Repair of Seawings™ Tip Attach Pins and Bushings
100529-00
Use the following procedure to repair the Seawings™ tip attach pins and bushings.
Applicable Aircraft Serial Number
00075+
Type of Maintenance
Line
Level of Certification
LSA-RM
Task Specific Training Required
No
Special Tools Required
None
Parts Required
ICA013204 Bushing (NAS77C3-012 is obsolete for new installations)
SS-M4-RB23-4.75X13MM Pin
Aircraft System and Number
08—Fuselage and Vertical Tail
Safety Equipment
As Needed
Consumables
Isopropyl Alcohol
Hysol EA9394 Adhesive
Task Instructions
2. Inspect all bushings in the Seawings™ and interfacing pins bonded to the Seawings™ for security, corrosion and wear. Remove any deficient bushing or pin.
3. If it is necessary to replace a ICA013204 bushing in the Seawings™ tip, proceed as follows:
a. Use Hysol EA9394 adhesive.
b. Prepare all bond surfaces (bushing and carbon structure) by first cleaning with a cloth and isopropyl alcohol, then abrading with 120-180 grit aluminum oxide emery paper. Shiny bond surfaces should be dulled by sanding, but avoid unnecessary sanding of the carbon structure or excessive clearances could result.
c. Mix adhesive in accordance with manufacturer’s instructions.
d. Apply adhesive to both bond surfaces, bushing, and carbon.
e. Install the bushing so that it’s flange lies flush against the mating carbon structure. Ensure good adhesive squeeze-out around periphery of bushing.
f. Allow the adhesive to cure in accordance with manufacturer’s instructions.
4. If it is necessary to replace an SS-M4-RB23-4.75X13MM pin, proceed as follows:
a. Use Hysol EA9394 adhesive.
b. Prepare all bond surfaces (pin and carbon structure) by first cleaning with cloth and isopropyl alcohol, then abrading with 120-180 grit aluminum oxide emery paper. Shiny bond surfaces should be dulled by sanding, but avoid unnecessary sanding of the carbon structure or excessive clearances could result.
c. Install the replacement pins in their mating bushings in the Seawings™ tip.
d. Apply polyester flash tape or other thin release-type tape to the Seawings™ tip around the bushings, so any excess adhesive that squeezes out of the joint will not bond the Seawings™ and tip together.
e. Mix adhesive in accordance with manufacturer’s instructions.
f. Apply adhesive to both bond surfaces (pin’s flange and carbon mating surfaces).
g. Install the Seawings™ tip. ( Install
Seawings™ Platform Tip) Use adhesive tape as necessary to hold the tip in good alignment with Seawings™.
h. Allow the adhesive to cure in accordance with manufacturer’s instructions.
j. Remove the protective tape and check the bond lines for signs of good adhesive squeeze out and bond integrity.
Verification Method
Procedure is complete when Seawings™ tip has been attached.
Parent topic