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IR.II.B.S1FAA-S-ACS-8C · Nov 2023Skills

Operate and manage installed instruments and navigation equipment.

ACS element text (the applicant demonstrates understanding of)

Operate and manage installed instruments and navigation equipment.

Bottom line

If the instrument needles move significantly when this is done, a static pressure problem exists and the alternate source should be used during the remainder of the flight.

FAA references

  1. 14 CFR 91.205 (Powered civil aircraft with standard U.S. airworthiness certificates: Instrument and equipment requirements.) — eCFR current as of 2026-03-05
  2. IFH ch. 5 (p. 5-2) — FAA-H-8083-15B
  3. 14 CFR 91.227 (Automatic Dependent Surveillance-Broadcast (ADS-B) Out equipment performance requirements.) — eCFR current as of 2026-03-05
  4. AFH ch. 18 (p. 18-15) — FAA-H-8083-3C
  5. AC 91-78 ch. 20 , Electronic Aeronautical Chart Display. — AC No: 91-78A
  6. IFH ch. 11 (p. 11-8) — FAA-H-8083-15B
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