Quick view Add to Cart Modification of Propeller Counterweights Document Part Number: No. 5 Mandatory Number of pages: 7Part Number: No. 5 MandatoryRevision Date: 3-Jan-1949Description: Also Including: Propeller Adjustment, Rework of 4 1/8 inch Counterweights, Inspection of Engine MSRP: Was: Now: $15.00