Mode C Veil Description: - Mode C veils exist within 30 nm of most Class B airports (a list of these airports is available in FAR 91, Appendix D, Section 1) - In some cases, Class B airspace (e.g. Los Angeles Class B) extends beyond the Mode C veil Requirements/Limitations: - Mode C transponder - ADS-B Out (1090ES or 978 UAT) - Certain exemptions apply. Refer to FAR 91.215 Question: If I'm based within a Mode C veil, and my transponder fails while I'm outside the veil, can I get back in? Answer: Yes, provided you telephone the ATC facility with jurisdiction over the airspace and request permission to make the flight. Upon agreeing to conditions (including direction of flight and altitude), you will be given a code number that you can mention to the controller upon initial radio contact. Ref: AIM 3-2-3 © Air Safety Institute airsafetyinstitute.orghttp://www.airsafetyinstitute.org http://www.airsafetyinstitute.org