VERTICAL STABILIZER REMOVAL/INSTALLATION continued
On aircraft 82-23355 through 91-0121
after MWO 1-1520-238-50-41 has
been complied with and on aircraft
91-0122 and subsequent, the follow-
ing are the only authorized hardware
for installation of the vertical stabilizer:
FTC7306-8-20 Inconel bolts and
HS5813-8 Inconel barrel nuts.
When replacing one bolt/barrel nut, all
four bolts/barrel nuts must be re-
Ensure that countersunk side of wash-
er is installed against bolt head.
When installing Inconel bolts, coat bolt
threads, shank, and under the bolt
head and washer using antiseize
compound (item 26, App F).
If new barrel nuts are not available, old
barrel nuts may be reused provided
they meet the minimum breakaway
torque value of 18 INCH-POUNDS.
e. Install stabilizer (16) on tailboom (3). Torque
four bolts (21) in sequence. Ensure to identify
type of mounts installed (elastomeric or non-elas-
(1) Aline four stabilizer lugs (23) over tailboom
pads or elastomeric mounts (24).
(2) Carefully lower stabilizer (16) on tailboom (3).
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