*TM 10-8470-204-10 TECHNICAL MANUAL ... - Operation …
DEPARTMENT OF THE ARMY WASHINGTON, D.C., 14 MARCH 2008 TECHNICAL MANUAL OPERATOR'S MANUAL FOR ADVANCED COMBAT HELMET (ACH) * TM 10-8470-204-10, dated 14 March 2008, superseded TM 10-8470-204-10 dated 30 September 2005, including all changes. ... Helmet Too High (Too Much Forehead and Ear Canal Exposed).....0007-4 Figure 4. Helmet Too High
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