AA.V.BFAA-S-ACS-11A · Nov 2023
Clean Configuration Stall Prevention
To determine the applicant exhibits satisfactory knowledge, risk management, and skills associated with stalls in a clean configuration. Note: See Appendix 2: Safety of Flight and Appendix 3: Aircraft, Equipment, and Operational Requirements & Limitations for information related to this Task.
Bottom line
The direct cause of every stall is an excessive angle of attack (AOA). In scenario-based training, emphasis should be placed on preventing conditions that may lead to a stall event.
FAA references
- AC 120-109, para. 3-2, 4-2 — AC No: 120-109A
- AFH ch. 1 (p. 1-13) — FAA-H-8083-3C
Knowledge
- AA.V.B.K1: Aerodynamics associated with stalls in a clean configuration, including the relationship between angle of attack, airspeed, load factor, pow
- AA.V.B.K2: Stall characteristics as they relate to airplane design, and recognition impending stall and full stall indications using sight, sound, or f
- AA.V.B.K3: Factors and situations that can lead to a stall during cruise flight and actions that can be taken to prevent it.
- AA.V.B.K4: Effects of autoflight, flight envelope protection in normal and degraded modes, and unexpected disconnects of the autopilot or autothrottle/
- AA.V.B.K5: Fundamentals of stall recovery.
- AA.V.B.K6: Effects of altitude on performance (e.g., thrust available) and flight control effectiveness during a recovery.
Risk management
- AA.V.B.R1: Factors and situations that could lead to an inadvertent stall, spin, and loss of control during cruise flight.
- AA.V.B.R2: Range and limitations of stall warning indicators (e.g., aircraft buffet, stall horn, stick shaker, etc.).
- AA.V.B.R3: Stall warning awareness.
- AA.V.B.R4: Stall recovery procedure.
- AA.V.B.R5: Secondary stalls, accelerated stalls, elevator trim stalls, and cross-control stalls.
- AA.V.B.R6: Effect of environmental elements on aircraft performance while in cruise flight as it relates to stalls (e.g., turbulence, microbursts, and
- AA.V.B.R7: Collision hazards including aircraft and terrain.
- AA.V.B.R8: Distractions, task prioritization, loss of situational awareness, or disorientation.
Skills
- AA.V.B.S1: Clear the area and select an entry altitude that allows the recovery to be completed no lower than 3,000 feet above ground level (AGL) (non-
- AA.V.B.S2: AA.VI.F.R3a AA.VI.H.R3a AA.VIII.B.R2
- AA.V.B.S3: While in cruise flight, maintain coordinated flight in simulated or actual instrument conditions throughout the maneuver.
- AA.V.B.S4: Either manually or with the autopilot engaged, smoothly adjust pitch attitude, bank angle (15°-30°), and power setting in accordance with ev
- AA.V.B.S5: Acknowledge the cue(s) and promptly recover at the first indication of an impending stall (e.g., buffet, stall horn, stick shaker, etc.).
- AA.V.B.S6: Execute a stall recovery in accordance with procedures set forth in the Pilot's Operating Handbook (POH)/Flight Manual (FM).
- AA.V.B.S7: Return to the desired flight path as specified by the evaluator.
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