President Trump’s tweet to Boeing BA, -3.58% has sent people on a trip down memory lane.

The failed Trump Shuttle and hashtag #TrumpAirlines took flight on Twitter on Monday morning after the commander-in-chief posted that one solution to the beleaguered airplane manufacturer’s problems would be rebranding the 737 Max:

“ What do I know about branding, maybe nothing (but I did become President!), but if I were Boeing, I would FIX the Boeing 737 MAX, add some additional great features, & REBRAND the plane with a new name. ” — Donald Trump

He added that, “No product has suffered like this one. But again, what the hell do I know?”

Many on Twitter were quick to remind Trump of his own failed venture in the friendly skies: the Trump Shuttle (the Eastern Shuttle airline, rebranded) which flew between NYC’s LaGuardia Airport and Boston or Washington from 1989 to 1992. It folded in 1992 after losing more than $125 million, with Trump owing $25 million to $35 million to his investors, Business Insider reported.

So #TrumpAirlines was soon trending.

Trump’s tweet followed American Airlines AAL, -3.32% grounding its 115 Boeing 737 Max flights per day through Aug. 19 over the weekend, because of the ongoing safety issues with the aircraft at the center of two deadly crashes in Ethiopia and Indonesia.

Last week, Southwest Airlines LUV, -1.49% (the largest operator of Boeing jets) also announced that it will cancel Max 737 flights through Aug. 5.

Boeing intends to finish upgrading the planes’ flight-control systems, which may have played a role in the crashes, by late April. Changes to the planes will then be submitted to the Federal Aviation Administration and foreign regulators for approval.

See:Boeing CEO apologizes for crashes, says fix is a few weeks away