Tecnam P2002 JF - Vhf-Nav Antenna Replacement

Page 214 2
nd
Edition – Rev 0
34-20
POSITION DETERMINING – MAINTENANCE PRACTICES
10 . VHF-NAV ANTENNA REPLACEMENT
Step
no.
Task description
Additional info &
References
1.
Make sure Master Switch is set to OFF
2.
Sand along antenna cover edges to localize
rivets
3.
Remove rivets with suitable means
4.
Remove mastic with a cutter blade or suitable
means along cover edges and in correspondence
of radiators holes
5.
Remove paint from antenna cover to localize
cover rear holes (they were filled with mastic
during Tecnam manufacturing)
6.
Drill cover rear holes
7.
From cover rear holes loosen hex screw
8.
Unscrew completely radiators from antenna
9.
Unscrew and pull ring nut to remove connector
from antenna
10.
Remove antenna from cover
11.
Unscrew bolts to uninstall antenna from its
support
12.
Replace antenna if needed
13.
Install antenna on support: UNI5737- 4x25 bolt
(2x), UNI6592- 4 washer (4x), UNI7473 – 4
self-locking nut (2x).
NOTE
REPLACE ALWAYS THE SELF LOCKING NUTS WITH NEW ONES
14.
Insert antenna into cover and align cover holes
with antenna ones
Ensure that antenna threaded
holes are aligned with cover
fore holes
15.
Screw radiators
16.
Tighten hex screws from cover rear holes to lock
radiators
17.
Insert and screw ring nut to connect antenna
connector
18.
Apply a mastic layer along rivets line and cover
lower edges: use sealant Type 1
19.
Apply rivets