TM 55-1520-236-MTF. HQ Dept of the Army, 8 Dec 1987 (changes to 1990). Green plastic boards with four split rings as a binding, 4.5x8", 160pp. Actually used for maintencance test, pilot name on cover, various paste-ins and tabs added to 7 sections. About good +. (This is the first attack helicopter and one I wish I had flown)
