Received a response from Jenny at Andair saying the ORO020 is a 15 x 1.5 Viton 75 O-ring. Disassembled Andair valve and measured to confirm 15mm was the ID. Researched o-ring sources and placed an order with McMaster Carr for a one package of 9263K114 o-rings.

Looked up potential brake caliper o-rings to document in the maintenance manual. I had previously ordered caliper o-rings from Van's since the McMaster Carr o-rings did not meet the low temperature spec listed in the SB.

Completed the rudder bar install with the "0.090 thick spacer on the left and the 0.125" spacer on the right. Moved the assembly to the center position and installed with the final locknuts. Did not use lubricant on the UHMW PE block to rudder bar connection. Used one pair of AN960-10 washers on each end mounting block between the top and bottom half. Used a pair of AN960-10 and a pair of AN960-10L washers between the top and bottom half of the center block. Torqued the nuts to 20 inch pounds which included the friction drag of the new lock nuts. Started making updates in the maintenance manual.

Installed the crossover and pilot to firewall brake lines finger tight. Considered different options for securing the brake lines. Used tie wraps to temporarily secure the lines and check for freedom of movement. Sketched a few potential brackets to help secure the lines.