestine to operate as a maintenance unit for USAAF B-24 Liberators. 23. The depot is completely void of trams and is now housing only the overhead wiring maintenance unit . 24. The move comes as major airlines such as British Airways Plc consider spinning off their maintenance units . 25. RAF Brize Norton was opened in 1937 as a training station, with No . 6 Maintenance Unit . 26. Its fleet was maintained by Flanker Aircraft Maintenance Unit , a section of the 757th Aircraft Maintenance Squadron. 27. The school disbanded on 1 January 1946, re-forming as Care and Maintenance Unit ( CMU ) Mallala. 28. Seabee Maintenance unit 302 provided public works assistance to the many dispersed Naval Support Activity, Saigon detachments. 29. In February 1940, The RAF established No . 43 Maintenance Unit ( MU ) at RAF Pengam Moors. 30. A typical Soviet Frontal Aviation Division consisted of three air regiments, a transport squadron, and associated maintenance units .