Tightened OAT Probe using a 9/16" crows foot. Pg 31-10 Step 4: Separated the HEADSET Harness into Pilot and Co-pilot harnesses. Step 5: Removed the F-1270B ASSYs and installed the Pilot and Co-pilot jacks into the Seat Ramp Floors. Step 6: Routed the Pilot and Co-pilot harnesses inboard through the all the Seat Ribs. Step 7: Routed the Pilot and Co-pilot harnesses, B148 and MUSIC harness forward through the F-1203A and F-1202F Bulkheads, Fuel Flo cushioned clamp, up the aft side of the firewall, over the rudder pedals and through the fwd snap bushing in th Panel Base. Step 8: Routed the Pilot and Co-pilot harnesses through the snap bushings in the Rt Instr Stack Support. Labeled the harnesses Pilot and Co-pilot. Step 9: Routed the B148 wire through the lower snap bushing in the Lt Instr Stack Support then out through the Firewall Upper. Step 10: Routed the MUSIC harness through the lower snap bushing in the Lt Instr Stack Support, through the cushioned clamp near the Lt CPU FAN. tion.