Cracked And Corroded

A casting crack was found visually during the course of an annual inspection. The crack is located on the forward end of the support casting (p/n 07416031), starting 0.25 inches from the outboard mount holes and ends within 0.25 inches of the mount holes on the inboard side of the casting.

Editorial Staff

Thursday, July 19, 2012 at 12:00 AM ET

Verified

NAFI board chair-elect Karen Kalishek helped the owner of this Piper M350 with initial M350 training and also brought the airplane back to KGRB with him from Vero Beach, Florida. Courtesy Karen Kalishek

Key Takeaways:

Multiple aircraft models (Cessna 182G, 208B, Piper PA-28R-200) were found with structural cracks in critical components such as landing gear castings, inertial vanes, and aileron pulley brackets during inspections.
A Cessna 208B Grand Caravan exhibited severe corrosion on its rudder torque tube in an area inaccessible during routine maintenance, suggesting a design flaw and the need for an inspection hole.
An alternator brush failure in a Cessna T206H Turbo Stationair caused intermittent electrical issues, compounded by the alternator's limited availability for third-party overhaul.