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Readback: February 2015

I read with interest and obvious necessity for possible future application, your article on hypoxia, Get Your Mask On, in December, 2014.I fly a Malibu Mirage PA 46. Ive had several decompressions in the low 20s that were attributed to squat switch/pressure switch failures. Ive now added another immediate action to pressurization problems:

Gemini Sparkle

Key Takeaways:

  • For depressurization events, prioritize immediately donning the oxygen mask before initiating an emergency descent, as it requires less cognitive effort and addresses the insidious onset of hypoxia more effectively.
  • Recovery from a tail stall (often encountered with icing or flap extension) is counter-intuitive: pilots should pull aft on the yoke, retract flaps, and reduce power, which differs from main wing stall recovery.
  • Pilots must always correctly set their altimeter for accurate flight, even though ATC applies local barometric corrections to the standard 29.92 reference transmitted by transponder Mode C.
  • When approach plate notes appear conflicting or redundant (e.g., "NA at night" vs. conditional "NA"), pilots should adhere to the most restrictive prohibition or condition.
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Lower Altitude or Mask First?
I read with interest and obvious necessity for possible future application, your article on hypoxia, “Get Your Mask On,” in December, 2014.

I fly a Malibu Mirage PA 46. I’ve had several decompressions in the low 20s that were attributed to squat switch/pressure switch failures. I’ve now added another immediate action to pressurization problems:

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