REPAIR BLADE FAIRING FOAM FILLER
Start vacuum pump. Check for leaks.
Reposition polyvinyl sheet (E284) (27) or add
tape (E396) (23) as needed.
Maintain 20 inches Hg vacuum through
Do not exceed 160ºF (71ºC) at blade
surface. Damage to fiberglass can
Cure adhesive at 140º - 160ºF (60º - 71ºC)
for 2 hours. Use heat lamp. Monitor
temperature. Use temperature indicating
Serviceable cure can be achieved
without heat at 70º - 80ºF (21º - 27ºC)
in 4 hours. Vacuum may be removed
after 12 hours.
Turn off vacuum pump.
Remove peel ply (19), fabric (20), rubber
(21), fiberglass (22), tape (23), tube (24), and
If squeeze out fairing is not satisfactory, fair
patch (15). Use adhesive (E40, E41, E43, or
E47.1). Follow step 18, 19, 20, or 21 to mix
Find weight of repair in table. Record weight for
blade tracking weight adjustment.
All blade, weight adjustment, painting,
or balancing will be recorded on
rotor blade DA Form 2408-16, each
blade requires a separate form. If
the rotor blade does not have a DA
Form 2408-16, one must be prepared
and all actions recorded, as example;
location of repair, size of repair,
weight of repair, and required weight
adjustments for track and balance.
Refinish repaired area (Task 5-82).
Adjust blade tracking weights (Task 5-82.1).
END OF TASK