CA.VI.B.R4FAA-S-ACS-7B · Nov 2023Risk management
Loss of a navigation signal.
Loss of a navigation signal.
Bottom line
GPS signals are vulnerable to intentional and unintentional interference from a wide variety of sources. GPS signal losses coupled with a lack of RAIM capability could present erroneous position and navigation information with no warning to the pilot. Routine checks of position against VOR or DME information could help detect a compromised GPS signal.
FAA references
- AIM 1-2-4 (Recognizing, Mitigating, and Adapting to GPS Jamming and/or Spoofing) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
- PHAK ch. 16 (p. 16-33) — FAA-H-8083-25C (2023)
- PHAK ch. 16 (p. 16-23) — FAA-H-8083-25C (2023)
- PHAK ch. 16 (p. 16-31) — FAA-H-8083-25C (2023)
- AIM 1-1-13 (User Reports Requested on NAVAID Outages) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
- PHAK ch. 16 (p. 16-34) — FAA-H-8083-25C (2023)
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