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IR.II.B.R2FAA-S-ACS-8C · Nov 2023Risk management

Difference between approved and non-approved navigation devices.

ACS element text (the applicant demonstrates understanding of)

Difference between approved and non-approved navigation devices.

Bottom line

The applicant is able to identify, assess, and mitigate risk associated with: Difference between approved and non-approved navigation devices.

FAA references

  1. AC 91.21-1, paras. 7.2.3, 8.2 — AC No: 91.21-1D
  2. AC 90-105 Appendix A — AC No: 90-105A
  3. AC 91-78 ch. 20 , Electronic Aeronautical Chart Display. — AC No: 91-78A
  4. 14 CFR 91.205 (Powered civil aircraft with standard U.S. airworthiness certificates: Instrument and equipment requirements.) — eCFR current as of 2026-03-05
  5. AC 90-105, para. 8.4.4 — AC No: 90-105A
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