REPAIR TITANIUM NOSE CAP CRACKS (AVIM)
Cure repair at 140º - 160ºF (60º - 71ºC) for 2
hours. Use heat lamps. Monitor temperature.
Use temperature indicating strips (E413). If heat
lamps are not available, go to step 18.
Adhesive will not cure at temperature
below 60ºF (15ºC). Improper cure
can cause bond failure and injury
to personnel. Do not count time at
temperature below 70ºF (21ºC) as
Cure repair without heat lamps at 70ºF (21ºC)
for 24 hours.
Vacuum source can be removed after
12 hours when repair is cured for 24
Remove vacuum source. Remove cargo strap
(25), pads (26), wood blocks (24), and polyvinyl
sheet (23). Remove masking tape (22), tube
(19), sealing tape (21 and 17), masking tape
(16), glass cloth (15), and Teflon-impregnated
Check repair area (27) for adhesive squeezeout.
Check for voids at areas where there is no
Apply bead of sealant (E336) (28) around
doubler (8). Blend sealant to form a smooth
gradual fairing from doubler to surface of blade
(5). Cure sealant for 24 hours.