Collins 344A-1 Instrumentation Unit Overhaul Manual (520-5732003-101) by Collins Sale $47.00 | / SKU 1104:R Printed Manual - $47.00 Download - $47.00 Printed Manual Download Size 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 2nd Edition, May 1959 1st Revision, June 1962