"A Flydubai Boeing 737-8 MAX, registration A6-FML performing flight FZ-1746 from Belgrade (Serbia) to Dubai (United Arab Emirates), lined up Belgrade's runway 30 at taxiway D, departed at about 13:49L (12:49Z) but crossed the runway end just at a few feet AGL and climbed out slowly. The aircraft subsequently accelerated both IAS and climb and continued to Dubai for a landing without further incident.
A ground observer reported the aircraft began rotation about 300 meters short of the runway end but rotated very slowly, became airborne and crossed the runway end just a few feet above the surface, a one engine inoperative (OEI) departure would have been impossible. About 2 minutes after becoming airborne the crew queried with tower, whether they had departed taxiway E (TORA 3000 meters/9800 feet) or taxiway D (TORA 2085 meters/6800 feet), tower reported they had departed from taxiway D. The ground observer could not tell, whether the crew had requested to depart from intersection with taxiway D or E prior to or during taxi for departure.
ADS-B data suggest the aircraft crossed the runway end at less than 30 feet AGL at 156 knots over ground, reached 80 feet AGL about 400 meters/1350 feet past the runway end at 168 knots over ground (just past the localizer antenna), then joined a rather normal climb profile."
https://avherald.com/h?article=4f4e09cc&opt=0
Scary, if true.