Task 1: STC 2100A SL #139 (Service Letter). Wip technical support advised that an aircraft broke a steel MLG coupler due to corrosion. Was hard for me to believe because my MLG actuator coupler was shiny and new looking (300 hours mostly fresh water). Anyway, the kit cost $70.00 delivered.
http://www.wipaire.com/pdf/service_letters/1005856.pdf
Photograph below is my port (left) amphibious float with the original hardware:

The old steel coupler is perfect. No corrosion:

Service Letter completed;

Task 2: Wheel bearings. Back in year 2015 I switched to AeroShell #22 grease and am very happy with the results! I pulled off a wheel just to take a look, the races and rollers are freeeking shiny! Thank you Shell Oil! Will continue tomorrow repacking etc...the discs are pretty thrashed, might order new ones.


Note to self: Grease seal hole is opposite air filler neck:

Will be pulling panels tomorrow...

















