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Bobs Ten
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Date:  10-7-2019
Number of Hours:  7.50
Manual Reference:  
Brief Description:  Install Instrument Panel

1130 - 1900

Today we continued work on the instrument panel install.

Installed the previously fabricated transponder rack, without the tray installed. This will allow routing of the wiring to the tray before final installation. The GEA24 was attached to the bottom of this rack using prveviously fabricated mounts. All connections wer made to the GEA24 except the CAN bus connector.

The VPX support rails were secured using AN hardware.

During this session, the CF panel and center insert was installed and removed several times to verify locations.

Installed ECU rack. Originally, the GDL51R was to be mounted on this rack. This was not to be, unfortunately. The GDL51R has orientation requirements. These requirements predicate mounting the unit facing forward with the connectors facing aft. As the unit + connectors is roughly 9 inches, mounting it between the instrument panel and sub panel is problematic...the distance between the two panels is only 9.5 inches. The GDU then requires about 2", so there is not sufficient clearance to maintain orientation and account for the connectors. Several calls to Steinair and after some head scratching, we found an adequate location. The GDL51R was finally mounted to the top of the GTR20 radio using 3M extreme fastener. This is a product similar to velcro, however, approximately 3 times stronger with rigid plastic grips. In order to apply this product, we removed the radio. The velcro was applied, radio reinstalled, and the GDL51R attached. I am confident that the unit is secure, in fact, removing it may be difficult.

Next, we determined the location for the VPX-Pro. Again, clearances were an issue. This time, the problem was with the GMC507 connector, as it exited the unit right where the main power post is on the VPX. After more head scratching, we found a solution by shifting the VPX more towards the right side of the aircraft. This facilitated clearance on the power post. Two VPX mounts were fabricated from 063 x .75 angle using standard tec
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