Private Pilot for Airplane Category › I. Preflight Preparation › Task H. Human Factors

PA.I.H.K1l

Knowledge

Symptoms, recognition, causes, effects, and corrective actions associated with aeromedical and physiological issues, including:

Dissolved nitrogen in the bloodstream after scuba dives

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Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

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Pilot's Handbook of Aeronautical Knowledge p. 17-18
Chapter 17: Aeromedical Factors › Health and Physiological Factors Affecting Pilot Performance › DCS After Scuba Diving
symptoms of altitude-induced DCS can occur after return to ground level regardless of presence during flight. DCS After Scuba Diving Scuba diving subjects the body to increased pressure, which allows more nitrogen to dissolve in body tissues and fluids ... Figure 17-11] The reduction of atmospheric pressure that accompanies flying can produce physical problems for scuba divers. A pilot or passenger who intends to fly after scuba diving should allow the body sufficient time to rid itself of excess…
Airplane Flying Handbook p. 5-26
Chapter 5: Maintaining Aircraft Control: Upset Prevention and Recovery Training › Stalls › Spiral Dive
Spiral Dive A spiral dive, a nose-low upset, is a descending turn during which airspeed and G-load can increase rapidly and often results from a botched turn. In a spiral dive, the airplane is flying very tight circles ... nearly vertical attitude and will be accelerating because it is no longer stalled. Pilots typically get into a spiral dive during an inadvertent IMC encounter, most often when the pilot relies on kinesthetic sensations rather than on the flight instruments…
Aeronautical Information Manual p. 8-1-4
Chapter 8. Medical Facts for Pilots › Section 1. Fitness for Flight › 8-1-2. Effects of Altitude
sinus block does not clear shortly after landing, a physician should be consulted. d. Decompression Sickness After Scuba Diving. 1. A pilot or passenger who intends to fly after scuba diving should allow the body sufficient time to rid itself ... excess nitrogen absorbed during diving. If not, altitude decompression sickness due to evolved nitrogen gas can occur during exposure to reduced barometric pressure (i.e., low cabin pressure) associated with increased altitude and may lead to a serious inflight emergency…
Pilot's Handbook of Aeronautical Knowledge p. 17-9
Chapter 17: Aeromedical Factors › Health and Physiological Factors Affecting Pilot Performance › Diving or Rolling Beyond the Vertical Plane
Diving or Rolling Beyond the Vertical Plane This maneuver may produce extreme disorientation. While in straight-and-level flight, the pilot should sit normally, either with eyes closed or gaze lowered to the floor. The instructor pilot starts a positive…
Pilot's Handbook of Aeronautical Knowledge p. 5-36
Chapter 5: Aerodynamics of Flight › Load Factors › Stalls
pull up following stall recovery, significant load factors are sometimes induced. These may be further increased inadvertently during excessive diving (and consequently high airspeed) and abrupt pull ups to level flight. One usually leads to the other, thus increasing ... load factor. Abrupt pull ups at high diving speeds may impose critical loads on aircraft structures and may produce recurrent or secondary stalls by increasing the AOA to that of stalling. As a generalization, a recovery from a stall made…