“That extra pilot, who was seated in the cockpit jumpseat, correctly diagnosed the problem and told the crew how to disable a malfunctioning flight-control system and save the plane.” The next time the problem occurred, there was no one to help. Bloomberg: Pilot Who Hitched a Ride Saved Lion Air 737 Day Before Deadly Crash.

+ CBS News: Doomed Lion Air flight’s pilots reportedly scoured Boeing 737 Max manual as plane went down.

+ Quartz: The FAA’s new chief will begin his job facing an audit over the 737 Max approval. “Donald Trump will nominate former Delta Airlines executive Steve Dickson to lead the agency.” (This move comes about 2,000 tweets too late.)