NTSB: Hawker 900XP spun into crash during crew‑flown post‑maintenance stall test after wing leading‑edge icing contamination
The NTSB found a Hawker 900XP crashed in Utah on Feb. 7, 2024 while the crew conducted a post‑maintenance, crew‑flown stall test. Investigators concluded contamination of the wing leading edges and reinstalled de‑ice panels, combined with inadequate stall training, led to an unrecoverable spin and crash.