Jumpseat: On Guard

Les Abend

Friday, April 01, 2011 at 05:05 PM ET

Verified

Key Takeaways:

Airline pilots generally monitor 121.5 (guard frequency) but may prioritize other channels, such as 123.45 for air-to-air communication in areas like South America, or avoid it below 10,000 feet to minimize distraction during critical flight phases.
Despite frequent mistaken transmissions or its use by ATC for lost flights, monitoring 121.5 is a professional responsibility for assisting fellow aviators in distress by relaying information and offering advice.
The author recounts a suspicious incident where a Commander pilot, claiming loss of pitch control and receiving advice from other pilots on 121.5, ultimately parachuted from his plane, raising questions due to parallels with a prior insurance fraud case.

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(March 2011) ON OCCASION, I AM ASKED if we airline types actually monitor guard frequency — 121.5. My stock answer is “Of course.” And for the most part, I’m telling the truth. However, in some circumstances it’s not practical. What are those circumstances?

I don’t want to speak for all my colleagues, but below 10,000 feet agl, which defines the sterile period for most commercial operations, I don’t make guard frequency a priority. Operating below 10,000 feet usually coincides with the terminal arrival or departure process. Chatter on another radio could be a potential distraction.