Goodrich 74-451-AA Pneumatic De-Icer FASTPatch Repair Kit

General Repair Guidelines

To maintain optimal functional efficiency of the de-icer, the following patch limits are recommended:

1. 3 small patches per 12" square. (Small patch is 2-1/1" X 1-1/4") -or-
2. 2 medium patches per 12" square. (Medium patch is 5" X 2-1/2") -or-
3. 1 large patch per 12" square. (Large patch is 5" X 10") -or-
4. 2 small patches and 1 medium patch per 12" square.

Note: ICEX II can be applied to de-icers that have been repaired with P/N 74-451-AA patch kit.

CAUTION: Patches have a one-way stretch across width of patch so patch can stretch when de-icer inflates. Patch must be installed with length parallel to de-icer tubes. Failure to do so may result in patch lifting when de-icer inflates.

1. General
1. Standard patch sizes can be trimmed to accommodate small areas of damage, so long as patch covers at least 1/2" beyond damaged area. Mark stretch direction on patch before trimming, so trimmed patch is installed with stretch in same direction as tube inflation.
2. Patch Application
• CAUTION: Preparation of de-icer surface to be patched is crucial for good patch adhesion. Failure to remove, ShineMaster® cosmetic treatment, wax, grease, oil, ICEXÒII, and other contaminants completely can result in poor patch adhesion.
1. Clean de-icer surface to be patched with detergent and hot water, using lint free cloths to remove dirt, grease and cosmetic coatings. Repeat until oil and silicone contamination is removed.
2. Use buffing shield or patch as template to outline damaged area. Buff de-icer surface with medium grit emery cloth or equivalent.

• 74-451-206 FASTpatch primer
• 74-451-187 Lot of 30 pcs. small oval patch (1-1/4" X 2-1/2")
• 74-451-188 Lot of 30 pcs. medium oval patch (2-1/2" X 5")
• 74-451-189 Lot of 10 pcs. large oval patch (5" X 10")
• 74-451-192 Lot of 3 pcs. medium grit emery cloth
• 74-451-87 1 each buffing shield