Two Cessna 402's, each with more than 20,000 TIS exhibited spar cracking and have led the FAA to issue an emergency AD, increasing the frequency of spar inspection and adding the aircraft model 414A. Aircraft with spar straps on each wing (per a previous AD) are not affected...
This is a companion discussion topic for the original entry at https://www.avweb.com/aviation-news/on-the-fly-409