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TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download

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TM 9-2320-366-20-1 Change 1 2-637 (1) Position main light switch to BO MARKER (TM 9-2320-366-10-1). (2) Observe operation of rear blackout marker lights. (3) If neither rear blackout marker light illuminates, go to step 5 of this fault. (4) Position main light switch to OFF (TM 9-2320-366-10-1).