REPLACE BLADE FAIRING TIP SECTION
Start vacuum pump. Check for leaks.
Reposition bag (22) or add tape (E396) (19)
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
strips (E413). Vacuum may be removed after
Serviceable cure can be achieved
without heat at 70º - 80ºF (21º - 27ºC)
in 24 hours.
Turnoff vacuum pump.
Remove bag (22), tube (14), tape (19),
fiberglass (18), rubber (17), fabric (16), and
peel ply (15).
If squeezeout fairing (23) is not satisfactory, fair
doubler (4) and mesh (5) to surface of blade (1)
with adhesive (E40 or E41). Prepare adhesive
mixture as in steps 9 and 10.
Refinish tip seal area (24) (Task 5-76 or 5-77).
Add recorded weights of doublers (4), mesh (5)
and adhesive used.
All blade repairs, 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 balance weights (Task 5-82.1).
END OF TASK