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Zenith CruZer & Sonex Logs
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Date:  6-24-2019
Number of Hours:  2.30
Manual Reference:  C75-N-7
Brief Description:  Secure comm cables & initial fit motor mount

Tedius work.

Spent a lot of time on my back and in the lower fuselage inspection opening, and under the top skin of the upper fuselage.

Secured the ELT and trim servo wiring in the longeron channel with dabs of silicone RTV caulk. Not difficult, but difficult when you're trying to stay under a floppy upper fuselage skin and not pull the cables out of the longeron channel.

Since the comm antenna is mounted immediately behind the baggage compartment wall, This was a bit easier since things were relatively reachable via the inspection opening. Ran zip tie adhesive muonting pads up the side wall of the fuselage and over to the antenna. Where the cable ran in the longeron channel, I secured it with dabs of silicone RTV caulk.

Next I did an initial fitment of the motor mount. Placing it on the firewall, it was evident all 4 mounting tabs had to be trimmed a bit to fit in the curve of the firewall. Measured, marked, and cut all 4 corners using a cutoff wheel. Clamped the firewall in place as shown in pic 2 below. Checked builder guides, videos, and plans, but there are no measurements for exactly where the mount should fit, so I'll check with Zenith tomorrow.
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