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PA.X.B.R2FAA-S-ACS-6C · Nov 2023Risk management

Maneuvering with one engine inoperative.

ACS element text (the applicant demonstrates understanding of)

Maneuvering with one engine inoperative.

Bottom line

A VMC demonstration that is allowed to degrade into a single-engine stall with high asymmetrical thrust may result in an unrecoverable loss of control and a fatal accident. No multiengine airplane is approved for spins, and their spin recovery characteristics are generally very poor. No engine failure should ever be introduced below safe, intentional one-engine inoperative speed (VSSE).

FAA references

  1. AFH ch. 13 (p. 13-26) — FAA-H-8083-3C
  2. FAA-P-8740-66, Flying Light Twins Safely — FAA-P-8740-66
  3. AFH ch. 13 (p. 13-18) — FAA-H-8083-3C
  4. AIH ch. 10 (p. 10-7) — FAA-H-8083-9B
  5. AFH ch. 9 (p. 9-29) — FAA-H-8083-3C
  6. AFH ch. 9 (p. 9-14) — FAA-H-8083-3C
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