Boeing 737 Max jet, grounded after 2 deadly crashes, is cleared by the FAA after changes are made. Boeing's 737 Max, the jetliner grounded for 20 months after two crashes killed 346 passengers and crew, was cleared to fly again after refitting improvements and pilot retraining by the Federal Aviation Administration. Critics say even with fixes, the twin-engine plane's design is inherently flawed and it shouldn't be allowed to fly. Ref. USAToday.