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AI.III.C.R2bFAA-S-ACS-25 · Nov 2023Risk management

b. Aviation weather reports and forecasts

ACS element text (the applicant demonstrates understanding of)

Use and limitations of: b. Aviation weather reports and forecasts

Bottom line

Commercial providers also produce forecasts, analyses, and other proprietary weather products that may substantially differ from the information contained in NWS-produced products. According to 14 CFR § 91.103, each pilot in command (PIC) shall, before beginning a flight, become familiar with all available information concerning the flight, including weather reports and forecasts.

FAA references

  1. AWH ch. 3 (pp. 3-3–3-6) — FAA-H-8083-28A
  2. AWH chs. 2, 3 (pp. 2-6, 3-1) — FAA-H-8083-28A
  3. AIM 7-1-28 (Key to Aerodrome Forecast (TAF) and Aviation Routine Weather Report (METAR)) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
  4. PHAK ch. 13 (pp. 13-5–13-6) — FAA-H-8083-25C (2023)
  5. PHAK Glossary (p. G-30) — FAA-H-8083-25C (2023)
  6. AC 91-92, para. 7.6 — AC No: 91-92
  7. PHAK ch. 13 (p. 13-2) — FAA-H-8083-25C (2023)
  8. AFH ch. 11 (p. 11-7) — FAA-H-8083-3C
  9. 14 CFR 91.103 (Preflight action.) — eCFR current as of 2026-03-05
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