E. Procedure - Repair Molded Panels, Shrouds, and Panels with Complex Curves
S 038-080
(1)
Get access behind the panel or remove the panel from the airplane (AMM 25-52-65/401, AMM 25-52-73/401, or AMM 25-52-81/401).
S 128-081
(2)
Lightly rub the damaged area with abrasive paper on the two sides of the panel.
(3)
Clean the damaged area with solvent.
S 348-083
(4)
Do the structural repair on the fiberglass side of the panel (SRM 51-70-06).
S 168-082
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S 348-084
(5) Mix 100 parts by weight of Epocast 50-A resin to 15 parts by weight
of Epocast No. 946 hardener (BMS 8-201, Type II).
S 348-085
(6) Do the steps that follow to the front and the back of the panel:
(a) Apply a layer of the mixed adhesive resin to the side of the
damaged panel that shows in the cargo compartment.
(b) Apply a layer of BMS 9-3, Type H, fiberglass fabric on the
layer of adhesive resin.
NOTE: The fiberglass fabric should make a minimum of a 2-inch____
overlap on the area that is not damaged. For example,
the fiberglass fabric dimension that is necessary for a
1.5-inch diameter hole would be 5.5-inch diameter.
(c) Apply one more layer of the adhesive.
S 348-086
(7) Allow the adhesive to cure for a minimum of 24 hours at 77 |10
degrees F or a minimum of 1 hour at 150 |10 degrees F.
S 348-093
(8) Attach permanently with bolts, NAS603-5P or equivalent, washers,
AN960JD10L, and nuts MS21042L3, at a maximum of 2 inches apart and
approximately 0.5 inch from the edges of the fiberglass fabric.
S 218-087
(9) Make sure there is sufficient clearance between the bolts and the
adjacent systems behind the panel.
S 328-088
(10)
Grind the ends of the bolts smooth with the nuts to get sufficient clearance.
S 438-089
(11)
Install the panel if you removed it to do the repairs (AMM 25-52-65/401, AMM 25-52-73/401, or AMM 25-52-81/401).
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S 968-090
(12) If sufficient clearance is still not obtained, replace the damaged panel.
TASK 25-52-60-308-091
5. Silicone Impregnated Liner Repairs
__________________________________
A. General
(1) The task that follows is for the repair of silicone impregnated fabric which is used as the cargo door liners.
B. Consumable Materials
(1)
G01498 Thread, Fiberglass - P/N GTH-18 or equivalent Supplier: Lance Industries
(2)
G01499 Material, Biscote Patch - P/N HT101
Supplier: Bisco Products Inc.
C. Access
(1) Location Zones
208 Forward Cargo Compartment
218 Aft Cargo Compartment
D. Procedure - Repair the Silicone Impregnated Liner
S 348-092
(1) Use fiberglass thread to stitch the tear together or stitch a patch of biscote material on the damage.
NOTE: There should be approximately 7 |1 stitches for each inch and
____ a minimum material overlap of one inch.
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