Honeywell International Inc. 9PGTPA-100A Manuale Utente
Page 2031
1 Dec 2003
34-45-4
7
MAINTENANCE MANUAL
CAS-100 COLLISION AVOIDANCE SYSTEM
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(3) Directional Antenna Adapter Installation for 8-hole, Flat Base Antenna
This procedure outlines the installation of the Adapter Plate (Part No. 047-50357-0001
through -004) to the skin of the aircraft. The gap between the adapter plate and the skin
determines whether Procedure A or B is required for the installation of the adapter plate.
through -004) to the skin of the aircraft. The gap between the adapter plate and the skin
determines whether Procedure A or B is required for the installation of the adapter plate.
(a) General Information
The ANT-81A Adapter is available in four different versions to accomodate a broad
range of aircraft skin curvatures. The following list describes the range of radial
curvatures that each adapter plate will fit:
range of aircraft skin curvatures. The following list describes the range of radial
curvatures that each adapter plate will fit:
The installation prodedure requires the use of the adapter plate as the fixture to
locate the pilot holes on the proposed centerline for the antenna location.
locate the pilot holes on the proposed centerline for the antenna location.
The adapter plate is mounted in place on the skin with cleco fasteners so a
determination can be made as to which installation procedure, A or B, will be
required.
determination can be made as to which installation procedure, A or B, will be
required.
If the edge gap between the adapter plate and the aircraft skin can be closed without
stressing the aircraft skin or distorting the flat section of the adapter plate in excess
of ± 0.010 inches follow Procedure A. If the installer is unable to comply with the
above criteria, measure the outboard centerline gap for use in Procedure B.
stressing the aircraft skin or distorting the flat section of the adapter plate in excess
of ± 0.010 inches follow Procedure A. If the installer is unable to comply with the
above criteria, measure the outboard centerline gap for use in Procedure B.
(b) Installation Procedure A
• Attach the adapter plate and complete the drilling and cleco attachment. If
corrosion or damage is detected on the mounting surface, mask off area adjacent
to adapter plate and strip paint from skin on suspect area. Treat corrosion and/or
damage in accordance with approved practices regarding pressurized
structures. Upon approval of skin preparation, attach the adapter plate and
complete the drilling and riveting attachment.
to adapter plate and strip paint from skin on suspect area. Treat corrosion and/or
damage in accordance with approved practices regarding pressurized
structures. Upon approval of skin preparation, attach the adapter plate and
complete the drilling and riveting attachment.
• Drill and cleco for final rivet diameter from the centerline outboard.
• Drill the attachment holes for the four nut plates.
• With a 1.125 inch transfer punch, locate the centers for the four connectors and
cut out the connector clearance (F holes).
• Remove adapter plate to countersink and de-burr all holes. Clean and brush
alodine on all exposed metal surfaces of adapter plate.
Detail Part No.
Skin Curvature (Radial)
047-50357-0001
29 to 35 inches
-0002
36 to 45 inches
-0003
46 to 65 inches
-0004
66 to 95 inches