Overview
- The NTSB called on Textron Aviation, the FAA, and the NBAA to implement defined pilot qualification standards, standardized stall test plans, clearer recovery procedures, and immediate outreach to operators.
- Affected Hawker models include the 750, 800, 800XP, 850XP, and 900XP, which require post-maintenance stall checks due to wing designs that can react unpredictably to tiny installation errors or light ice.
- Investigators found the 2024 Utah 900XP crash likely involved late stall warning activation from structural ice, while the 2025 Michigan 800XP crash remains under investigation after a rapid descent shortly after the test began.
- Pilots in both accidents were qualified for normal operations but lacked real-world stall test experience, and manuals warned of unacceptable stall behavior without clearly describing it or detailing recovery from uncommanded rolls or spins.
- The NTSB reported additional non-fatal stall-test events on the same type certificate and urged the FAA to ensure changes are incorporated into approved manuals and the NBAA to alert members immediately.