934AWI21-117 — Aircraft With Hot Brakes

934AWI21-117 governs procedures and responsibilities for 934 Maintenance and Operations personnel discovering an aircraft hot brake condition.

Search 934AWI21-117

  • Publication number: 934AWI21-117
  • Title: AIRCRAFT WITH HOT BRAKES
  • Date: 2023-12-13

View 934AWI21-117 on armypubs.army.mil


It covers aircrew, ground crew, maintenance, fire department, and on-scene response procedures for suspected or confirmed hot brakes. It requires aircraft condition documentation, inspections, cooling periods, hazard-area evacuation, and serviceability determinations.

Topics covered

  • Hot brake response
  • Aircraft arrival procedures
  • Hazard-area evacuation
  • Brake cooling periods
  • Wheel and brake serviceability
  • Hot brake documentation

Questions and answers

What should ground crew do when an aircraft arrives with hot brakes?

If the ground crew discovers an aircraft has hot brakes upon arrival, place chocks fore and aft of nose landing gear tires, ensure brakes are released to facilitate cooling, and evacuate the area immediately. (paragraph 2)

How far must personnel evacuate from an aircraft with hot brakes?

Personnel will evacuate the area within a 300 foot radius of the aircraft; or 600 feet if munitions or pyrotechnics are on board. (paragraph 2)

How long must personnel remain clear of an aircraft with hot brakes?

Due to the possibility of a wheel explosion, all personnel must remain clear of the aircraft for at least 30 minutes or until the brakes have sufficiently cooled. (paragraph 2)

When can maintenance personnel approach an aircraft with hot brakes?

Personnel will not approach the aircraft without permission from MAC fire and concurrence of designated maintenance supervisor or designated OSC. (paragraph 2)

When can maintenance action begin after hot brakes have cooled?

Once the aircraft engines are shut down, maintenance personnel must wait 30 minutes after the brakes have sufficiently cooled before any maintenance action is performed. (paragraph 2)

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