Click to expand Tap to zoom Hughes Helicopters OH-6A 1969 Organizational Maintenance Manual (55-1520-214-20) by Hughes Helicopter Manuals Sale $79.00 | / SKU 8055:R Printed Manual - $79.00 Download - $79.00 Printed Manual Download Size 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Helicopter, Observation