The aircraft was on a VFR flight from Ronaldsway to Blackpool. A bank of low cloud was moving out to sea, and analysis of the radar track found that, coincident with encountering this cloud, the aircraft descended and its speed reduced until it disappeared from radar. Intensive SAR efforts did not locate the aircraft or pilot.
The available evidence suggests that the aircraft may have stalled at a height from which recovery was not possible.
Rockwell Commander 114B, 2-ROAM 07-16
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