MARCHARBPAM91-202 — Midair Collision Avoidance(maca) Pilot Controller Liaison Pamphlet

MARCHARBPAM91-202 governs midair collision avoidance and aviation safety in the airspace around March Air Reserve Base.

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  • Publication number: MARCHARBPAM91-202
  • Title: MIDAIR COLLISION AVOIDANCE(MACA) PILOT CONTROLLER LIAISON PAMPHLET
  • Date: 2021-04-08

View MARCHARBPAM91-202 on armypubs.army.mil


The publication covers collision hazards, congested airspace, aircraft using March ARB and nearby airports, and useful MACA resources. It requires aircraft to establish two-way radio communication before entering the Class C airspace.

Applies to: This pamphlet is intended for both March ARB and non-March ARB users.

Topics covered

  • Midair collision avoidance
  • Congested airspace
  • Perris parachute drop zone
  • Remotely piloted aircraft at March ARB
  • March ARB aircraft users
  • Non-March ARB aircraft users
  • Defense Internet NOTAM Service
  • Collision avoidance resources

Questions and answers

What is the pilot's responsibility for seeing and avoiding other traffic?

Request and use available ATC services; however, you are ultimately responsible for seeing and avoiding other traffic. (paragraph 1)

What should pilots do before executing a flight maneuver?

Before executing any flight maneuver, ensure the area is clear. (paragraph 1)

Where do most midair collisions occur?

The vast majority of midairs occurred at uncontrolled airports below 3,000'. (paragraph 1)

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