Skip to content
Define AviationCFI lesson plans to teach aviation lessons

DETRESFA (DISTRESS PHASE) [ICAO]

Emergency & Safety

All definitions
« Back to Glossary Index

The code word used to designate an emergency phase wherein there is reasonable certainty that an aircraft and its occupants are threatened by grave and imminent danger or require immediate assistance.

Source FAA Pilot/Controller Glossary · checked 2026-08-25

« Back to Glossary Index

More in Emergency & Safety

Enjoying Define Aviation ad-free?

Chip in and ads disappear right away in this browser — cancel anytime, no account needed.

Secure checkout via Stripe — Apple Pay, Google Pay, and cards.