Installation Maintenance Manual
FMHPA 82166
4-1
Jul 2008
©
THALES AVIONICS Ltd. This document and any
information included are the property of Thales Avionics.
They cannot be reproduced, disclosed or utilized without the
company’s prior written approval
SECTION 4
40000
INSPECTION AND SYSTEM CHECKOUT
4.1. INSPECTION/CHECK PROCEDURE
The visual check procedures that follow should be performed during or after the FMHPA
installation, or as a periodic maintenance inspection check of the installation:
A. Wiring
a.
Ensure that a continuity check of all the installation wiring harness had
been carried out, and that all the sources are correctly rated on the correct
pins.
b.
Check that none of the cables have been damaged, and cannot be
damaged by components that are installed later.
c.
Clean Co-axial connections with isopropyl alcohol and torque tighten to
connector manufacturers recommendations.
d.
Verify that the various RF cables are within their minimum radius of
curvature tolerances.
e.
Check that the cable runs are spaced away from any moving or hot part
that could damage cables when in use.
B. FMHPA
a.
Examine the assembly for external condition (absences of fractures,
dents, deformations, cracks, and/or any other abnormal damage).
b.
Check that the unit is properly installed and that screws are firmly
tightened.
c.
Check screws and nuts general condition.
d.
Check that the contact resistance between the FMHPA and a point on the
aircraft structure close to the component does not exceed 20 milliohms.
e.
Check that the correct air cooling and air flow is provided to the
FMHPA.
