Ceiling Pitot Tube Stability 
Air Facts
MAY 5, 2025
The hourly sequence report showed Springfield had a ceiling of 100 feet obscured, a visibility of 3/8 mile and fog with a surface temperature of 30 degrees F. The forecast at our arrival time at Jefferson City was for a ceiling of 1,200′ overcast with a visibility of four miles in fog. Then my worst fears became reality.
Fear of Landing
MAY 9, 2025
The two pilots remembered seeing MACH TRIM FAIL, AP STAB TRIM FAIL (Autopilot Stabilizer Trim Failure) and AP HOLDING NOSE DOWN, although they couldn’t remember the order or if there were additional messages to these. This caused g-forces of -2.3g, pushing everyone to the ceiling. For context, the aircraft design limit was +2.6g.
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