---
title: "AIRCRAFT HAZARD AREA (AHA) — aviation glossary — OnlyPlanes"
description: "Used by ATC to segregate air traffic from a launch vehicle, reentry vehicle, amateur rocket, jettisoned stages, hardware, or falling debris generated by failures associated with any of these activities."
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Safety

# AIRCRAFT HAZARD AREA (AHA)

AHA

TERM · Safety

At a glance

## Meaning of AIRCRAFT HAZARD AREA (AHA)

Used by ATC to segregate air traffic from a launch vehicle, reentry vehicle, amateur rocket, jettisoned stages, hardware, or falling debris generated by failures associated with any of these activities.

### More about AIRCRAFT HAZARD AREA (AHA)

Used by ATC to segregate air traffic from a launch vehicle, reentry vehicle, amateur rocket, jettisoned stages, hardware, or falling debris generated by failures associated with any of these activities. An AHA is designated via NOTAM as either a TFR or stationary ALTRV. Unless otherwise specified, the vertical limits of an AHA are from the surface to unlimited.

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